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| author | markus <> | 2002-09-05 12:51:50 +0000 |
|---|---|---|
| committer | markus <> | 2002-09-05 12:51:50 +0000 |
| commit | 15b5d84f9da2ce4bfae8580e56e34a859f74ad71 (patch) | |
| tree | bf939e82d7fd73cc8a01cf6959002209972091bc /src/lib/libcrypto/dsa/dsa_asn1.c | |
| parent | 027351f729b9e837200dae6e1520cda6577ab930 (diff) | |
| download | openbsd-15b5d84f9da2ce4bfae8580e56e34a859f74ad71.tar.gz openbsd-15b5d84f9da2ce4bfae8580e56e34a859f74ad71.tar.bz2 openbsd-15b5d84f9da2ce4bfae8580e56e34a859f74ad71.zip | |
import openssl-0.9.7-beta1
Diffstat (limited to 'src/lib/libcrypto/dsa/dsa_asn1.c')
| -rw-r--r-- | src/lib/libcrypto/dsa/dsa_asn1.c | 200 |
1 files changed, 122 insertions, 78 deletions
diff --git a/src/lib/libcrypto/dsa/dsa_asn1.c b/src/lib/libcrypto/dsa/dsa_asn1.c index 7523b21654..23fce555aa 100644 --- a/src/lib/libcrypto/dsa/dsa_asn1.c +++ b/src/lib/libcrypto/dsa/dsa_asn1.c | |||
| @@ -1,96 +1,140 @@ | |||
| 1 | /* crypto/dsa/dsa_asn1.c */ | 1 | /* dsa_asn1.c */ |
| 2 | /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL | ||
| 3 | * project 2000. | ||
| 4 | */ | ||
| 5 | /* ==================================================================== | ||
| 6 | * Copyright (c) 2000 The OpenSSL Project. All rights reserved. | ||
| 7 | * | ||
| 8 | * Redistribution and use in source and binary forms, with or without | ||
| 9 | * modification, are permitted provided that the following conditions | ||
| 10 | * are met: | ||
| 11 | * | ||
| 12 | * 1. Redistributions of source code must retain the above copyright | ||
| 13 | * notice, this list of conditions and the following disclaimer. | ||
| 14 | * | ||
| 15 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 16 | * notice, this list of conditions and the following disclaimer in | ||
| 17 | * the documentation and/or other materials provided with the | ||
| 18 | * distribution. | ||
| 19 | * | ||
| 20 | * 3. All advertising materials mentioning features or use of this | ||
| 21 | * software must display the following acknowledgment: | ||
| 22 | * "This product includes software developed by the OpenSSL Project | ||
| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | ||
| 24 | * | ||
| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 26 | * endorse or promote products derived from this software without | ||
| 27 | * prior written permission. For written permission, please contact | ||
| 28 | * licensing@OpenSSL.org. | ||
| 29 | * | ||
| 30 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 31 | * nor may "OpenSSL" appear in their names without prior written | ||
| 32 | * permission of the OpenSSL Project. | ||
| 33 | * | ||
| 34 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 35 | * acknowledgment: | ||
| 36 | * "This product includes software developed by the OpenSSL Project | ||
| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | ||
| 38 | * | ||
| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 51 | * ==================================================================== | ||
