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973 lines
51 KiB
Markdown
973 lines
51 KiB
Markdown
# SRS-008 ClickHouse AES Encryption Functions
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# Software Requirements Specification
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## Table of Contents
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* 1 [Revision History](#revision-history)
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* 2 [Introduction](#introduction)
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* 3 [Terminology](#terminology)
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* 3.1 [AES](#aes)
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* 3.2 [AEAD](#aead)
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* 4 [Requirements](#requirements)
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* 4.1 [Generic](#generic)
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* 4.1.1 [RQ.SRS008.AES.Functions](#rqsrs008aesfunctions)
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* 4.2 [Compatibility](#compatibility)
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* 4.2.1 [RQ.SRS008.AES.Functions.Compatibility.MySQL](#rqsrs008aesfunctionscompatibilitymysql)
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* 4.2.2 [RQ.SRS008.AES.Functions.Compatibility.Dictionaries](#rqsrs008aesfunctionscompatibilitydictionaries)
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* 4.2.3 [RQ.SRS008.AES.Functions.Compatibility.Engine.Database.MySQL](#rqsrs008aesfunctionscompatibilityenginedatabasemysql)
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* 4.2.4 [RQ.SRS008.AES.Functions.Compatibility.Engine.Table.MySQL](#rqsrs008aesfunctionscompatibilityenginetablemysql)
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* 4.2.5 [RQ.SRS008.AES.Functions.Compatibility.TableFunction.MySQL](#rqsrs008aesfunctionscompatibilitytablefunctionmysql)
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* 4.3 [Different Modes](#different-modes)
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* 4.3.1 [RQ.SRS008.AES.Functions.DifferentModes](#rqsrs008aesfunctionsdifferentmodes)
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* 4.4 [Multiple Sources](#multiple-sources)
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* 4.4.1 [RQ.SRS008.AES.Functions.DataFromMultipleSources](#rqsrs008aesfunctionsdatafrommultiplesources)
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* 4.5 [Suppressing Sensitive Values](#suppressing-sensitive-values)
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* 4.5.1 [RQ.SRS008.AES.Functions.SuppressOutputOfSensitiveValues](#rqsrs008aesfunctionssuppressoutputofsensitivevalues)
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* 4.6 [Invalid Parameters](#invalid-parameters)
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* 4.6.1 [RQ.SRS008.AES.Functions.InvalidParameters](#rqsrs008aesfunctionsinvalidparameters)
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* 4.7 [Mismatched Values](#mismatched-values)
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* 4.7.1 [RQ.SRS008.AES.Functions.Mismatched.Key](#rqsrs008aesfunctionsmismatchedkey)
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* 4.7.2 [RQ.SRS008.AES.Functions.Mismatched.IV](#rqsrs008aesfunctionsmismatchediv)
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* 4.7.3 [RQ.SRS008.AES.Functions.Mismatched.AAD](#rqsrs008aesfunctionsmismatchedaad)
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* 4.7.4 [RQ.SRS008.AES.Functions.Mismatched.Mode](#rqsrs008aesfunctionsmismatchedmode)
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* 4.8 [Performance](#performance)
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* 4.8.1 [RQ.SRS008.AES.Functions.Check.Performance](#rqsrs008aesfunctionscheckperformance)
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* 4.8.2 [RQ.SRS008.AES.Function.Check.Performance.BestCase](#rqsrs008aesfunctioncheckperformancebestcase)
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* 4.8.3 [RQ.SRS008.AES.Function.Check.Performance.WorstCase](#rqsrs008aesfunctioncheckperformanceworstcase)
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* 4.8.4 [RQ.SRS008.AES.Functions.Check.Compression](#rqsrs008aesfunctionscheckcompression)
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* 4.8.5 [RQ.SRS008.AES.Functions.Check.Compression.LowCardinality](#rqsrs008aesfunctionscheckcompressionlowcardinality)
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* 4.9 [Encrypt Function](#encrypt-function)
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* 4.9.1 [RQ.SRS008.AES.Encrypt.Function](#rqsrs008aesencryptfunction)
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* 4.9.2 [RQ.SRS008.AES.Encrypt.Function.Syntax](#rqsrs008aesencryptfunctionsyntax)
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* 4.9.3 [RQ.SRS008.AES.Encrypt.Function.NIST.TestVectors](#rqsrs008aesencryptfunctionnisttestvectors)
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* 4.9.4 [RQ.SRS008.AES.Encrypt.Function.Parameters.PlainText](#rqsrs008aesencryptfunctionparametersplaintext)
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* 4.9.5 [RQ.SRS008.AES.Encrypt.Function.Parameters.Key](#rqsrs008aesencryptfunctionparameterskey)
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* 4.9.6 [RQ.SRS008.AES.Encrypt.Function.Parameters.Mode](#rqsrs008aesencryptfunctionparametersmode)
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* 4.9.7 [RQ.SRS008.AES.Encrypt.Function.Parameters.Mode.ValuesFormat](#rqsrs008aesencryptfunctionparametersmodevaluesformat)
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* 4.9.8 [RQ.SRS008.AES.Encrypt.Function.Parameters.Mode.Value.Invalid](#rqsrs008aesencryptfunctionparametersmodevalueinvalid)
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* 4.9.9 [RQ.SRS008.AES.Encrypt.Function.Parameters.Mode.Values](#rqsrs008aesencryptfunctionparametersmodevalues)
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* 4.9.10 [RQ.SRS008.AES.Encrypt.Function.Parameters.InitializationVector](#rqsrs008aesencryptfunctionparametersinitializationvector)
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* 4.9.11 [RQ.SRS008.AES.Encrypt.Function.Parameters.AdditionalAuthenticatedData](#rqsrs008aesencryptfunctionparametersadditionalauthenticateddata)
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* 4.9.12 [RQ.SRS008.AES.Encrypt.Function.Parameters.ReturnValue](#rqsrs008aesencryptfunctionparametersreturnvalue)
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* 4.9.13 [RQ.SRS008.AES.Encrypt.Function.Key.Length.InvalidLengthError](#rqsrs008aesencryptfunctionkeylengthinvalidlengtherror)
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* 4.9.14 [RQ.SRS008.AES.Encrypt.Function.InitializationVector.Length.InvalidLengthError](#rqsrs008aesencryptfunctioninitializationvectorlengthinvalidlengtherror)
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* 4.9.15 [RQ.SRS008.AES.Encrypt.Function.InitializationVector.NotValidForMode](#rqsrs008aesencryptfunctioninitializationvectornotvalidformode)
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* 4.9.16 [RQ.SRS008.AES.Encrypt.Function.AdditionalAuthenticationData.NotValidForMode](#rqsrs008aesencryptfunctionadditionalauthenticationdatanotvalidformode)
