#include <cstddef>
#include <ctime>
#include <cstdlib>
#include <cstring>
#include <cstdio>
#include <cstdint>
#include <config.h>
#include <mini-gmp.h>
#include <util/sha2.h>
#include "srp.h"

Include dependency graph for srp.cpp:

Classes
struct	NGConstant

struct	NGHex

union	HashCTX

struct	SRPVerifier

struct	SRPUser

Macros
#define	CSRP_USE_SHA256

#define	srp_dbg_data(data, datalen, prevtext) ;

#define	RAND_BUFF_MAX 128

#define	srp_dbg_num(num, text) ;

Functions
void	srp_set_memory_functions (void (new_srp_alloc)(size_t), void (new_srp_realloc)(void , size_t), void(new_srp_free)(void *))

static void	delete_ng (NGConstant *ng)

static NGConstant *	new_ng (SRP_NGType ng_type, const char n_hex, const char g_hex)

static int	hash_init (SRP_HashAlgorithm alg, HashCTX *c)

static int	hash_update (SRP_HashAlgorithm alg, HashCTX c, const void data, size_t len)

static int	hash_final (SRP_HashAlgorithm alg, HashCTX c, unsigned char md)

static unsigned char *	hash (SRP_HashAlgorithm alg, const unsigned char d, size_t n, unsigned char md)

static size_t	hash_length (SRP_HashAlgorithm alg)

static int	mpz_num_bytes (const mpz_t op)

static void	mpz_to_bin (const mpz_t op, unsigned char *to)

static void	mpz_from_bin (const unsigned char *s, size_t len, mpz_t ret)

static void	mpz_mulm (mpz_t op, const mpz_t op1, const mpz_t op2, const mpz_t d, mpz_t tmp)

static void	mpz_addm (mpz_t op, const mpz_t op1, const mpz_t op2, const mpz_t d, mpz_t tmp)

static void	mpz_subm (mpz_t op, const mpz_t op1, const mpz_t op2, const mpz_t d, mpz_t tmp)

static SRP_Result	H_nn (mpz_t result, SRP_HashAlgorithm alg, const mpz_t N, const mpz_t n1, const mpz_t n2)

static SRP_Result	H_ns (mpz_t result, SRP_HashAlgorithm alg, const unsigned char n, size_t len_n, const unsigned char bytes, uint32_t len_bytes)

static int	calculate_x (mpz_t result, SRP_HashAlgorithm alg, const unsigned char salt, size_t salt_len, const char username, const unsigned char *password, size_t password_len)

static SRP_Result	update_hash_n (SRP_HashAlgorithm alg, HashCTX *ctx, const mpz_t n)

static SRP_Result	hash_num (SRP_HashAlgorithm alg, const mpz_t n, unsigned char *dest)

static SRP_Result	calculate_M (SRP_HashAlgorithm alg, NGConstant ng, unsigned char dest, const char I, const unsigned char s_bytes, size_t s_len, const mpz_t A, const mpz_t B, const unsigned char *K)

static SRP_Result	calculate_H_AMK (SRP_HashAlgorithm alg, unsigned char dest, const mpz_t A, const unsigned char M, const unsigned char *K)

static SRP_Result	fill_buff ()

static SRP_Result	mpz_fill_random (mpz_t num)

static SRP_Result	init_random ()

SRP_Result	srp_create_salted_verification_key (SRP_HashAlgorithm alg, SRP_NGType ng_type, const char username_for_verifier, const unsigned char password, size_t len_password, unsigned char *bytes_s, size_t len_s, unsigned char *bytes_v, size_t len_v, const char n_hex, const char g_hex)

struct SRPVerifier *	srp_verifier_new (SRP_HashAlgorithm alg, SRP_NGType ng_type, const char username, const unsigned char bytes_s, size_t len_s, const unsigned char bytes_v, size_t len_v, const unsigned char bytes_A, size_t len_A, const unsigned char bytes_b, size_t len_b, unsigned char bytes_B, size_t len_B, const char n_hex, const char g_hex)

void	srp_verifier_delete (struct SRPVerifier *ver)

int	srp_verifier_is_authenticated (struct SRPVerifier *ver)

const char *	srp_verifier_get_username (struct SRPVerifier *ver)

