* 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:
* 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
+ * 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
* 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
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
+#include <openssl/err.h>
static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype,
- void *value);
+ void *value);
static ASN1_TYPE *get_attribute(STACK_OF(X509_ATTRIBUTE) *sk, int nid);
-static int PKCS7_type_is_other(PKCS7* p7)
- {
- int isOther=1;
-
- int nid=OBJ_obj2nid(p7->type);
-
- switch( nid )
- {
- case NID_pkcs7_data:
- case NID_pkcs7_signed:
- case NID_pkcs7_enveloped:
- case NID_pkcs7_signedAndEnveloped:
- case NID_pkcs7_digest:
- case NID_pkcs7_encrypted:
- isOther=0;
- break;
- default:
- isOther=1;
- }
-
- return isOther;
-
- }
+static int PKCS7_type_is_other(PKCS7 *p7)
+{
+ int isOther = 1;
+
+ int nid = OBJ_obj2nid(p7->type);
+
+ switch (nid) {
+ case NID_pkcs7_data:
+ case NID_pkcs7_signed:
+ case NID_pkcs7_enveloped:
+ case NID_pkcs7_signedAndEnveloped:
+ case NID_pkcs7_digest:
+ case NID_pkcs7_encrypted:
+ isOther = 0;
+ break;
+ default:
+ isOther = 1;
+ }
+
+ return isOther;
+
+}
static ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7)
- {
- if ( PKCS7_type_is_data(p7))
- return p7->d.data;
- if ( PKCS7_type_is_other(p7) && p7->d.other
- && (p7->d.other->type == V_ASN1_OCTET_STRING))
- return p7->d.other->value.octet_string;
- return NULL;
- }
+{
+ if (PKCS7_type_is_data(p7))
+ return p7->d.data;
+ if (PKCS7_type_is_other(p7) && p7->d.other
+ && (p7->d.other->type == V_ASN1_OCTET_STRING))
+ return p7->d.other->value.octet_string;
+ return NULL;
+}
static int PKCS7_bio_add_digest(BIO **pbio, X509_ALGOR *alg)
- {
- BIO *btmp;
- const EVP_MD *md;
- if ((btmp=BIO_new(BIO_f_md())) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST,ERR_R_BIO_LIB);
- goto err;
- }
-
- md=EVP_get_digestbyobj(alg->algorithm);
- if (md == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST,PKCS7_R_UNKNOWN_DIGEST_TYPE);
- goto err;
- }
-
- BIO_set_md(btmp,md);
- if (*pbio == NULL)
- *pbio=btmp;
- else if (!BIO_push(*pbio,btmp))
- {
- PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST,ERR_R_BIO_LIB);
- goto err;
- }
- btmp=NULL;
-
- return 1;
-
- err:
- if (btmp)
- BIO_free(btmp);
- return 0;
-
- }
+{
+ BIO *btmp;
+ const EVP_MD *md;
+ if ((btmp = BIO_new(BIO_f_md())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, ERR_R_BIO_LIB);
+ goto err;
+ }
+
+ md = EVP_get_digestbyobj(alg->algorithm);
+ if (md == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, PKCS7_R_UNKNOWN_DIGEST_TYPE);
+ goto err;
+ }
+
+ BIO_set_md(btmp, md);
+ if (*pbio == NULL)
+ *pbio = btmp;
+ else if (!BIO_push(*pbio, btmp)) {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, ERR_R_BIO_LIB);
+ goto err;
+ }
+ btmp = NULL;
+
+ return 1;
+
+ err:
+ if (btmp)
+ BIO_free(btmp);
+ return 0;
+
+}
+
+static int pkcs7_encode_rinfo(PKCS7_RECIP_INFO *ri,
+ unsigned char *key, int keylen)
+{
+ EVP_PKEY_CTX *pctx = NULL;
+ EVP_PKEY *pkey = NULL;
+ unsigned char *ek = NULL;
+ int ret = 0;
+ size_t eklen;
+
+ pkey = X509_get_pubkey(ri->cert);
+
+ if (!pkey)
+ return 0;
+
+ pctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (!pctx)
+ return 0;
+