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* 4.9.17 [RQ.SRS008.AES.Encrypt.Function.AdditionalAuthenticationData.Length](#rqsrs008aesencryptfunctionadditionalauthenticationdatalength)
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* 4.9.18 [RQ.SRS008.AES.Encrypt.Function.NonGCMMode.KeyAndInitializationVector.Length](#rqsrs008aesencryptfunctionnongcmmodekeyandinitializationvectorlength)
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* 4.9.19 [RQ.SRS008.AES.Encrypt.Function.GCMMode.KeyAndInitializationVector.Length](#rqsrs008aesencryptfunctiongcmmodekeyandinitializationvectorlength)
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* 4.10 [Decrypt Function](#decrypt-function)
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* 4.10.1 [RQ.SRS008.AES.Decrypt.Function](#rqsrs008aesdecryptfunction)
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* 4.10.2 [RQ.SRS008.AES.Decrypt.Function.Syntax](#rqsrs008aesdecryptfunctionsyntax)
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* 4.10.3 [RQ.SRS008.AES.Decrypt.Function.Parameters.CipherText](#rqsrs008aesdecryptfunctionparametersciphertext)
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* 4.10.4 [RQ.SRS008.AES.Decrypt.Function.Parameters.Key](#rqsrs008aesdecryptfunctionparameterskey)
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* 4.10.5 [RQ.SRS008.AES.Decrypt.Function.Parameters.Mode](#rqsrs008aesdecryptfunctionparametersmode)
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* 4.10.6 [RQ.SRS008.AES.Decrypt.Function.Parameters.Mode.ValuesFormat](#rqsrs008aesdecryptfunctionparametersmodevaluesformat)
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* 4.10.7 [RQ.SRS008.AES.Decrypt.Function.Parameters.Mode.Value.Invalid](#rqsrs008aesdecryptfunctionparametersmodevalueinvalid)
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* 4.10.8 [RQ.SRS008.AES.Decrypt.Function.Parameters.Mode.Values](#rqsrs008aesdecryptfunctionparametersmodevalues)
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* 4.10.9 [RQ.SRS008.AES.Decrypt.Function.Parameters.InitializationVector](#rqsrs008aesdecryptfunctionparametersinitializationvector)
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* 4.10.10 [RQ.SRS008.AES.Decrypt.Function.Parameters.AdditionalAuthenticatedData](#rqsrs008aesdecryptfunctionparametersadditionalauthenticateddata)
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* 4.10.11 [RQ.SRS008.AES.Decrypt.Function.Parameters.ReturnValue](#rqsrs008aesdecryptfunctionparametersreturnvalue)
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* 4.10.12 [RQ.SRS008.AES.Decrypt.Function.Key.Length.InvalidLengthError](#rqsrs008aesdecryptfunctionkeylengthinvalidlengtherror)
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* 4.10.13 [RQ.SRS008.AES.Decrypt.Function.InitializationVector.Length.InvalidLengthError](#rqsrs008aesdecryptfunctioninitializationvectorlengthinvalidlengtherror)
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* 4.10.14 [RQ.SRS008.AES.Decrypt.Function.InitializationVector.NotValidForMode](#rqsrs008aesdecryptfunctioninitializationvectornotvalidformode)
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* 4.10.15 [RQ.SRS008.AES.Decrypt.Function.AdditionalAuthenticationData.NotValidForMode](#rqsrs008aesdecryptfunctionadditionalauthenticationdatanotvalidformode)
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* 4.10.16 [RQ.SRS008.AES.Decrypt.Function.AdditionalAuthenticationData.Length](#rqsrs008aesdecryptfunctionadditionalauthenticationdatalength)
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* 4.10.17 [RQ.SRS008.AES.Decrypt.Function.NonGCMMode.KeyAndInitializationVector.Length](#rqsrs008aesdecryptfunctionnongcmmodekeyandinitializationvectorlength)
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* 4.10.18 [RQ.SRS008.AES.Decrypt.Function.GCMMode.KeyAndInitializationVector.Length](#rqsrs008aesdecryptfunctiongcmmodekeyandinitializationvectorlength)
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* 4.11 [MySQL Encrypt Function](#mysql-encrypt-function)
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* 4.11.1 [RQ.SRS008.AES.MySQL.Encrypt.Function](#rqsrs008aesmysqlencryptfunction)
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* 4.11.2 [RQ.SRS008.AES.MySQL.Encrypt.Function.Syntax](#rqsrs008aesmysqlencryptfunctionsyntax)
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* 4.11.3 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.PlainText](#rqsrs008aesmysqlencryptfunctionparametersplaintext)
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* 4.11.4 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Key](#rqsrs008aesmysqlencryptfunctionparameterskey)
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* 4.11.5 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode](#rqsrs008aesmysqlencryptfunctionparametersmode)
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* 4.11.6 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.ValuesFormat](#rqsrs008aesmysqlencryptfunctionparametersmodevaluesformat)
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* 4.11.7 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Value.Invalid](#rqsrs008aesmysqlencryptfunctionparametersmodevalueinvalid)
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* 4.11.8 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Values](#rqsrs008aesmysqlencryptfunctionparametersmodevalues)
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* 4.11.9 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Values.GCM.Error](#rqsrs008aesmysqlencryptfunctionparametersmodevaluesgcmerror)
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* 4.11.10 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Values.CTR.Error](#rqsrs008aesmysqlencryptfunctionparametersmodevaluesctrerror)
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* 4.11.11 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.InitializationVector](#rqsrs008aesmysqlencryptfunctionparametersinitializationvector)
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* 4.11.12 [RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.ReturnValue](#rqsrs008aesmysqlencryptfunctionparametersreturnvalue)
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* 4.11.13 [RQ.SRS008.AES.MySQL.Encrypt.Function.Key.Length.TooShortError](#rqsrs008aesmysqlencryptfunctionkeylengthtooshorterror)
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* 4.11.14 [RQ.SRS008.AES.MySQL.Encrypt.Function.Key.Length.TooLong](#rqsrs008aesmysqlencryptfunctionkeylengthtoolong)
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* 4.11.15 [RQ.SRS008.AES.MySQL.Encrypt.Function.InitializationVector.Length.TooShortError](#rqsrs008aesmysqlencryptfunctioninitializationvectorlengthtooshorterror)
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* 4.11.16 [RQ.SRS008.AES.MySQL.Encrypt.Function.InitializationVector.Length.TooLong](#rqsrs008aesmysqlencryptfunctioninitializationvectorlengthtoolong)
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* 4.11.17 [RQ.SRS008.AES.MySQL.Encrypt.Function.InitializationVector.NotValidForMode](#rqsrs008aesmysqlencryptfunctioninitializationvectornotvalidformode)
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* 4.11.18 [RQ.SRS008.AES.MySQL.Encrypt.Function.Mode.KeyAndInitializationVector.Length](#rqsrs008aesmysqlencryptfunctionmodekeyandinitializationvectorlength)
