mirror of
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e077455e9e
Since OPENSSL_malloc() and friends report ERR_R_MALLOC_FAILURE, and
at least handle the file name and line number they are called from,
there's no need to report ERR_R_MALLOC_FAILURE where they are called
directly, or when SSLfatal() and RLAYERfatal() is used, the reason
`ERR_R_MALLOC_FAILURE` is changed to `ERR_R_CRYPTO_LIB`.
There were a number of places where `ERR_R_MALLOC_FAILURE` was reported
even though it was a function from a different sub-system that was
called. Those places are changed to report ERR_R_{lib}_LIB, where
{lib} is the name of that sub-system.
Some of them are tricky to get right, as we have a lot of functions
that belong in the ASN1 sub-system, and all the `sk_` calls or from
the CRYPTO sub-system.
Some extra adaptation was necessary where there were custom OPENSSL_malloc()
wrappers, and some bugs are fixed alongside these changes.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19301)
119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
/*
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* Copyright 2002-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* ECDSA low level APIs are deprecated for public use, but still ok for
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* internal use.
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*/
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#include "internal/deprecated.h"
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#include "ec_local.h"
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#include <openssl/err.h>
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int EC_GROUP_check_named_curve(const EC_GROUP *group, int nist_only,
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BN_CTX *ctx)
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{
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int nid;
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BN_CTX *new_ctx = NULL;
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if (group == NULL) {
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ERR_raise(ERR_LIB_EC, ERR_R_PASSED_NULL_PARAMETER);
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return NID_undef;
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}
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if (ctx == NULL) {
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ctx = new_ctx = BN_CTX_new_ex(NULL);
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if (ctx == NULL) {
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ERR_raise(ERR_LIB_EC, ERR_R_BN_LIB);
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return NID_undef;
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}
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}
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nid = ossl_ec_curve_nid_from_params(group, ctx);
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if (nid > 0 && nist_only && EC_curve_nid2nist(nid) == NULL)
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nid = NID_undef;
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BN_CTX_free(new_ctx);
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return nid;
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}
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int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx)
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{
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#ifdef FIPS_MODULE
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/*
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* ECC domain parameter validation.
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* See SP800-56A R3 5.5.2 "Assurances of Domain-Parameter Validity" Part 1b.
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*/
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return EC_GROUP_check_named_curve(group, 1, ctx) >= 0 ? 1 : 0;
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#else
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int ret = 0;
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const BIGNUM *order;
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BN_CTX *new_ctx = NULL;
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EC_POINT *point = NULL;
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if (group == NULL || group->meth == NULL) {
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ERR_raise(ERR_LIB_EC, ERR_R_PASSED_NULL_PARAMETER);
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return 0;
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}
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/* Custom curves assumed to be correct */
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if ((group->meth->flags & EC_FLAGS_CUSTOM_CURVE) != 0)
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return 1;
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if (ctx == NULL) {
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ctx = new_ctx = BN_CTX_new();
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if (ctx == NULL) {
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ERR_raise(ERR_LIB_EC, ERR_R_BN_LIB);
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goto err;
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}
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}
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/* check the discriminant */
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if (!EC_GROUP_check_discriminant(group, ctx)) {
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ERR_raise(ERR_LIB_EC, EC_R_DISCRIMINANT_IS_ZERO);
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goto err;
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}
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/* check the generator */
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if (group->generator == NULL) {
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ERR_raise(ERR_LIB_EC, EC_R_UNDEFINED_GENERATOR);
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goto err;
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}
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if (EC_POINT_is_on_curve(group, group->generator, ctx) <= 0) {
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ERR_raise(ERR_LIB_EC, EC_R_POINT_IS_NOT_ON_CURVE);
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goto err;
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}
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/* check the order of the generator */
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if ((point = EC_POINT_new(group)) == NULL)
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goto err;
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order = EC_GROUP_get0_order(group);
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if (order == NULL)
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goto err;
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if (BN_is_zero(order)) {
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ERR_raise(ERR_LIB_EC, EC_R_UNDEFINED_ORDER);
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goto err;
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}
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if (!EC_POINT_mul(group, point, order, NULL, NULL, ctx))
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goto err;
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if (!EC_POINT_is_at_infinity(group, point)) {
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ERR_raise(ERR_LIB_EC, EC_R_INVALID_GROUP_ORDER);
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goto err;
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}
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ret = 1;
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err:
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BN_CTX_free(new_ctx);
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EC_POINT_free(point);
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return ret;
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#endif /* FIPS_MODULE */
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}
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