Crypto++
8.6
Free C++ class library of cryptographic schemes
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6 #ifndef CRYPTOPP_HMAC_H
7 #define CRYPTOPP_HMAC_H
24 void UncheckedSetKey(
const byte *userKey,
unsigned int keylength,
const NameValuePairs ¶ms);
27 void Update(
const byte *input,
size_t length);
28 void TruncatedFinal(
byte *mac,
size_t size);
34 byte * AccessIpad() {
return m_buf;}
35 byte * AccessOpad() {
return m_buf + AccessHash().
BlockSize();}
36 byte * AccessInnerHash() {
return m_buf + 2*AccessHash().BlockSize();}
42 bool m_innerHashKeyed;
55 CRYPTOPP_CONSTANT(DIGESTSIZE=T::DIGESTSIZE);
56 CRYPTOPP_CONSTANT(BLOCKSIZE=T::BLOCKSIZE);
66 {this->
SetKey(key, length);}
68 static std::string StaticAlgorithmName() {
return std::string(
"HMAC(") + T::StaticAlgorithmName() +
")";}
69 std::string
AlgorithmName()
const {
return std::string(
"HMAC(") + m_hash.AlgorithmName() +
")";}
virtual void SetKey(const byte *key, size_t length, const NameValuePairs ¶ms=g_nullNameValuePairs)
Sets or reset the key of this object.
HMAC_Base()
Construct a HMAC_Base.
std::string AlgorithmName() const
Provides the name of this algorithm.
Classes and functions for secure memory allocations.
std::string AlgorithmProvider() const
Retrieve the provider of this algorithm.
Classes and functions for implementing secret key algorithms.
unsigned int DigestSize() const
Provides the digest size of the hash.
Provides a base implementation of Algorithm and SimpleKeyingInterface for message authentication code...
Crypto++ library namespace.
static const int DEFAULT_KEYLENGTH
The default key length used by the algorithm provided as a constant.
unsigned int OptimalBlockSize() const
Provides the input block size most efficient for this hash.
Interface for message authentication codes.
HMAC(const byte *key, size_t length=HMAC_Base::DEFAULT_KEYLENGTH)
Construct a HMAC.
Interface for retrieving values given their names.
Inherited by keyed algorithms with variable key length.