-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 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).
+/*
+ * Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * DSA low level APIs are deprecated for public use, but still ok for
+ * internal use.
*/
+#include "internal/deprecated.h"
#include <stdio.h>
-#include "cryptlib.h"
#include <openssl/x509.h>
#include <openssl/asn1.h>
-#include <openssl/dsa.h>
#include <openssl/bn.h>
-#ifndef OPENSSL_NO_CMS
#include <openssl/cms.h>
-#endif
-#include "asn1_locl.h"
-
-static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
- {
- const unsigned char *p, *pm;
- int pklen, pmlen;
- int ptype;
- void *pval;
- ASN1_STRING *pstr;
- X509_ALGOR *palg;
- ASN1_INTEGER *public_key = NULL;
-
- DSA *dsa = NULL;
-
- if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
- return 0;
- X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
-
- if (ptype == V_ASN1_SEQUENCE)
- {
- pstr = pval;
- pm = pstr->data;
- pmlen = pstr->length;
-
- if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen)))
- {
- DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
- goto err;
- }
-
- }
- else if ((ptype == V_ASN1_NULL) || (ptype == V_ASN1_UNDEF))
- {
- if (!(dsa = DSA_new()))
- {
- DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- }
- else
- {
- DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_PARAMETER_ENCODING_ERROR);
- goto err;
- }
-
- if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen)))
- {
- DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
- goto err;
- }
-
- if (!(dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)))
- {
- DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR);
- goto err;
- }
-
- ASN1_INTEGER_free(public_key);
- EVP_PKEY_assign_DSA(pkey, dsa);
- return 1;
-
- err:
- if (public_key)
- ASN1_INTEGER_free(public_key);
- if (dsa)
- DSA_free(dsa);
- return 0;
-
- }
+#include <openssl/core_names.h>
+#include <openssl/param_build.h>
+#include "internal/cryptlib.h"
+#include "crypto/asn1.h"
+#include "crypto/dsa.h"
+#include "crypto/evp.h"
+#include "internal/ffc.h"
+#include "dsa_local.h"
+
+static int dsa_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey)
+{
+ const unsigned char *p, *pm;
+ int pklen, pmlen;
+ int ptype;
+ const void *pval;
+ const ASN1_STRING *pstr;
+ X509_ALGOR *palg;
+ ASN1_INTEGER *public_key = NULL;
+
+ DSA *dsa = NULL;
+
+ if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
+ return 0;
+ X509_ALGOR_get0(NULL, &ptype, &pval, palg);
+
+ if (ptype == V_ASN1_SEQUENCE) {
+ pstr = pval;
+ pm = pstr->data;
+ pmlen = pstr->length;
+
+ if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL) {
+ DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
+ goto err;
+ }
+
+ } else if ((ptype == V_ASN1_NULL) || (ptype == V_ASN1_UNDEF)) {
+ if ((dsa = DSA_new()) == NULL) {
+ DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ } else {
+ DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_PARAMETER_ENCODING_ERROR);
+ goto err;
+ }
+
+ if ((public_key = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL) {
+ DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
+ goto err;
+ }
+
+ if ((dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) {
+ DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR);
+ goto err;
+ }
+
+ dsa->dirty_cnt++;
+ ASN1_INTEGER_free(public_key);
+ EVP_PKEY_assign_DSA(pkey, dsa);
+ return 1;
+
+ err:
+ ASN1_INTEGER_free(public_key);
+ DSA_free(dsa);
+ return 0;
+
+}
static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
- {
- DSA *dsa;
- void *pval = NULL;
- int ptype;
- unsigned char *penc = NULL;
- int penclen;
-
- dsa=pkey->pkey.dsa;
- if (pkey->save_parameters && dsa->p && dsa->q && dsa->g)
- {
- ASN1_STRING *str;
- str = ASN1_STRING_new();
- str->length = i2d_DSAparams(dsa, &str->data);
- if (str->length <= 0)
- {
- DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- pval = str;
- ptype = V_ASN1_SEQUENCE;
- }
- else
- ptype = V_ASN1_UNDEF;
-
- dsa->write_params=0;
-
- penclen = i2d_DSAPublicKey(dsa, &penc);
-
- if (penclen <= 0)
- {
- DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_DSA),
- ptype, pval, penc, penclen))
- return 1;
-
- err:
- if (penc)
- OPENSSL_free(penc);
- if (pval)
- ASN1_STRING_free(pval);
-
- return 0;
- }
-
-/* In PKCS#8 DSA: you just get a private key integer and parameters in the
+{
+ DSA *dsa;
+ int ptype;
+ unsigned char *penc = NULL;
+ int penclen;
+ ASN1_STRING *str = NULL;
+ ASN1_INTEGER *pubint = NULL;
+ ASN1_OBJECT *aobj;
+
+ dsa = pkey->pkey.dsa;
+ if (pkey->save_parameters
+ && dsa->params.p != NULL
+ && dsa->params.q != NULL
+ && dsa->params.g != NULL) {
+ str = ASN1_STRING_new();
+ if (str == NULL) {
+ DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ str->length = i2d_DSAparams(dsa, &str->data);
+ if (str->length <= 0) {
+ DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ ptype = V_ASN1_SEQUENCE;
+ } else
+ ptype = V_ASN1_UNDEF;
+
+ pubint = BN_to_ASN1_INTEGER(dsa->pub_key, NULL);
+
+ if (pubint == NULL) {
+ DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ penclen = i2d_ASN1_INTEGER(pubint, &penc);
+ ASN1_INTEGER_free(pubint);
+
+ if (penclen <= 0) {
+ DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ aobj = OBJ_nid2obj(EVP_PKEY_DSA);
+ if (aobj == NULL)
+ goto err;
+
+ if (X509_PUBKEY_set0_param(pk, aobj, ptype, str, penc, penclen))
+ return 1;
+
+ err:
+ OPENSSL_free(penc);
+ ASN1_STRING_free(str);
+
+ return 0;
+}
+
+/*
+ * In PKCS#8 DSA: you just get a private key integer and parameters in the
* AlgorithmIdentifier the pubkey must be recalculated.
*/
-
-static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
- {
- const unsigned char *p, *pm;
- int pklen, pmlen;
- int ptype;
- void *pval;
- ASN1_STRING *pstr;
- X509_ALGOR *palg;
- ASN1_INTEGER *privkey = NULL;
- BN_CTX *ctx = NULL;
-
- STACK_OF(ASN1_TYPE) *ndsa = NULL;
- DSA *dsa = NULL;
-
- if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
- return 0;
- X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
- /* Check for broken DSA PKCS#8, UGH! */
- if (*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED))
- {
- ASN1_TYPE *t1, *t2;
- if(!(ndsa = d2i_ASN1_SEQUENCE_ANY(NULL, &p, pklen)));
- goto decerr;
- if (sk_ASN1_TYPE_num(ndsa) != 2)
- goto decerr;
- /* Handle Two broken types:
- * SEQUENCE {parameters, priv_key}
- * SEQUENCE {pub_key, priv_key}
- */
-
- t1 = sk_ASN1_TYPE_value(ndsa, 0);
