Digest Class Reference

message digest. More...

#include <digest.h>

Public Types
enum class	Type {   Md5 , Sha1 , Sha224 , Sha256 ,   Sha384 , Sha512 }

Public Member Functions
	Digest (Type type)
	constructor. More...
void	reinit ()
	initialize or reinitialize the message digest functions. More...
void	update (const std::span< const uint8_t > &data)
	update Digest. More...
void	update (const std::string_view &data)
void	finalize (std::vector< uint8_t > &out)
	finalize the digest and get digest value. More...
void	finalize (std::string &out)
	finalize the digest and get digest value. More...

Static Public Member Functions
static size_t	digest_size (Type type)
	get size of the digest value. More...

Private Member Functions
template<typename Container >
void	finalize_impl (Container &out)

Static Private Member Functions
static const EVP_MD *	get_evp_md (Type type) noexcept

Private Attributes
Type	type_
std::unique_ptr< EVP_MD_CTX, decltype(&EVP_MD_CTX_destroy)>	ctx_

Detailed Description

message digest.

Wrapper around Digest functions of openssl (EVP_MD_...)

• MD5
• SHA1
• SHA224
• SHA256
• SHA384
• SHA512

See also

openssl's EVP_sha512()

Member Enumeration Documentation

Type

enum class Digest::Type

strong

Enumerator
Md5
Sha1
Sha224
Sha256
Sha384
Sha512

Constructor & Destructor Documentation

Digest()

Digest::Digest ( Type  type )

inline

constructor.

initializes the digest function.

Member Function Documentation

digest_size()

static size_t Digest::digest_size ( Type  type )

inlinestatic

get size of the digest value.

Parameters

type	type of message digest

Returns

size of message digest

finalize() [1/2]

void Digest::finalize ( std::string &  out )

inline

finalize the digest and get digest value.

Parameters

out	string to place the digest value in

finalize() [2/2]

void Digest::finalize ( std::vector< uint8_t > &  out )

inline

finalize the digest and get digest value.

Parameters

out	vector to place the digest value in

finalize_impl()

template<typename Container >

void Digest::finalize_impl ( Container &  out )

inlineprivate

get_evp_md()

static const EVP_MD * Digest::get_evp_md ( Type  type )

inlinestaticprivatenoexcept

reinit()

void Digest::reinit ( )

inline

initialize or reinitialize the message digest functions.

Allows reused of the Digest function without reallocating memory.

update() [1/2]

void Digest::update ( const std::span< const uint8_t > &  data )

inline

update Digest.

Parameters

data	data to update digest function with

update() [2/2]

void Digest::update ( const std::string_view &  data )

inline

Member Data Documentation

ctx_

std::unique_ptr<EVP_MD_CTX, decltype( &EVP_MD_CTX_destroy )> Digest::ctx_

private

type_

Type Digest::type_

private

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

• router/src/http/src/digest.h