diff options
Diffstat (limited to 'openssl/crypto/pkcs7/pk7_lib.c')
| -rw-r--r-- | openssl/crypto/pkcs7/pk7_lib.c | 665 |
1 files changed, 665 insertions, 0 deletions
diff --git a/openssl/crypto/pkcs7/pk7_lib.c b/openssl/crypto/pkcs7/pk7_lib.c new file mode 100644 index 00000000..d411269b --- /dev/null +++ b/openssl/crypto/pkcs7/pk7_lib.c @@ -0,0 +1,665 @@ +/* crypto/pkcs7/pk7_lib.c */ +/* Copyright (C) 1995-1998 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 <openssl/objects.h> +#include <openssl/x509.h> +#include "asn1_locl.h" + +long PKCS7_ctrl(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; + if (ret && PKCS7_type_is_data(p7->d.sign->contents)) + { + ASN1_OCTET_STRING *os; + os=p7->d.sign->contents->d.data; + ASN1_OCTET_STRING_free(os); + p7->d.sign->contents->d.data = NULL; + } + } + 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) + { + if(!p7->d.sign || !p7->d.sign->contents->d.ptr) + ret = 1; + else ret = 0; + + p7->detached = ret; + } + else + { + PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); + ret=0; + } + + break; + default: + PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION); + ret=0; + } + return(ret); + } + +int PKCS7_content_new(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(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_free(p7->d.sign->contents); + p7->d.sign->contents=p7_data; + break; + case NID_pkcs7_digest: + if (p7->d.digest->contents != NULL) + PKCS7_free(p7->d.digest->contents); + p7->d.digest->contents=p7_data; + break; + 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(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; + if (!ASN1_INTEGER_set(p7->d.sign->version,1)) + { + PKCS7_SIGNED_free(p7->d.sign); + p7->d.sign=NULL; + goto err; + } + break; + case NID_pkcs7_data: + p7->type=obj; + if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL) + goto err; + break; + case NID_pkcs7_signedAndEnveloped: + p7->type=obj; + if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new()) + == NULL) goto err; + ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1); + if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1)) + goto err; + p7->d.signed_and_enveloped->enc_data->content_type + = OBJ_nid2obj(NID_pkcs7_data); + break; + case NID_pkcs7_enveloped: + p7->type=obj; + if ((p7->d.enveloped=PKCS7_ENVELOPE_new()) + == NULL) goto err; + if (!ASN1_INTEGER_set(p7->d.enveloped->version,0)) + goto err; + p7->d.enveloped->enc_data->content_type + = OBJ_nid2obj(NID_pkcs7_data); + break; + case NID_pkcs7_encrypted: + p7->type=obj; + if ((p7->d.encrypted=PKCS7_ENCRYPT_new()) + == NULL) goto err; + if (!ASN1_INTEGER_set(p7->d.encrypted->version,0)) + goto err; + p7->d.encrypted->enc_data->content_type + = OBJ_nid2obj(NID_pkcs7_data); + break; + + case NID_pkcs7_digest: + p7->type=obj; + if ((p7->d.digest=PKCS7_DIGEST_new()) + == NULL) goto err; + if (!ASN1_INTEGER_set(p7->d.digest->version,0)) + goto err; + break; + default: + PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE); + goto err; + } + return(1); +err: + return(0); + } + +int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other) + { + p7->type = OBJ_nid2obj(type); + p7->d.other = other; + return 1; + } + +int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi) + { + int i,j,nid; + X509_ALGOR *alg; + STACK_OF(PKCS7_SIGNER_INFO) *signer_sk; + STACK_OF(X509_ALGOR) *md_sk; + + i=OBJ_obj2nid(p7->type); + switch (i) + { + case NID_pkcs7_signed: + signer_sk= p7->d.sign->signer_info; + md_sk= p7->d.sign->md_algs; + break; + case NID_pkcs7_signedAndEnveloped: + signer_sk= p7->d.signed_and_enveloped->signer_info; + md_sk= p7->d.signed_and_enveloped->md_algs; + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + nid=OBJ_obj2nid(psi->digest_alg->algorithm); + + /* If the digest is not currently listed, add it */ + j=0; + for (i=0; i<sk_X509_ALGOR_num(md_sk); i++) + { + alg=sk_X509_ALGOR_value(md_sk,i); + if (OBJ_obj2nid(alg->algorithm) == nid) + { + j=1; + break; + } + } + if (!j) /* we need to add another algorithm */ + { + if(!