diff options
Diffstat (limited to 'CryptoPP/eax.cpp')
-rw-r--r-- | CryptoPP/eax.cpp | 118 |
1 files changed, 59 insertions, 59 deletions
diff --git a/CryptoPP/eax.cpp b/CryptoPP/eax.cpp index cf836632b..2728c9bcd 100644 --- a/CryptoPP/eax.cpp +++ b/CryptoPP/eax.cpp @@ -1,59 +1,59 @@ -// eax.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-#include "eax.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-void EAX_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs ¶ms)
-{
- AccessMAC().SetKey(userKey, keylength, params);
- m_buffer.New(2*AccessMAC().TagSize());
-}
-
-void EAX_Base::Resync(const byte *iv, size_t len)
-{
- MessageAuthenticationCode &mac = AccessMAC();
- unsigned int blockSize = mac.TagSize();
-
- memset(m_buffer, 0, blockSize);
- mac.Update(m_buffer, blockSize);
- mac.CalculateDigest(m_buffer+blockSize, iv, len);
-
- m_buffer[blockSize-1] = 1;
- mac.Update(m_buffer, blockSize);
-
- m_ctr.SetCipherWithIV(AccessMAC().AccessCipher(), m_buffer+blockSize, blockSize);
-}
-
-size_t EAX_Base::AuthenticateBlocks(const byte *data, size_t len)
-{
- AccessMAC().Update(data, len);
- return 0;
-}
-
-void EAX_Base::AuthenticateLastHeaderBlock()
-{
- assert(m_bufferedDataLength == 0);
- MessageAuthenticationCode &mac = AccessMAC();
- unsigned int blockSize = mac.TagSize();
-
- mac.Final(m_buffer);
- xorbuf(m_buffer+blockSize, m_buffer, blockSize);
-
- memset(m_buffer, 0, blockSize);
- m_buffer[blockSize-1] = 2;
- mac.Update(m_buffer, blockSize);
-}
-
-void EAX_Base::AuthenticateLastFooterBlock(byte *tag, size_t macSize)
-{
- assert(m_bufferedDataLength == 0);
- MessageAuthenticationCode &mac = AccessMAC();
- unsigned int blockSize = mac.TagSize();
-
- mac.TruncatedFinal(m_buffer, macSize);
- xorbuf(tag, m_buffer, m_buffer+blockSize, macSize);
-}
-
-NAMESPACE_END
+// eax.cpp - written and placed in the public domain by Wei Dai + +#include "pch.h" +#include "eax.h" + +NAMESPACE_BEGIN(CryptoPP) + +void EAX_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs ¶ms) +{ + AccessMAC().SetKey(userKey, keylength, params); + m_buffer.New(2*AccessMAC().TagSize()); +} + +void EAX_Base::Resync(const byte *iv, size_t len) +{ + MessageAuthenticationCode &mac = AccessMAC(); + unsigned int blockSize = mac.TagSize(); + + memset(m_buffer, 0, blockSize); + mac.Update(m_buffer, blockSize); + mac.CalculateDigest(m_buffer+blockSize, iv, len); + + m_buffer[blockSize-1] = 1; + mac.Update(m_buffer, blockSize); + + m_ctr.SetCipherWithIV(AccessMAC().AccessCipher(), m_buffer+blockSize, blockSize); +} + +size_t EAX_Base::AuthenticateBlocks(const byte *data, size_t len) +{ + AccessMAC().Update(data, len); + return 0; +} + +void EAX_Base::AuthenticateLastHeaderBlock() +{ + assert(m_bufferedDataLength == 0); + MessageAuthenticationCode &mac = AccessMAC(); + unsigned int blockSize = mac.TagSize(); + + mac.Final(m_buffer); + xorbuf(m_buffer+blockSize, m_buffer, blockSize); + + memset(m_buffer, 0, blockSize); + m_buffer[blockSize-1] = 2; + mac.Update(m_buffer, blockSize); +} + +void EAX_Base::AuthenticateLastFooterBlock(byte *tag, size_t macSize) +{ + assert(m_bufferedDataLength == 0); + MessageAuthenticationCode &mac = AccessMAC(); + unsigned int blockSize = mac.TagSize(); + + mac.TruncatedFinal(m_buffer, macSize); + xorbuf(tag, m_buffer, m_buffer+blockSize, macSize); +} + +NAMESPACE_END |