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* 4.12 [MySQL Decrypt Function](#mysql-decrypt-function)
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* 4.12.1 [RQ.SRS008.AES.MySQL.Decrypt.Function](#rqsrs008aesmysqldecryptfunction)
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* 4.12.2 [RQ.SRS008.AES.MySQL.Decrypt.Function.Syntax](#rqsrs008aesmysqldecryptfunctionsyntax)
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* 4.12.3 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.CipherText](#rqsrs008aesmysqldecryptfunctionparametersciphertext)
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* 4.12.4 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Key](#rqsrs008aesmysqldecryptfunctionparameterskey)
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* 4.12.5 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode](#rqsrs008aesmysqldecryptfunctionparametersmode)
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* 4.12.6 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.ValuesFormat](#rqsrs008aesmysqldecryptfunctionparametersmodevaluesformat)
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* 4.12.7 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Value.Invalid](#rqsrs008aesmysqldecryptfunctionparametersmodevalueinvalid)
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* 4.12.8 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Values](#rqsrs008aesmysqldecryptfunctionparametersmodevalues)
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* 4.12.9 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Values.GCM.Error](#rqsrs008aesmysqldecryptfunctionparametersmodevaluesgcmerror)
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* 4.12.10 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Values.CTR.Error](#rqsrs008aesmysqldecryptfunctionparametersmodevaluesctrerror)
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* 4.12.11 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.InitializationVector](#rqsrs008aesmysqldecryptfunctionparametersinitializationvector)
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* 4.12.12 [RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.ReturnValue](#rqsrs008aesmysqldecryptfunctionparametersreturnvalue)
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* 4.12.13 [RQ.SRS008.AES.MySQL.Decrypt.Function.Key.Length.TooShortError](#rqsrs008aesmysqldecryptfunctionkeylengthtooshorterror)
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* 4.12.14 [RQ.SRS008.AES.MySQL.Decrypt.Function.Key.Length.TooLong](#rqsrs008aesmysqldecryptfunctionkeylengthtoolong)
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* 4.12.15 [RQ.SRS008.AES.MySQL.Decrypt.Function.InitializationVector.Length.TooShortError](#rqsrs008aesmysqldecryptfunctioninitializationvectorlengthtooshorterror)
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* 4.12.16 [RQ.SRS008.AES.MySQL.Decrypt.Function.InitializationVector.Length.TooLong](#rqsrs008aesmysqldecryptfunctioninitializationvectorlengthtoolong)
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* 4.12.17 [RQ.SRS008.AES.MySQL.Decrypt.Function.InitializationVector.NotValidForMode](#rqsrs008aesmysqldecryptfunctioninitializationvectornotvalidformode)
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* 4.12.18 [RQ.SRS008.AES.MySQL.Decrypt.Function.Mode.KeyAndInitializationVector.Length](#rqsrs008aesmysqldecryptfunctionmodekeyandinitializationvectorlength)
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* 5 [References](#references)
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## Revision History
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This document is stored in an electronic form using [Git] source control management software
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hosted in a [GitHub Repository].
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All the updates are tracked using the [Revision History].
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## Introduction
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Users need an ability to encrypt and decrypt column data with tenant specific keys.
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Use cases include protection of sensitive column values and [GDPR] right to forget policies.
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The implementation will support capabilities of the [MySQL aes_encrypt] and [MySQL aes_decrypt]
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functions which encrypt and decrypt values using the [AES] (Advanced Encryption Standard)
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algorithm. This functionality will enable encryption and decryption of data
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accessed on remote [MySQL] servers via [MySQL Dictionary] or [MySQL Database Engine],
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[MySQL Table Engine], or [MySQL Table Function].
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## Terminology
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### AES
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Advanced Encryption Standard ([AES])
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### AEAD
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Authenticated Encryption with Associated Data
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## Requirements
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### Generic
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#### RQ.SRS008.AES.Functions
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version: 1.0
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[ClickHouse] SHALL support [AES] encryption functions to encrypt and decrypt data.
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### Compatibility
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#### RQ.SRS008.AES.Functions.Compatibility.MySQL
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version: 1.0
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[ClickHouse] SHALL support [AES] encryption functions compatible with [MySQL 5.7].
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#### RQ.SRS008.AES.Functions.Compatibility.Dictionaries
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version: 1.0
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[ClickHouse] SHALL support encryption and decryption of data accessed on remote
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[MySQL] servers using [MySQL Dictionary].
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#### RQ.SRS008.AES.Functions.Compatibility.Engine.Database.MySQL
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version: 1.0
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[ClickHouse] SHALL support encryption and decryption of data accessed using [MySQL Database Engine],
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#### RQ.SRS008.AES.Functions.Compatibility.Engine.Table.MySQL
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version: 1.0
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[ClickHouse] SHALL support encryption and decryption of data accessed using [MySQL Table Engine].
