VMAC message authentication code. More...
#include <vmac.h>
Inheritance diagram for VMAC< T_BlockCipher, T_DigestBitSize >:
Static Public Member Functions | |
| static std::string | StaticAlgorithmName () |
Additional Inherited Members | |
 Public Types inherited from IteratedHashBase< word64, MessageAuthenticationCode > | |
| typedef word64 | HashWordType |
| Public Types inherited from SimpleKeyingInterface | |
| enum | IV_Requirement { UNIQUE_IV = 0 , RANDOM_IV , UNPREDICTABLE_RANDOM_IV , INTERNALLY_GENERATED_IV , NOT_RESYNCHRONIZABLE } |
| Secure IVs requirements as enumerated values. More... | |
| Public Member Functions inherited from SimpleKeyingInterfaceImpl< VMAC_Base, SameKeyLengthAs< T_BlockCipher, SimpleKeyingInterface::UNIQUE_IV, T_BlockCipher::BLOCKSIZE > > | |
| size_t | MinKeyLength () const |
| The minimum key length used by the algorithm. | |
| size_t | MaxKeyLength () const |
| The maximum key length used by the algorithm. | |
| size_t | DefaultKeyLength () const |
| The default key length used by the algorithm. | |
| size_t | GetValidKeyLength (size_t keylength) const |
| Provides a valid key length for the algorithm. | |
| SimpleKeyingInterface::IV_Requirement | IVRequirement () const |
| The default IV requirements for the algorithm. | |
| unsigned int | IVSize () const |
| The initialization vector length for the algorithm. | |
| Public Member Functions inherited from VMAC_Base | |
| std::string | AlgorithmName () const |
| Provides the name of this algorithm. | |
| std::string | AlgorithmProvider () const |
| Retrieve the provider of this algorithm. | |
| unsigned int | IVSize () const |
| Returns length of the IV accepted by this object. | |
| unsigned int | MinIVLength () const |
| Provides the minimum size of an IV. | |
| void | Resynchronize (const byte *nonce, int length=-1) |
| Resynchronize with an IV. | |
| void | GetNextIV (RandomNumberGenerator &rng, byte *IV) |
| Retrieves a secure IV for the next message. | |
| unsigned int | DigestSize () const |
| void | UncheckedSetKey (const byte *userKey, unsigned int keylength, const NameValuePairs ¶ms) |
| Sets the key for this object without performing parameter validation. | |
| void | TruncatedFinal (byte *mac, size_t size) |
| Computes the hash of the current message. | |
| unsigned int | BlockSize () const |
| Provides the block size of the compression function. | |
| ByteOrder | GetByteOrder () const |
| unsigned int | OptimalDataAlignment () const |
| Provides input and output data alignment for optimal performance. | |
| Public Member Functions inherited from IteratedHashBase< word64, MessageAuthenticationCode > | |
| IteratedHashBase () | |
| Construct an IteratedHashBase. | |
| unsigned int | OptimalBlockSize () const |
| Provides the input block size most efficient for this cipher. | |
| void | Update (const byte *input, size_t length) |
| Updates a hash with additional input. | |
| byte * | CreateUpdateSpace (size_t &size) |
| Requests space which can be written into by the caller. | |
| void | Restart () |
| Restart the hash. | |
| Public Member Functions inherited from SimpleKeyingInterface | |
| virtual bool | IsValidKeyLength (size_t keylength) const |
| Returns whether keylength is a valid key length. | |
| virtual void | SetKey (const byte *key, size_t length, const NameValuePairs ¶ms=g_nullNameValuePairs) |
| Sets or reset the key of this object. | |
| void | SetKeyWithRounds (const byte *key, size_t length, int rounds) |
| Sets or reset the key of this object. | |
| void | SetKeyWithIV (const byte *key, size_t length, const byte *iv, size_t ivLength) |
| Sets or reset the key of this object. | |
| void | SetKeyWithIV (const byte *key, size_t length, const byte *iv) |
| Sets or reset the key of this object. | |
| bool | IsResynchronizable () const |
| Determines if the object can be resynchronized. | |
| bool | CanUseRandomIVs () const |
| Determines if the object can use random IVs. | |
| bool | CanUsePredictableIVs () const |
| Determines if the object can use random but possibly predictable IVs. | |
| bool | CanUseStructuredIVs () const |
