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authorParménides GV <parmegv@sdf.org>2015-06-04 19:20:15 +0200
committerParménides GV <parmegv@sdf.org>2015-06-04 19:20:15 +0200
commit27594eeae6f40a402bc3110f06d57975168e74e3 (patch)
treecdabf6571e6f4ff07205fd6921d8095539a1fcdc /app/openssl/ssl/tls_srp.c
parent8dc4f58d96892fbfd83094fb85b1d17656035290 (diff)
ics-openvpn as a submodule! beautiful
ics-openvpn is now officially on GitHub, and they track openssl and openvpn as submodules, so it's easier to update everything. Just a git submodule update --recursive. I've also set up soft links to native modules from ics-openvpn in app, so that we don't copy files in Gradle (which was causing problems with the submodules .git* files, not being copied). That makes the repo cleaner.
Diffstat (limited to 'app/openssl/ssl/tls_srp.c')
-rw-r--r--app/openssl/ssl/tls_srp.c533
1 files changed, 0 insertions, 533 deletions
diff --git a/app/openssl/ssl/tls_srp.c b/app/openssl/ssl/tls_srp.c
deleted file mode 100644
index e7368a8f..00000000
--- a/app/openssl/ssl/tls_srp.c
+++ /dev/null
@@ -1,533 +0,0 @@
-/* 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.
- */
-/* ====================================================================
- * Copyright (c) 2004-2011 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * 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
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-#include "ssl_locl.h"
-#ifndef OPENSSL_NO_SRP
-
-#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);
- }
-
-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);
- }
-
-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);
- }
-
-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);
- }
-
-/* 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;
- }
-
-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;
- }
-
-/* 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_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;
- }
-
-
-int SRP_Calc_A_param(SSL *s)
- {
- 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));
-
- if (!(s->srp_ctx.A = SRP_Calc_A(s->srp_ctx.a,s->srp_ctx.N,s->srp_ctx.g)))
- 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;
- }
-
-BIGNUM *SSL_get_srp_N(SSL *s)
- {
- 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;
- }
-
-char *SSL_get_srp_userinfo(SSL *s)
- {
- 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
-
-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_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);
- }
-
-int SSL_CTX_set_srp_cb_arg(SSL_CTX *ctx, void *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);
- }
-
-#endif