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#### RQ.SRS008.AES.Functions.Compatibility.TableFunction.MySQL
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version: 1.0
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[ClickHouse] SHALL support encryption and decryption of data accessed using [MySQL Table Function].
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### Different Modes
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#### RQ.SRS008.AES.Functions.DifferentModes
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version: 1.0
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[ClickHouse] SHALL allow different modes to be supported in a single SQL statement
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using explicit function parameters.
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### Multiple Sources
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#### RQ.SRS008.AES.Functions.DataFromMultipleSources
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version: 1.0
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[ClickHouse] SHALL support handling encryption and decryption of data from multiple sources
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in the `SELECT` statement, including [ClickHouse] [MergeTree] table as well as [MySQL Dictionary],
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[MySQL Database Engine], [MySQL Table Engine], and [MySQL Table Function]
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with possibly different encryption schemes.
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### Suppressing Sensitive Values
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#### RQ.SRS008.AES.Functions.SuppressOutputOfSensitiveValues
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version: 1.0
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[ClickHouse] SHALL suppress output of [AES] `string` and `key` parameters to the system log,
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error log, and `query_log` table to prevent leakage of sensitive values.
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### Invalid Parameters
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#### RQ.SRS008.AES.Functions.InvalidParameters
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version: 1.0
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[ClickHouse] SHALL return an error when parameters are invalid.
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### Mismatched Values
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#### RQ.SRS008.AES.Functions.Mismatched.Key
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version: 1.0
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[ClickHouse] SHALL return garbage for mismatched keys.
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#### RQ.SRS008.AES.Functions.Mismatched.IV
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version: 1.0
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[ClickHouse] SHALL return garbage for mismatched initialization vector for the modes that use it.
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#### RQ.SRS008.AES.Functions.Mismatched.AAD
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version: 1.0
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[ClickHouse] SHALL return garbage for mismatched additional authentication data for the modes that use it.
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#### RQ.SRS008.AES.Functions.Mismatched.Mode
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version: 1.0
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[ClickHouse] SHALL return an error or garbage for mismatched mode.
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### Performance
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#### RQ.SRS008.AES.Functions.Check.Performance
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version: 1.0
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Performance of [AES] encryption functions SHALL be measured.
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#### RQ.SRS008.AES.Function.Check.Performance.BestCase
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version: 1.0
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Performance of [AES] encryption functions SHALL be checked for the best case
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scenario where there is one key, one initialization vector, and one large stream of data.
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#### RQ.SRS008.AES.Function.Check.Performance.WorstCase
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version: 1.0
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Performance of [AES] encryption functions SHALL be checked for the worst case
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where there are `N` keys, `N` initialization vectors and `N` very small streams of data.
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#### RQ.SRS008.AES.Functions.Check.Compression
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version: 1.0
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Effect of [AES] encryption on column compression SHALL be measured.
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#### RQ.SRS008.AES.Functions.Check.Compression.LowCardinality
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version: 1.0
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Effect of [AES] encryption on the compression of a column with [LowCardinality] data type
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SHALL be measured.
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### Encrypt Function
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#### RQ.SRS008.AES.Encrypt.Function
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version: 1.0
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[ClickHouse] SHALL support `encrypt` function to encrypt data using [AES].
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#### RQ.SRS008.AES.Encrypt.Function.Syntax
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version: 1.0
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[ClickHouse] SHALL support the following syntax for the `encrypt` function
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```sql
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encrypt(mode, plaintext, key, [iv, aad])
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```
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#### RQ.SRS008.AES.Encrypt.Function.NIST.TestVectors
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version: 1.0
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[ClickHouse] `encrypt` function output SHALL produce output that matches [NIST test vectors].
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#### RQ.SRS008.AES.Encrypt.Function.Parameters.PlainText
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version: 2.0
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[ClickHouse] SHALL support `plaintext` with `String`, `FixedString`, `Nullable(String)`,
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`Nullable(FixedString)`, `LowCardinality(String)`, or `LowCardinality(FixedString(N))` data types as
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the second parameter to the `encrypt` function that SHALL specify the data to be encrypted.
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#### RQ.SRS008.AES.Encrypt.Function.Parameters.Key
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version: 1.0
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[ClickHouse] SHALL support `key` with `String` or `FixedString` data types
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as the parameter to the `encrypt` function that SHALL specify the encryption key.
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#### RQ.SRS008.AES.Encrypt.Function.Parameters.Mode
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version: 1.0
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[ClickHouse] SHALL support `mode` with `String` or `FixedString` data types as the first parameter
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to the `encrypt` function that SHALL specify encryption key length and block encryption mode.
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#### RQ.SRS008.AES.Encrypt.Function.Parameters.Mode.ValuesFormat
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version: 1.0
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[ClickHouse] SHALL support values of the form `aes-[key length]-[mode]` for the `mode` parameter
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of the `encrypt` function where
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the `key_length` SHALL specifies the length of the key and SHALL accept
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`128`, `192`, or `256` as the values and the `mode` SHALL specify the block encryption
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mode and SHALL accept [ECB], [CBC], [CFB128], or [OFB] as well as
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[CTR] and [GCM] as the values. For example, `aes-256-ofb`.
