diff options
author | Matt Caswell <matt@openssl.org> | 2015-01-21 23:55:44 +0000 |
---|---|---|
committer | Matt Caswell <matt@openssl.org> | 2015-01-22 09:38:39 +0000 |
commit | 10621efd3296a92f489f6ab26a88e88d9790930e (patch) | |
tree | aab0039a60553725f787518cc50fd630b55ce8a8 /ssl/tls_srp.c | |
parent | e498b83fed7025eeacb4dd2ad183c3f6236467b2 (diff) |
Run util/openssl-format-source -v -c .
Reviewed-by: Tim Hudson <tjh@openssl.org>
Diffstat (limited to 'ssl/tls_srp.c')
-rw-r--r-- | ssl/tls_srp.c | 878 |
1 files changed, 443 insertions, 435 deletions
diff --git a/ssl/tls_srp.c b/ssl/tls_srp.c index e7368a8f6b..d36cfa0a5c 100644 --- a/ssl/tls_srp.c +++ b/ssl/tls_srp.c @@ -1,7 +1,8 @@ /* ssl/tls_srp.c */ -/* Written by Christophe Renou (christophe.renou@edelweb.fr) with - * the precious help of Peter Sylvester (peter.sylvester@edelweb.fr) - * for the EdelKey project and contributed to the OpenSSL project 2004. +/* + * Written by Christophe Renou (christophe.renou@edelweb.fr) with the + * precious help of Peter Sylvester (peter.sylvester@edelweb.fr) for the + * EdelKey project and contributed to the OpenSSL project 2004. */ /* ==================================================================== * Copyright (c) 2004-2011 The OpenSSL Project. All rights reserved. @@ -11,7 +12,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -59,475 +60,482 @@ #include "ssl_locl.h" #ifndef OPENSSL_NO_SRP -#include <openssl/rand.h> -#include <openssl/srp.h> -#include <openssl/err.h> +# include <openssl/rand.h> +# include <openssl/srp.h> +# include <openssl/err.h> int SSL_CTX_SRP_CTX_free(struct ssl_ctx_st *ctx) - { - if (ctx == NULL) - return 0; - OPENSSL_free(ctx->srp_ctx.login); - BN_free(ctx->srp_ctx.N); - BN_free(ctx->srp_ctx.g); - BN_free(ctx->srp_ctx.s); - BN_free(ctx->srp_ctx.B); - BN_free(ctx->srp_ctx.A); - BN_free(ctx->srp_ctx.a); - BN_free(ctx->srp_ctx.b); - BN_free(ctx->srp_ctx.v); - ctx->srp_ctx.TLS_ext_srp_username_callback = NULL; - ctx->srp_ctx.SRP_cb_arg = NULL; - ctx->srp_ctx.SRP_verify_param_callback = NULL; - ctx->srp_ctx.SRP_give_srp_client_pwd_callback = NULL; - ctx->srp_ctx.N = NULL; - ctx->srp_ctx.g = NULL; - ctx->srp_ctx.s = NULL; - ctx->srp_ctx.B = NULL; - ctx->srp_ctx.A = NULL; - ctx->srp_ctx.a = NULL; - ctx->srp_ctx.b = NULL; - ctx->srp_ctx.v = NULL; - ctx->srp_ctx.login = NULL; - ctx->srp_ctx.info = NULL; - ctx->srp_ctx.strength = SRP_MINIMAL_N; - ctx->srp_ctx.srp_Mask = 0; - return (1); - } +{ + if (ctx == NULL) + return 0; + OPENSSL_free(ctx->srp_ctx.login); + BN_free(ctx->srp_ctx.N); + BN_free(ctx->srp_ctx.g); + BN_free(ctx->srp_ctx.s); + BN_free(ctx->srp_ctx.B); + BN_free(ctx->srp_ctx.A); + BN_free(ctx->srp_ctx.a); + BN_free(ctx->srp_ctx.b); + BN_free(ctx->srp_ctx.v); + ctx->srp_ctx.TLS_ext_srp_username_callback = NULL; + ctx->srp_ctx.SRP_cb_arg = NULL; + ctx->srp_ctx.SRP_verify_param_callback = NULL; + ctx->srp_ctx.SRP_give_srp_client_pwd_callback = NULL; + ctx->srp_ctx.N = NULL; + ctx->srp_ctx.g = NULL; + ctx->srp_ctx.s = NULL; + ctx->srp_ctx.B = NULL; + ctx->srp_ctx.A = NULL; + ctx->srp_ctx.a = NULL; + ctx->srp_ctx.b = NULL; + ctx->srp_ctx.v = NULL; + ctx->srp_ctx.login = NULL; + ctx->srp_ctx.info = NULL; + ctx->srp_ctx.strength = SRP_MINIMAL_N; + ctx->srp_ctx.srp_Mask = 0; + return (1); +} int SSL_SRP_CTX_free(struct ssl_st *s) - { - if (s == NULL) - return 0; - OPENSSL_free(s->srp_ctx.login); - BN_free(s->srp_ctx.N); - BN_free(s->srp_ctx.g); - BN_free(s->srp_ctx.s); - BN_free(s->srp_ctx.B); - BN_free(s->srp_ctx.A); - BN_free(s->srp_ctx.a); - BN_free(s->srp_ctx.b); - BN_free(s->srp_ctx.v); - s->srp_ctx.TLS_ext_srp_username_callback = NULL; - s->srp_ctx.SRP_cb_arg = NULL; - s->srp_ctx.SRP_verify_param_callback = NULL; - s->srp_ctx.SRP_give_srp_client_pwd_callback = NULL; - s->srp_ctx.N = NULL; - s->srp_ctx.g = NULL; - s->srp_ctx.s = NULL; - s->srp_ctx.B = NULL; - s->srp_ctx.A = NULL; - s->srp_ctx.a = NULL; - s->srp_ctx.b = NULL; - s->srp_ctx.v = NULL; - s->srp_ctx.login = NULL; - s->srp_ctx.info = NULL; - s->srp_ctx.strength = SRP_MINIMAL_N; - s->srp_ctx.srp_Mask = 0; - return (1); - } +{ + if (s == NULL) + return 0; + OPENSSL_free(s->srp_ctx.login); + BN_free(s->srp_ctx.N); + BN_free(s->srp_ctx.g); + BN_free(s->srp_ctx.s); + BN_free(s->srp_ctx.B); + BN_free(s->srp_ctx.A); + BN_free(s->srp_ctx.a); + BN_free(s->srp_ctx.b); + BN_free(s->srp_ctx.v); + s->srp_ctx.TLS_ext_srp_username_callback = NULL; + s->srp_ctx.SRP_cb_arg = NULL; + s->srp_ctx.SRP_verify_param_callback = NULL; + s->srp_ctx.SRP_give_srp_client_pwd_callback = NULL; + s->srp_ctx.N = NULL; + s->srp_ctx.g = NULL; + s->srp_ctx.s = NULL; + s->srp_ctx.B = NULL; + s->srp_ctx.A = NULL; + s->srp_ctx.a = NULL; + s->srp_ctx.b = NULL; + s->srp_ctx.v = NULL; + s->srp_ctx.login = NULL; + s->srp_ctx.info = NULL; + s->srp_ctx.strength = SRP_MINIMAL_N; + s->srp_ctx.srp_Mask = 0; + return (1); +} int SSL_SRP_CTX_init(struct ssl_st *s) - { - SSL_CTX *ctx; - - if ((s == NULL) || ((ctx = s->ctx) == NULL)) - return 0; - s->srp_ctx.SRP_cb_arg = ctx->srp_ctx.SRP_cb_arg; - /* set client Hello login callback */ - s->srp_ctx.TLS_ext_srp_username_callback = ctx->srp_ctx.TLS_ext_srp_username_callback; - /* set SRP N/g param callback for verification */ - s->srp_ctx.SRP_verify_param_callback = ctx->srp_ctx.SRP_verify_param_callback; - /* set SRP client passwd callback */ - s->srp_ctx.SRP_give_srp_client_pwd_callback = ctx->srp_ctx.SRP_give_srp_client_pwd_callback; - - s->srp_ctx.N = NULL; - s->srp_ctx.g = NULL; - s->srp_ctx.s = NULL; - s->srp_ctx.B = NULL; - s->srp_ctx.A = NULL; - s->srp_ctx.a = NULL; - s->srp_ctx.b = NULL; - s->srp_ctx.v = NULL; - s->srp_ctx.login = NULL; - s->srp_ctx.info = ctx->srp_ctx.info; - s->srp_ctx.strength = ctx->srp_ctx.strength; - - if (((ctx->srp_ctx.N != NULL) && - ((s->srp_ctx.N = BN_dup(ctx->srp_ctx.N)) == NULL)) || - ((ctx->srp_ctx.g != NULL) && - ((s->srp_ctx.g = BN_dup(ctx->srp_ctx.g)) == NULL)) || - ((ctx->srp_ctx.s != NULL) && - ((s->srp_ctx.s = BN_dup(ctx->srp_ctx.s)) == NULL)) || - ((ctx->srp_ctx.B != NULL) && - ((s->srp_ctx.B = BN_dup(ctx->srp_ctx.B)) == NULL)) || - ((ctx->srp_ctx.A != NULL) && - ((s->srp_ctx.A = BN_dup(ctx->srp_ctx.A)) == NULL)) || - ((ctx->srp_ctx.a != NULL) && - ((s->srp_ctx.a = BN_dup(ctx->srp_ctx.a)) == NULL)) || - ((ctx->srp_ctx.v != NULL) && - ((s->srp_ctx.v = BN_dup(ctx->srp_ctx.v)) == NULL)) || - ((ctx->srp_ctx.b != NULL) && - ((s->srp_ctx.b = BN_dup(ctx->srp_ctx.b)) == NULL))) - { - SSLerr(SSL_F_SSL_SRP_CTX_INIT,ERR_R_BN_LIB); - goto err; - } - if ((ctx->srp_ctx.login != NULL) && - ((s->srp_ctx.login = BUF_strdup(ctx->srp_ctx.login)) == NULL)) - { - SSLerr(SSL_F_SSL_SRP_CTX_INIT,ERR_R_INTERNAL_ERROR); - goto err; - } - s->srp_ctx.srp_Mask = ctx->srp_ctx.srp_Mask; - - return (1); -err: - OPENSSL_free(s->srp_ctx.login); - BN_free(s->srp_ctx.N); - BN_free(s->srp_ctx.g); - BN_free(s->srp_ctx.s); - BN_free(s->srp_ctx.B); - BN_free(s->srp_ctx.A); - BN_free(s->srp_ctx.a); - BN_free(s->srp_ctx.b); - BN_free(s->srp_ctx.v); - return (0); - } +{ + SSL_CTX *ctx; + + if ((s == NULL) || ((ctx = s->ctx) == NULL)) + return 0; + s->srp_ctx.SRP_cb_arg = ctx->srp_ctx.SRP_cb_arg; + /* set client Hello login callback */ + s->srp_ctx.TLS_ext_srp_username_callback = + ctx->srp_ctx.TLS_ext_srp_username_callback; + /* set SRP N/g param callback for verification */ + s->srp_ctx.SRP_verify_param_callback = + ctx->srp_ctx.SRP_verify_param_callback; + /* set SRP client passwd callback */ + s->srp_ctx.SRP_give_srp_client_pwd_callback = + ctx->srp_ctx.SRP_give_srp_client_pwd_callback; + + s->srp_ctx.N = NULL; + s->srp_ctx.g = NULL; + s->srp_ctx.s = NULL; + s->srp_ctx.B = NULL; + s->srp_ctx.A = NULL; + s->srp_ctx.a = NULL; + s->srp_ctx.b = NULL; + s->srp_ctx.v = NULL; + s->srp_ctx.login = NULL; + s->srp_ctx.info = ctx->srp_ctx.info; + s->srp_ctx.strength = ctx->srp_ctx.strength; + + if (((ctx->srp_ctx.N != NULL) && + ((s->srp_ctx.N = BN_dup(ctx->srp_ctx.N)) == NULL)) || + ((ctx->srp_ctx.g != NULL) && + ((s->srp_ctx.g = BN_dup(ctx->srp_ctx.g)) == NULL)) || + ((ctx->srp_ctx.s != NULL) && + ((s->srp_ctx.s = BN_dup(ctx->srp_ctx.s)) == NULL)) || + ((ctx->srp_ctx.B != NULL) && + ((s->srp_ctx.B = BN_dup(ctx->srp_ctx.B)) == NULL)) || + ((ctx->srp_ctx.A != NULL) && + ((s->srp_ctx.A = BN_dup(ctx->srp_ctx.A)) == NULL)) || + ((ctx->srp_ctx.a != NULL) && + ((s->srp_ctx.a = BN_dup(ctx->srp_ctx.a)) == NULL)) || + ((ctx->srp_ctx.v != NULL) && + ((s->srp_ctx.v = BN_dup(ctx->srp_ctx.v)) == NULL)) || + ((ctx->srp_ctx.b != NULL) && + ((s->srp_ctx.b = BN_dup(ctx->srp_ctx.b)) == NULL))) { + SSLerr(SSL_F_SSL_SRP_CTX_INIT, ERR_R_BN_LIB); + goto err; + } + if ((ctx->srp_ctx.login != NULL) && + ((s->srp_ctx.login = BUF_strdup(ctx->srp_ctx.login)) == NULL)) { + SSLerr(SSL_F_SSL_SRP_CTX_INIT, ERR_R_INTERNAL_ERROR); + goto err; + } + s->srp_ctx.srp_Mask = ctx->srp_ctx.srp_Mask; + + return (1); + err: + OPENSSL_free(s->srp_ctx.login); + BN_free(s->srp_ctx.N); + BN_free(s->srp_ctx.g); + BN_free(s->srp_ctx.s); + BN_free(s->srp_ctx.B); + BN_free(s->srp_ctx.A); + BN_free(s->srp_ctx.a); + BN_free(s->srp_ctx.b); + BN_free(s->srp_ctx.v); + return (0); +} int SSL_CTX_SRP_CTX_init(struct