+ if (EVP_PKEY_encrypt_init(pctx) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_ENCRYPT,
+ EVP_PKEY_CTRL_PKCS7_ENCRYPT, 0, ri) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_ENCODE_RINFO, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ if (EVP_PKEY_encrypt(pctx, NULL, &eklen, key, keylen) <= 0)
+ goto err;
+
+ ek = OPENSSL_malloc(eklen);
+
+ if (ek == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_ENCODE_RINFO, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_PKEY_encrypt(pctx, ek, &eklen, key, keylen) <= 0)
+ goto err;
+
+ ASN1_STRING_set0(ri->enc_key, ek, eklen);
+ ek = NULL;
+
+ ret = 1;
+
+ err:
+ if (pkey)
+ EVP_PKEY_free(pkey);
+ if (pctx)
+ EVP_PKEY_CTX_free(pctx);
+ if (ek)
+ OPENSSL_free(ek);
+ return ret;
+
+}
+
+static int pkcs7_decrypt_rinfo(unsigned char **pek, int *peklen,
+ PKCS7_RECIP_INFO *ri, EVP_PKEY *pkey,
+ size_t fixlen)
+{
+ EVP_PKEY_CTX *pctx = NULL;
+ unsigned char *ek = NULL;
+ size_t eklen;
+
+ int ret = -1;
+
+ pctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (!pctx)
+ return -1;
+
+ if (EVP_PKEY_decrypt_init(pctx) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DECRYPT,
+ EVP_PKEY_CTRL_PKCS7_DECRYPT, 0, ri) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ if (EVP_PKEY_decrypt(pctx, NULL, &eklen,
+ ri->enc_key->data, ri->enc_key->length) <= 0)
+ goto err;
+
+ ek = OPENSSL_malloc(eklen);
+
+ if (ek == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_PKEY_decrypt(pctx, ek, &eklen,
+ ri->enc_key->data, ri->enc_key->length) <= 0
+ || eklen == 0
+ || (fixlen != 0 && eklen != fixlen)) {
+ ret = 0;
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, ERR_R_EVP_LIB);
+ goto err;
+ }
+
+ ret = 1;
+
+ if (*pek) {
+ OPENSSL_cleanse(*pek, *peklen);
+ OPENSSL_free(*pek);
+ }
+
+ *pek = ek;
+ *peklen = eklen;
+
+ err:
+ if (pctx)
+ EVP_PKEY_CTX_free(pctx);
+ if (!ret && ek)
+ OPENSSL_free(ek);
+
+ return ret;
+}
BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
- {
- int i;
- BIO *out=NULL,*btmp=NULL;
- X509_ALGOR *xa = NULL;
- const EVP_CIPHER *evp_cipher=NULL;
- STACK_OF(X509_ALGOR) *md_sk=NULL;
- STACK_OF(PKCS7_RECIP_INFO) *rsk=NULL;
- X509_ALGOR *xalg=NULL;
- PKCS7_RECIP_INFO *ri=NULL;
- EVP_PKEY *pkey;
- ASN1_OCTET_STRING *os=NULL;
-
- i=OBJ_obj2nid(p7->type);
- p7->state=PKCS7_S_HEADER;
-
- switch (i)
- {
- case NID_pkcs7_signed:
- md_sk=p7->d.sign->md_algs;
- os = PKCS7_get_octet_string(p7->d.sign->contents);
- break;
- case NID_pkcs7_signedAndEnveloped:
- rsk=p7->d.signed_and_enveloped->recipientinfo;
- md_sk=p7->d.signed_and_enveloped->md_algs;
- xalg=p7->d.signed_and_enveloped->enc_data->algorithm;
- evp_cipher=p7->d.signed_and_enveloped->enc_data->cipher;
- if (evp_cipher == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,
- PKCS7_R_CIPHER_NOT_INITIALIZED);
- goto err;
- }
- break;
- case NID_pkcs7_enveloped:
- rsk=p7->d.enveloped->recipientinfo;
- xalg=p7->d.enveloped->enc_data->algorithm;
- evp_cipher=p7->d.enveloped->enc_data->cipher;
- if (evp_cipher == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,
- PKCS7_R_CIPHER_NOT_INITIALIZED);
- goto err;
- }
- break;
- case NID_pkcs7_digest:
- xa = p7->d.digest->md;
- os = PKCS7_get_octet_string(p7->d.digest->contents);
- break;
- default:
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
