anch::crypto::Hash< O, B > Class Template Reference

Hash algorithm abstract class. More...

#include <hash.hpp>

Inheritance diagram for anch::crypto::Hash< O, B >:

Collaboration diagram for anch::crypto::Hash< O, B >:

Public Member Functions
virtual const std::array< uint8_t, O > &	digest () const =0
const std::array< uint8_t, O > &	digest (const std::string &data)
template<std::size_t N>
const std::array< uint8_t, O > &	digest (const std::array< uint8_t, N > &data)
const std::array< uint8_t, O > &	digest (const uint8_t *data, std::size_t len)
const std::array< uint8_t, O > &	digest (std::istream &stream)

Static Public Member Functions
static constexpr std::size_t	getOutputSize ()
static constexpr std::size_t	getBlockSize ()

Protected Member Functions
virtual void	reset ()=0
virtual void	addData (const uint8_t *data, std::size_t len)=0
virtual void	finalize ()=0

Protected Attributes
std::array< uint8_t, O > *	_digest

Detailed Description

template<std::size_t O, std::size_t B>
class anch::crypto::Hash< O, B >

Hash algorithm abstract class.

N is the hash output size in bytes.
B is the hash block size in bytes (used in HMAC algorithm).

Author

Vincent Lachenal

Member Function Documentation

addData()

template<std::size_t O, std::size_t B>

virtual void anch::crypto::Hash< O, B >::addData ( const uint8_t * data, std::size_t len )

protectedpure virtual

Compute hash for data with the current hash

Parameters

data	The data to add
len	The data length

Implemented in anch::crypto::MD5, and anch::crypto::SHA1.

digest() [1/5]

template<std::size_t O, std::size_t B>

virtual const std::array< uint8_t, O > & anch::crypto::Hash< O, B >::digest ( ) const

pure virtual

Get the hash result

Returns

the hash result

Implemented in anch::crypto::MD5, anch::crypto::SHA1, and anch::crypto::SHA2< O, B, W, R, I >.

digest() [2/5]

template<std::size_t O, std::size_t B>

template<std::size_t N>

const std::array< uint8_t, O > & anch::crypto::Hash< O, B >::digest

(

const std::array< uint8_t, N > &

data

)

Reset current hash context and compute hash for string

Parameters

data	the string to hash

Returns

the hash result

digest() [3/5]

template<std::size_t O, std::size_t B>

template const std::array< uint8_t, 64 > & anch::crypto::Hash< O, B >::digest

(

const std::string &

data

)

Reset current hash context and compute hash for string

Parameters

data	the string to hash

Returns

the hash result

digest() [4/5]

template<std::size_t O, std::size_t B>

const std::array< uint8_t, O > & anch::crypto::Hash< O, B >::digest	(	const uint8_t *	data,
		std::size_t	len )

Reset current hash context and compute hash for string

Parameters

data	the string to hash
len	the data length

Returns

the hash result

digest() [5/5]

template<std::size_t O, std::size_t B>

template const std::array< uint8_t, 64 > & anch::crypto::Hash< O, B >::digest

(

std::istream &

stream

)

Reset current hash context and compute hash for stream

Parameters

stream

the stream to hash

Returns

the hash result

finalize()

template<std::size_t O, std::size_t B>

virtual void anch::crypto::Hash< O, B >::finalize ( )

protectedpure virtual

Reset hash context

Implemented in anch::crypto::MD5, and anch::crypto::SHA1.

getBlockSize()

template<std::size_t O, std::size_t B>

static constexpr std::size_t anch::crypto::Hash< O, B >::getBlockSize ( )

inlinestaticconstexpr

Hash block size getter

Returns

the block size

getOutputSize()

template<std::size_t O, std::size_t B>

static constexpr std::size_t anch::crypto::Hash< O, B >::getOutputSize ( )

inlinestaticconstexpr

Hash output size getter

Returns

the output size

reset()

template<std::size_t O, std::size_t B>

virtual void anch::crypto::Hash< O, B >::reset ( )

protectedpure virtual

Reset hash context

Implemented in anch::crypto::MD5, and anch::crypto::SHA1.

Member Data Documentation

_digest

template<std::size_t O, std::size_t B>

std::array<uint8_t,O>* anch::crypto::Hash< O, B >::_digest

protected

Digest

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

• anch-crypto/inc/crypto/hash/hash.hpp
• anch-crypto/inc/crypto/hash/sha224.hpp
• anch-crypto/inc/crypto/hash/sha256.hpp
• anch-crypto/inc/crypto/hash/sha384.hpp
• anch-crypto/inc/crypto/hash/sha512.hpp