From 15272ab4ed1e6250412fccd48200ed9eae59608f Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 29 Mar 2010 17:08:02 +0000 Subject: Updated to openssl 1.0.0 --- openssl/crypto/dh/dh_ameth.c | 500 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 500 insertions(+) create mode 100644 openssl/crypto/dh/dh_ameth.c (limited to 'openssl/crypto/dh/dh_ameth.c') diff --git a/openssl/crypto/dh/dh_ameth.c b/openssl/crypto/dh/dh_ameth.c new file mode 100644 index 000000000..377caf96c --- /dev/null +++ b/openssl/crypto/dh/dh_ameth.c @@ -0,0 +1,500 @@ +/* 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 +#include "cryptlib.h" +#include +#include +#include +#include +#include "asn1_locl.h" + +static void int_dh_free(EVP_PKEY *pkey) + { + DH_free(pkey->pkey.dh); + } + +static int dh_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; + + DH *dh = 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) + { + DHerr(DH_F_DH_PUB_DECODE, DH_R_PARAMETER_ENCODING_ERROR); + goto err; + } + + pstr = pval; + pm = pstr->data; + pmlen = pstr->length; + + if (!(dh = d2i_DHparams(NULL, &pm, pmlen))) + { + DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR); + goto err; + } + + if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen))) + { + DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR); + goto err; + } + + /* We have parameters now set public key */ + if (!(dh->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) + { + DHerr(DH_F_DH_PUB_DECODE, DH_R_BN_DECODE_ERROR); + goto err; + } + + ASN1_INTEGER_free(public_key); + EVP_PKEY_assign_DH(pkey, dh); + return 1; + + err: + if (public_key) + ASN1_INTEGER_free(public_key); + if (dh) + DH_free(dh); + return 0; + + } + +static int dh_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) + { + DH *dh; + void *pval = NULL; + int ptype; + unsigned char *penc = NULL; + int penclen; + ASN1_STRING *str; + ASN1_INTEGER *pub_key = NULL; + + dh=pkey->pkey.dh; + + str = ASN1_STRING_new(); + str->length = i2d_DHparams(dh, &str->data); + if (str->length <= 0) + { + DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE); + goto err; + } + pval = str; + ptype = V_ASN1_SEQUENCE; + + pub_key = BN_to_ASN1_INTEGER(dh->pub_key, NULL); + if (!pub_key) + goto err; + + penclen = i2d_ASN1_INTEGER(pub_key, &penc); + + ASN1_INTEGER_free(pub_key); + + if (penclen <= 0) + { + DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_DH), + ptype, pval, penc, penclen)) + return 1; + + err: + if (penc) + OPENSSL_free(penc); + if (pval) + ASN1_STRING_free(pval); + + return 0; + } + + +/* PKCS#8 DH is defined in PKCS#11 of all places. It is similar to DH in + * that the AlgorithmIdentifier contains the paramaters, the private key + * is explcitly included and the pubkey must be recalculated. + */ + +static int dh_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; + + DH *dh = NULL; + + if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8)) + return 0; + + X509_ALGOR_get0(NULL, &ptype, &pval, palg); + + if (ptype != V_ASN1_SEQUENCE) + goto decerr; + + if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen))) + goto decerr; + + + pstr = pval; + pm = pstr->data; + pmlen = pstr->length; + if (!(dh = d2i_DHparams(NULL, &pm, pmlen))) + goto decerr; + /* We have parameters now set private key */ + if (!(dh->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) + { + DHerr(DH_F_DH_PRIV_DECODE,DH_R_BN_ERROR); + goto dherr; + } + /* Calculate public key */ + if (!DH_generate_key(dh)) + goto dherr; + + EVP_PKEY_assign_DH(pkey, dh); + + ASN1_INTEGER_free(privkey); + + return 1; + + decerr: + DHerr(DH_F_DH_PRIV_DECODE, EVP_R_DECODE_ERROR); + dherr: + DH_free(dh); + return 0; + } + +static int dh_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) + { + DHerr(DH_F_DH_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); + goto err; + } + + params->length = i2d_DHparams(pkey->pkey.dh, ¶ms->data); + if (params->length <= 0) + { + DHerr(DH_F_DH_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.dh->priv_key, NULL); + + if (!prkey) + { + DHerr(DH_F_DH_PRIV_ENCODE,DH_R_BN_ERROR); + goto err; + } + + dplen = i2d_ASN1_INTEGER(prkey, &dp); + + ASN1_INTEGER_free(prkey); + + if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dhKeyAgreement), 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 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 dh_param_decode(EVP_PKEY *pkey, + const unsigned char **pder, int derlen) + { + DH *dh; + if (!