#include <md5mac.h>
Inheritance diagram for MD5MAC:
Definition at line 34 of file md5mac.h.
Public Types | |
enum | |
typedef LittleEndian | ByteOrderClass |
typedef word32 | HashWordType |
enum | IV_Requirement { STRUCTURED_IV = 0, RANDOM_IV, UNPREDICTABLE_RANDOM_IV, INTERNALLY_GENERATED_IV, NOT_RESYNCHRONIZABLE } |
Public Member Functions | |
Clonable * | Clone () const |
this is not implemented by most classes yet | |
void | SetKey (const byte *key, size_t length, const NameValuePairs ¶ms=g_nullNameValuePairs) |
set or reset the key of this object | |
std::string | AlgorithmName () const |
returns name of this algorithm, not universally implemented yet | |
size_t | MinKeyLength () const |
returns smallest valid key length in bytes */ | |
size_t | MaxKeyLength () const |
returns largest valid key length in bytes */ | |
size_t | DefaultKeyLength () const |
returns default (recommended) key length in bytes */ | |
size_t | GetValidKeyLength (size_t n) const |
returns the smallest valid key length in bytes that is >= min(n, GetMaxKeyLength()) | |
MD5MAC_Base::IV_Requirement | IVRequirement () const |
returns the minimal requirement for secure IVs | |
ByteOrder | GetByteOrder () const |
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, size_t length) |
process more input | |
byte * | CreateUpdateSpace (size_t &size) |
request space to write input into | |
void | Restart () |
discard the current state, and restart with a new message | |
void | TruncatedFinal (byte *digest, size_t size) |
truncated version of Final() | |
virtual void | Final (byte *digest) |
compute hash for current message, then restart for a new message | |
virtual unsigned int | DigestSize () const =0 |
size of the hash returned by Final() | |
virtual void | CalculateDigest (byte *digest, const byte *input, size_t 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, size_t 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, size_t digestSize, const byte *input, size_t length) |
truncated version of CalculateDigest() | |
virtual bool | TruncatedVerify (const byte *digest, size_t digestLength) |
truncated version of Verify() | |
virtual bool | VerifyTruncatedDigest (const byte *digest, size_t digestLength, const byte *input, size_t length) |
truncated version of VerifyDigest() | |
virtual bool | IsValidKeyLength (size_t n) const |
returns whether n is a valid key length | |
void | SetKeyWithRounds (const byte *key, size_t length, int rounds) |
calls SetKey() with an NameValuePairs object that just specifies "Rounds" | |
void | SetKeyWithIV (const byte *key, size_t length, const byte *iv) |
calls SetKey() with an NameValuePairs object that just specifies "IV" | |
bool | IsResynchronizable () const |
returns whether this object can be resynchronized (i.e. supports initialization vectors) | |
bool | CanUseRandomIVs () const |
returns whether this object can use random IVs (in addition to ones returned by GetNextIV) | |
bool | CanUsePredictableIVs () const |
returns whether this object can use random but possibly predictable IVs (in addition to ones returned by GetNextIV) | |
bool | CanUseStructuredIVs () const |
returns whether this object can use structured IVs, for example a counter (in addition to ones returned by GetNextIV) | |
virtual unsigned int | IVSize () const |
returns size of IVs used by this object | |
virtual void | Resynchronize (const byte *IV) |
resynchronize with an IV | |
virtual void | GetNextIV (byte *IV) |
get a secure IV for the next message | |
Static Public Member Functions | |
std::string __cdecl | StaticAlgorithmName () |
size_t __cdecl | StaticGetValidKeyLength (size_t) |
void | CorrectEndianess (HashWordType *out, const HashWordType *in, size_t byteCount) |
Static Public Attributes | |
CompileAssert<((BLOCKSIZE &(BLOCKSIZE-1))==0) | cryptopp_assert___LINE__ ) |
Protected Member Functions | |
void | AssertValidKeyLength (size_t length) |
void | AssertValidKeyLength (size_t length) const |
void | SetBlockSize (unsigned int blockSize) |
void | SetStateSize (unsigned int stateSize) |
word32 | GetBitCountHi () const |
word32 | GetBitCountLo () const |
void | PadLastBlock (unsigned int lastBlockSize, byte padFirst=0x80) |
virtual void | Init ()=0 |
virtual void | HashEndianCorrectedBlock (const HashWordType *data)=0 |
virtual size_t | HashMultipleBlocks (const word32 *input, size_t length) |
void | HashBlock (const HashWordType *input) |
void | ThrowIfInvalidTruncatedSize (size_t size) const |
void | ThrowIfInvalidKeyLength (const Algorithm &algorithm, size_t length) |
void | ThrowIfResynchronizable () |
void | ThrowIfInvalidIV (const byte *iv) |
const byte * | GetIVAndThrowIfInvalid (const NameValuePairs ¶ms) |
Protected Attributes | |
SecBlock< word32 > | m_data |
SecBlock< word32 > | m_digest |
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Implements SimpleKeyingInterface. |
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compute hash for current message, then restart for a new message
Definition at line 534 of file cryptlib.h. Referenced by PKCS5_PBKDF2_HMAC< T >::DeriveKey(), and HMAC_Base::TruncatedFinal(). |
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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 560 of file cryptlib.h. |
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returns whether this object can be resynchronized (i.e. supports initialization vectors) If this function returns true, and no IV is passed to SetKey() and CanUseStructuredIVs()==true, an IV of all 0's will be assumed. Definition at line 384 of file cryptlib.h. References SimpleKeyingInterface::IVRequirement(). |
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get a secure IV for the next message This method should be called after you finish encrypting one message and are ready to start the next one. After calling it, you must call SetKey() or Resynchronize() before using this object again. This method is not implemented on decryption objects. Definition at line 400 of file cryptlib.h. |