- t2 = sk_ASN1_TYPE_value(ndsa, 1);
- if (t1->type == V_ASN1_SEQUENCE)
- {
- p8->broken = PKCS8_EMBEDDED_PARAM;
- pval = t1->value.ptr;
- }
- else if (ptype == V_ASN1_SEQUENCE)
- p8->broken = PKCS8_NS_DB;
- else
- goto decerr;
-
- if (t2->type != V_ASN1_INTEGER)
- goto decerr;
-
- privkey = t2->value.integer;
- }
- else
- {
- const unsigned char *q = p;
- if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen)))
- goto decerr;
- if (privkey->type == V_ASN1_NEG_INTEGER)
- {
- p8->broken = PKCS8_NEG_PRIVKEY;
- ASN1_INTEGER_free(privkey);
- if (!(privkey=d2i_ASN1_UINTEGER(NULL, &q, pklen)))
- goto decerr;
- }
- if (ptype != V_ASN1_SEQUENCE)
- goto decerr;
- }
-
- pstr = pval;
- pm = pstr->data;
- pmlen = pstr->length;
- if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen)))
- goto decerr;
- /* We have parameters now set private key */
- if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL)))
- {
- DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR);
- goto dsaerr;
- }
- /* Calculate public key */
- if (!(dsa->pub_key = BN_new()))
- {
- DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
- goto dsaerr;
- }
- if (!(ctx = BN_CTX_new()))
- {
- DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
- goto dsaerr;
- }
-
- if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx))
- {
- DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR);
- goto dsaerr;
- }
-
- EVP_PKEY_assign_DSA(pkey, dsa);
- BN_CTX_free (ctx);
- if(ndsa)
- sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
- else
- ASN1_INTEGER_free(privkey);
-
- return 1;
-
- decerr:
- DSAerr(DSA_F_DSA_PRIV_DECODE, EVP_R_DECODE_ERROR);
- dsaerr:
- BN_CTX_free (ctx);
- if (privkey)
- ASN1_INTEGER_free(privkey);
- sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
- DSA_free(dsa);
- return 0;
- }
-static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
+static int dsa_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)
{
- ASN1_STRING *params = NULL;
- ASN1_INTEGER *prkey = NULL;
- unsigned char *dp = NULL;
- int dplen;
-
- params = ASN1_STRING_new();
-
- if (!params)
- {
- DSAerr(DSA_F_DSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- params->length = i2d_DSAparams(pkey->pkey.dsa, ¶ms->data);
- if (params->length <= 0)
- {
- DSAerr(DSA_F_DSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- params->type = V_ASN1_SEQUENCE;
-
- /* Get private key into integer */
- prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL);
-
- if (!prkey)
- {
- DSAerr(DSA_F_DSA_PRIV_ENCODE,DSA_R_BN_ERROR);
- goto err;
- }
-
- dplen = i2d_ASN1_INTEGER(prkey, &dp);
-
- ASN1_INTEGER_free(prkey);
-
- if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0,
- V_ASN1_SEQUENCE, params, dp, dplen))
- goto err;
-
- return 1;
+ const unsigned char *p, *pm;
+ int pklen, pmlen;
+ int ptype;
+ const void *pval;
+ const ASN1_STRING *pstr;
+ const X509_ALGOR *palg;
+ ASN1_INTEGER *privkey = NULL;
+ BN_CTX *ctx = NULL;
+
+ DSA *dsa = NULL;
+
+ int ret = 0;
+
+ if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
+ return 0;
+ X509_ALGOR_get0(NULL, &ptype, &pval, palg);
+
+ if ((privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL)
+ goto decerr;
