diff options
| author | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-04-21 14:14:52 +0000 |
|---|---|---|
| committer | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-04-21 14:14:52 +0000 |
| commit | cb4a46e7fbe62d788e66ed6121c717a2d22a4d7c (patch) | |
| tree | 30df260fdc5a1b5a7049c2f8cac8b7ef17513d6d /cryptopp/crypto/cbcmac.cpp | |
| parent | 19b6f534d2e784a1e120bf52c4aa07004798f473 (diff) | |
svn.miranda.im is moving to a new home!
git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@7 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb
Diffstat (limited to 'cryptopp/crypto/cbcmac.cpp')
| -rw-r--r-- | cryptopp/crypto/cbcmac.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/cryptopp/crypto/cbcmac.cpp b/cryptopp/crypto/cbcmac.cpp new file mode 100644 index 0000000..322a4c3 --- /dev/null +++ b/cryptopp/crypto/cbcmac.cpp @@ -0,0 +1,63 @@ +#include "pch.h"
+
+#ifndef CRYPTOPP_IMPORTS
+
+#include "cbcmac.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+void CBC_MAC_Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms)
+{
+ AccessCipher().SetKey(key, length, params);
+ m_reg.CleanNew(AccessCipher().BlockSize());
+ m_counter = 0;
+}
+
+void CBC_MAC_Base::Update(const byte *input, size_t length)
+{
+ unsigned int blockSize = AccessCipher().BlockSize();
+
+ while (m_counter && length)
+ {
+ m_reg[m_counter++] ^= *input++;
+ if (m_counter == blockSize)
+ ProcessBuf();
+ length--;
+ }
+
+ while (length >= blockSize)
+ {
+ xorbuf(m_reg, input, blockSize);
+ ProcessBuf();
+ input += blockSize;
+ length -= blockSize;
+ }
+
+ while (length--)
+ {
+ m_reg[m_counter++] ^= *input++;
+ if (m_counter == blockSize)
+ ProcessBuf();
+ }
+}
+
+void CBC_MAC_Base::TruncatedFinal(byte *mac, size_t size)
+{
+ ThrowIfInvalidTruncatedSize(size);
+
+ if (m_counter)
+ ProcessBuf();
+
+ memcpy(mac, m_reg, size);
+ memset(m_reg, 0, AccessCipher().BlockSize());
+}
+
+void CBC_MAC_Base::ProcessBuf()
+{
+ AccessCipher().ProcessBlock(m_reg);
+ m_counter = 0;
+}
+
+NAMESPACE_END
+
+#endif
|