(alg=X509_ALGOR_new()) + || !(alg->parameter = ASN1_TYPE_new())) + { + X509_ALGOR_free(alg); + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE); + return(0); + } + alg->algorithm=OBJ_nid2obj(nid); + alg->parameter->type = V_ASN1_NULL; + if (!sk_X509_ALGOR_push(md_sk,alg)) + { + X509_ALGOR_free(alg); + return 0; + } + } + + if (!sk_PKCS7_SIGNER_INFO_push(signer_sk,psi)) + return 0; + return(1); + } + +int PKCS7_add_certificate(PKCS7 *p7, X509 *x509) + { + int i; + STACK_OF(X509) **sk; + + i=OBJ_obj2nid(p7->type); + switch (i) + { + case NID_pkcs7_signed: + sk= &(p7->d.sign->cert); + break; + case NID_pkcs7_signedAndEnveloped: + sk= &(p7->d.signed_and_enveloped->cert); + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + if (*sk == NULL) + *sk=sk_X509_new_null(); + if (*sk == NULL) + { + PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE); + return 0; + } + CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509); + if (!sk_X509_push(*sk,x509)) + { + X509_free(x509); + return 0; + } + return(1); + } + +int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl) + { + int i; + STACK_OF(X509_CRL) **sk; + + i=OBJ_obj2nid(p7->type); + switch (i) + { + case NID_pkcs7_signed: + sk= &(p7->d.sign->crl); + break; + case NID_pkcs7_signedAndEnveloped: + sk= &(p7->d.signed_and_enveloped->crl); + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + if (*sk == NULL) + *sk=sk_X509_CRL_new_null(); + if (*sk == NULL) + { + PKCS7err(PKCS7_F_PKCS7_ADD_CRL,ERR_R_MALLOC_FAILURE); + return 0; + } + + CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL); + if (!sk_X509_CRL_push(*sk,crl)) + { + X509_CRL_free(crl); + return 0; + } + return(1); + } + +int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey, + const EVP_MD *dgst) + { + int ret; + + /* We now need to add another PKCS7_SIGNER_INFO entry */ + if (!ASN1_INTEGER_set(p7i->version,1)) + goto err; + if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, + X509_get_issuer_name(x509))) + goto err; + + /* because ASN1_INTEGER_set is used to set a 'long' we will do + * things the ugly way. */ + M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial); + if (!(p7i->issuer_and_serial->serial= + M_ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) + goto err; + + /* lets keep the pkey around for a while */ + CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY); + p7i->pkey=pkey; + + /* Set the algorithms */ + + X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)), + V_ASN1_NULL, NULL); + + if (pkey->ameth && pkey->ameth->pkey_ctrl) + { + ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN, + 0, p7i); + if (ret > 0) + return 1; + if (ret != -2) + { + PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, + PKCS7_R_SIGNING_CTRL_FAILURE); + return 0; + } + } + PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, + PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); +err: + return 0; + } + +PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey, + const EVP_MD *dgst) + { + PKCS7_SIGNER_INFO *si = NULL; + + if (dgst == NULL) + { + int def_nid; + if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0) + goto err; + dgst = EVP_get_digestbynid(def_nid); + if (dgst == NULL) + { + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE, + PKCS7_R_NO_DEFAULT_DIGEST); + goto err; + } + } + + 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: + if (si) + PKCS7_SIGNER_INFO_free(si); + return(NULL); + } + +int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md) + { + if (PKCS7_type_is_digest(p7)) + { + if(!