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#### RQ.SRS008.AES.Encrypt.Function.Parameters.Mode.Value.Invalid
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version: 1.0
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|
[ClickHouse] SHALL return an error if the specified value for the `mode` parameter of the `encrypt`
|
|
function is not valid with the exception where such a mode is supported by the underlying
|
|
[OpenSSL] implementation.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.Parameters.Mode.Values
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support the following [AES] block encryption modes as the value for the `mode` parameter
|
|
of the `encrypt` function:
|
|
|
|
* `aes-128-ecb` that SHALL use [ECB] block mode encryption with 128 bit key
|
|
* `aes-192-ecb` that SHALL use [ECB] block mode encryption with 192 bit key
|
|
* `aes-256-ecb` that SHALL use [ECB] block mode encryption with 256 bit key
|
|
* `aes-128-cbc` that SHALL use [CBC] block mode encryption with 128 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 192 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 256 bit key
|
|
* `aes-128-cfb128` that SHALL use [CFB128] block mode encryption with 128 bit key
|
|
* `aes-192-cfb128` that SHALL use [CFB128] block mode encryption with 192 bit key
|
|
* `aes-256-cfb128` that SHALL use [CFB128] block mode encryption with 256 bit key
|
|
* `aes-128-ofb` that SHALL use [OFB] block mode encryption with 128 bit key
|
|
* `aes-192-ofb` that SHALL use [OFB] block mode encryption with 192 bit key
|
|
* `aes-256-ofb` that SHALL use [OFB] block mode encryption with 256 bit key
|
|
* `aes-128-gcm` that SHALL use [GCM] block mode encryption with 128 bit key
|
|
and [AEAD] 16-byte tag is appended to the resulting ciphertext according to
|
|
the [RFC5116]
|
|
* `aes-192-gcm` that SHALL use [GCM] block mode encryption with 192 bit key
|
|
and [AEAD] 16-byte tag is appended to the resulting ciphertext according to
|
|
the [RFC5116]
|
|
* `aes-256-gcm` that SHALL use [GCM] block mode encryption with 256 bit key
|
|
and [AEAD] 16-byte tag is appended to the resulting ciphertext according to
|
|
the [RFC5116]
|
|
* `aes-128-ctr` that SHALL use [CTR] block mode encryption with 128 bit key
|
|
* `aes-192-ctr` that SHALL use [CTR] block mode encryption with 192 bit key
|
|
* `aes-256-ctr` that SHALL use [CTR] block mode encryption with 256 bit key
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.Parameters.InitializationVector
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `iv` with `String` or `FixedString` data types as the optional fourth
|
|
parameter to the `encrypt` function that SHALL specify the initialization vector for block modes that require
|
|
it.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.Parameters.AdditionalAuthenticatedData
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `aad` with `String` or `FixedString` data types as the optional fifth
|
|
parameter to the `encrypt` function that SHALL specify the additional authenticated data
|
|
for block modes that require it.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.Parameters.ReturnValue
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return the encrypted value of the data
|
|
using `String` data type as the result of `encrypt` function.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.Key.Length.InvalidLengthError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `key` length is not exact for the `encrypt` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.InitializationVector.Length.InvalidLengthError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` length is specified and not of the exact size for the `encrypt` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.InitializationVector.NotValidForMode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` is specified for the `encrypt` function for a mode that does not need it.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.AdditionalAuthenticationData.NotValidForMode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `aad` is specified for the `encrypt` function for a mode that does not need it.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.AdditionalAuthenticationData.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL not limit the size of the `aad` parameter passed to the `encrypt` function.
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.NonGCMMode.KeyAndInitializationVector.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error when the `encrypt` function is called with the following parameter values
|
|
when using non-GCM modes
|
|
|
|
* `aes-128-ecb` mode and `key` is not 16 bytes or `iv` or `aad` is specified
|
|
* `aes-192-ecb` mode and `key` is not 24 bytes or `iv` or `aad` is specified
|
|
* `aes-256-ecb` mode and `key` is not 32 bytes or `iv` or `aad` is specified
|
|
* `aes-128-cbc` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-cbc` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cbc` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-cfb1` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-cfb1` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cfb1` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-cfb8` mode and `key` is not 16 bytes and if specified `iv` is not 16 bytes
|
|
* `aes-192-cfb8` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cfb8` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-cfb128` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-cfb128` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cfb128` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-ofb` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-ofb` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-ofb` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-ctr` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes
|
|
* `aes-192-ctr` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes
|
|
* `aes-256-ctr` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes
|
|
|
|
#### RQ.SRS008.AES.Encrypt.Function.GCMMode.KeyAndInitializationVector.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error when the `encrypt` function is called with the following parameter values
|
|
when using GCM modes
|
|
|
|
* `aes-128-gcm` mode and `key` is not 16 bytes or `iv` is not specified
|
|
* `aes-192-gcm` mode and `key` is not 24 bytes or `iv` is not specified
|
|
* `aes-256-gcm` mode and `key` is not 32 bytes or `iv` is not specified
|
|
|
|
### Decrypt Function
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `decrypt` function to decrypt data using [AES].
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Syntax
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support the following syntax for the `decrypt` function
|
|
|
|
```sql
|
|
decrypt(mode, ciphertext, key, [iv, aad])
|
|
```
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.CipherText
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `ciphertext` accepting `FixedString` or `String` data types as
|
|
the second parameter to the `decrypt` function that SHALL specify the data to be decrypted.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.Key
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `key` with `String` or `FixedString` data types
|
|
as the third parameter to the `decrypt` function that SHALL specify the encryption key.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.Mode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `mode` with `String` or `FixedString` data types as the first parameter
|
|
to the `decrypt` function that SHALL specify encryption key length and block encryption mode.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.Mode.ValuesFormat
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support values of the form `aes-[key length]-[mode]` for the `mode` parameter
|
|
of the `decrypt` function where
|
|
the `key_length` SHALL specifies the length of the key and SHALL accept
|
|
`128`, `192`, or `256` as the values and the `mode` SHALL specify the block encryption
|
|
mode and SHALL accept [ECB], [CBC], [CFB128], or [OFB] as well as
|
|
[CTR] and [GCM] as the values. For example, `aes-256-ofb`.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.Mode.Value.Invalid
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the specified value for the `mode` parameter of the `decrypt`
|
|
function is not valid with the exception where such a mode is supported by the underlying
|
|
[OpenSSL] implementation.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.Mode.Values
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support the following [AES] block encryption modes as the value for the `mode` parameter
|
|
of the `decrypt` function:
|
|
|
|
* `aes-128-ecb` that SHALL use [ECB] block mode encryption with 128 bit key
|
|
* `aes-192-ecb` that SHALL use [ECB] block mode encryption with 192 bit key
|
|
* `aes-256-ecb` that SHALL use [ECB] block mode encryption with 256 bit key
|
|
* `aes-128-cbc` that SHALL use [CBC] block mode encryption with 128 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 192 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 256 bit key
|
|
* `aes-128-cfb128` that SHALL use [CFB128] block mode encryption with 128 bit key
|
|
* `aes-192-cfb128` that SHALL use [CFB128] block mode encryption with 192 bit key
|
|
* `aes-256-cfb128` that SHALL use [CFB128] block mode encryption with 256 bit key
|
|
* `aes-128-ofb` that SHALL use [OFB] block mode encryption with 128 bit key
|
|
* `aes-192-ofb` that SHALL use [OFB] block mode encryption with 192 bit key
|
|
* `aes-256-ofb` that SHALL use [OFB] block mode encryption with 256 bit key
|
|
* `aes-128-gcm` that SHALL use [GCM] block mode encryption with 128 bit key
|
|