+ if (privkey->type == V_ASN1_NEG_INTEGER || ptype != V_ASN1_SEQUENCE)
+ goto decerr;
+
+ pstr = pval;
+ pm = pstr->data;
+ pmlen = pstr->length;
+ if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL)
+ goto decerr;
+ /* We have parameters now set private key */
+ if ((dsa->priv_key = BN_secure_new()) == NULL
+ || !ASN1_INTEGER_to_BN(privkey, dsa->priv_key)) {
+ DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR);
+ goto dsaerr;
+ }
+ /* Calculate public key */
+ if ((dsa->pub_key = BN_new()) == NULL) {
+ DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
+ goto dsaerr;
+ }
+ if ((ctx = BN_CTX_new()) == NULL) {
+ DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
+ goto dsaerr;
+ }
+
+ BN_set_flags(dsa->priv_key, BN_FLG_CONSTTIME);
+ if (!BN_mod_exp(dsa->pub_key, dsa->params.g, dsa->priv_key, dsa->params.p,
+ ctx)) {
+ DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR);
+ goto dsaerr;
+ }
+
+ dsa->dirty_cnt++;
+ EVP_PKEY_assign_DSA(pkey, dsa);
+
+ ret = 1;
+ goto done;
+
+ decerr:
+ DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_DECODE_ERROR);
+ dsaerr:
+ DSA_free(dsa);
+ done:
+ BN_CTX_free(ctx);
+ ASN1_STRING_clear_free(privkey);
+ return ret;
+}
-err:
- if (dp != NULL)
- OPENSSL_free(dp);
- if (params != NULL)
- ASN1_STRING_free(params);
- if (prkey != NULL)
- ASN1_INTEGER_free(prkey);
- return 0;
+static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
+{
+ ASN1_STRING *params = NULL;
+ ASN1_INTEGER *prkey = NULL;
+ unsigned char *dp = NULL;
+ int dplen;
+
+ if (pkey->pkey.dsa == NULL|| pkey->pkey.dsa->priv_key == NULL) {
+ DSAerr(DSA_F_DSA_PRIV_ENCODE, DSA_R_MISSING_PARAMETERS);
+ goto err;
+ }
+
+ params = ASN1_STRING_new();
+
+ if (params == NULL) {
+ DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ params->length = i2d_DSAparams(pkey->pkey.dsa, ¶ms->data);
+ if (params->length <= 0) {
+ DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ params->type = V_ASN1_SEQUENCE;
+
+ /* Get private key into integer */
+ prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL);
+
+ if (prkey == NULL) {
+ DSAerr(DSA_F_DSA_PRIV_ENCODE, DSA_R_BN_ERROR);
+ goto err;
+ }
+
+ dplen = i2d_ASN1_INTEGER(prkey, &dp);
+
+ ASN1_STRING_clear_free(prkey);
+ prkey = NULL;
+
+ if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0,
+ V_ASN1_SEQUENCE, params, dp, dplen))
+ goto err;
+
+ return 1;
+
+ err:
+ OPENSSL_free(dp);
+ ASN1_STRING_free(params);
+ ASN1_STRING_clear_free(prkey);
+ return 0;
}
static int int_dsa_size(const EVP_PKEY *pkey)
- {
- return(DSA_size(pkey->pkey.dsa));
- }
+{
+ return DSA_size(pkey->pkey.dsa);
+}
static int dsa_bits(const EVP_PKEY *pkey)
- {
- return BN_num_bits(pkey->pkey.dsa->p);
- }
+{
+ return DSA_bits(pkey->pkey.dsa);
+}
+
+static int dsa_security_bits(const EVP_PKEY *pkey)
+{
+ return DSA_security_bits(pkey->pkey.dsa);
+}
static int dsa_missing_parameters(const EVP_PKEY *pkey)
- {
- DSA *dsa;
- dsa=pkey->pkey.dsa;
- if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
- return 1;
- return 0;
- }
+{
+ DSA *dsa;
+ dsa = pkey->pkey.dsa;
+ return dsa == NULL
+ || dsa->params.p == NULL
+ || dsa->params.q == NULL
+ || dsa->params.g == NULL;
+}
static int dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
