#include <sha.h>
Inheritance diagram for SHA256:
Definition at line 20 of file sha.h.
Public Types | |
typedef CompileAssert<((BLOCKSIZE &(BLOCKSIZE-1))==0)> | cryptopp_assert___LINE__ |
typedef BigEndian | ByteOrderClass |
typedef IteratedHashBase< word32, HashTransformation >::HashWordType | HashWordType |
Public Member Functions | |
unsigned int | DigestSize () const |
size of the hash returned by Final() | |
Clonable * | Clone () const |
this is not implemented by most classes yet | |
std::string | AlgorithmName () const |
returns name of this algorithm, not universally implemented yet | |
void | TruncatedFinal (byte *digest, unsigned int size) |
truncated version of Final() | |
unsigned int | BlockSize () const |
block size of underlying compression function, or 0 if not block based | |
unsigned int | OptimalBlockSize () const |
input to Update() should have length a multiple of this for optimal speed | |
unsigned int | OptimalDataAlignment () const |
returns how input should be aligned for optimal performance | |
void | Update (const byte *input, unsigned int length) |
process more input | |
byte * | CreateUpdateSpace (unsigned int &size) |
request space to write input into | |
void | Restart () |
discard the current state, and restart with a new message | |
virtual void | Final (byte *digest) |
compute hash for current message, then restart for a new message | |
virtual void | CalculateDigest (byte *digest, const byte *input, unsigned int length) |
use this if your input is in one piece and you don't want to call Update() and Final() separately | |
virtual bool | Verify (const byte *digest) |
verify that digest is a valid digest for the current message, then reinitialize the object | |
virtual bool | VerifyDigest (const byte *digest, const byte *input, unsigned int length) |
use this if your input is in one piece and you don't want to call Update() and Verify() separately | |
virtual void | CalculateTruncatedDigest (byte *digest, unsigned int digestSize, const byte *input, unsigned int length) |
truncated version of CalculateDigest() | |
virtual bool | TruncatedVerify (const byte *digest, unsigned int digestLength) |
truncated version of Verify() | |
virtual bool | VerifyTruncatedDigest (const byte *digest, unsigned int digestLength, const byte *input, unsigned int length) |
truncated version of VerifyDigest() | |
Static Public Member Functions | |
static void | InitState (HashWordType *state) |
static void | Transform (word32 *digest, const word32 *data) |
static const char * | StaticAlgorithmName () |
static void | CorrectEndianess (HashWordType *out, const HashWordType *in, unsigned int byteCount) |
Protected Member Functions | |
void | HashEndianCorrectedBlock (const word32 *data) |
virtual void | HashEndianCorrectedBlock (const HashWordType *data)=0 |
void | Init () |
void | HashBlock (const HashWordType *input) |
virtual void | HashBlock (const word32 *input)=0 |
void | SetBlockSize (unsigned int blockSize) |
void | SetStateSize (unsigned int stateSize) |
word32 | GetBitCountHi () const |
word32 | GetBitCountLo () const |
virtual unsigned int | HashMultipleBlocks (const word32 *input, unsigned int length) |
void | PadLastBlock (unsigned int lastBlockSize, byte padFirst=0x80) |
void | ThrowIfInvalidTruncatedSize (unsigned int size) const |
Protected Attributes | |
SecBlock< word32 > | m_data |
SecBlock< word32 > | m_digest |
Static Protected Attributes | |
static const word32 | K [64] |
|
compute hash for current message, then restart for a new message
Definition at line 532 of file cryptlib.h. Referenced by PSSR_MEM_Base::ComputeMessageRepresentative(), PKCS1v15_SignatureMessageEncodingMethod::ComputeMessageRepresentative(), EMSA5Pad< T >::ComputeMessageRepresentative(), PKCS5_PBKDF2_HMAC< T >::DeriveKey(), DefaultEncryptor::FirstPut(), HashFilter::Put2(), PSSR_MEM_Base::RecoverMessageFromRepresentative(), HMAC_Base::TruncatedFinal(), ZlibCompressor::WritePoststreamTail(), and Gzip::WritePoststreamTail(). |
|
verify that digest is a valid digest for the current message, then reinitialize the object Default implementation is to call Final() and do a bitwise comparison between its output and digest. Definition at line 558 of file cryptlib.h. Referenced by HashVerificationFilter::LastPut(), Gunzip::ProcessPoststreamTail(), and PSSR_MEM_Base::RecoverMessageFromRepresentative(). |
|
Initial value: { 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 } |