and [AEAD] 16-byte tag is expected present at the end of the ciphertext according to
|
|
the [RFC5116]
|
|
* `aes-192-gcm` that SHALL use [GCM] block mode encryption with 192 bit key
|
|
and [AEAD] 16-byte tag is expected present at the end of the ciphertext according to
|
|
the [RFC5116]
|
|
* `aes-256-gcm` that SHALL use [GCM] block mode encryption with 256 bit key
|
|
and [AEAD] 16-byte tag is expected present at the end of the ciphertext according to
|
|
the [RFC5116]
|
|
* `aes-128-ctr` that SHALL use [CTR] block mode encryption with 128 bit key
|
|
* `aes-192-ctr` that SHALL use [CTR] block mode encryption with 192 bit key
|
|
* `aes-256-ctr` that SHALL use [CTR] block mode encryption with 256 bit key
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.InitializationVector
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `iv` with `String` or `FixedString` data types as the optional fourth
|
|
parameter to the `decrypt` function that SHALL specify the initialization vector for block modes that require
|
|
it.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.AdditionalAuthenticatedData
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `aad` with `String` or `FixedString` data types as the optional fifth
|
|
parameter to the `decrypt` function that SHALL specify the additional authenticated data
|
|
for block modes that require it.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Parameters.ReturnValue
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return the decrypted value of the data
|
|
using `String` data type as the result of `decrypt` function.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.Key.Length.InvalidLengthError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `key` length is not exact for the `decrypt` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.InitializationVector.Length.InvalidLengthError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` is specified and the length is not exact for the `decrypt` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.InitializationVector.NotValidForMode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` is specified for the `decrypt` function
|
|
for a mode that does not need it.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.AdditionalAuthenticationData.NotValidForMode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `aad` is specified for the `decrypt` function
|
|
for a mode that does not need it.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.AdditionalAuthenticationData.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL not limit the size of the `aad` parameter passed to the `decrypt` function.
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.NonGCMMode.KeyAndInitializationVector.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error when the `decrypt` function is called with the following parameter values
|
|
when using non-GCM modes
|
|
|
|
* `aes-128-ecb` mode and `key` is not 16 bytes or `iv` or `aad` is specified
|
|
* `aes-192-ecb` mode and `key` is not 24 bytes or `iv` or `aad` is specified
|
|
* `aes-256-ecb` mode and `key` is not 32 bytes or `iv` or `aad` is specified
|
|
* `aes-128-cbc` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-cbc` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cbc` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-cfb1` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-cfb1` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cfb1` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-cfb8` mode and `key` is not 16 bytes and if specified `iv` is not 16 bytes
|
|
* `aes-192-cfb8` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cfb8` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-cfb128` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-cfb128` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-cfb128` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-ofb` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-192-ofb` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-256-ofb` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes or `aad` is specified
|
|
* `aes-128-ctr` mode and `key` is not 16 bytes or if specified `iv` is not 16 bytes
|
|
* `aes-192-ctr` mode and `key` is not 24 bytes or if specified `iv` is not 16 bytes
|
|
* `aes-256-ctr` mode and `key` is not 32 bytes or if specified `iv` is not 16 bytes
|
|
|
|
#### RQ.SRS008.AES.Decrypt.Function.GCMMode.KeyAndInitializationVector.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error when the `decrypt` function is called with the following parameter values
|
|
when using GCM modes
|
|
|
|
* `aes-128-gcm` mode and `key` is not 16 bytes or `iv` is not specified
|
|
* `aes-192-gcm` mode and `key` is not 24 bytes or `iv` is not specified
|
|
* `aes-256-gcm` mode and `key` is not 32 bytes or `iv` is not specified
|
|
|
|
### MySQL Encrypt Function
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `aes_encrypt_mysql` function to encrypt data using [AES].
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Syntax
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support the following syntax for the `aes_encrypt_mysql` function
|
|
|
|
```sql
|
|
aes_encrypt_mysql(mode, plaintext, key, [iv])
|
|
```
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.PlainText
|
|
version: 2.0
|
|
|
|
[ClickHouse] SHALL support `plaintext` with `String`, `FixedString`, `Nullable(String)`,
|
|
`Nullable(FixedString)`, `LowCardinality(String)`, or `LowCardinality(FixedString(N))` data types as
|
|
the second parameter to the `aes_encrypt_mysql` function that SHALL specify the data to be encrypted.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Key
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `key` with `String` or `FixedString` data types
|
|
as the third parameter to the `aes_encrypt_mysql` function that SHALL specify the encryption key.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `mode` with `String` or `FixedString` data types as the first parameter
|
|
to the `aes_encrypt_mysql` function that SHALL specify encryption key length and block encryption mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.ValuesFormat
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support values of the form `aes-[key length]-[mode]` for the `mode` parameter
|
|
of the `aes_encrypt_mysql` function where
|
|
the `key_length` SHALL specifies the length of the key and SHALL accept
|
|
`128`, `192`, or `256` as the values and the `mode` SHALL specify the block encryption
|
|
mode and SHALL accept [ECB], [CBC], [CFB128], or [OFB]. For example, `aes-256-ofb`.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Value.Invalid
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the specified value for the `mode` parameter of the `aes_encrypt_mysql`
|
|
function is not valid with the exception where such a mode is supported by the underlying
|
|
[OpenSSL] implementation.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Values
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support the following [AES] block encryption modes as the value for the `mode` parameter
|
|
of the `aes_encrypt_mysql` function:
|
|
|
|
* `aes-128-ecb` that SHALL use [ECB] block mode encryption with 128 bit key
|
|
* `aes-192-ecb` that SHALL use [ECB] block mode encryption with 192 bit key
|
|
* `aes-256-ecb` that SHALL use [ECB] block mode encryption with 256 bit key
|
|
* `aes-128-cbc` that SHALL use [CBC] block mode encryption with 128 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 192 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 256 bit key
|
|
* `aes-128-cfb128` that SHALL use [CFB128] block mode encryption with 128 bit key
|
|
* `aes-192-cfb128` that SHALL use [CFB128] block mode encryption with 192 bit key
|
|
* `aes-256-cfb128` that SHALL use [CFB128] block mode encryption with 256 bit key
|
|
* `aes-128-ofb` that SHALL use [OFB] block mode encryption with 128 bit key
|
|
* `aes-192-ofb` that SHALL use [OFB] block mode encryption with 192 bit key
|
|
* `aes-256-ofb` that SHALL use [OFB] block mode encryption with 256 bit key
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Values.GCM.Error
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if any of the following [GCM] modes are specified as the value
|
|
for the `mode` parameter of the `aes_encrypt_mysql` function
|
|
|
|
* `aes-128-gcm`
|
|
* `aes-192-gcm`
|
|
* `aes-256-gcm`
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.Mode.Values.CTR.Error
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if any of the following [CTR] modes are specified as the value
|
|
for the `mode` parameter of the `aes_encrypt_mysql` function
|
|
|
|
* `aes-128-ctr`
|
|
* `aes-192-ctr`
|
|
* `aes-256-ctr`
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.InitializationVector
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `iv` with `String` or `FixedString` data types as the optional fourth
|
|
parameter to the `aes_encrypt_mysql` function that SHALL specify the initialization vector for block modes that require
|
|
it.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Parameters.ReturnValue
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return the encrypted value of the data
|
|
using `String` data type as the result of `aes_encrypt_mysql` function.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Key.Length.TooShortError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `key` length is less than the minimum for the `aes_encrypt_mysql`
|
|
function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Key.Length.TooLong
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL use folding algorithm specified below if the `key` length is longer than required
|
|
for the `aes_encrypt_mysql` function for a given block mode.
