6 #ifndef CRYPTOPP_VMAC_H
7 #define CRYPTOPP_VMAC_H
15 #if (defined(CRYPTOPP_LLVM_CLANG_VERSION) && (CRYPTOPP_LLVM_CLANG_VERSION < 30400)) || CRYPTOPP_BOOL_X32
16 # define CRYPTOPP_DISABLE_VMAC_ASM
19 NAMESPACE_BEGIN(CryptoPP)
27 unsigned int IVSize()
const {
return GetCipher().BlockSize();}
29 void Resynchronize(
const byte *nonce,
int length=-1);
31 unsigned int DigestSize()
const {
return m_is128 ? 16 : 8;};
32 void UncheckedSetKey(
const byte *userKey,
unsigned int keylength,
const NameValuePairs ¶ms);
33 void TruncatedFinal(byte *mac,
size_t size);
34 unsigned int BlockSize()
const {
return m_L1KeyLength;}
36 unsigned int OptimalDataAlignment()
const;
40 virtual int DefaultDigestSize()
const =0;
42 void HashEndianCorrectedBlock(
const word64 *data);
43 size_t HashMultipleBlocks(
const word64 *input,
size_t length);
45 word64* StateBuf() {
return NULL;}
46 word64* DataBuf() {
return (word64 *)(
void*)m_data();}
48 void VHASH_Update_SSE2(
const word64 *data,
size_t blocksRemainingInWord64,
int tagPart);
49 #if !(defined(_MSC_VER) && _MSC_VER < 1300) // can't use function template here with VC6
50 template <
bool T_128BitTag>
52 void VHASH_Update_Template(
const word64 *data,
size_t blockRemainingInWord128);
53 void VHASH_Update(
const word64 *data,
size_t blocksRemainingInWord128);
55 CRYPTOPP_BLOCK_1(polyState, word64, 4*(m_is128+1))
56 CRYPTOPP_BLOCK_2(nhKey, word64, m_L1KeyLength/sizeof(word64) + 2*m_is128)
57 CRYPTOPP_BLOCK_3(data, byte, m_L1KeyLength)
58 CRYPTOPP_BLOCK_4(l3Key, word64, 2*(m_is128+1))
59 CRYPTOPP_BLOCK_5(nonce, byte, IVSize())
60 CRYPTOPP_BLOCK_6(pad, byte, IVSize())
61 CRYPTOPP_BLOCKS_END(6)
63 bool m_is128, m_padCached, m_isFirstBlock;
64 unsigned int m_L1KeyLength;
77 template <class T_BlockCipher,
int T_DigestBitSize = 128>
81 static std::string StaticAlgorithmName() {
return std::string(
"VMAC(") + T_BlockCipher::StaticAlgorithmName() +
")-" +
IntToString(T_DigestBitSize);}
85 int DefaultDigestSize()
const {
return T_DigestBitSize/8;}
86 typename T_BlockCipher::Encryption m_cipher;
std::string AlgorithmName() const
Provides the name of this algorithm.
VMAC message authentication code.
const char * DigestSize()
int, in bytes
Interface for message authentication codes.
ByteOrder
Provides the byte ordering.
unsigned int DigestSize() const
Provides the digest size of the hash.
VMAC message authentication code base class.
Provides a base implementation of SimpleKeyingInterface.
Abstract base classes that provide a uniform interface to this library.
unsigned int BlockSize() const
Provides the block size of the compression function.
Interface for random number generators.
byte order is little-endian
Interface for one direction (encryption or decryption) of a block cipher.
Classes and functions for implementing secret key algorithms.
Interface for algorithms that take byte strings as keys.
Provides key lengths based on another class's key length.
const char * IV()
ConstByteArrayParameter, also accepts const byte * for backwards compatibility.
unsigned int MinIVLength() const
Provides the minimum size of an IV.
unsigned int IVSize() const
Returns length of the IV accepted by this object.
Iterated hash base class.
std::string IntToString(T value, unsigned int base=10)
Converts a value to a string.
Interface for retrieving values given their names.