- {
- BIGNUM *a;
-
- if ((a=BN_dup(from->pkey.dsa->p)) == NULL)
- return 0;
- if (to->pkey.dsa->p != NULL)
- BN_free(to->pkey.dsa->p);
- to->pkey.dsa->p=a;
-
- if ((a=BN_dup(from->pkey.dsa->q)) == NULL)
- return 0;
- if (to->pkey.dsa->q != NULL)
- BN_free(to->pkey.dsa->q);
- to->pkey.dsa->q=a;
-
- if ((a=BN_dup(from->pkey.dsa->g)) == NULL)
- return 0;
- if (to->pkey.dsa->g != NULL)
- BN_free(to->pkey.dsa->g);
- to->pkey.dsa->g=a;
- return 1;
- }
+{
+ if (to->pkey.dsa == NULL) {
+ to->pkey.dsa = DSA_new();
+ if (to->pkey.dsa == NULL)
+ return 0;
+ }
+ if (!ffc_params_copy(&to->pkey.dsa->params, &from->pkey.dsa->params))
+ return 0;
+
+ to->pkey.dsa->dirty_cnt++;
+ return 1;
+}
static int dsa_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
- {
- if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) ||
- BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) ||
- BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
- return 0;
- else
- return 1;
- }
+{
+ return ffc_params_cmp(&a->pkey.dsa->params, &b->pkey.dsa->params, 1);
+}
static int dsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
- {
- if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0)
- return 0;
- else
- return 1;
- }
+{
+ return BN_cmp(b->pkey.dsa->pub_key, a->pkey.dsa->pub_key) == 0;
+}
static void int_dsa_free(EVP_PKEY *pkey)
- {
- DSA_free(pkey->pkey.dsa);
- }
-
-static void update_buflen(const BIGNUM *b, size_t *pbuflen)
- {
- size_t i;
- if (!b)
- return;
- if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
- *pbuflen = i;
- }
+{
+ DSA_free(pkey->pkey.dsa);
+}
static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype)
- {
- unsigned char *m=NULL;
- int ret=0;
- size_t buf_len=0;
- const char *ktype = NULL;
-
- const BIGNUM *priv_key, *pub_key;
-
- if (ptype == 2)
- priv_key = x->priv_key;
- else
- priv_key = NULL;
-
- if (ptype > 0)
- pub_key = x->pub_key;
- else
- pub_key = NULL;
-
- if (ptype == 2)
- ktype = "Private-Key";
- else if (ptype == 1)
- ktype = "Public-Key";
- else
- ktype = "DSA-Parameters";
-
- update_buflen(x->p, &buf_len);
- update_buflen(x->q, &buf_len);
- update_buflen(x->g, &buf_len);
- update_buflen(priv_key, &buf_len);
- update_buflen(pub_key, &buf_len);
-
- m=(unsigned char *)OPENSSL_malloc(buf_len+10);
- if (m == NULL)
- {
- DSAerr(DSA_F_DO_DSA_PRINT,ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (priv_key)
- {
- if(!BIO_indent(bp,off,128))
- goto err;
- if (BIO_printf(bp,"%s: (%d bit)\n",ktype, BN_num_bits(x->p))
- <= 0) goto err;
- }
-
- if (!ASN1_bn_print(bp,"priv:",priv_key,m,off))
- goto err;
- if (!ASN1_bn_print(bp,"pub: ",pub_key,m,off))
- goto err;
- if (!ASN1_bn_print(bp,"P: ",x->p,m,off)) goto err;
- if (!ASN1_bn_print(bp,"Q: ",x->q,m,off)) goto err;
- if (!ASN1_bn_print(bp,"G: ",x->g,m,off)) goto err;
- ret=1;
-err:
- if (m != NULL) OPENSSL_free(m);
- return(ret);
- }
+{
+ int ret = 0;
+ const char *ktype = NULL;
+ const BIGNUM *priv_key, *pub_key;
+ int mod_len = 0;
+
+ if (x->params.p != NULL)
+ mod_len = DSA_bits(x);
+
+ if (ptype == 2)
+ priv_key = x->priv_key;
+ else
+ priv_key = NULL;
+
+ if (ptype > 0)
+ pub_key = x->pub_key;
+ else
+ pub_key = NULL;
+
+ if (ptype == 2)