| Determines if the object can use structured IVs. | |
| unsigned int | DefaultIVLength () const |
| Provides the default size of an IV. | |
| virtual unsigned int | MaxIVLength () const |
| Provides the maximum size of an IV. | |
| Public Member Functions inherited from HashTransformation | |
| HashTransformation & | Ref () |
| Provides a reference to this object. | |
| virtual void | Final (byte *digest) |
| Computes the hash of the current message. | |
| unsigned int | TagSize () const |
| 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. | |
| virtual bool | Verify (const byte *digest) |
| Verifies the hash of the current message. | |
| 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. | |
| 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. | |
| virtual bool | TruncatedVerify (const byte *digest, size_t digestLength) |
| Verifies the hash of the current message. | |
| 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. | |
| Public Member Functions inherited from Algorithm | |
| Algorithm (bool checkSelfTestStatus=true) | |
| Interface for all crypto algorithms. | |
| Public Member Functions inherited from Clonable | |
| virtual Clonable * | Clone () const |
| Copies this object. | |
| Protected Member Functions inherited from VMAC_Base | |
| const BlockCipher & | GetCipher () const |
| void | HashEndianCorrectedBlock (const word64 *data) |
| size_t | HashMultipleBlocks (const word64 *input, size_t length) |
| void | Init () |
| word64 * | StateBuf () |
| word64 * | DataBuf () |
| void | VHASH_Update_SSE2 (const word64 *data, size_t blocksRemainingInWord64, int tagPart) |
| template<bool T_128BitTag> | |
| void | VHASH_Update_Template (const word64 *data, size_t blockRemainingInWord128) |
| void | VHASH_Update (const word64 *data, size_t blocksRemainingInWord128) |
| Protected Member Functions inherited from IteratedHashBase< word64, MessageAuthenticationCode > | |
| word64 | GetBitCountHi () const |
| word64 | GetBitCountLo () const |
| void | PadLastBlock (unsigned int lastBlockSize, byte padFirst=0x80) |
| virtual size_t | HashMultipleBlocks (const word64 *input, size_t length) |
| void | HashBlock (const HashWordType *input) |
| Protected Member Functions inherited from MessageAuthenticationCode | |
| Protected Member Functions inherited from SimpleKeyingInterface | |
| void | ThrowIfInvalidKeyLength (size_t length) |
| Validates the key length. | |
| void | ThrowIfResynchronizable () |
| Validates the object. | |
| void | ThrowIfInvalidIV (const byte *iv) |
| Validates the IV. | |
| size_t | ThrowIfInvalidIVLength (int length) |
| Validates the IV length. | |
| const byte * | GetIVAndThrowIfInvalid (const NameValuePairs ¶ms, size_t &size) |
| Retrieves and validates the IV. | |
| void | AssertValidKeyLength (size_t length) const |
| Validates the key length. | |
| Protected Member Functions inherited from HashTransformation | |
| void | ThrowIfInvalidTruncatedSize (size_t size) const |
| Validates a truncated digest size. | |
| Protected Attributes inherited from VMAC_Base | |
| bool | m_is128 |
| bool | m_padCached |
| bool | m_isFirstBlock |
| unsigned int | m_L1KeyLength |
Detailed Description
template<class T_BlockCipher, int T_DigestBitSize = 128>
class VMAC< T_BlockCipher, T_DigestBitSize >
class VMAC< T_BlockCipher, T_DigestBitSize >
VMAC message authentication code.
- Template Parameters
-
T_BlockCipher block cipher T_DigestBitSize digest size, in bits
VMAC is a block cipher-based message authentication code algorithm using a universal hash proposed by Ted Krovetz and Wei Dai in April 2007. The algorithm was designed for high performance backed by a formal analysis.
The implementation is based on Ted Krovetz's public domain vmac.c and draft-krovetz-vmac-01.txt.
- See also
- VMAC.
- Since
- Crypto++ 5.5
Member Function Documentation
◆ StaticAlgorithmName()
template<class T_BlockCipher , int T_DigestBitSize = 128>
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inlinestatic |
The documentation for this class was generated from the following file:
- G:/work/subversion/scol-technologies/trunk/scol/plugins/security/cryptopp/vmac.h