(dh = d2i_DHparams(NULL, pder, derlen))) + { + DHerr(DH_F_DH_PARAM_DECODE, ERR_R_DH_LIB); + return 0; + } + EVP_PKEY_assign_DH(pkey, dh); + return 1; + } + +static int dh_param_encode(const EVP_PKEY *pkey, unsigned char **pder) + { + return i2d_DHparams(pkey->pkey.dh, pder); + } + +static int do_dh_print(BIO *bp, const DH *x, int indent, + ASN1_PCTX *ctx, int ptype) + { + unsigned char *m=NULL; + int reason=ERR_R_BUF_LIB,ret=0; + size_t buf_len=0; + + const char *ktype = NULL; + + 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; + + update_buflen(x->p, &buf_len); + + if (buf_len == 0) + { + reason = ERR_R_PASSED_NULL_PARAMETER; + goto err; + } + + update_buflen(x->g, &buf_len); + update_buflen(pub_key, &buf_len); + update_buflen(priv_key, &buf_len); + + if (ptype == 2) + ktype = "PKCS#3 DH Private-Key"; + else if (ptype == 1) + ktype = "PKCS#3 DH Public-Key"; + else + ktype = "PKCS#3 DH Parameters"; + + m= OPENSSL_malloc(buf_len+10); + if (m == NULL) + { + reason=ERR_R_MALLOC_FAILURE; + goto err; + } + + BIO_indent(bp, indent, 128); + if (BIO_printf(bp,"%s: (%d bit)\n", ktype, BN_num_bits(x->p)) <= 0) + goto err; + indent += 4; + + if (!ASN1_bn_print(bp,"private-key:",priv_key,m,indent)) goto err; + if (!ASN1_bn_print(bp,"public-key:",pub_key,m,indent)) goto err; + + if (!ASN1_bn_print(bp,"prime:",x->p,m,indent)) goto err; + if (!ASN1_bn_print(bp,"generator:",x->g,m,indent)) goto err; + if (x->length != 0) + { + BIO_indent(bp, indent, 128); + if (BIO_printf(bp,"recommended-private-length: %d bits\n", + (int)x->length) <= 0) goto err; + } + + + ret=1; + if (0) + { +err: + DHerr(DH_F_DO_DH_PRINT,reason); + } + if (m != NULL) OPENSSL_free(m); + return(ret); + } + +static int int_dh_size(const EVP_PKEY *pkey) + { + return(DH_size(pkey->pkey.dh)); + } + +static int dh_bits(const EVP_PKEY *pkey) + { + return BN_num_bits(pkey->pkey.dh->p); + } + +static int dh_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) + { + if ( BN_cmp(a->pkey.dh->p,b->pkey.dh->p) || + BN_cmp(a->pkey.dh->g,b->pkey.dh->g)) + return 0; + else + return 1; + } + +static int dh_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) + { + BIGNUM *a; + + if ((a=BN_dup(from->pkey.dh->p)) == NULL) + return 0; + if (to->pkey.dh->p != NULL) + BN_free(to->pkey.dh->p); + to->pkey.dh->p=a; + + if ((a=BN_dup(from->pkey.dh->g)) == NULL) + return 0; + if (to->pkey.dh->g != NULL) + BN_free(to->pkey.dh->g); + to->pkey.dh->g=a; + + return 1; + } + +static int dh_missing_parameters(const EVP_PKEY *a) + { + if (!a->pkey.dh->p || !a->pkey.dh->g) + return 1; + return 0; + } + +static int dh_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) + { + if (dh_cmp_parameters(a, b) == 0) + return 0; + if (BN_cmp(b->pkey.dh->pub_key,a->pkey.dh->pub_key) != 0) + return 0; + else + return 1; + } + +static int dh_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 0); + } + +static int dh_public_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 1); + } + +static int dh_private_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 2); + } + +int DHparams_print(BIO *bp, const DH *x) + { + return do_dh_print(bp, x, 4, NULL, 0); + } + +const EVP_PKEY_ASN1_METHOD dh_asn1_meth = + { + EVP_PKEY_DH, + EVP_PKEY_DH, + 0, + + "DH", + "OpenSSL PKCS#3 DH method", + + dh_pub_decode, + dh_pub_encode, + dh_pub_cmp, + dh_public_print, + + dh_priv_decode, + dh_priv_encode, + dh_private_print, + + int_dh_size, + dh_bits, + + dh_param_decode, + dh_param_encode, + dh_missing_parameters, + dh_copy_parameters, + dh_cmp_parameters, + dh_param_print, + + int_dh_free, + 0 + }; + -- cgit v1.2.3