diff options
Diffstat (limited to 'openssl/crypto/dsa/dsa_ameth.c')
| -rw-r--r-- | openssl/crypto/dsa/dsa_ameth.c | 657 |
1 files changed, 0 insertions, 657 deletions
diff --git a/openssl/crypto/dsa/dsa_ameth.c b/openssl/crypto/dsa/dsa_ameth.c deleted file mode 100644 index 6413aae4..00000000 --- a/openssl/crypto/dsa/dsa_ameth.c +++ /dev/null @@ -1,657 +0,0 @@ -/* 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). - * - */ - -#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; - - } - -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 - * 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) -{ - 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; - -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 int_dsa_size(const EVP_PKEY *pkey) - { - return(DSA_size(pkey->pkey.dsa)); - } - -static int dsa_bits(const EVP_PKEY *pkey) - { - return BN_num_bits(pkey->pkey.dsa->p); - } - -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; - } - -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; - } - -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; - } - -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; - } - -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; - } - -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); - } - -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; - } - -static int dsa_param_encode(const EVP_PKEY *pkey, unsigned char **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); - } - -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); - } - - -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); - } - -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; - } - -static int old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) - { - return i2d_DSAPrivateKey(pkey->pkey.dsa, pder); - } - -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; -#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; -#endif - - case ASN1_PKEY_CTRL_DEFAULT_MD_NID: - *(int *)arg2 = NID_sha1; - return 2; - - default: - return -2; - - } - - } - -/* NB these are sorted in pkey_id order, lowest first */ - -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 - } - }; - |