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138 lines
9.3 KiB
SQL
138 lines
9.3 KiB
SQL
--- aes_decrypt_mysql(string, key, block_mode[, init_vector, AAD])
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-- The MySQL-compatitable encryption, only ecb, cbc, cfb128 and ofb modes are supported,
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-- just like for MySQL
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-- https://dev.mysql.com/doc/refman/8.0/en/encryption-functions.html#function_aes-encrypt
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-- https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_block_encryption_mode
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-- Please note that for keys that exceed mode-specific length, keys are folded in a MySQL-specific way,
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-- meaning that whole key is used, but effective key length is still determined by mode.
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-- when key doesn't exceed the default mode length, ecryption result equals with AES_encypt()
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-----------------------------------------------------------------------------------------
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-- error cases
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-----------------------------------------------------------------------------------------
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SELECT aes_decrypt_mysql(); --{serverError 42} not enough arguments
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SELECT aes_decrypt_mysql('aes-128-ecb'); --{serverError 42} not enough arguments
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SELECT aes_decrypt_mysql('aes-128-ecb', 'text'); --{serverError 42} not enough arguments
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-- Mode
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SELECT aes_decrypt_mysql(789, 'text', 'key'); --{serverError 43} bad mode type
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SELECT aes_decrypt_mysql('blah blah blah', 'text', 'key'); -- {serverError 36} garbage mode value
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SELECT aes_decrypt_mysql('des-ede3-ecb', 'text', 'key'); -- {serverError 36} bad mode value of valid cipher name
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SELECT aes_decrypt_mysql('aes-128-gcm', 'text', 'key'); -- {serverError 36} mode is not supported by _mysql-functions
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SELECT decrypt(789, 'text', 'key'); --{serverError 43} bad mode type
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SELECT decrypt('blah blah blah', 'text', 'key'); -- {serverError 36} garbage mode value
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SELECT decrypt('des-ede3-ecb', 'text', 'key'); -- {serverError 36} bad mode value of valid cipher name
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-- Key
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SELECT aes_decrypt_mysql('aes-128-ecb', 'text', 456); --{serverError 43} bad key type
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SELECT aes_decrypt_mysql('aes-128-ecb', 'text', 'key'); -- {serverError 36} key is too short
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SELECT decrypt('aes-128-ecb', 'text'); --{serverError 42} key is missing
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SELECT decrypt('aes-128-ecb', 'text', 456); --{serverError 43} bad key type
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SELECT decrypt('aes-128-ecb', 'text', 'key'); -- {serverError 36} key is too short
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SELECT decrypt('aes-128-ecb', 'text', 'keykeykeykeykeykeykeykeykeykeykeykey'); -- {serverError 36} key is to long
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-- IV
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SELECT aes_decrypt_mysql('aes-128-ecb', 'text', 'key', 1011); --{serverError 43} bad IV type 6
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SELECT aes_decrypt_mysql('aes-128-ecb', 'text', 'key', 'iv'); --{serverError 36} IV is too short 4
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SELECT decrypt('aes-128-cbc', 'text', 'keykeykeykeykeyk', 1011); --{serverError 43} bad IV type 1
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SELECT decrypt('aes-128-cbc', 'text', 'keykeykeykeykeyk', 'iviviviviviviviviviviviviviviviviviviviviv'); --{serverError 36} IV is too long 3
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SELECT decrypt('aes-128-cbc', 'text', 'keykeykeykeykeyk', 'iv'); --{serverError 36} IV is too short 2
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--AAD
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SELECT aes_decrypt_mysql('aes-128-ecb', 'text', 'key', 'IV', 1213); --{serverError 42} too many arguments
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SELECT decrypt('aes-128-ecb', 'text', 'key', 'IV', 1213); --{serverError 43} bad AAD type
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SELECT decrypt('aes-128-gcm', 'text', 'key', 'IV', 1213); --{serverError 43} bad AAD type
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-- Invalid ciphertext should cause an error or produce garbage
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SELECT ignore(decrypt('aes-128-ecb', 'hello there', '1111111111111111')); -- {serverError 454} 1
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SELECT ignore(decrypt('aes-128-cbc', 'hello there', '1111111111111111')); -- {serverError 454} 2
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SELECT ignore(decrypt('aes-128-ofb', 'hello there', '1111111111111111')); -- GIGO
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SELECT ignore(decrypt('aes-128-ctr', 'hello there', '1111111111111111')); -- GIGO
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SELECT decrypt('aes-128-ctr', '', '1111111111111111') == '';
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-----------------------------------------------------------------------------------------
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-- Validate against predefined ciphertext,plaintext,key and IV for MySQL compatibility mode
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-----------------------------------------------------------------------------------------
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CREATE TABLE encryption_test
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(
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input String,
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key String DEFAULT unhex('fb9958e2e897ef3fdb49067b51a24af645b3626eed2f9ea1dc7fd4dd71b7e38f9a68db2a3184f952382c783785f9d77bf923577108a88adaacae5c141b1576b0'),
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iv String DEFAULT unhex('8CA3554377DFF8A369BC50A89780DD85'),
