tenduke::crypto::MessageDigest Class Reference

#include <MessageDigest.h>

Detailed Description

Simple MessageDigest-service: E.g.

a cryptographic hash function, MAC, or message signature.

Instances are not thread-safe.

Construction may throw tenduke::crypto::CryptoException.

Inheritance diagram for tenduke::crypto::MessageDigest:

Public Member Functions
virtual std::size_t	length () const =0
	Returns length (in bytes) of the resulting digest.
virtual MessageDigest *	update (const unsigned char *message, std::size_t messageLength)=0
	Updates the digest.
virtual void	digestTo (unsigned char *messageDigest)=0
	Computes the digest to pre-allocated buffer.
virtual std::unique_ptr< tenduke::utl::BinaryData >	digest ()=0
	Computes the digest.

Member Function Documentation

digest()

virtual std::unique_ptr< tenduke::utl::BinaryData > tenduke::crypto::MessageDigest::digest ( )

pure virtual

Computes the digest.

Returns

data-object containing the digest

Exceptions

tenduke::crypto::CryptoException

on error

Implemented in LibcryptoHash, tenduke::crypto::libcrypto::LibcryptoHash, tenduke::crypto::win::cng::WinCNGHash, and WinCNGHash.

digestTo()

virtual void tenduke::crypto::MessageDigest::digestTo ( unsigned char * messageDigest )

pure virtual

Computes the digest to pre-allocated buffer.

Parameters

messageDigest

the computed digest is placed here (needs to proper size, use MessageDigest::length()).

Exceptions

tenduke::crypto::CryptoException

on error

Implemented in LibcryptoHash, tenduke::crypto::libcrypto::LibcryptoHash, tenduke::crypto::win::cng::WinCNGHash, and WinCNGHash.

length()

virtual std::size_t tenduke::crypto::MessageDigest::length ( ) const

pure virtual

Returns length (in bytes) of the resulting digest.

Returns

-

Implemented in LibcryptoHash, tenduke::crypto::libcrypto::LibcryptoHash, tenduke::crypto::win::cng::WinCNGHash, and WinCNGHash.

update()

virtual MessageDigest * tenduke::crypto::MessageDigest::update ( const unsigned char * message, std::size_t messageLength )

pure virtual

Updates the digest.

Parameters

message	-
messageLength	-

Returns

this instance for chaining

Exceptions

tenduke::crypto::CryptoException

on error

Implemented in LibcryptoHash, tenduke::crypto::libcrypto::LibcryptoHash, tenduke::crypto::win::cng::WinCNGHash, and WinCNGHash.

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The documentation for this class was generated from the following file:

• core/core/src/crypto/msgauthn/MessageDigest.h