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Merge pull request #280 from DevJPM/Keccak-HMAC 

fixed Keccak and SHA3 to support HMAC
pull/291/head
Jeffrey Walton 2016-09-20 02:12:58 -04:00 committed by GitHub
parent 49d7187255 51466b5b24
commit de04771aa8
2 changed files with 43 additions and 0 deletions
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22
keccak.h
View File

@ -56,6 +56,8 @@ public:
void Restart();
void TruncatedFinal(byte *hash, size_t size);
//unsigned int BlockSize() const { return r(); } // that's the idea behind it
protected:
inline unsigned int r() const {return 200 - 2 * m_digestSize;}
@ -70,10 +72,15 @@ class Keccak_224 : public Keccak
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 28)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a Keccak-224 message digest
Keccak_224() : Keccak(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "Keccak-224";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
//! \class Keccak_256
@ -83,10 +90,15 @@ class Keccak_256 : public Keccak
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 32)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a Keccak-256 message digest
Keccak_256() : Keccak(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "Keccak-256";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
//! \class Keccak_384
@ -96,10 +108,15 @@ class Keccak_384 : public Keccak
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 48)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a Keccak-384 message digest
Keccak_384() : Keccak(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "Keccak-384";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
//! \class Keccak_512
@ -109,10 +126,15 @@ class Keccak_512 : public Keccak
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 64)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a Keccak-512 message digest
Keccak_512() : Keccak(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "Keccak-512";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
NAMESPACE_END

21
sha3.h
View File

@ -42,6 +42,7 @@ public:
void Restart();
void TruncatedFinal(byte *hash, size_t size);
// unsigned int BlockSize() const { return r(); } // that's the idea behind it
protected:
inline unsigned int r() const {return 200 - 2 * m_digestSize;}
@ -56,10 +57,15 @@ class SHA3_224 : public SHA3
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 28)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a SHA3-224 message digest
SHA3_224() : SHA3(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "SHA3-224";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
//! \class SHA3_256
@ -69,10 +75,15 @@ class SHA3_256 : public SHA3
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 32)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a SHA3-256 message digest
SHA3_256() : SHA3(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "SHA3-256";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
//! \class SHA3_384
@ -82,10 +93,15 @@ class SHA3_384 : public SHA3
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 48)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a SHA3-384 message digest
SHA3_384() : SHA3(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "SHA3-384";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
//! \class SHA3_512
@ -95,10 +111,15 @@ class SHA3_512 : public SHA3
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 64)
CRYPTOPP_CONSTANT(BLOCKSIZE = 200 - 2 * DIGESTSIZE)
//! \brief Construct a SHA3-512 message digest
SHA3_512() : SHA3(DIGESTSIZE) {}
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "SHA3-512";}
unsigned int BlockSize() const { return BLOCKSIZE; }
private:
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE < 200); // ensure there was no underflow in the math
CRYPTOPP_COMPILE_ASSERT(BLOCKSIZE > DIGESTSIZE); // this is a general expectation by HMAC
};
NAMESPACE_END