sha2_password::Validate_scramble Class Reference

Scramble validator Expects scramble to be: XOR(SHA2(m_src), SHA2(SHA2(SHA2(m_src)), m_rnd)) Validates it against: SHA2(SHA2(m_src)) and random string. More...

#include <i_sha2_password_common.h>

Public Member Functions
	Validate_scramble (const unsigned char *scramble, const unsigned char *known, const unsigned char *rnd, unsigned int rnd_length, Digest_info digest_type=Digest_info::SHA256_DIGEST)
	Validate scramble constructor. More...
	~Validate_scramble ()
	Validate_scramble destructor. More...
bool	validate ()
	Validate the scramble. More...

Private Attributes
const unsigned char *	m_scramble
	scramble to be validated More...
const unsigned char *	m_known
	SHA2(SHA2(plaintext_password)) More...
const unsigned char *	m_rnd
	random string More...
unsigned int	m_rnd_length
	random string length More...
Digest_info	m_digest_type
	Type of digest. More...
Generate_digest *	m_digest_generator
	Digest generator class. More...
unsigned int	m_digest_length
	length of the digest More...

Detailed Description

Scramble validator Expects scramble to be: XOR(SHA2(m_src), SHA2(SHA2(SHA2(m_src)), m_rnd)) Validates it against: SHA2(SHA2(m_src)) and random string.

See also

Generate_scramble

SHA256_digest

Digest_info

Constructor & Destructor Documentation

Validate_scramble()

sha2_password::Validate_scramble::Validate_scramble	(	const unsigned char *	scramble,
		const unsigned char *	known,
		const unsigned char *	rnd,
		unsigned int	rnd_length,
		Digest_info	digest_type = Digest_info::SHA256_DIGEST
	)

Validate scramble constructor.

Parameters

[in]	scramble	Scramble to be validated
[in]	known	Known digest against which scramble is to be verified
[in]	rnd	Salt
[in]	rnd_length	Length of the salt buffer
[in]	digest_type	Type od digest

~Validate_scramble()

sha2_password::Validate_scramble::~Validate_scramble

(

)

Validate_scramble destructor.

Member Function Documentation

validate()

bool sha2_password::Validate_scramble::validate

(

)

Validate the scramble.

Note

SHA2(known, rnd) => scramble_stage1 XOR(scramble, scramble_stage1) => digest_stage1 SHA2(digest_stage1) => digest_stage2 m_known == digest_stage2

Returns

Result of validation process

Return values

false	Successful validation
true	Error

Member Data Documentation

m_digest_generator

Generate_digest* sha2_password::Validate_scramble::m_digest_generator

private

Digest generator class.

m_digest_length

unsigned int sha2_password::Validate_scramble::m_digest_length

private

length of the digest

m_digest_type

Digest_info sha2_password::Validate_scramble::m_digest_type

private

Type of digest.

m_known

const unsigned char* sha2_password::Validate_scramble::m_known

private

SHA2(SHA2(plaintext_password))

m_rnd

const unsigned char* sha2_password::Validate_scramble::m_rnd

private

random string

m_rnd_length

unsigned int sha2_password::Validate_scramble::m_rnd_length

private

random string length

m_scramble

const unsigned char* sha2_password::Validate_scramble::m_scramble

private

scramble to be validated

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

• sql/auth/i_sha2_password_common.h
• sql/auth/sha2_password_common.cc