Crypto++
8.6
Free C++ class library of cryptographic schemes
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Public Member Functions | |
std::string | AlgorithmProvider () const |
Retrieve the provider of this algorithm. More... | |
void | TruncatedFinal (byte *digest, size_t digestSize) |
Computes the hash of the current message. More... | |
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unsigned int | DigestSize () const |
Provides the digest size of the hash. More... | |
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Clonable * | Clone () const |
Create a copy of this object. More... | |
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std::string | AlgorithmName () const |
The algorithm name. More... | |
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unsigned int | BlockSize () const |
Provides the block size of the hash. More... | |
ByteOrder | GetByteOrder () const |
Provides the byte order of the hash. More... | |
void | CorrectEndianess (HashWordType *out, const HashWordType *in, size_t byteCount) |
Adjusts the byte ordering of the hash. More... | |
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IteratedHashBase () | |
Construct an IteratedHashBase. | |
unsigned int | OptimalBlockSize () const |
Provides the input block size most efficient for this cipher. More... | |
unsigned int | OptimalDataAlignment () const |
Provides input and output data alignment for optimal performance. More... | |
void | Update (const byte *input, size_t length) |
Updates a hash with additional input. More... | |
byte * | CreateUpdateSpace (size_t &size) |
Requests space which can be written into by the caller. More... | |
void | Restart () |
Restart the hash. More... | |
void | TruncatedFinal (byte *digest, size_t digestSize) |
Computes the hash of the current message. More... | |
virtual std::string | AlgorithmProvider () const |
Retrieve the provider of this algorithm. More... | |
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HashTransformation & | Ref () |
Provides a reference to this object. More... | |
virtual void | Final (byte *digest) |
Computes the hash of the current message. More... | |
virtual unsigned int | DigestSize () const =0 |
Provides the digest size of the hash. More... | |
unsigned int | TagSize () const |
Provides the tag size of the hash. More... | |
virtual unsigned int | BlockSize () const |
Provides the block size of the compression function. More... | |
virtual unsigned int | OptimalBlockSize () const |
Provides the input block size most efficient for this hash. More... | |
virtual unsigned int | OptimalDataAlignment () const |
Provides input and output data alignment for optimal performance. More... | |
virtual void | CalculateDigest (byte *digest, const byte *input, size_t length) |
Updates the hash with additional input and computes the hash of the current message. More... | |
virtual bool | Verify (const byte *digest) |
Verifies the hash of the current message. More... | |
virtual bool | VerifyDigest (const byte *digest, const byte *input, size_t length) |
Updates the hash with additional input and verifies the hash of the current message. More... | |
virtual void | CalculateTruncatedDigest (byte *digest, size_t digestSize, const byte *input, size_t length) |
Updates the hash with additional input and computes the hash of the current message. More... | |
virtual bool | TruncatedVerify (const byte *digest, size_t digestLength) |
Verifies the hash of the current message. More... | |
virtual bool | VerifyTruncatedDigest (const byte *digest, size_t digestLength, const byte *input, size_t length) |
Updates the hash with additional input and verifies the hash of the current message. More... | |
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Algorithm (bool checkSelfTestStatus=true) | |
Interface for all crypto algorithms. More... | |
virtual std::string | AlgorithmName () const |
Provides the name of this algorithm. More... | |
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virtual Clonable * | Clone () const |
Copies this object. More... | |
Static Public Member Functions | |
static const char * | StaticAlgorithmName () |
static void | InitState (HashWordType *state) |
Initialize state array. More... | |
static void | Transform (word64 *digest, const word64 *data) |
Operate the hash. More... | |
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static std::string | StaticAlgorithmName () |
The algorithm name. More... | |
Additional Inherited Members | |
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typedef LittleEndian | ByteOrderClass |
typedef word64 | HashWordType |
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typedef word64 | HashWordType |
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static const int | DIGESTSIZE |
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static const int | BLOCKSIZE |
Tiger message digest.
Crypto++ provides the original Tiger hash that was submitted to the NESSIE project. The implementation is different from the revised Tiger2 hash.
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virtual |
Retrieve the provider of this algorithm.
The algorithm provider can be a name like "C++", "SSE", "NEON", "AESNI", "ARMv8" and "Power8". C++ is standard C++ code. Other labels, like SSE, usually indicate a specialized implementation using instructions from a higher instruction set architecture (ISA). Future labels may include external hardware like a hardware security module (HSM).
Generally speaking Wei Dai's original IA-32 ASM code falls under "SSE2". Labels like "SSSE3" and "SSE4.1" follow after Wei's code and use intrinsics instead of ASM.
Algorithms which combine different instructions or ISAs provide the dominant one. For example on x86 AES/GCM
returns "AESNI" rather than "CLMUL" or "AES+SSE4.1" or "AES+CLMUL" or "AES+SSE4.1+CLMUL".
Reimplemented from Algorithm.
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static |
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virtual |
Computes the hash of the current message.
digest | a pointer to the buffer to receive the hash |
digestSize | the size of the truncated digest, in bytes |
TruncatedFinal() calls Final() and then copies digestSize bytes to digest. The hash is restarted the hash for the next message.
Implements HashTransformation.