+ ktype = "Private-Key";
+ else if (ptype == 1)
+ ktype = "Public-Key";
+ else
+ ktype = "DSA-Parameters";
+
+ if (priv_key != NULL) {
+ if (!BIO_indent(bp, off, 128))
+ goto err;
+ if (BIO_printf(bp, "%s: (%d bit)\n", ktype, mod_len) <= 0)
+ goto err;
+ } else {
+ if (BIO_printf(bp, "Public-Key: (%d bit)\n", mod_len) <= 0)
+ goto err;
+ }
+
+ if (!ASN1_bn_print(bp, "priv:", priv_key, NULL, off))
+ goto err;
+ if (!ASN1_bn_print(bp, "pub: ", pub_key, NULL, off))
+ goto err;
+ if (!ffc_params_print(bp, &x->params, off))
+ goto err;
+ ret = 1;
+ err:
+ return ret;
+}
static int dsa_param_decode(EVP_PKEY *pkey,
- const unsigned char **pder, int derlen)
- {
- DSA *dsa;
- if (!(dsa = d2i_DSAparams(NULL, pder, derlen)))
- {
- DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB);
- return 0;
- }
- EVP_PKEY_assign_DSA(pkey, dsa);
- return 1;
- }
+ const unsigned char **pder, int derlen)
+{
+ DSA *dsa;
+
+ if ((dsa = d2i_DSAparams(NULL, pder, derlen)) == NULL) {
+ DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB);
+ return 0;
+ }
+ dsa->dirty_cnt++;
+ EVP_PKEY_assign_DSA(pkey, dsa);
+ return 1;
+}
static int dsa_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
- {
- return i2d_DSAparams(pkey->pkey.dsa, pder);
- }
+{
+ return i2d_DSAparams(pkey->pkey.dsa, pder);
+}
static int dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *ctx)
- {
- return do_dsa_print(bp, pkey->pkey.dsa, indent, 0);
- }
+ ASN1_PCTX *ctx)
+{
+ return do_dsa_print(bp, pkey->pkey.dsa, indent, 0);
+}
static int dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *ctx)
- {
- return do_dsa_print(bp, pkey->pkey.dsa, indent, 1);
- }
-
+ ASN1_PCTX *ctx)
+{
+ return do_dsa_print(bp, pkey->pkey.dsa, indent, 1);
+}
static int dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *ctx)
- {
- return do_dsa_print(bp, pkey->pkey.dsa, indent, 2);
- }
+ ASN1_PCTX *ctx)
+{
+ return do_dsa_print(bp, pkey->pkey.dsa, indent, 2);
+}
static int old_dsa_priv_decode(EVP_PKEY *pkey,
- const unsigned char **pder, int derlen)
- {
- DSA *dsa;
- if (!(dsa = d2i_DSAPrivateKey (NULL, pder, derlen)))
- {
- DSAerr(DSA_F_OLD_DSA_PRIV_DECODE, ERR_R_DSA_LIB);
- return 0;
- }
- EVP_PKEY_assign_DSA(pkey, dsa);
- return 1;
- }
+ const unsigned char **pder, int derlen)
+{
+ DSA *dsa;
+
+ if ((dsa = d2i_DSAPrivateKey(NULL, pder, derlen)) == NULL) {
+ DSAerr(DSA_F_OLD_DSA_PRIV_DECODE, ERR_R_DSA_LIB);
+ return 0;
+ }
+ dsa->dirty_cnt++;
+ EVP_PKEY_assign_DSA(pkey, dsa);
+ return 1;
+}
static int old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)
- {
- return i2d_DSAPrivateKey(pkey->pkey.dsa, pder);
- }
+{
+ return i2d_DSAPrivateKey(pkey->pkey.dsa, pder);
+}
+
+static int dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg,
+ const ASN1_STRING *sig, int indent, ASN1_PCTX *pctx)
+{
+ DSA_SIG *dsa_sig;
+ const unsigned char *p;
+
+ if (sig == NULL) {
+ if (BIO_puts(bp, "\n") <= 0)
+ return 0;
+ else
+ return 1;
+ }
+ p = sig->data;
+ dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length);
+ if (dsa_sig != NULL) {
+ int rv = 0;
+ const BIGNUM *r, *s;
+
+ DSA_SIG_get0(dsa_sig, &r, &s);
+
+ if (BIO_write(bp, "\n", 1) != 1)
+ goto err;
+
+ if (!ASN1_bn_print(bp, "r: ", r, NULL, indent))