const unsigned char *	srp_verifier_get_session_key (struct SRPVerifier ver, size_t key_length)

size_t	srp_verifier_get_session_key_length (struct SRPVerifier *ver)

void	srp_verifier_verify_session (struct SRPVerifier ver, const unsigned char user_M, unsigned char **bytes_HAMK)

struct SRPUser *	srp_user_new (SRP_HashAlgorithm alg, SRP_NGType ng_type, const char username, const char username_for_verifier, const unsigned char bytes_password, size_t len_password, const char n_hex, const char *g_hex)

void	srp_user_delete (struct SRPUser *usr)

int	srp_user_is_authenticated (struct SRPUser *usr)

const char *	srp_user_get_username (struct SRPUser *usr)

const unsigned char *	srp_user_get_session_key (struct SRPUser usr, size_t key_length)

size_t	srp_user_get_session_key_length (struct SRPUser *usr)

SRP_Result	srp_user_start_authentication (struct SRPUser usr, char username, const unsigned char bytes_a, size_t len_a, unsigned char *bytes_A, size_t len_A)

void	srp_user_process_challenge (struct SRPUser usr, const unsigned char bytes_s, size_t len_s, const unsigned char bytes_B, size_t len_B, unsigned char bytes_M, size_t len_M)

void	srp_user_verify_session (struct SRPUser usr, const unsigned char bytes_HAMK)

Variables
static int	g_initialized = 0

static unsigned int	g_rand_idx

static unsigned char	g_rand_buff [RAND_BUFF_MAX]

void (	srp_alloc )(size_t) = &malloc

void (	srp_realloc )(void *, size_t) = &realloc

void(*	srp_free )(void *) = &free

static struct NGHex	global_Ng_constants []

Macro Definition Documentation

◆ CSRP_USE_SHA256

#define CSRP_USE_SHA256

◆ RAND_BUFF_MAX

#define RAND_BUFF_MAX 128

◆ srp_dbg_data

#define srp_dbg_data	(	data,
		datalen,
		prevtext
	)	;

◆ srp_dbg_num

#define srp_dbg_num	(	num,
		text
	)	;

Function Documentation

◆ calculate_H_AMK()

static SRP_Result calculate_H_AMK	(	SRP_HashAlgorithm	alg,
		unsigned char *	dest,
		const mpz_t	A,
		const unsigned char *	M,
		const unsigned char *	K
	)

static

References hash_final(), hash_init(), hash_length(), hash_update(), SRP_ERR, SRP_OK, and update_hash_n().

Referenced by srp_user_process_challenge(), and srp_verifier_new().

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◆ calculate_M()

static SRP_Result calculate_M	(	SRP_HashAlgorithm	alg,
		NGConstant *	ng,
		unsigned char *	dest,
		const char *	I,
		const unsigned char *	s_bytes,
		size_t	s_len,
		const mpz_t	A,
		const mpz_t	B,
		const unsigned char *	K
	)

static

References NGConstant::g, hash(), hash_final(), hash_init(), hash_length(), hash_num(), hash_update(), NGConstant::N, SHA512_DIGEST_LENGTH, SRP_ERR, SRP_OK, and update_hash_n().

Referenced by srp_user_process_challenge(), and srp_verifier_new().

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◆ calculate_x()

static int calculate_x	(	mpz_t	result,
		SRP_HashAlgorithm	alg,
		const unsigned char *	salt,
		size_t	salt_len,
		const char *	username,
		const unsigned char *	password,
		size_t	password_len
	)

static

References H_ns(), hash_final(), hash_init(), hash_length(), hash_update(), SHA512_DIGEST_LENGTH, and srp_dbg_data.

Referenced by srp_create_salted_verification_key(), and srp_user_process_challenge().

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◆ delete_ng()

static void delete_ng ( NGConstant * ng )

static

References NGConstant::g, NGConstant::N, and srp_free.

Referenced by new_ng(), srp_create_salted_verification_key(), srp_user_delete(), srp_user_new(), and srp_verifier_delete().

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◆ fill_buff()

static SRP_Result fill_buff ( )

static

References g_rand_buff, g_rand_idx, SRP_ERR, and SRP_OK.

Referenced by init_random(), mpz_fill_random(), and srp_create_salted_verification_key().

