6 #ifndef CRYPTOPP_HMAC_H
7 #define CRYPTOPP_HMAC_H
12 NAMESPACE_BEGIN(CryptoPP)
22 void UncheckedSetKey(
const byte *userKey,
unsigned int keylength,
const NameValuePairs ¶ms);
25 void Update(
const byte *input,
size_t length);
26 void TruncatedFinal(byte *mac,
size_t size);
32 byte * AccessIpad() {
return m_buf;}
33 byte * AccessOpad() {
return m_buf + AccessHash().
BlockSize();}
34 byte * AccessInnerHash() {
return m_buf + 2*AccessHash().BlockSize();}
40 bool m_innerHashKeyed;
53 CRYPTOPP_CONSTANT(DIGESTSIZE=T::DIGESTSIZE)
54 CRYPTOPP_CONSTANT(BLOCKSIZE=T::BLOCKSIZE)
62 {this->
SetKey(key, length);}
64 static std::string StaticAlgorithmName() {
return std::string(
"HMAC(") + T::StaticAlgorithmName() +
")";}
65 std::string
AlgorithmName()
const {
return std::string(
"HMAC(") + m_hash.AlgorithmName() +
")";}
Interface for message authentication codes.
HMAC_Base()
Construct a HMAC_Base.
virtual void SetKey(const byte *key, size_t length, const NameValuePairs ¶ms=g_nullNameValuePairs)
Sets or reset the key of this object.
SecBlock<byte> typedef.
Classes and functions for secure memory allocations.
unsigned int DigestSize() const
Provides the digest size of the hash.
Classes and functions for implementing secret key algorithms.
static const int DEFAULT_KEYLENGTH
The default key length used by the algorithm provided as a constant.
HMAC(const byte *key, size_t length=HMAC_Base::DEFAULT_KEYLENGTH)
Construct a HMAC.
Provides a base implementation of Algorithm and SimpleKeyingInterface for message authentication code...
Inherited by keyed algorithms with variable key length.
std::string AlgorithmName() const
Provides the name of this algorithm.
Interface for retrieving values given their names.
unsigned int OptimalBlockSize() const
Provides the input block size most efficient for this hash.