+ goto err;
+ if (!ASN1_bn_print(bp, "s: ", s, NULL, indent))
+ goto err;
+ rv = 1;
+ err:
+ DSA_SIG_free(dsa_sig);
+ return rv;
+ }
+ if (BIO_puts(bp, "\n") <= 0)
+ return 0;
+ return X509_signature_dump(bp, sig, indent);
+}
static int dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
- {
- switch (op)
- {
- case ASN1_PKEY_CTRL_PKCS7_SIGN:
- if (arg1 == 0)
- {
- int snid, hnid;
- X509_ALGOR *alg1, *alg2;
- PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2);
- if (alg1 == NULL || alg1->algorithm == NULL)
- return -1;
- hnid = OBJ_obj2nid(alg1->algorithm);
- if (hnid == NID_undef)
- return -1;
- if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
- return -1;
- X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
- }
- return 1;
+{
+ switch (op) {
+ case ASN1_PKEY_CTRL_PKCS7_SIGN:
+ if (arg1 == 0) {
+ int snid, hnid;
+ X509_ALGOR *alg1, *alg2;
+ PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2);
+ if (alg1 == NULL || alg1->algorithm == NULL)
+ return -1;
+ hnid = OBJ_obj2nid(alg1->algorithm);
+ if (hnid == NID_undef)
+ return -1;
+ if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
+ return -1;
+ X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
+ }
+ return 1;
#ifndef OPENSSL_NO_CMS
- case ASN1_PKEY_CTRL_CMS_SIGN:
- if (arg1 == 0)
- {
- int snid, hnid;
- X509_ALGOR *alg1, *alg2;
- CMS_SignerInfo_get0_algs(arg2, NULL, NULL, &alg1, &alg2);
- if (alg1 == NULL || alg1->algorithm == NULL)
- return -1;
- hnid = OBJ_obj2nid(alg1->algorithm);
- if (hnid == NID_undef)
- return -1;
- if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
- return -1;
- X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
- }
- return 1;
+ case ASN1_PKEY_CTRL_CMS_SIGN:
+ if (arg1 == 0) {
+ int snid, hnid;
+ X509_ALGOR *alg1, *alg2;
+ CMS_SignerInfo_get0_algs(arg2, NULL, NULL, &alg1, &alg2);
+ if (alg1 == NULL || alg1->algorithm == NULL)
+ return -1;
+ hnid = OBJ_obj2nid(alg1->algorithm);
+ if (hnid == NID_undef)
+ return -1;
+ if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
+ return -1;
+ X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
+ }
+ return 1;
+
+ case ASN1_PKEY_CTRL_CMS_RI_TYPE:
+ *(int *)arg2 = CMS_RECIPINFO_NONE;
+ return 1;
#endif
- case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
- *(int *)arg2 = NID_sha1;
- return 2;
+ case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
+ *(int *)arg2 = NID_sha256;
+ return 1;
- default:
- return -2;
+ default:
+ return -2;
- }
+ }
- }
+}
-/* NB these are sorted in pkey_id order, lowest first */
+static size_t dsa_pkey_dirty_cnt(const EVP_PKEY *pkey)
+{
+ return pkey->pkey.dsa->dirty_cnt;
+}
+
+static int dsa_pkey_export_to(const EVP_PKEY *from, void *to_keydata,
+ EVP_KEYMGMT *to_keymgmt, OPENSSL_CTX *libctx,
+ const char *propq)
+{
+ DSA *dsa = from->pkey.dsa;
+ OSSL_PARAM_BLD *tmpl;
+ const BIGNUM *p = DSA_get0_p(dsa), *g = DSA_get0_g(dsa);
+ const BIGNUM *q = DSA_get0_q(dsa), *pub_key = DSA_get0_pub_key(dsa);
+ const BIGNUM *priv_key = DSA_get0_priv_key(dsa);
+ OSSL_PARAM *params;
+ int selection = 0;
+ int rv = 0;
+
+ /*
+ * If the DSA method is foreign, then we can't be sure of anything, and
+ * can therefore not export or pretend to export.
