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author | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:21:13 +0100 |
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committer | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:21:13 +0100 |
commit | 3438e5d3ddf8444f0e31009ffbe8237ef3752c22 (patch) | |
tree | 7c2f76d5e9281c130e60fb932c4dda89a49863b6 /CryptoPP/eax.cpp | |
parent | Moved source to src (diff) | |
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Diffstat (limited to 'CryptoPP/eax.cpp')
-rw-r--r-- | CryptoPP/eax.cpp | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/CryptoPP/eax.cpp b/CryptoPP/eax.cpp deleted file mode 100644 index 2728c9bcd..000000000 --- a/CryptoPP/eax.cpp +++ /dev/null @@ -1,59 +0,0 @@ -// 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 |