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◆ H_nn()

static SRP_Result H_nn	(	mpz_t	result,
		SRP_HashAlgorithm	alg,
		const mpz_t	N,
		const mpz_t	n1,
		const mpz_t	n2
	)

static

References hash(), hash_length(), mpz_from_bin(), mpz_num_bytes(), mpz_to_bin(), SHA512_DIGEST_LENGTH, srp_alloc, SRP_ERR, srp_free, and SRP_OK.

Referenced by srp_user_process_challenge(), and srp_verifier_new().

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◆ H_ns()

static SRP_Result H_ns	(	mpz_t	result,
		SRP_HashAlgorithm	alg,
		const unsigned char *	n,
		size_t	len_n,
		const unsigned char *	bytes,
		uint32_t	len_bytes
	)

static

References hash(), hash_length(), mpz_from_bin(), SHA512_DIGEST_LENGTH, srp_alloc, SRP_ERR, srp_free, and SRP_OK.

Referenced by calculate_x().

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◆ hash()

static unsigned char* hash	(	SRP_HashAlgorithm	alg,
		const unsigned char *	d,
		size_t	n,
		unsigned char *	md
	)

static

References SHA256(), and SRP_SHA256.

Referenced by calculate_M(), check_field_or_nil(), CCraftDefManager::getCraftResult(), H_nn(), H_ns(), hash_num(), CCraftDefManager::initHashes(), ModApiUtil::l_check_password_entry(), ModApiBase::l_deprecated_function(), and ModApiUtil::l_get_password_hash().

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◆ hash_final()

static int hash_final	(	SRP_HashAlgorithm	alg,
		HashCTX *	c,
		unsigned char *	md
	)

static

References HashCTX::sha, HashCTX::sha256, SHA256_Final(), and SRP_SHA256.

Referenced by calculate_H_AMK(), calculate_M(), and calculate_x().

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◆ hash_init()

static int hash_init	(	SRP_HashAlgorithm	alg,
		HashCTX *	c
	)

static

References HashCTX::sha, HashCTX::sha256, SHA256_Init(), and SRP_SHA256.

Referenced by calculate_H_AMK(), calculate_M(), and calculate_x().

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◆ hash_length()

static size_t hash_length ( SRP_HashAlgorithm alg )

static

References SHA256_DIGEST_LENGTH, SHA_DIGEST_LENGTH, and SRP_SHA256.

Referenced by calculate_H_AMK(), calculate_M(), calculate_x(), H_nn(), H_ns(), srp_user_get_session_key(), srp_user_get_session_key_length(), srp_user_process_challenge(), srp_user_verify_session(), srp_verifier_get_session_key(), srp_verifier_get_session_key_length(), and srp_verifier_verify_session().

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◆ hash_num()

static SRP_Result hash_num	(	SRP_HashAlgorithm	alg,
		const mpz_t	n,
		unsigned char *	dest
	)

static

References hash(), mpz_num_bytes(), mpz_to_bin(), srp_alloc, SRP_ERR, srp_free, and SRP_OK.

Referenced by calculate_M(), srp_user_process_challenge(), and srp_verifier_new().

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◆ hash_update()

static int hash_update	(	SRP_HashAlgorithm	alg,
		HashCTX *	c,
		const void *	data,
		size_t	len
	)

static

References HashCTX::sha, HashCTX::sha256, SHA256_Update(), and SRP_SHA256.

Referenced by calculate_H_AMK(), calculate_M(), calculate_x(), and update_hash_n().

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◆ init_random()

static SRP_Result init_random ( )

static

References fill_buff(), g_initialized, and SRP_OK.

Referenced by srp_create_salted_verification_key(), srp_user_new(), and srp_verifier_new().

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◆ mpz_addm()

static void mpz_addm	(	mpz_t	op,
		const mpz_t	op1,
		const mpz_t	op2,
		const mpz_t	d,
		mpz_t	tmp
	)

inlinestatic

Referenced by srp_verifier_new().

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◆ mpz_fill_random()

static SRP_Result mpz_fill_random ( mpz_t num )

static

References fill_buff(), g_rand_buff, g_rand_idx, mpz_from_bin(), RAND_BUFF_MAX, SRP_ERR, and SRP_OK.