|
|
|
|
```python
|
|
def fold_key(key, cipher_key_size):
|
|
key = list(key) if not isinstance(key, (list, tuple)) else key
|
|
folded_key = key[:cipher_key_size]
|
|
for i in range(cipher_key_size, len(key)):
|
|
print(i % cipher_key_size, i)
|
|
folded_key[i % cipher_key_size] ^= key[i]
|
|
return folded_key
|
|
```
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.InitializationVector.Length.TooShortError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` length is specified and is less than the minimum
|
|
that is required for the `aes_encrypt_mysql` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.InitializationVector.Length.TooLong
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL use the first `N` bytes that are required if the `iv` is specified and
|
|
its length is longer than required for the `aes_encrypt_mysql` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.InitializationVector.NotValidForMode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` is specified for the `aes_encrypt_mysql`
|
|
function for a mode that does not need it.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Encrypt.Function.Mode.KeyAndInitializationVector.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error when the `aes_encrypt_mysql` function is called with the following parameter values
|
|
|
|
* `aes-128-ecb` mode and `key` is less than 16 bytes or `iv` is specified
|
|
* `aes-192-ecb` mode and `key` is less than 24 bytes or `iv` is specified
|
|
* `aes-256-ecb` mode and `key` is less than 32 bytes or `iv` is specified
|
|
* `aes-128-cbc` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-cbc` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cbc` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-cfb1` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-cfb1` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cfb1` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-cfb8` mode and `key` is less than 16 bytes and if specified `iv` is less than 16 bytes
|
|
* `aes-192-cfb8` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cfb8` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-cfb128` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-cfb128` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cfb128` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-ofb` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-ofb` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-ofb` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
|
|
### MySQL Decrypt Function
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `aes_decrypt_mysql` function to decrypt data using [AES].
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Syntax
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support the following syntax for the `aes_decrypt_mysql` function
|
|
|
|
```sql
|
|
aes_decrypt_mysql(mode, ciphertext, key, [iv])
|
|
```
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.CipherText
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `ciphertext` accepting any data type as
|
|
the second parameter to the `aes_decrypt_mysql` function that SHALL specify the data to be decrypted.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Key
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `key` with `String` or `FixedString` data types
|
|
as the third parameter to the `aes_decrypt_mysql` function that SHALL specify the encryption key.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `mode` with `String` or `FixedString` data types as the first parameter
|
|
to the `aes_decrypt_mysql` function that SHALL specify encryption key length and block encryption mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.ValuesFormat
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support values of the form `aes-[key length]-[mode]` for the `mode` parameter
|
|
of the `aes_decrypt_mysql` function where
|
|
the `key_length` SHALL specifies the length of the key and SHALL accept
|
|
`128`, `192`, or `256` as the values and the `mode` SHALL specify the block encryption
|
|
mode and SHALL accept [ECB], [CBC], [CFB128], or [OFB]. For example, `aes-256-ofb`.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Value.Invalid
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the specified value for the `mode` parameter of the `aes_decrypt_mysql`
|
|
function is not valid with the exception where such a mode is supported by the underlying
|
|
[OpenSSL] implementation.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Values
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support the following [AES] block encryption modes as the value for the `mode` parameter
|
|
of the `aes_decrypt_mysql` function:
|
|
|
|
* `aes-128-ecb` that SHALL use [ECB] block mode encryption with 128 bit key
|
|
* `aes-192-ecb` that SHALL use [ECB] block mode encryption with 192 bit key
|
|
* `aes-256-ecb` that SHALL use [ECB] block mode encryption with 256 bit key
|
|
* `aes-128-cbc` that SHALL use [CBC] block mode encryption with 128 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 192 bit key
|
|
* `aes-192-cbc` that SHALL use [CBC] block mode encryption with 256 bit key
|
|
* `aes-128-cfb128` that SHALL use [CFB128] block mode encryption with 128 bit key
|
|
* `aes-192-cfb128` that SHALL use [CFB128] block mode encryption with 192 bit key
|
|
* `aes-256-cfb128` that SHALL use [CFB128] block mode encryption with 256 bit key
|
|
* `aes-128-ofb` that SHALL use [OFB] block mode encryption with 128 bit key
|
|
* `aes-192-ofb` that SHALL use [OFB] block mode encryption with 192 bit key
|
|
* `aes-256-ofb` that SHALL use [OFB] block mode encryption with 256 bit key
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Values.GCM.Error
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if any of the following [GCM] modes are specified as the value
|
|
for the `mode` parameter of the `aes_decrypt_mysql` function
|
|
|
|
* `aes-128-gcm`
|
|
* `aes-192-gcm`
|
|
* `aes-256-gcm`
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.Mode.Values.CTR.Error
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if any of the following [CTR] modes are specified as the value
|
|
for the `mode` parameter of the `aes_decrypt_mysql` function
|
|
|
|
* `aes-128-ctr`
|
|
* `aes-192-ctr`
|
|
* `aes-256-ctr`
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.InitializationVector
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL support `iv` with `String` or `FixedString` data types as the optional fourth
|
|
parameter to the `aes_decrypt_mysql` function that SHALL specify the initialization vector for block modes that require
|
|
it.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Parameters.ReturnValue
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return the decrypted value of the data
|
|
using `String` data type as the result of `aes_decrypt_mysql` function.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Key.Length.TooShortError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `key` length is less than the minimum for the `aes_decrypt_mysql`
|
|
function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Key.Length.TooLong
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL use folding algorithm specified below if the `key` length is longer than required
|
|
for the `aes_decrypt_mysql` function for a given block mode.