(p7->d.digest->md->parameter = ASN1_TYPE_new())) + { + PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,ERR_R_MALLOC_FAILURE); + return 0; + } + p7->d.digest->md->parameter->type = V_ASN1_NULL; + p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md)); + return 1; + } + + PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,PKCS7_R_WRONG_CONTENT_TYPE); + return 1; + } + +STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7) + { + if (PKCS7_type_is_signed(p7)) + { + return(p7->d.sign->signer_info); + } + else if (PKCS7_type_is_signedAndEnveloped(p7)) + { + return(p7->d.signed_and_enveloped->signer_info); + } + else + return(NULL); + } + +void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk, + X509_ALGOR **pdig, X509_ALGOR **psig) + { + if (pk) + *pk = si->pkey; + if (pdig) + *pdig = si->digest_alg; + if (psig) + *psig = si->digest_enc_alg; + } + +void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc) + { + if (penc) + *penc = ri->key_enc_algor; + } + +PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509) + { + PKCS7_RECIP_INFO *ri; + + if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err; + if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err; + if (!PKCS7_add_recipient_info(p7,ri)) goto err; + return ri; +err: + if (ri) + PKCS7_RECIP_INFO_free(ri); + return NULL; + } + +int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri) + { + int i; + STACK_OF(PKCS7_RECIP_INFO) *sk; + + i=OBJ_obj2nid(p7->type); + switch (i) + { + case NID_pkcs7_signedAndEnveloped: + sk= p7->d.signed_and_enveloped->recipientinfo; + break; + case NID_pkcs7_enveloped: + sk= p7->d.enveloped->recipientinfo; + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + if (!sk_PKCS7_RECIP_INFO_push(sk,ri)) + return 0; + return(1); + } + +int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509) + { + int ret; + EVP_PKEY *pkey = NULL; + if (!ASN1_INTEGER_set(p7i->version,0)) + return 0; + if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, + X509_get_issuer_name(x509))) + return 0; + + M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial); + if (!(p7i->issuer_and_serial->serial= + M_ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) + return 0; + + pkey = X509_get_pubkey(x509); + + if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl) + { + PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, + PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); + goto err; + } + + ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT, + 0, p7i); + if (ret == -2) + { + PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, + PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); + goto err; + } + if (ret <= 0) + { + PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, + PKCS7_R_ENCRYPTION_CTRL_FAILURE); + goto err; + } + + EVP_PKEY_free(pkey); + + CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509); + p7i->cert=x509; + + return 1; + + err: + if (pkey) + EVP_PKEY_free(pkey); + return 0; + } + +X509 *PKCS7_cert_from_signer_info(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); + } + +int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher) + { + int i; + PKCS7_ENC_CONTENT *ec; + + i=OBJ_obj2nid(p7->type); + switch (i) + { + case NID_pkcs7_signedAndEnveloped: + ec=p7->d.signed_and_enveloped->enc_data; + break; + case NID_pkcs7_enveloped: + ec=p7->d.enveloped->enc_data; + break; + default: + PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE); + return(0); + } + + /* Check cipher OID exists and has data in it*/ + i = EVP_CIPHER_type(cipher); + if(i == NID_undef) { + PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER); + return(0); + } + + ec->cipher = cipher; + return 1; + } + +int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7) + { + ASN1_OCTET_STRING *os = NULL; + + switch (OBJ_obj2nid(p7->type)) + { + case NID_pkcs7_data: + os = p7->d.data; + break; + + case NID_pkcs7_signedAndEnveloped: + os = p7->d.signed_and_enveloped->enc_data->enc_data; + if (os == NULL) + { + os=M_ASN1_OCTET_STRING_new(); + p7->d.signed_and_enveloped->enc_data->enc_data=os; + } + break; + + case NID_pkcs7_enveloped: + os = p7->d.enveloped->enc_data->enc_data; + if (os == NULL) + { + os=M_ASN1_OCTET_STRING_new(); + p7->d.enveloped->enc_data->enc_data=os; + } + break; + + case NID_pkcs7_signed: + os=p7->d.sign->contents->d.data; + break; + + default: + os = NULL; + break; + } + + if (os == NULL) + return 0; + + os->flags |= ASN1_STRING_FLAG_NDEF; + *boundary = &os->data; + + return 1; + } |