Referenced by srp_user_start_authentication(), and srp_verifier_new().

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◆ mpz_from_bin()

static void mpz_from_bin	(	const unsigned char *	s,
		size_t	len,
		mpz_t	ret
	)

inlinestatic

Referenced by H_nn(), H_ns(), mpz_fill_random(), srp_user_process_challenge(), srp_user_start_authentication(), and srp_verifier_new().

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◆ mpz_mulm()

static void mpz_mulm	(	mpz_t	op,
		const mpz_t	op1,
		const mpz_t	op2,
		const mpz_t	d,
		mpz_t	tmp
	)

inlinestatic

Referenced by srp_user_process_challenge(), and srp_verifier_new().

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◆ mpz_num_bytes()

static int mpz_num_bytes ( const mpz_t op )

inlinestatic

Referenced by H_nn(), hash_num(), srp_create_salted_verification_key(), srp_user_start_authentication(), srp_verifier_new(), and update_hash_n().

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◆ mpz_subm()

static void mpz_subm	(	mpz_t	op,
		const mpz_t	op1,
		const mpz_t	op2,
		const mpz_t	d,
		mpz_t	tmp
	)

inlinestatic

Referenced by srp_user_process_challenge().

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◆ mpz_to_bin()

static void mpz_to_bin	(	const mpz_t	op,
		unsigned char *	to
	)

inlinestatic

Referenced by H_nn(), hash_num(), srp_create_salted_verification_key(), srp_user_start_authentication(), srp_verifier_new(), and update_hash_n().

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◆ new_ng()

static NGConstant* new_ng	(	SRP_NGType	ng_type,
		const char *	n_hex,
		const char *	g_hex
	)

static

References delete_ng(), NGConstant::g, NGHex::g_hex, global_Ng_constants, NGConstant::N, NGHex::n_hex, srp_alloc, and SRP_NG_CUSTOM.

Referenced by srp_create_salted_verification_key(), srp_user_new(), and srp_verifier_new().

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◆ srp_create_salted_verification_key()

SRP_Result srp_create_salted_verification_key	(	SRP_HashAlgorithm	alg,
		SRP_NGType	ng_type,
		const char *	username_for_verifier,
		const unsigned char *	password,
		size_t	len_password,
		unsigned char **	bytes_s,
		size_t *	len_s,
		unsigned char **	bytes_v,
		size_t *	len_v,
		const char *	n_hex,
		const char *	g_hex
	)

References calculate_x(), delete_ng(), fill_buff(), NGConstant::g, g_rand_buff, g_rand_idx, init_random(), mpz_num_bytes(), mpz_to_bin(), NGConstant::N, new_ng(), RAND_BUFF_MAX, srp_alloc, srp_dbg_num, SRP_ERR, and SRP_OK.

Referenced by gen_srp_v().

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◆ srp_set_memory_functions()

void srp_set_memory_functions	(	void ()(size_t)	new_srp_alloc,
		void ()(void *, size_t)	new_srp_realloc,
		void()(void )	new_srp_free
	)

◆ srp_user_delete()

void srp_user_delete ( struct SRPUser * usr )

References SRPUser::a, SRPUser::A, SRPUser::bytes_A, delete_ng(), SRPUser::ng, SRPUser::password, SRPUser::password_len, SRPUser::S, srp_free, SRPUser::username, and SRPUser::username_verifier.

Referenced by Client::deleteAuthData(), and Client::handleCommand_Hello().

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◆ srp_user_get_session_key()

const unsigned char* srp_user_get_session_key	(	struct SRPUser *	usr,
		size_t *	key_length
	)

References SRPUser::hash_alg, hash_length(), and SRPUser::session_key.

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◆ srp_user_get_session_key_length()

size_t srp_user_get_session_key_length ( struct SRPUser * usr )

References SRPUser::hash_alg, and hash_length().

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◆ srp_user_get_username()

const char* srp_user_get_username ( struct SRPUser * usr )

References SRPUser::username.

◆ srp_user_is_authenticated()

int srp_user_is_authenticated ( struct SRPUser * usr )

References SRPUser::authenticated.