+ */
+ if (DSA_get_method(dsa) != DSA_OpenSSL())
+ return 0;
+
+ if (p == NULL || q == NULL || g == NULL)
+ return 0;
+
+ tmpl = OSSL_PARAM_BLD_new();
+ if (tmpl == NULL)
+ return 0;
+
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_P, p)
+ || !OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_Q, q)
+ || !OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_G, g))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS;
+ if (pub_key != NULL) {
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_PUB_KEY,
+ pub_key))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
+ }
+ if (priv_key != NULL) {
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_PRIV_KEY,
+ priv_key))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_PRIVATE_KEY;
+ }
+
+ if ((params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL)
+ goto err;
+
+ /* We export, the provider imports */
+ rv = evp_keymgmt_import(to_keymgmt, to_keydata, selection, params);
+
+ OSSL_PARAM_BLD_free_params(params);
+err:
+ OSSL_PARAM_BLD_free(tmpl);
+ return rv;
+}
-const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] =
- {
-
- {
- EVP_PKEY_DSA2,
- EVP_PKEY_DSA,
- ASN1_PKEY_ALIAS
- },
-
- {
- EVP_PKEY_DSA1,
- EVP_PKEY_DSA,
- ASN1_PKEY_ALIAS
- },
-
- {
- EVP_PKEY_DSA4,
- EVP_PKEY_DSA,
- ASN1_PKEY_ALIAS
- },
-
- {
- EVP_PKEY_DSA3,
- EVP_PKEY_DSA,
- ASN1_PKEY_ALIAS
- },
-
- {
- EVP_PKEY_DSA,
- EVP_PKEY_DSA,
- 0,
-
- "DSA",
- "OpenSSL DSA method",
-
- dsa_pub_decode,
- dsa_pub_encode,
- dsa_pub_cmp,
- dsa_pub_print,
-
- dsa_priv_decode,
- dsa_priv_encode,
- dsa_priv_print,
-
- int_dsa_size,
- dsa_bits,
-
- dsa_param_decode,
- dsa_param_encode,
- dsa_missing_parameters,
- dsa_copy_parameters,
- dsa_cmp_parameters,
- dsa_param_print,
-
- int_dsa_free,
- dsa_pkey_ctrl,
- old_dsa_priv_decode,
- old_dsa_priv_encode
- }
- };
+static int dsa_pkey_import_from(const OSSL_PARAM params[], void *vpctx)
+{
+ EVP_PKEY_CTX *pctx = vpctx;
+ EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(pctx);
+ DSA *dsa = dsa_new_with_ctx(pctx->libctx);
+
+ if (dsa == NULL) {
+ ERR_raise(ERR_LIB_DSA, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ if (!dsa_ffc_params_fromdata(dsa, params)
+ || !dsa_key_fromdata(dsa, params)
+ || !EVP_PKEY_assign_DSA(pkey, dsa)) {
+ DSA_free(dsa);
+ return 0;
+ }
+ return 1;
+}
+
+/* NB these are sorted in pkey_id order, lowest first */
+const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[5] = {
+
+ {
+ EVP_PKEY_DSA2,
+ EVP_PKEY_DSA,
+ ASN1_PKEY_ALIAS},
+
+ {
+ EVP_PKEY_DSA1,
+ EVP_PKEY_DSA,
+ ASN1_PKEY_ALIAS},
+
+ {
+ EVP_PKEY_DSA4,
+ EVP_PKEY_DSA,
+ ASN1_PKEY_ALIAS},
+
+ {
+ EVP_PKEY_DSA3,
+ EVP_PKEY_DSA,
+ ASN1_PKEY_ALIAS},
+
+ {
+ EVP_PKEY_DSA,
+ EVP_PKEY_DSA,
+ 0,
+
+ "DSA",
+ "OpenSSL DSA method",
+
+ dsa_pub_decode,
+ dsa_pub_encode,
+ dsa_pub_cmp,
+ dsa_pub_print,
+
+ dsa_priv_decode,
+ dsa_priv_encode,
+ dsa_priv_print,
+
+ int_dsa_size,
+ dsa_bits,
+ dsa_security_bits,
+
+ dsa_param_decode,
+ dsa_param_encode,
+ dsa_missing_parameters,
+ dsa_copy_parameters,
+ dsa_cmp_parameters,
+ dsa_param_print,
+ dsa_sig_print,
+
+ int_dsa_free,
+ dsa_pkey_ctrl,
+ old_dsa_priv_decode,
+ old_dsa_priv_encode,
+
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+
+ dsa_pkey_dirty_cnt,
+ dsa_pkey_export_to,
+ dsa_pkey_import_from
+ }
+};
projects / openssl.git / blobdiff