- goto err;
- }
-
- for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
- if (!PKCS7_bio_add_digest(&out, sk_X509_ALGOR_value(md_sk, i)))
- goto err;
-
- if (xa && !PKCS7_bio_add_digest(&out, xa))
- goto err;
-
- if (evp_cipher != NULL)
- {
- unsigned char key[EVP_MAX_KEY_LENGTH];
- unsigned char iv[EVP_MAX_IV_LENGTH];
- int keylen,ivlen;
- int jj,max;
- unsigned char *tmp;
- EVP_CIPHER_CTX *ctx;
-
- if ((btmp=BIO_new(BIO_f_cipher())) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_BIO_LIB);
- goto err;
- }
- BIO_get_cipher_ctx(btmp, &ctx);
- keylen=EVP_CIPHER_key_length(evp_cipher);
- ivlen=EVP_CIPHER_iv_length(evp_cipher);
- xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
- if (ivlen > 0) RAND_pseudo_bytes(iv,ivlen);
- if (EVP_CipherInit_ex(ctx, evp_cipher, NULL, NULL, NULL, 1)<=0)
- goto err;
- if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
- goto err;
- if (EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, 1) <= 0)
- goto err;
-
- if (ivlen > 0) {
- if (xalg->parameter == NULL)
- xalg->parameter=ASN1_TYPE_new();
- if(EVP_CIPHER_param_to_asn1(ctx, xalg->parameter) < 0)
- goto err;
- }
-
- /* Lets do the pub key stuff :-) */
- max=0;
- for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
- {
- ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
- if (ri->cert == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_MISSING_CERIPEND_INFO);
- goto err;
- }
- pkey=X509_get_pubkey(ri->cert);
- jj=EVP_PKEY_size(pkey);
- EVP_PKEY_free(pkey);
- if (max < jj) max=jj;
- }
- if ((tmp=(unsigned char *)OPENSSL_malloc(max)) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
- {
- ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
- pkey=X509_get_pubkey(ri->cert);
- jj=EVP_PKEY_encrypt(tmp,key,keylen,pkey);
- EVP_PKEY_free(pkey);
- if (jj <= 0)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_EVP_LIB);
- OPENSSL_free(tmp);
- goto err;
- }
- M_ASN1_OCTET_STRING_set(ri->enc_key,tmp,jj);
- }
- OPENSSL_free(tmp);
- OPENSSL_cleanse(key, keylen);
-
- if (out == NULL)
- out=btmp;
- else
- BIO_push(out,btmp);
- btmp=NULL;
- }
-
- if (bio == NULL)
- {
- if (PKCS7_is_detached(p7))
- bio=BIO_new(BIO_s_null());
- else if (os && os->length > 0)
- bio = BIO_new_mem_buf(os->data, os->length);
- if(bio == NULL)
- {
- bio=BIO_new(BIO_s_mem());
- BIO_set_mem_eof_return(bio,0);
- }
- }
- BIO_push(out,bio);
- bio=NULL;
- if (0)
- {
-err:
- if (out != NULL)
- BIO_free_all(out);
- if (btmp != NULL)
- BIO_free_all(btmp);
- out=NULL;
- }
- return(out);
- }
+{
+ int i;
+ BIO *out = NULL, *btmp = NULL;
+ X509_ALGOR *xa = NULL;
+ const EVP_CIPHER *evp_cipher = NULL;
+ STACK_OF(X509_ALGOR) *md_sk = NULL;
+ STACK_OF(PKCS7_RECIP_INFO) *rsk = NULL;
+ X509_ALGOR *xalg = NULL;
+ PKCS7_RECIP_INFO *ri = NULL;
+ ASN1_OCTET_STRING *os = NULL;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_INVALID_NULL_POINTER);
+ return NULL;
+ }
+ /*
+ * The content field in the PKCS7 ContentInfo is optional, but that really
+ * only applies to inner content (precisely, detached signatures).
+ *
+ * When reading content, missing outer content is therefore treated as an
+ * error.
+ *
+ * When creating content, PKCS7_content_new() must be called before
+ * calling this method, so a NULL p7->d is always an error.