◆ srp_user_new()

struct SRPUser* srp_user_new	(	SRP_HashAlgorithm	alg,
		SRP_NGType	ng_type,
		const char *	username,
		const char *	username_for_verifier,
		const unsigned char *	bytes_password,
		size_t	len_password,
		const char *	n_hex,
		const char *	g_hex
	)

References SRPUser::a, SRPUser::A, SRPUser::authenticated, SRPUser::bytes_A, delete_ng(), SRPUser::hash_alg, init_random(), new_ng(), SRPUser::ng, SRPUser::password, SRPUser::password_len, SRPUser::S, srp_alloc, srp_free, SRP_OK, SRPUser::username, and SRPUser::username_verifier.

Referenced by Client::startAuth().

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◆ srp_user_process_challenge()

void srp_user_process_challenge	(	struct SRPUser *	usr,
		const unsigned char *	bytes_s,
		size_t	len_s,
		const unsigned char *	bytes_B,
		size_t	len_B,
		unsigned char **	bytes_M,
		size_t *	len_M
	)

References SRPUser::a, SRPUser::A, calculate_H_AMK(), calculate_M(), calculate_x(), NGConstant::g, SRPUser::H_AMK, H_nn(), SRPUser::hash_alg, hash_length(), hash_num(), SRPUser::M, mpz_from_bin(), mpz_mulm(), mpz_subm(), NGConstant::N, SRPUser::ng, SRPUser::password, SRPUser::password_len, SRPUser::S, SRPUser::session_key, srp_dbg_num, SRPUser::username, and SRPUser::username_verifier.

Referenced by Client::handleCommand_SrpBytesSandB().

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◆ srp_user_start_authentication()

SRP_Result srp_user_start_authentication	(	struct SRPUser *	usr,
		char **	username,
		const unsigned char *	bytes_a,
		size_t	len_a,
		unsigned char **	bytes_A,
		size_t *	len_A
	)

References SRPUser::a, SRPUser::A, SRPUser::bytes_A, NGConstant::g, mpz_fill_random(), mpz_from_bin(), mpz_num_bytes(), mpz_to_bin(), NGConstant::N, SRPUser::ng, srp_alloc, SRP_ERR, SRP_OK, and SRPUser::username.

Referenced by Client::startAuth().

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◆ srp_user_verify_session()

void srp_user_verify_session	(	struct SRPUser *	usr,
		const unsigned char *	bytes_HAMK
	)

References SRPUser::authenticated, SRPUser::H_AMK, SRPUser::hash_alg, and hash_length().

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◆ srp_verifier_delete()

void srp_verifier_delete ( struct SRPVerifier * ver )

References SRPVerifier::bytes_B, delete_ng(), SRPVerifier::ng, srp_free, and SRPVerifier::username.

Referenced by RemoteClient::notifyEvent().

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◆ srp_verifier_get_session_key()

const unsigned char* srp_verifier_get_session_key	(	struct SRPVerifier *	ver,
		size_t *	key_length
	)

References SRPVerifier::hash_alg, hash_length(), and SRPVerifier::session_key.

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◆ srp_verifier_get_session_key_length()

size_t srp_verifier_get_session_key_length ( struct SRPVerifier * ver )

References SRPVerifier::hash_alg, and hash_length().

Referenced by Server::handleCommand_SrpBytesM().

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◆ srp_verifier_get_username()

const char* srp_verifier_get_username ( struct SRPVerifier * ver )

References SRPVerifier::username.

◆ srp_verifier_is_authenticated()

int srp_verifier_is_authenticated ( struct SRPVerifier * ver )

References SRPVerifier::authenticated.

◆ srp_verifier_new()

struct SRPVerifier* srp_verifier_new	(	SRP_HashAlgorithm	alg,
		SRP_NGType	ng_type,
		const char *	username,
		const unsigned char *	bytes_s,
		size_t	len_s,
		const unsigned char *	bytes_v,
		size_t	len_v,
		const unsigned char *	bytes_A,
		size_t	len_A,
		const unsigned char *	bytes_b,
		size_t	len_b,
		unsigned char **	bytes_B,
		size_t *	len_B,
		const char *	n_hex,
		const char *	g_hex
	)

References SRPVerifier::authenticated, SRPVerifier::bytes_B, calculate_H_AMK(), calculate_M(), NGConstant::g, SRPVerifier::H_AMK, H_nn(), SRPVerifier::hash_alg, hash_num(), init_random(), SRPVerifier::M, mpz_addm(), mpz_fill_random(), mpz_from_bin(), mpz_mulm(), mpz_num_bytes(), mpz_to_bin(), NGConstant::N, new_ng(), SRPVerifier::ng, SRPVerifier::session_key, srp_alloc, srp_dbg_num, srp_free, SRP_OK, and SRPVerifier::username.

