icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len > Class Template Reference

#include <Sha2Impl.h>

Public Member Functions
void	clear ()
	Clears the internal state. A new hash can then be calculated. More...
::icl_core::String	getHexDigest () const
	Returns the message digest as a hex string. More...
	Sha2Impl ()
	Initializes the internal state. More...

Static Public Attributes
static const size_t	cMESSAGE_BLOCK_SIZE = 128
	The message block size in bytes. More...
static const size_t	cMESSAGE_PAD_POSITION = 112

Protected Member Functions
void	finalizeBuffer (size_t size)
void	processBuffer ()

Protected Attributes
uint8_t	m_buffer [cMESSAGE_BLOCK_SIZE]
size_t	m_buffer_fill
	The amount of bytes currently stored in the internal buffer. More...
uint64_t	m_digest [8]
	The whole message digest. More...
uint64_t	m_message_size
	The size of the message so far, in bytes. More...

Detailed Description

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>
class icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >

Template specialization for SHA-2 implementation internals for 64-bit word size.

Template Parameters

t_h0	The initial hash value, word 0.
t_h1	The initial hash value, word 1.
t_h2	The initial hash value, word 2.
t_h3	The initial hash value, word 3.
t_h4	The initial hash value, word 4.
t_h5	The initial hash value, word 5.
t_h6	The initial hash value, word 6.
t_h7	The initial hash value, word 7.
t_len	The length, in words, of the message digest. This may be at most 8 (i.e., all eight words of the digest are used). Only the first t_len words of the digest are returned otherwise.

Definition at line 105 of file Sha2Impl.h.

Constructor & Destructor Documentation

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::Sha2Impl

(

)

Initializes the internal state.

Member Function Documentation

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

void icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::clear

(

)

Clears the internal state. A new hash can then be calculated.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

void icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::finalizeBuffer ( size_t  size )

protected

Processes the first size bytes of the current buffer contents and finalizes the digest.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

::icl_core::String icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::getHexDigest

(

)

const

Returns the message digest as a hex string.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

void icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::processBuffer ( )

protected

Processes the current buffer contents and adds them to the message digest.

Member Data Documentation

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

const size_t icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::cMESSAGE_BLOCK_SIZE = 128

static

The message block size in bytes.

Definition at line 109 of file Sha2Impl.h.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

const size_t icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::cMESSAGE_PAD_POSITION = 112

static

The position up to which the last block is padded (the remaining bytes hold the message length).

Definition at line 113 of file Sha2Impl.h.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

uint8_t icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::m_buffer[cMESSAGE_BLOCK_SIZE]

protected

The internal message buffer. Stores the data for one message block.

Definition at line 142 of file Sha2Impl.h.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

size_t icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::m_buffer_fill

protected

The amount of bytes currently stored in the internal buffer.

Definition at line 144 of file Sha2Impl.h.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

uint64_t icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::m_digest[8]

protected

The whole message digest.

Definition at line 136 of file Sha2Impl.h.

template<uint64_t t_h0, uint64_t t_h1, uint64_t t_h2, uint64_t t_h3, uint64_t t_h4, uint64_t t_h5, uint64_t t_h6, uint64_t t_h7, size_t t_len>

uint64_t icl_core::crypt::Sha2Impl< uint64_t, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len >::m_message_size

protected

The size of the message so far, in bytes.

Definition at line 138 of file Sha2Impl.h.

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

• Sha2Impl.h