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check # of block to encrypt/decrypt for zero

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orignal
2015-03-30 11:56:24 -04:00
parent 12641ab0c0
commit 00ac1f7ec9
1 changed files with 6 additions and 2 deletions
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8
aes.cpp
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@@ -192,7 +192,9 @@ namespace crypto
void CBCEncryption::Encrypt (const uint8_t * in, std::size_t len, uint8_t * out) void CBCEncryption::Encrypt (const uint8_t * in, std::size_t len, uint8_t * out)
{ {
// len/16 // len/16
Encrypt (len >> 4, (const ChipherBlock *)in, (ChipherBlock *)out); int numBlocks = len >> 4;
if (numBlocks > 0)
Encrypt (numBlocks, (const ChipherBlock *)in, (ChipherBlock *)out);
} }
void CBCEncryption::Encrypt (const uint8_t * in, uint8_t * out) void CBCEncryption::Encrypt (const uint8_t * in, uint8_t * out)
@@ -252,7 +254,9 @@ namespace crypto
void CBCDecryption::Decrypt (const uint8_t * in, std::size_t len, uint8_t * out) void CBCDecryption::Decrypt (const uint8_t * in, std::size_t len, uint8_t * out)
{ {
Decrypt (len >> 4, (const ChipherBlock *)in, (ChipherBlock *)out); int numBlocks = len >> 4;
if (numBlocks > 0)
Decrypt (numBlocks, (const ChipherBlock *)in, (ChipherBlock *)out);
} }
void CBCDecryption::Decrypt (const uint8_t * in, uint8_t * out) void CBCDecryption::Decrypt (const uint8_t * in, uint8_t * out)