|
|
|
|
```python
|
|
def fold_key(key, cipher_key_size):
|
|
key = list(key) if not isinstance(key, (list, tuple)) else key
|
|
folded_key = key[:cipher_key_size]
|
|
for i in range(cipher_key_size, len(key)):
|
|
print(i % cipher_key_size, i)
|
|
folded_key[i % cipher_key_size] ^= key[i]
|
|
return folded_key
|
|
```
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.InitializationVector.Length.TooShortError
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` length is specified and is less than the minimum
|
|
that is required for the `aes_decrypt_mysql` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.InitializationVector.Length.TooLong
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL use the first `N` bytes that are required if the `iv` is specified and
|
|
its length is longer than required for the `aes_decrypt_mysql` function for a given block mode.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.InitializationVector.NotValidForMode
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error if the `iv` is specified for the `aes_decrypt_mysql`
|
|
function for a mode that does not need it.
|
|
|
|
#### RQ.SRS008.AES.MySQL.Decrypt.Function.Mode.KeyAndInitializationVector.Length
|
|
version: 1.0
|
|
|
|
[ClickHouse] SHALL return an error when the `aes_decrypt_mysql` function is called with the following parameter values
|
|
|
|
* `aes-128-ecb` mode and `key` is less than 16 bytes or `iv` is specified
|
|
* `aes-192-ecb` mode and `key` is less than 24 bytes or `iv` is specified
|
|
* `aes-256-ecb` mode and `key` is less than 32 bytes or `iv` is specified
|
|
* `aes-128-cbc` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-cbc` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cbc` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-cfb1` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-cfb1` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cfb1` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-cfb8` mode and `key` is less than 16 bytes and if specified `iv` is less than 16 bytes
|
|
* `aes-192-cfb8` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cfb8` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-cfb128` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-cfb128` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-cfb128` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-128-ofb` mode and `key` is less than 16 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-192-ofb` mode and `key` is less than 24 bytes or if specified `iv` is less than 16 bytes
|
|
* `aes-256-ofb` mode and `key` is less than 32 bytes or if specified `iv` is less than 16 bytes
|
|
|
|
## References
|
|
|
|
* **GDPR:** https://en.wikipedia.org/wiki/General_Data_Protection_Regulation
|
|
* **MySQL:** https://www.mysql.com/
|
|
* **AES:** https://en.wikipedia.org/wiki/Advanced_Encryption_Standard
|
|
* **ClickHouse:** https://clickhouse.tech
|
|
* **Git:** https://git-scm.com/
|
|
|
|
[AEAD]: #aead
|
|
[OpenSSL]: https://www.openssl.org/
|
|
[LowCardinality]: https://clickhouse.tech/docs/en/sql-reference/data-types/lowcardinality/
|
|
[MergeTree]: https://clickhouse.tech/docs/en/engines/table-engines/mergetree-family/mergetree/
|
|
[MySQL Database Engine]: https://clickhouse.tech/docs/en/engines/database-engines/mysql/
|
|
[MySQL Table Engine]: https://clickhouse.tech/docs/en/engines/table-engines/integrations/mysql/
|
|
[MySQL Table Function]: https://clickhouse.tech/docs/en/sql-reference/table-functions/mysql/
|
|
[MySQL Dictionary]: https://clickhouse.tech/docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources/#dicts-external_dicts_dict_sources-mysql
|
|
[GCM]: https://en.wikipedia.org/wiki/Galois/Counter_Mode
|
|
[CTR]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Counter_(CTR)
|
|
[CBC]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_block_chaining_(CBC)
|
|
[ECB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Electronic_codebook_(ECB)
|
|
[CFB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_feedback_(CFB)
|
|
[CFB128]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_feedback_(CFB)
|
|
[OFB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Output_feedback_(OFB)
|
|
[GDPR]: https://en.wikipedia.org/wiki/General_Data_Protection_Regulation
|
|
[RFC5116]: https://tools.ietf.org/html/rfc5116#section-5.1
|
|
[MySQL]: https://www.mysql.com/
|
|
[MySQL 5.7]: https://dev.mysql.com/doc/refman/5.7/en/
|
|
[MySQL aes_encrypt]: https://dev.mysql.com/doc/refman/5.7/en/encryption-functions.html#function_aes-encrypt
|
|
[MySQL aes_decrypt]: https://dev.mysql.com/doc/refman/5.7/en/encryption-functions.html#function_aes-decrypt
|
|
[AES]: https://en.wikipedia.org/wiki/Advanced_Encryption_Standard
|
|
[ClickHouse]: https://clickhouse.tech
|
|
[GitHub repository]: https://github.com/ClickHouse/ClickHouse/blob/master/tests/testflows/aes_encryption/requirements/requirements.md
|
|
[Revision history]: https://github.com/ClickHouse/ClickHouse/commits/master/tests/testflows/aes_encryption/requirements/requirements.md
|
|
[Git]: https://git-scm.com/
|
|
[NIST test vectors]: https://csrc.nist.gov/Projects/Cryptographic-Algorithm-Validation-Program
|