diff options
Diffstat (limited to 'src/libs/7zip/unix/CPP/7zip/Crypto/HmacSha1.cpp')
-rw-r--r-- | src/libs/7zip/unix/CPP/7zip/Crypto/HmacSha1.cpp | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Crypto/HmacSha1.cpp b/src/libs/7zip/unix/CPP/7zip/Crypto/HmacSha1.cpp deleted file mode 100644 index a66d62711..000000000 --- a/src/libs/7zip/unix/CPP/7zip/Crypto/HmacSha1.cpp +++ /dev/null @@ -1,109 +0,0 @@ -// HmacSha1.cpp - -#include "StdAfx.h" - -#include "HmacSha1.h" - -namespace NCrypto { -namespace NSha1 { - -void CHmac::SetKey(const Byte *key, size_t keySize) -{ - Byte keyTemp[kBlockSize]; - size_t i; - for (i = 0; i < kBlockSize; i++) - keyTemp[i] = 0; - if(keySize > kBlockSize) - { - _sha.Init(); - _sha.Update(key, keySize); - _sha.Final(keyTemp); - keySize = kDigestSize; - } - else - for (i = 0; i < keySize; i++) - keyTemp[i] = key[i]; - for (i = 0; i < kBlockSize; i++) - keyTemp[i] ^= 0x36; - _sha.Init(); - _sha.Update(keyTemp, kBlockSize); - for (i = 0; i < kBlockSize; i++) - keyTemp[i] ^= 0x36 ^ 0x5C; - _sha2.Init(); - _sha2.Update(keyTemp, kBlockSize); -} - -void CHmac::Final(Byte *mac, size_t macSize) -{ - Byte digest[kDigestSize]; - _sha.Final(digest); - _sha2.Update(digest, kDigestSize); - _sha2.Final(digest); - for(size_t i = 0; i < macSize; i++) - mac[i] = digest[i]; -} - - -void CHmac32::SetKey(const Byte *key, size_t keySize) -{ - UInt32 keyTemp[kBlockSizeInWords]; - size_t i; - for (i = 0; i < kBlockSizeInWords; i++) - keyTemp[i] = 0; - if(keySize > kBlockSize) - { - CContext sha; - sha.Init(); - sha.Update(key, keySize); - Byte digest[kDigestSize]; - sha.Final(digest); - - for (int i = 0 ; i < kDigestSizeInWords; i++) - keyTemp[i] = - ((UInt32)(digest[i * 4 + 0]) << 24) | - ((UInt32)(digest[i * 4 + 1]) << 16) | - ((UInt32)(digest[i * 4 + 2]) << 8) | - ((UInt32)(digest[i * 4 + 3])); - keySize = kDigestSizeInWords; - } - else - for (size_t i = 0; i < keySize; i++) - keyTemp[i / 4] |= (key[i] << (24 - 8 * (i & 3))); - for (i = 0; i < kBlockSizeInWords; i++) - keyTemp[i] ^= 0x36363636; - _sha.Init(); - _sha.Update(keyTemp, kBlockSizeInWords); - for (i = 0; i < kBlockSizeInWords; i++) - keyTemp[i] ^= 0x36363636 ^ 0x5C5C5C5C; - _sha2.Init(); - _sha2.Update(keyTemp, kBlockSizeInWords); -} - -void CHmac32::Final(UInt32 *mac, size_t macSize) -{ - UInt32 digest[kDigestSizeInWords]; - _sha.Final(digest); - _sha2.Update(digest, kDigestSizeInWords); - _sha2.Final(digest); - for(size_t i = 0; i < macSize; i++) - mac[i] = digest[i]; -} - -void CHmac32::GetLoopXorDigest(UInt32 *mac, UInt32 numIteration) -{ - UInt32 block[kBlockSizeInWords]; - UInt32 block2[kBlockSizeInWords]; - _sha.PrepareBlock(block, kDigestSizeInWords); - _sha2.PrepareBlock(block2, kDigestSizeInWords); - for(unsigned int s = 0; s < kDigestSizeInWords; s++) - block[s] = mac[s]; - for(UInt32 i = 0; i < numIteration; i++) - { - _sha.GetBlockDigest(block, block2); - _sha2.GetBlockDigest(block2, block); - for (unsigned int s = 0; s < kDigestSizeInWords; s++) - mac[s] ^= block[s]; - } -} - -}} |