ssl_ctx_st *ctx) - { - if (ctx == NULL) - return 0; - - ctx->srp_ctx.SRP_cb_arg = NULL; - /* set client Hello login callback */ - ctx->srp_ctx.TLS_ext_srp_username_callback = NULL; - /* set SRP N/g param callback for verification */ - ctx->srp_ctx.SRP_verify_param_callback = NULL; - /* set SRP client passwd callback */ - ctx->srp_ctx.SRP_give_srp_client_pwd_callback = NULL; - - ctx->srp_ctx.N = NULL; - ctx->srp_ctx.g = NULL; - ctx->srp_ctx.s = NULL; - ctx->srp_ctx.B = NULL; - ctx->srp_ctx.A = NULL; - ctx->srp_ctx.a = NULL; - ctx->srp_ctx.b = NULL; - ctx->srp_ctx.v = NULL; - ctx->srp_ctx.login = NULL; - ctx->srp_ctx.srp_Mask = 0; - ctx->srp_ctx.info = NULL; - ctx->srp_ctx.strength = SRP_MINIMAL_N; - - return (1); - } +{ + if (ctx == NULL) + return 0; + + ctx->srp_ctx.SRP_cb_arg = NULL; + /* set client Hello login callback */ + ctx->srp_ctx.TLS_ext_srp_username_callback = NULL; + /* set SRP N/g param callback for verification */ + ctx->srp_ctx.SRP_verify_param_callback = NULL; + /* set SRP client passwd callback */ + ctx->srp_ctx.SRP_give_srp_client_pwd_callback = NULL; + + ctx->srp_ctx.N = NULL; + ctx->srp_ctx.g = NULL; + ctx->srp_ctx.s = NULL; + ctx->srp_ctx.B = NULL; + ctx->srp_ctx.A = NULL; + ctx->srp_ctx.a = NULL; + ctx->srp_ctx.b = NULL; + ctx->srp_ctx.v = NULL; + ctx->srp_ctx.login = NULL; + ctx->srp_ctx.srp_Mask = 0; + ctx->srp_ctx.info = NULL; + ctx->srp_ctx.strength = SRP_MINIMAL_N; + + return (1); +} /* server side */ int SSL_srp_server_param_with_username(SSL *s, int *ad) - { - unsigned char b[SSL_MAX_MASTER_KEY_LENGTH]; - int al; - - *ad = SSL_AD_UNKNOWN_PSK_IDENTITY; - if ((s->srp_ctx.TLS_ext_srp_username_callback !=NULL) && - ((al = s->srp_ctx.TLS_ext_srp_username_callback(s, ad, s->srp_ctx.SRP_cb_arg))!=SSL_ERROR_NONE)) - return al; - - *ad = SSL_AD_INTERNAL_ERROR; - if ((s->srp_ctx.N == NULL) || - (s->srp_ctx.g == NULL) || - (s->srp_ctx.s == NULL) || - (s->srp_ctx.v == NULL)) - return SSL3_AL_FATAL; - - if (RAND_bytes(b, sizeof(b)) <= 0) - return SSL3_AL_FATAL; - s->srp_ctx.b = BN_bin2bn(b,sizeof(b),NULL); - OPENSSL_cleanse(b,sizeof(b)); - - /* Calculate: B = (kv + g^b) % N */ - - return ((s->srp_ctx.B = SRP_Calc_B(s->srp_ctx.b, s->srp_ctx.N, s->srp_ctx.g, s->srp_ctx.v)) != NULL)? - SSL_ERROR_NONE:SSL3_AL_FATAL; - } - -/* If the server just has the raw password, make up a verifier entry on the fly */ -int SSL_set_srp_server_param_pw(SSL *s, const char *user, const char *pass, const char *grp) - { - SRP_gN *GN = SRP_get_default_gN(grp); - if(GN == NULL) return -1; - s->srp_ctx.N = BN_dup(GN->N); - s->srp_ctx.g = BN_dup(GN->g); - if(s->srp_ctx.v != NULL) - { - BN_clear_free(s->srp_ctx.v); - s->srp_ctx.v = NULL; - } - if(s->srp_ctx.s != NULL) - { - BN_clear_free(s->srp_ctx.s); - s->srp_ctx.s = NULL; - } - if(!SRP_create_verifier_BN(user, pass, &s->srp_ctx.s, &s->srp_ctx.v, GN->N, GN->g)) return -1; - - return 1; - } +{ + unsigned char b[SSL_MAX_MASTER_KEY_LENGTH]; + int al; + + *ad = SSL_AD_UNKNOWN_PSK_IDENTITY; + if ((s->srp_ctx.TLS_ext_srp_username_callback != NULL) && + ((al = + s->srp_ctx.TLS_ext_srp_username_callback(s, ad, + s->srp_ctx.SRP_cb_arg)) != + SSL_ERROR_NONE)) + return al; + + *ad = SSL_AD_INTERNAL_ERROR; + if ((s->srp_ctx.N == NULL) || + (s->srp_ctx.g == NULL) || + (s->srp_ctx.s == NULL) || (s->srp_ctx.v == NULL)) + return SSL3_AL_FATAL; + + if (RAND_bytes(b, sizeof(b)) <= 0) + return SSL3_AL_FATAL; + s->srp_ctx.b = BN_bin2bn(b, sizeof(b), NULL); + OPENSSL_cleanse(b, sizeof(b)); + + /* Calculate: B = (kv + g^b) % N */ + + return ((s->srp_ctx.B = + SRP_Calc_B(s->srp_ctx.b, s->srp_ctx.N, s->srp_ctx.g, + s->srp_ctx.v)) != + NULL) ? SSL_ERROR_NONE : SSL3_AL_FATAL; +} + +/* + * If the server just has the raw password, make up a verifier entry on the + * fly + */ +int SSL_set_srp_server_param_pw(SSL *s, const char *user, const char *pass, + const char *grp) +{ + SRP_gN *GN = SRP_get_default_gN(grp); + if (GN == NULL) + return -1; + s->srp_ctx.N = BN_dup(GN->N); + s->srp_ctx.g = BN_dup(GN->g); + if (s->srp_ctx.v != NULL) { + BN_clear_free(s->srp_ctx.v); + s->srp_ctx.v = NULL; + } + if (s->srp_ctx.s != NULL) { + BN_clear_free(s->srp_ctx.s); + s->srp_ctx.s = NULL; + } + if (!SRP_create_verifier_BN + (user, pass, &s->srp_ctx.s, &s->srp_ctx.v, GN->N, GN->g)) + return -1; + + return 1; +} int SSL_set_srp_server_param(SSL *s, const BIGNUM *N, const BIGNUM *g, - BIGNUM *sa, BIGNUM *v, char *info) - { - if (N!= NULL) - { - if (s->srp_ctx.N != NULL) - { - if (!BN_copy(s->srp_ctx.N,N)) - { - BN_free(s->srp_ctx.N); - s->srp_ctx.N = NULL; - } - } - else - s->srp_ctx.N = BN_dup(N); - } - if (g!= NULL) - { - if (s->srp_ctx.g != NULL) - { - if (!BN_copy(s->srp_ctx.g,g)) - { - BN_free(s->srp_ctx.g); - s->srp_ctx.g = NULL; - } - } - else - s->srp_ctx.g = BN_dup(g); - } - if (sa!= NULL) - { - if (s->srp_ctx.s != NULL) - { - if (!BN_copy(s->srp_ctx.s,sa)) - { - BN_free(s->srp_ctx.s); - s->srp_ctx.s = NULL; - } - } - else - s->srp_ctx.s = BN_dup(sa); - } - if (v!= NULL) - { - if (s->srp_ctx.v != NULL) - { - if (!BN_copy(s->srp_ctx.v,v)) - { - BN_free(s->srp_ctx.v); - s->srp_ctx.v = NULL; - } - } - else - s->srp_ctx.v = BN_dup(v); - } - s->srp_ctx.info = info; - - if (!(s->srp_ctx.N) || - !(s->srp_ctx.g) || - !(s->srp_ctx.s) || - !(s->srp_ctx.v)) - return -1; - - return 1; - } - -int SRP_generate_server_master_secret(SSL *s,unsigned char *master_key) - { - BIGNUM *K = NULL, *u = NULL; - int ret = -1, tmp_len; - unsigned char *tmp = NULL; - - if (!SRP_Verify_A_mod_N(s->srp_ctx.A,s->srp_ctx.N)) - goto err; - if (!(u = SRP_Calc_u(s->srp_ctx.A,s->srp_ctx.B,s->srp_ctx.N))) - goto err; - if (!(K = SRP_Calc_server_key(s->srp_ctx.A, s->srp_ctx.v, u, s->srp_ctx.b, s->srp_ctx.N))) - goto err; - - tmp_len = BN_num_bytes(K); - if ((tmp = OPENSSL_malloc(tmp_len)) == NULL) - goto err; - BN_bn2bin(K, tmp); - ret = s->method->ssl3_enc->generate_master_secret(s,master_key,tmp,tmp_len); -err: - if (tmp) - { - OPENSSL_cleanse(tmp,tmp_len) ; - OPENSSL_free(tmp); - } - BN_clear_free(K); - BN_clear_free(u); - return ret; - } + BIGNUM *sa, BIGNUM *v, char *info) +{ + if (N != NULL) { + if (s->srp_ctx.N != NULL) { + if (!BN_copy(s->srp_ctx.N, N)) { + BN_free(s->srp_ctx.N); + s->srp_ctx.N = NULL; + } + } else + s->srp_ctx.N = BN_dup(N); + } + if (g != NULL) { + if (s->srp_ctx.g != NULL) { + if (!BN_copy(s->srp_ctx.g, g)) { + BN_free(s->srp_ctx.g); + s->srp_ctx.g = NULL; + } + } else + s->srp_ctx.g = BN_dup(g); + } + if (sa != NULL) { + if (s->srp_ctx.s != NULL) { + if (!BN_copy(s->srp_ctx.s, sa)) { + BN_free(s->srp_ctx.s); + s->srp_ctx.s = NULL; + } + } else + s->srp_ctx.s = BN_dup(sa); + } + if (v != NULL) { + if (s->srp_ctx.v != NULL) { + if (!BN_copy(s->srp_ctx.v, v)) { + BN_free(s->srp_ctx.v); + s->srp_ctx.v = NULL; + } + } else + s->srp_ctx.v = BN_dup(v); + } + s->srp_ctx.info = info; + + if (!(s->srp_ctx.N) || + !(s->srp_ctx.g) || !(s->srp_ctx.s) || !(s->srp_ctx.v)) + return -1; + + return 1; +} + +int SRP_generate_server_master_secret(SSL *s, unsigned char *master_key) +{ + BIGNUM *K = NULL, *u = NULL; + int ret = -1, tmp_len; + unsigned char *tmp = NULL; + + if (!SRP_Verify_A_mod_N(s->srp_ctx.A, s->srp_ctx.N)) + goto err; + if (!(u = SRP_Calc_u(s->srp_ctx.A, s->srp_ctx.B, s->srp_ctx.N))) + goto err; + if (! + (K = + SRP_Calc_server_key(s->srp_ctx.A, s->srp_ctx.v, u, s->srp_ctx.b, + s->srp_ctx.N))) + goto err; + + tmp_len = BN_num_bytes(K); + if ((tmp = OPENSSL_malloc(tmp_len)) == NULL) + goto err; + BN_bn2bin(K, tmp); + ret = + s->method->ssl3_enc->generate_master_secret(s, master_key, tmp, + tmp_len); + err: + if (tmp) { + OPENSSL_cleanse(tmp, tmp_len); + OPENSSL_free(tmp); + } + BN_clear_free(K); + BN_clear_free(u); + return ret; +} /* client side */ -int SRP_generate_client_master_secret(SSL *s,unsigned char *master_key) - { - BIGNUM *x = NULL, *u = NULL, *K = NULL; - int ret = -1, tmp_len; - char *passwd = NULL; - unsigned char *tmp = NULL; - - /* Checks if b % n == 0 - */ - if (SRP_Verify_B_mod_N(s->srp_ctx.B,s->srp_ctx.N)==0) goto err; - if (!(u = SRP_Calc_u(s->srp_ctx.A,s->srp_ctx.B,s->srp_ctx.N))) goto err; - if (s->srp_ctx.SRP_give_srp_client_pwd_callback == NULL) goto err; - if (!(passwd = s->srp_ctx.SRP_give_srp_client_pwd_callback(s, s->srp_ctx.SRP_cb_arg))) goto err; - if (!(x = SRP_Calc_x(s->srp_ctx.s,s->srp_ctx.login,passwd))) goto err; - if (!(K = SRP_Calc_client_key(s->srp_ctx.N, s->srp_ctx.B, s->srp_ctx.g, x, s->srp_ctx.a, u))) goto err; - - tmp_len = BN_num_bytes(K); - if ((tmp = OPENSSL_malloc(tmp_len)) == NULL) goto err; - BN_bn2bin(K, tmp); - ret = s->method->ssl3_enc->generate_master_secret(s,master_key,tmp,tmp_len); -err: - if (tmp) - { - OPENSSL_cleanse(tmp,tmp_len) ; - OPENSSL_free(tmp); - } - BN_clear_free(K); - BN_clear_free(x); - if (passwd) - { - OPENSSL_cleanse(passwd,strlen(passwd)) ; - OPENSSL_free(passwd); - } - BN_clear_free(u); - return ret; - } +int SRP_generate_client_master_secret(SSL *s, unsigned char *master_key) +{ + BIGNUM *x = NULL, *u = NULL, *K = NULL; + int ret = -1, tmp_len; + char *passwd = NULL; + unsigned char *tmp = NULL; + + /* + * Checks if b % n == 0 + */ + if (SRP_Verify_B_mod_N(s->srp_ctx.B, s->srp_ctx.N) == 0) + goto err; + if (!