+ */
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_NO_CONTENT);
+ return NULL;
+ }
+
+ i = OBJ_obj2nid(p7->type);
+ p7->state = PKCS7_S_HEADER;
+
+ switch (i) {
+ case NID_pkcs7_signed:
+ md_sk = p7->d.sign->md_algs;
+ os = PKCS7_get_octet_string(p7->d.sign->contents);
+ break;
+ case NID_pkcs7_signedAndEnveloped:
+ rsk = p7->d.signed_and_enveloped->recipientinfo;
+ md_sk = p7->d.signed_and_enveloped->md_algs;
+ xalg = p7->d.signed_and_enveloped->enc_data->algorithm;
+ evp_cipher = p7->d.signed_and_enveloped->enc_data->cipher;
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_CIPHER_NOT_INITIALIZED);
+ goto err;
+ }
+ break;
+ case NID_pkcs7_enveloped:
+ rsk = p7->d.enveloped->recipientinfo;
+ xalg = p7->d.enveloped->enc_data->algorithm;
+ evp_cipher = p7->d.enveloped->enc_data->cipher;
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_CIPHER_NOT_INITIALIZED);
+ goto err;
+ }
+ break;
+ case NID_pkcs7_digest:
+ xa = p7->d.digest->md;
+ os = PKCS7_get_octet_string(p7->d.digest->contents);
+ break;
+ case NID_pkcs7_data:
+ break;
+ default:
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+ goto err;
+ }
+
+ for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++)
+ if (!PKCS7_bio_add_digest(&out, sk_X509_ALGOR_value(md_sk, i)))
+ goto err;
+
+ if (xa && !PKCS7_bio_add_digest(&out, xa))
+ goto err;
+
+ if (evp_cipher != NULL) {
+ unsigned char key[EVP_MAX_KEY_LENGTH];
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+ int keylen, ivlen;
+ EVP_CIPHER_CTX *ctx;
+
+ if ((btmp = BIO_new(BIO_f_cipher())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, ERR_R_BIO_LIB);
+ goto err;
+ }
+ BIO_get_cipher_ctx(btmp, &ctx);
+ keylen = EVP_CIPHER_key_length(evp_cipher);
+ ivlen = EVP_CIPHER_iv_length(evp_cipher);
+ xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
+ if (ivlen > 0)
+ if (RAND_bytes(iv, ivlen) <= 0)
+ goto err;
+ if (EVP_CipherInit_ex(ctx, evp_cipher, NULL, NULL, NULL, 1) <= 0)
+ goto err;
+ if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
+ goto err;
+ if (EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, 1) <= 0)
+ goto err;
+
+ if (ivlen > 0) {
+ if (xalg->parameter == NULL) {
+ xalg->parameter = ASN1_TYPE_new();
+ if (xalg->parameter == NULL)
+ goto err;
+ }
+ if (EVP_CIPHER_param_to_asn1(ctx, xalg->parameter) < 0)
+ goto err;
+ }
+
+ /* Lets do the pub key stuff :-) */
+ for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
+ if (pkcs7_encode_rinfo(ri, key, keylen) <= 0)
+ goto err;
+ }
+ OPENSSL_cleanse(key, keylen);
+
+ if (out == NULL)
+ out = btmp;
+ else
+ BIO_push(out, btmp);
+ btmp = NULL;
+ }
+
+ if (bio == NULL) {
+ if (PKCS7_is_detached(p7)) {
+ bio = BIO_new(BIO_s_null());
+ } else if (os && os->length > 0) {
+ bio = BIO_new_mem_buf(os->data, os->length);
+ } else {
+ bio = BIO_new(BIO_s_mem());
+ if (bio == NULL)
+ goto err;
+ BIO_set_mem_eof_return(bio, 0);
+ }
+ if (bio == NULL)
+ goto err;
+ }
+ if (out)
+ BIO_push(out, bio);
+ else
+ out = bio;
+ bio = NULL;
+ if (0) {
+ err:
+ if (out != NULL)
+ BIO_free_all(out);
+ if (btmp != NULL)
+ BIO_free_all(btmp);
+ out = NULL;
+ }
+ return (out);
+}
+
+static int pkcs7_cmp_ri(PKCS7_RECIP_INFO *ri, X509 *pcert)
+{
+ int ret;
+ ret = X509_NAME_cmp(ri->issuer_and_serial->issuer,
+ pcert->cert_info->issuer);