| 52 | * | ||
| 53 | * This product includes cryptographic software written by Eric Young | ||
| 54 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 55 | * Hudson (tjh@cryptsoft.com). | ||
| 56 | * | ||
| 57 | */ | ||
| 2 | 58 | ||
| 3 | #include <stdio.h> | 59 | #include <stdio.h> |
| 4 | #include "cryptlib.h" | 60 | #include "cryptlib.h" |
| 5 | #include <openssl/dsa.h> | 61 | #include <openssl/dsa.h> |
| 6 | #include <openssl/asn1.h> | 62 | #include <openssl/asn1.h> |
| 7 | #include <openssl/asn1_mac.h> | 63 | #include <openssl/asn1t.h> |
| 8 | 64 | ||
| 9 | DSA_SIG *DSA_SIG_new(void) | 65 | /* Override the default new methods */ |
| 66 | static int sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) | ||
| 10 | { | 67 | { |
| 11 | DSA_SIG *ret; | 68 | if(operation == ASN1_OP_NEW_PRE) { |
| 12 | 69 | DSA_SIG *sig; | |
| 13 | ret = Malloc(sizeof(DSA_SIG)); | 70 | sig = OPENSSL_malloc(sizeof(DSA_SIG)); |
| 14 | if (ret == NULL) | 71 | sig->r = NULL; |
| 15 | { | 72 | sig->s = NULL; |
| 16 | DSAerr(DSA_F_DSA_SIG_NEW,ERR_R_MALLOC_FAILURE); | 73 | *pval = (ASN1_VALUE *)sig; |
| 17 | return(NULL); | 74 | if(sig) return 2; |
| 18 | } | 75 | DSAerr(DSA_F_SIG_CB, ERR_R_MALLOC_FAILURE); |
| 19 | ret->r = NULL; | 76 | return 0; |
| 20 | ret->s = NULL; | 77 | } |
| 21 | return(ret); | 78 | return 1; |
| 22 | } | 79 | } |
| 23 | 80 | ||
| 24 | void DSA_SIG_free(DSA_SIG *r) | 81 | ASN1_SEQUENCE_cb(DSA_SIG, sig_cb) = { |
| 82 | ASN1_SIMPLE(DSA_SIG, r, CBIGNUM), | ||
| 83 | ASN1_SIMPLE(DSA_SIG, s, CBIGNUM) | ||
| 84 | } ASN1_SEQUENCE_END_cb(DSA_SIG, DSA_SIG) | ||
| 85 | |||
| 86 | IMPLEMENT_ASN1_FUNCTIONS_const(DSA_SIG) | ||
| 87 | |||
| 88 | /* Override the default free and new methods */ | ||
| 89 | static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) | ||
| 25 | { | 90 | { |
| 26 | if (r == NULL) return; | 91 | if(operation == ASN1_OP_NEW_PRE) { |
| 27 | if (r->r) BN_clear_free(r->r); | 92 | *pval = (ASN1_VALUE *)DSA_new(); |
| 28 | if (r->s) BN_clear_free(r->s); | 93 | if(*pval) return 2; |
| 29 | Free(r); | 94 | return 0; |
| 95 | } else if(operation == ASN1_OP_FREE_PRE) { | ||
| 96 | DSA_free((DSA *)*pval); | ||
| 97 | *pval = NULL; | ||
| 98 | return 2; | ||
| 99 | } | ||
| 100 | return 1; | ||
| 30 | } | 101 | } |
| 31 | 102 | ||
| 32 | int i2d_DSA_SIG(DSA_SIG *v, unsigned char **pp) | 103 | ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = { |
| 33 | { | 104 | ASN1_SIMPLE(DSA, version, LONG), |
| 34 | int t=0,len; | 105 | ASN1_SIMPLE(DSA, p, BIGNUM), |
| 35 | ASN1_INTEGER rbs,sbs; | 106 | ASN1_SIMPLE(DSA, q, BIGNUM), |
| 36 | unsigned char *p; | 107 | ASN1_SIMPLE(DSA, g, BIGNUM), |
| 108 | ASN1_SIMPLE(DSA, pub_key, BIGNUM), | ||
| 109 | ASN1_SIMPLE(DSA, priv_key, BIGNUM) | ||
| 110 | } ASN1_SEQUENCE_END_cb(DSA, DSAPrivateKey) | ||
| 37 | 111 | ||
| 38 | rbs.data=Malloc(BN_num_bits(v->r)/8+1); | 112 | IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPrivateKey, DSAPrivateKey) |
| 39 | if (rbs.data == NULL) | ||
| 40 | { | ||
