6NAMESPACE_BEGIN(CryptoPP)
8void EAX_Base::SetKeyWithoutResync(
const byte *userKey,
size_t keylength,
const NameValuePairs ¶ms)
10 AccessMAC().
SetKey(userKey, keylength, params);
14void EAX_Base::Resync(
const byte *iv,
size_t len)
17 unsigned int blockSize = mac.
TagSize();
19 memset(m_buffer, 0, blockSize);
20 mac.
Update(m_buffer, blockSize);
23 m_buffer[blockSize-1] = 1;
24 mac.
Update(m_buffer, blockSize);
26 m_ctr.
SetCipherWithIV(AccessMAC().AccessCipher(), m_buffer+blockSize, blockSize);
29size_t EAX_Base::AuthenticateBlocks(
const byte *data,
size_t len)
31 AccessMAC().
Update(data, len);
35void EAX_Base::AuthenticateLastHeaderBlock()
37 CRYPTOPP_ASSERT(m_bufferedDataLength == 0);
39 const unsigned int blockSize = mac.
TagSize();
42 xorbuf(m_buffer+blockSize, m_buffer, blockSize);
44 memset(m_buffer, 0, blockSize);
45 m_buffer[blockSize-1] = 2;
46 mac.
Update(m_buffer, blockSize);
49void EAX_Base::AuthenticateLastFooterBlock(
byte *tag,
size_t macSize)
51 CRYPTOPP_ASSERT(m_bufferedDataLength == 0);
53 unsigned int blockSize = mac.
TagSize();
56 xorbuf(tag, m_buffer, m_buffer+blockSize, macSize);
void Update(const byte *input, size_t length)
Updates a hash with additional input.
void SetCipherWithIV(BlockCipher &cipher, const byte *iv, int feedbackSize=0)
Set external block cipher and IV.
Interface for message authentication codes.
Interface for retrieving values given their names.
void New(size_type newSize)
Change size without preserving contents.
virtual void SetKey(const byte *key, size_t length, const NameValuePairs ¶ms=g_nullNameValuePairs)
Sets or reset the key of this object.
EAX block cipher mode of operation.