From 767f1352ebe12585be2869d917f63cc13d9bc835 Mon Sep 17 00:00:00 2001
From: Vitaly Baranov <vitbar@yandex-team.ru>
Date: Mon, 12 Jul 2021 23:15:58 +0300
Subject: [PATCH] Fix ciphering of partial blocks.

---
 src/Functions/FileEncryption.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/Functions/FileEncryption.h b/src/Functions/FileEncryption.h
index 864f8cf0866..3830e90bff5 100644
--- a/src/Functions/FileEncryption.h
+++ b/src/Functions/FileEncryption.h
@@ -151,7 +151,7 @@ public:
             throw DB::Exception("Expected key with size " + std::to_string(CipherKeyLength(evp_cipher)) + ", got iv with size " + std::to_string(key_.Size()),
                                 DB::ErrorCodes::DATA_ENCRYPTION_ERROR);
 
-        offset = BlockOffset(offset_);
+        offset = offset_;
     }
 
 protected:
@@ -202,7 +202,6 @@ public:
             buf.write(EncryptPartialBlock(plaintext, part_size, iv, off).data(), part_size);
             offset += part_size;
             size -= part_size;
-            plaintext += part_size;
             iv.Inc();
         }