| 41 | DSAerr(DSA_F_I2D_DSA_SIG, ERR_R_MALLOC_FAILURE); | ||
| 42 | return(0); | ||
| 43 | } | ||
| 44 | rbs.type=V_ASN1_INTEGER; | ||
| 45 | rbs.length=BN_bn2bin(v->r,rbs.data); | ||
| 46 | sbs.data=Malloc(BN_num_bits(v->s)/8+1); | ||
| 47 | if (sbs.data == NULL) | ||
| 48 | { | ||
| 49 | Free(rbs.data); | ||
| 50 | DSAerr(DSA_F_I2D_DSA_SIG, ERR_R_MALLOC_FAILURE); | ||
| 51 | return(0); | ||
| 52 | } | ||
| 53 | sbs.type=V_ASN1_INTEGER; | ||
| 54 | sbs.length=BN_bn2bin(v->s,sbs.data); | ||
| 55 | 113 | ||
| 56 | len=i2d_ASN1_INTEGER(&rbs,NULL); | 114 | ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = { |
| 57 | len+=i2d_ASN1_INTEGER(&sbs,NULL); | 115 | ASN1_SIMPLE(DSA, p, BIGNUM), |
| 116 | ASN1_SIMPLE(DSA, q, BIGNUM), | ||
| 117 | ASN1_SIMPLE(DSA, g, BIGNUM), | ||
| 118 | } ASN1_SEQUENCE_END_cb(DSA, DSAparams) | ||
| 58 | 119 | ||
| 59 | if (pp) | 120 | IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAparams, DSAparams) |
| 60 | { | ||
| 61 | p=*pp; | ||
| 62 | ASN1_put_object(&p,1,len,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL); | ||
| 63 | i2d_ASN1_INTEGER(&rbs,&p); | ||
| 64 | i2d_ASN1_INTEGER(&sbs,&p); | ||
| 65 | } | ||
| 66 | t=ASN1_object_size(1,len,V_ASN1_SEQUENCE); | ||
| 67 | Free(rbs.data); | ||
| 68 | Free(sbs.data); | ||
| 69 | return(t); | ||
| 70 | } | ||
| 71 | 121 | ||
| 72 | DSA_SIG *d2i_DSA_SIG(DSA_SIG **a, unsigned char **pp, long length) | 122 | /* DSA public key is a bit trickier... its effectively a CHOICE type |
| 73 | { | 123 | * decided by a field called write_params which can either write out |
| 74 | int i=ERR_R_NESTED_ASN1_ERROR; | 124 | * just the public key as an INTEGER or the parameters and public key |
| 75 | ASN1_INTEGER *bs=NULL; | 125 | * in a SEQUENCE |
| 76 | M_ASN1_D2I_vars(a,DSA_SIG *,DSA_SIG_new); | 126 | */ |
| 77 | 127 | ||
| 78 | M_ASN1_D2I_Init(); | 128 | ASN1_SEQUENCE(dsa_pub_internal) = { |
| 79 | M_ASN1_D2I_start_sequence(); | 129 | ASN1_SIMPLE(DSA, pub_key, BIGNUM), |
| 80 | M_ASN1_D2I_get(bs,d2i_ASN1_INTEGER); | 130 | ASN1_SIMPLE(DSA, p, BIGNUM), |
| 81 | if ((ret->r=BN_bin2bn(bs->data,bs->length,ret->r)) == NULL) | 131 | ASN1_SIMPLE(DSA, q, BIGNUM), |
| 82 | goto err_bn; | 132 | ASN1_SIMPLE(DSA, g, BIGNUM) |
| 83 | M_ASN1_D2I_get(bs,d2i_ASN1_INTEGER); | 133 | } ASN1_SEQUENCE_END_name(DSA, dsa_pub_internal) |
| 84 | if ((ret->s=BN_bin2bn(bs->data,bs->length,ret->s)) == NULL) | ||
| 85 | goto err_bn; | ||
| 86 | ASN1_BIT_STRING_free(bs); | ||
| 87 | M_ASN1_D2I_Finish_2(a); | ||
| 88 | 134 | ||
| 89 | err_bn: | 135 | ASN1_CHOICE_cb(DSAPublicKey, dsa_cb) = { |
| 90 | i=ERR_R_BN_LIB; | 136 | ASN1_SIMPLE(DSA, pub_key, BIGNUM), |
| 91 | err: | 137 | ASN1_EX_COMBINE(0, 0, dsa_pub_internal) |
| 92 | DSAerr(DSA_F_D2I_DSA_SIG,i); | 138 | } ASN1_CHOICE_END_cb(DSA, DSAPublicKey, write_params) |
| 93 | if ((ret != NULL) && ((a == NULL) || (*a != ret))) DSA_SIG_free(ret); | 139 | |
| 94 | if (bs != NULL) ASN1_BIT_STRING_free(bs); | 140 | IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPublicKey, DSAPublicKey) |
| 95 | return(NULL); | ||
| 96 | } | ||
