diff options
Diffstat (limited to 'crypto/pkcs7/pk7_lib.c')
| -rw-r--r-- | crypto/pkcs7/pk7_lib.c | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/crypto/pkcs7/pk7_lib.c b/crypto/pkcs7/pk7_lib.c new file mode 100644 index 0000000000..aac133e639 --- /dev/null +++ b/crypto/pkcs7/pk7_lib.c @@ -0,0 +1,343 @@ +/* crypto/pkcs7/pk7_lib.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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 acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS 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 AUTHOR OR 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. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include "objects.h" +#include "x509.h" + +long PKCS7_ctrl(p7,cmd,larg,parg) +PKCS7 *p7; +int cmd; +long larg; +char *parg; + { + int nid; + long ret; + + nid=OBJ_obj2nid(p7->type); + + switch (cmd) + { + case PKCS7_OP_SET_DETACHED_SIGNATURE: + if (nid == NID_pkcs7_signed) + { + ret=p7->detached=(int)larg; + } + else + { + PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); + ret=0; + } + break; + case PKCS7_OP_GET_DETACHED_SIGNATURE: + if (nid == NID_pkcs7_signed) + { + ret=p7->detached; + } + else + { + PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); + ret=0; + } + + break; + default: + abort(); + } + return(ret); + } + +int PKCS7_content_new(p7,type) +PKCS7 *p7; +int type; + { + PKCS7 *ret=NULL; + + if ((ret=PKCS7_new()) == NULL) goto err; + if (!PKCS7_set_type(ret,type)) goto err; + if (!PKCS7_set_content(p7,ret)) goto err; + + return(1); +err: + if (ret != NULL) PKCS7_free(ret); + return(0); + } + +int PKCS7_set_content(p7,p7_data) +PKCS7 *p7; +PKCS7 *p7_data; + { + int i; + + i=OBJ_obj2nid(p7->type); + switch (i) + { + case NID_pkcs7_signed: + if (p7->d.sign->contents != NULL) + PKCS7_content_free(p7->d.sign->contents); + p7->d.sign->contents=p7_data; + break; + case NID_pkcs7_digest: + case NID_pkcs7_data: + case NID_pkcs7_enveloped: + case NID_pkcs7_signedAndEnveloped: + case NID_pkcs7_encrypted: + default: + PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE); + goto err; + } + return(1); +err: + return(0); + } + +int PKCS7_set_type(p7,type) +PKCS7 *p7; +int type; + { + ASN1_OBJECT *obj; + + PKCS7_content_free(p7); + obj=OBJ_nid2obj(type); /* will not fail */ + + switch (type) + { + case NID_pkcs7_signed: + p7->type=obj; + if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL) + goto err; + ASN1_INTEGER_set(p7->d.sign->version,1); + break; + case NID_pkcs7_data: + p7->type=obj; + if ((p7->d.data=ASN1_OCTET_STRING_new()) == NULL) + goto err; + break; + case NID_pkcs7_digest: + case NID_pkcs7_enveloped: + case NID_pkcs7_signedAndEnveloped: + case NID_pkcs7_encrypted: + default: + PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE); + goto err; + } + return(1); +err: + return(0); + } + +int PKCS7_add_signer(p7,psi) +PKCS7 *p7; +PKCS7_SIGNER_INFO *psi; + { + int i,j,nid; + X509_ALGOR *alg; + PKCS7_SIGNED *p7s; + + i=OBJ_obj2nid(p7->type); + if (i != NID_pkcs7_signed) + { + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + p7s=p7->d.sign; + + nid=OBJ_obj2nid(psi->digest_alg->algorithm); + + /* If the digest is not currently listed, add it */ + j=0; + for (i=0; i<sk_num(p7s->md_algs); i++) + { + alg=(X509_ALGOR *)sk_value(p7s->md_algs,i); + if (OBJ_obj2nid(alg->algorithm) == nid) + { + j=1; + break; + } + } + if (!j) /* we need to add another algorithm */ + { + alg=X509_ALGOR_new(); + alg->algorithm=OBJ_nid2obj(nid); + sk_push(p7s->md_algs,(char *)alg); + } + + sk_push(p7s->signer_info,(char *)psi); + return(1); + } + +int PKCS7_add_certificate(p7,x509) +PKCS7 *p7; +X509 *x509; + { + int i; + + i=OBJ_obj2nid(p7->type); + if (i != NID_pkcs7_signed) + { + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + if (p7->d.sign->cert == NULL) + p7->d.sign->cert=sk_new_null(); + CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509); + sk_push(p7->d.sign->cert,(char *)x509); + return(1); + } + +int PKCS7_add_crl(p7,crl) +PKCS7 *p7; +X509_CRL *crl; + { + int i; + i=OBJ_obj2nid(p7->type); + if (i != NID_pkcs7_signed) + { + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + if (p7->d.sign->crl == NULL) + p7->d.sign->crl=sk_new_null(); + + CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL); + sk_push(p7->d.sign->crl,(char *)crl); + return(1); + } + +int PKCS7_SIGNER_INFO_set(p7i,x509,pkey,dgst) +PKCS7_SIGNER_INFO *p7i; +X509 *x509; +EVP_PKEY *pkey; +EVP_MD *dgst; + { + /* We now need to add another PKCS7_SIGNER_INFO entry */ + ASN1_INTEGER_set(p7i->version,1); + X509_NAME_set(&p7i->issuer_and_serial->issuer, + X509_get_issuer_name(x509)); + + /* because ASN1_INTEGER_set is used to set a 'long' we will do + * things the ugly way. */ + ASN1_INTEGER_free(p7i->issuer_and_serial->serial); + p7i->issuer_and_serial->serial= + ASN1_INTEGER_dup(X509_get_serialNumber(x509)); + + /* lets keep the pkey around for a while */ + CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY); + p7i->pkey=pkey; + + /* Set the algorithms */ + p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst)); + p7i->digest_enc_alg->algorithm=OBJ_nid2obj(EVP_MD_pkey_type(dgst)); + +#if 1 + if (p7i->digest_enc_alg->parameter != NULL) + ASN1_TYPE_free(p7i->digest_enc_alg->parameter); + if ((p7i->digest_enc_alg->parameter=ASN1_TYPE_new()) == NULL) + goto err; + p7i->digest_enc_alg->parameter->type=V_ASN1_NULL; +#endif + + + return(1); +err: + return(0); + } + +PKCS7_SIGNER_INFO *PKCS7_add_signature(p7,x509,pkey,dgst) +PKCS7 *p7; +X509 *x509; +EVP_PKEY *pkey; +EVP_MD *dgst; + { + PKCS7_SIGNER_INFO *si; + + if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err; + if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err; + if (!PKCS7_add_signer(p7,si)) goto err; + return(si); +err: + return(NULL); + } + +STACK *PKCS7_get_signer_info(p7) +PKCS7 *p7; + { + if (PKCS7_type_is_signed(p7)) + { + return(p7->d.sign->signer_info); + } + else + return(NULL); + } + +X509 *PKCS7_cert_from_signer_info(p7,si) +PKCS7 *p7; +PKCS7_SIGNER_INFO *si; + { + if (PKCS7_type_is_signed(p7)) + return(X509_find_by_issuer_and_serial(p7->d.sign->cert, + si->issuer_and_serial->issuer, + si->issuer_and_serial->serial)); + else + return(NULL); + } + |