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key32 String DEFAULT substring(key, 1, 32),
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key24 String DEFAULT substring(key, 1, 24),
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key16 String DEFAULT substring(key, 1, 16)
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) Engine = Memory;
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INSERT INTO encryption_test (input)
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VALUES (''), ('text'), ('What Is ClickHouse? ClickHouse is a column-oriented database management system (DBMS) for online analytical processing of queries (OLAP).');
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SELECT 'MySQL-compatitable mode, with key folding, no length checks, etc.';
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SELECT 'aes-128-cbc' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-192-cbc' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-256-cbc' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-128-cfb128' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-192-cfb128' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-256-cfb128' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-128-ecb' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-192-ecb' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-256-ecb' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-128-ofb' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-192-ofb' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'aes-256-ofb' as mode, aes_decrypt_mysql(mode, aes_encrypt_mysql(mode, input, key, iv), key, iv) == input FROM encryption_test;
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SELECT 'Strict mode without key folding and proper key and iv lengths checks.';
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SELECT 'aes-128-cbc' as mode, decrypt(mode, encrypt(mode, input, key16, iv), key16, iv) == input FROM encryption_test;
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SELECT 'aes-192-cbc' as mode, decrypt(mode, encrypt(mode, input, key24, iv), key24, iv) == input FROM encryption_test;
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SELECT 'aes-256-cbc' as mode, decrypt(mode, encrypt(mode, input, key32, iv), key32, iv) == input FROM encryption_test;
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SELECT 'aes-128-cfb128' as mode, decrypt(mode, encrypt(mode, input, key16, iv), key16, iv) == input FROM encryption_test;
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SELECT 'aes-192-cfb128' as mode, decrypt(mode, encrypt(mode, input, key24, iv), key24, iv) == input FROM encryption_test;
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SELECT 'aes-256-cfb128' as mode, decrypt(mode, encrypt(mode, input, key32, iv), key32, iv) == input FROM encryption_test;
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SELECT 'aes-128-ctr' as mode, decrypt(mode, encrypt(mode, input, key16, iv), key16, iv) == input FROM encryption_test;
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SELECT 'aes-192-ctr' as mode, decrypt(mode, encrypt(mode, input, key24, iv), key24, iv) == input FROM encryption_test;
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SELECT 'aes-256-ctr' as mode, decrypt(mode, encrypt(mode, input, key32, iv), key32, iv) == input FROM encryption_test;
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SELECT 'aes-128-ecb' as mode, decrypt(mode, encrypt(mode, input, key16), key16) == input FROM encryption_test;
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SELECT 'aes-192-ecb' as mode, decrypt(mode, encrypt(mode, input, key24), key24) == input FROM encryption_test;
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SELECT 'aes-256-ecb' as mode, decrypt(mode, encrypt(mode, input, key32), key32) == input FROM encryption_test;
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SELECT 'aes-128-ofb' as mode, decrypt(mode, encrypt(mode, input, key16, iv), key16, iv) == input FROM encryption_test;
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SELECT 'aes-192-ofb' as mode, decrypt(mode, encrypt(mode, input, key24, iv), key24, iv) == input FROM encryption_test;
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SELECT 'aes-256-ofb' as mode, decrypt(mode, encrypt(mode, input, key32, iv), key32, iv) == input FROM encryption_test;
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SELECT 'GCM mode with IV';
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SELECT 'aes-128-gcm' as mode, decrypt(mode, encrypt(mode, input, key16, iv), key16, iv) == input FROM encryption_test;
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SELECT 'aes-192-gcm' as mode, decrypt(mode, encrypt(mode, input, key24, iv), key24, iv) == input FROM encryption_test;
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SELECT 'aes-256-gcm' as mode, decrypt(mode, encrypt(mode, input, key32, iv), key32, iv) == input FROM encryption_test;
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SELECT 'GCM mode with IV and AAD';
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SELECT 'aes-128-gcm' as mode, decrypt(mode, encrypt(mode, input, key16, iv, 'AAD'), key16, iv, 'AAD') == input FROM encryption_test;
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SELECT 'aes-192-gcm' as mode, decrypt(mode, encrypt(mode, input, key24, iv, 'AAD'), key24, iv, 'AAD') == input FROM encryption_test;
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SELECT 'aes-256-gcm' as mode, decrypt(mode, encrypt(mode, input, key32, iv, 'AAD'), key32, iv, 'AAD') == input FROM encryption_test;
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-- based on https://github.com/openssl/openssl/blob/master/demos/evp/aesgcm.c#L20
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WITH
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unhex('eebc1f57487f51921c0465665f8ae6d1658bb26de6f8a069a3520293a572078f') as key,
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unhex('67ba0510262ae487d737ee6298f77e0c') as tag,
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unhex('99aa3e68ed8173a0eed06684') as iv,
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unhex('f56e87055bc32d0eeb31b2eacc2bf2a5') as plaintext,
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unhex('4d23c3cec334b49bdb370c437fec78de') as aad,
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unhex('f7264413a84c0e7cd536867eb9f21736') as ciphertext
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SELECT
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hex(decrypt('aes-256-gcm', concat(ciphertext, tag), key, iv, aad)) as plaintext_actual,
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plaintext_actual = hex(plaintext);
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DROP TABLE encryption_test;
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