(u = SRP_Calc_u(s->srp_ctx.A, s->srp_ctx.B, s->srp_ctx.N))) + goto err; + if (s->srp_ctx.SRP_give_srp_client_pwd_callback == NULL) + goto err; + if (! + (passwd = + s->srp_ctx.SRP_give_srp_client_pwd_callback(s, + s->srp_ctx.SRP_cb_arg))) + goto err; + if (!(x = SRP_Calc_x(s->srp_ctx.s, s->srp_ctx.login, passwd))) + goto err; + if (! + (K = + SRP_Calc_client_key(s->srp_ctx.N, s->srp_ctx.B, s->srp_ctx.g, x, + s->srp_ctx.a, u))) + goto err; + + tmp_len = BN_num_bytes(K); + if ((tmp = OPENSSL_malloc(tmp_len)) == NULL) + goto err; + BN_bn2bin(K, tmp); + ret = + s->method->ssl3_enc->generate_master_secret(s, master_key, tmp, + tmp_len); + err: + if (tmp) { + OPENSSL_cleanse(tmp, tmp_len); + OPENSSL_free(tmp); + } + BN_clear_free(K); + BN_clear_free(x); + if (passwd) { + OPENSSL_cleanse(passwd, strlen(passwd)); + OPENSSL_free(passwd); + } + BN_clear_free(u); + return ret; +} int srp_verify_server_param(SSL *s, int *al) - { - SRP_CTX *srp = &s->srp_ctx; - /* Sanity check parameters: we can quickly check B % N == 0 - * by checking B != 0 since B < N - */ - if (BN_ucmp(srp->g, srp->N) >=0 || BN_ucmp(srp->B, srp->N) >= 0 - || BN_is_zero(srp->B)) - { - *al = SSL3_AD_ILLEGAL_PARAMETER; - return 0; - } - - if (BN_num_bits(srp->N) < srp->strength) - { - *al = TLS1_AD_INSUFFICIENT_SECURITY; - return 0; - } - - if (srp->SRP_verify_param_callback) - { - if (srp->SRP_verify_param_callback(s, srp->SRP_cb_arg) <= 0) - { - *al = TLS1_AD_INSUFFICIENT_SECURITY; - return 0; - } - } - else if(!SRP_check_known_gN_param(srp->g, srp->N)) - { - *al = TLS1_AD_INSUFFICIENT_SECURITY; - return 0; - } - - return 1; - } - +{ + SRP_CTX *srp = &s->srp_ctx; + /* + * Sanity check parameters: we can quickly check B % N == 0 by checking B + * != 0 since B < N + */ + if (BN_ucmp(srp->g, srp->N) >= 0 || BN_ucmp(srp->B, srp->N) >= 0 + || BN_is_zero(srp->B)) { + *al = SSL3_AD_ILLEGAL_PARAMETER; + return 0; + } + + if (BN_num_bits(srp->N) < srp->strength) { + *al = TLS1_AD_INSUFFICIENT_SECURITY; + return 0; + } + + if (srp->SRP_verify_param_callback) { + if (srp->SRP_verify_param_callback(s, srp->SRP_cb_arg) <= 0) { + *al = TLS1_AD_INSUFFICIENT_SECURITY; + return 0; + } + } else if (!SRP_check_known_gN_param(srp->g, srp->N)) { + *al = TLS1_AD_INSUFFICIENT_SECURITY; + return 0; + } + + return 1; +} int SRP_Calc_A_param(SSL *s) - { - unsigned char rnd[SSL_MAX_MASTER_KEY_LENGTH]; +{ + unsigned char rnd[SSL_MAX_MASTER_KEY_LENGTH]; - RAND_bytes(rnd, sizeof(rnd)); - s->srp_ctx.a = BN_bin2bn(rnd, sizeof(rnd), s->srp_ctx.a); - OPENSSL_cleanse(rnd, sizeof(rnd)); + RAND_bytes(rnd, sizeof(rnd)); + s->srp_ctx.a = BN_bin2bn(rnd, sizeof(rnd), s->srp_ctx.a); + OPENSSL_cleanse(rnd, sizeof(rnd)); - if (!