Referenced by Server::handleCommand_SrpBytesA().

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◆ srp_verifier_verify_session()

void srp_verifier_verify_session	(	struct SRPVerifier *	ver,
		const unsigned char *	user_M,
		unsigned char **	bytes_HAMK
	)

References SRPVerifier::authenticated, SRPVerifier::H_AMK, SRPVerifier::hash_alg, hash_length(), and SRPVerifier::M.

Referenced by Server::handleCommand_SrpBytesM().

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◆ update_hash_n()

static SRP_Result update_hash_n	(	SRP_HashAlgorithm	alg,
		HashCTX *	ctx,
		const mpz_t	n
	)

static

References hash_update(), mpz_num_bytes(), mpz_to_bin(), srp_alloc, SRP_ERR, srp_free, and SRP_OK.

Referenced by calculate_H_AMK(), and calculate_M().

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Variable Documentation

◆ g_initialized

int g_initialized = 0

static

Referenced by init_random().

◆ g_rand_buff

unsigned char g_rand_buff[RAND_BUFF_MAX]

static

Referenced by fill_buff(), mpz_fill_random(), and srp_create_salted_verification_key().

◆ g_rand_idx

unsigned int g_rand_idx

static

Referenced by fill_buff(), mpz_fill_random(), and srp_create_salted_verification_key().

◆ global_Ng_constants

struct NGHex global_Ng_constants[]

static

Referenced by new_ng().

◆ srp_alloc

void*(* srp_alloc) (size_t) ( size_t ) = &malloc

Referenced by H_nn(), H_ns(), hash_num(), new_ng(), srp_create_salted_verification_key(), srp_user_new(), srp_user_start_authentication(), srp_verifier_new(), and update_hash_n().

◆ srp_free

void(* srp_free) (void *) ( void * ) = &free

Referenced by delete_ng(), H_nn(), H_ns(), hash_num(), srp_user_delete(), srp_user_new(), srp_verifier_delete(), srp_verifier_new(), and update_hash_n().

◆ srp_realloc

void( srp_realloc) (void *, size_t)	(	void *	,
		size_t
	)		= &realloc

Classes

Macros

Functions

Variables

Macro Definition Documentation

◆ CSRP_USE_SHA256

◆ RAND_BUFF_MAX

◆ srp_dbg_data

◆ srp_dbg_num

Function Documentation

◆ calculate_H_AMK()

◆ calculate_M()

◆ calculate_x()

◆ delete_ng()

◆ fill_buff()

◆ H_nn()

◆ H_ns()

◆ hash()

◆ hash_final()

◆ hash_init()

◆ hash_length()

◆ hash_num()

◆ hash_update()

◆ init_random()

◆ mpz_addm()

◆ mpz_fill_random()

◆ mpz_from_bin()

◆ mpz_mulm()

◆ mpz_num_bytes()

◆ mpz_subm()

◆ mpz_to_bin()

◆ new_ng()

◆ srp_create_salted_verification_key()

◆ srp_set_memory_functions()

◆ srp_user_delete()

◆ srp_user_get_session_key()

◆ srp_user_get_session_key_length()

◆ srp_user_get_username()

◆ srp_user_is_authenticated()

◆ srp_user_new()

◆ srp_user_process_challenge()

◆ srp_user_start_authentication()

◆ srp_user_verify_session()

◆ srp_verifier_delete()

◆ srp_verifier_get_session_key()

◆ srp_verifier_get_session_key_length()

◆ srp_verifier_get_username()

◆ srp_verifier_is_authenticated()

◆ srp_verifier_new()

◆ srp_verifier_verify_session()

◆ update_hash_n()

Variable Documentation

◆ g_initialized

◆ g_rand_buff

◆ g_rand_idx

◆ global_Ng_constants

◆ srp_alloc

◆ srp_free

◆ srp_realloc