(s->srp_ctx.A = SRP_Calc_A(s->srp_ctx.a,s->srp_ctx.N,s->srp_ctx.g))) - return -1; + if (! + (s->srp_ctx.A = SRP_Calc_A(s->srp_ctx.a, s->srp_ctx.N, s->srp_ctx.g))) + return -1; - return 1; - } + return 1; +} BIGNUM *SSL_get_srp_g(SSL *s) - { - if (s->srp_ctx.g != NULL) - return s->srp_ctx.g; - return s->ctx->srp_ctx.g; - } +{ + if (s->srp_ctx.g != NULL) + return s->srp_ctx.g; + return s->ctx->srp_ctx.g; +} BIGNUM *SSL_get_srp_N(SSL *s) - { - if (s->srp_ctx.N != NULL) - return s->srp_ctx.N; - return s->ctx->srp_ctx.N; - } +{ + if (s->srp_ctx.N != NULL) + return s->srp_ctx.N; + return s->ctx->srp_ctx.N; +} char *SSL_get_srp_username(SSL *s) - { - if (s->srp_ctx.login != NULL) - return s->srp_ctx.login; - return s->ctx->srp_ctx.login; - } +{ + if (s->srp_ctx.login != NULL) + return s->srp_ctx.login; + return s->ctx->srp_ctx.login; +} char *SSL_get_srp_userinfo(SSL *s) - { - if (s->srp_ctx.info != NULL) - return s->srp_ctx.info; - return s->ctx->srp_ctx.info; - } +{ + if (s->srp_ctx.info != NULL) + return s->srp_ctx.info; + return s->ctx->srp_ctx.info; +} -#define tls1_ctx_ctrl ssl3_ctx_ctrl -#define tls1_ctx_callback_ctrl ssl3_ctx_callback_ctrl +# define tls1_ctx_ctrl ssl3_ctx_ctrl +# define tls1_ctx_callback_ctrl ssl3_ctx_callback_ctrl -int SSL_CTX_set_srp_username(SSL_CTX *ctx,char *name) - { - return tls1_ctx_ctrl(ctx,SSL_CTRL_SET_TLS_EXT_SRP_USERNAME,0,name); - } +int SSL_CTX_set_srp_username(SSL_CTX *ctx, char *name) +{ + return tls1_ctx_ctrl(ctx, SSL_CTRL_SET_TLS_EXT_SRP_USERNAME, 0, name); +} -int SSL_CTX_set_srp_password(SSL_CTX *ctx,char *password) - { - return tls1_ctx_ctrl(ctx,SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD,0,password); - } +int SSL_CTX_set_srp_password(SSL_CTX *ctx, char *password) +{ + return tls1_ctx_ctrl(ctx, SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD, 0, password); +} int SSL_CTX_set_srp_strength(SSL_CTX *ctx, int strength) - { - return tls1_ctx_ctrl(ctx, SSL_CTRL_SET_TLS_EXT_SRP_STRENGTH, strength, - NULL); - } - -int SSL_CTX_set_srp_verify_param_callback(SSL_CTX *ctx, int (*cb)(SSL *,void *)) - { - return tls1_ctx_callback_ctrl(ctx,SSL_CTRL_SET_SRP_VERIFY_PARAM_CB, - (void (*)(void))cb); - } +{ + return tls1_ctx_ctrl(ctx, SSL_CTRL_SET_TLS_EXT_SRP_STRENGTH, strength, + NULL); +} + +int SSL_CTX_set_srp_verify_param_callback(SSL_CTX *ctx, + int (*cb) (SSL *, void *)) +{ + return tls1_ctx_callback_ctrl(ctx, SSL_CTRL_SET_SRP_VERIFY_PARAM_CB, + (void (*)(void))cb); +} int SSL_CTX_set_srp_cb_arg(SSL_CTX *ctx, void *arg) - { - return tls1_ctx_ctrl(ctx,SSL_CTRL_SET_SRP_ARG,0,arg); - } +{ + return tls1_ctx_ctrl(ctx, SSL_CTRL_SET_SRP_ARG, 0, arg); +} int SSL_CTX_set_srp_username_callback(SSL_CTX *ctx, - int (*cb)(SSL *,int *,void *)) - { - return tls1_ctx_callback_ctrl(ctx,SSL_CTRL_SET_TLS_EXT_SRP_USERNAME_CB, - (void (*)(void))cb); - } - -int SSL_CTX_set_srp_client_pwd_callback(SSL_CTX *ctx, char *(*cb)(SSL *,void *)) - { - return tls1_ctx_callback_ctrl(ctx,SSL_CTRL_SET_SRP_GIVE_CLIENT_PWD_CB, - (void (*)(void))cb); - } + int (*cb) (SSL *, int *, void *)) +{ + return tls1_ctx_callback_ctrl(ctx, SSL_CTRL_SET_TLS_EXT_SRP_USERNAME_CB, + (void (*)(void))cb); +} + +int SSL_CTX_set_srp_client_pwd_callback(SSL_CTX *ctx, + char *(*cb) (SSL *, void *)) +{ + return tls1_ctx_callback_ctrl(ctx, SSL_CTRL_SET_SRP_GIVE_CLIENT_PWD_CB, + (void (*)(void))cb); +} #endif |