+ if (ret)
+ return ret;
+ return M_ASN1_INTEGER_cmp(pcert->cert_info->serialNumber,
+ ri->issuer_and_serial->serial);
+}
/* int */
BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
- {
- int i,j;
- BIO *out=NULL,*btmp=NULL,*etmp=NULL,*bio=NULL;
- unsigned char *tmp=NULL;
- X509_ALGOR *xa;
- ASN1_OCTET_STRING *data_body=NULL;
- const EVP_MD *evp_md;
- const EVP_CIPHER *evp_cipher=NULL;
- EVP_CIPHER_CTX *evp_ctx=NULL;
- X509_ALGOR *enc_alg=NULL;
- STACK_OF(X509_ALGOR) *md_sk=NULL;
- STACK_OF(PKCS7_RECIP_INFO) *rsk=NULL;
- X509_ALGOR *xalg=NULL;
- PKCS7_RECIP_INFO *ri=NULL;
-
- i=OBJ_obj2nid(p7->type);
- p7->state=PKCS7_S_HEADER;
-
- switch (i)
- {
- case NID_pkcs7_signed:
- data_body=PKCS7_get_octet_string(p7->d.sign->contents);
- md_sk=p7->d.sign->md_algs;
- break;
- case NID_pkcs7_signedAndEnveloped:
- rsk=p7->d.signed_and_enveloped->recipientinfo;
- md_sk=p7->d.signed_and_enveloped->md_algs;
- data_body=p7->d.signed_and_enveloped->enc_data->enc_data;
- enc_alg=p7->d.signed_and_enveloped->enc_data->algorithm;
- evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
- if (evp_cipher == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
- goto err;
- }
- xalg=p7->d.signed_and_enveloped->enc_data->algorithm;
- break;
- case NID_pkcs7_enveloped:
- rsk=p7->d.enveloped->recipientinfo;
- enc_alg=p7->d.enveloped->enc_data->algorithm;
- data_body=p7->d.enveloped->enc_data->enc_data;
- evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
- if (evp_cipher == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
- goto err;
- }
- xalg=p7->d.enveloped->enc_data->algorithm;
- break;
- default:
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
- goto err;
- }
-
- /* We will be checking the signature */
- if (md_sk != NULL)
- {
- for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
- {
- xa=sk_X509_ALGOR_value(md_sk,i);
- if ((btmp=BIO_new(BIO_f_md())) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_BIO_LIB);
- goto err;
- }
-
- j=OBJ_obj2nid(xa->algorithm);
- evp_md=EVP_get_digestbynid(j);
- if (evp_md == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNKNOWN_DIGEST_TYPE);
- goto err;
- }
-
- BIO_set_md(btmp,evp_md);
- if (out == NULL)
- out=btmp;
- else
- BIO_push(out,btmp);
- btmp=NULL;
- }
- }
-
- if (evp_cipher != NULL)
- {
+{
+ int i, j;
+ BIO *out = NULL, *btmp = NULL, *etmp = NULL, *bio = NULL;
+ X509_ALGOR *xa;
+ ASN1_OCTET_STRING *data_body = NULL;
+ const EVP_MD *evp_md;
+ const EVP_CIPHER *evp_cipher = NULL;
+ EVP_CIPHER_CTX *evp_ctx = NULL;
+ X509_ALGOR *enc_alg = NULL;
+ STACK_OF(X509_ALGOR) *md_sk = NULL;
+ STACK_OF(PKCS7_RECIP_INFO) *rsk = NULL;
+ PKCS7_RECIP_INFO *ri = NULL;
+ unsigned char *ek = NULL, *tkey = NULL;
+ int eklen = 0, tkeylen = 0;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_INVALID_NULL_POINTER);
+ return NULL;
+ }
+
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
+ return NULL;
+ }
+
+ i = OBJ_obj2nid(p7->type);
+ p7->state = PKCS7_S_HEADER;
+
+ switch (i) {
+ case NID_pkcs7_signed:
+ /*
+ * p7->d.sign->contents is a PKCS7 structure consisting of a contentType
+ * field and optional content.
+ * data_body is NULL if that structure has no (=detached) content
+ * or if the contentType is wrong (i.e., not "data").
+ */
+ data_body = PKCS7_get_octet_string(p7->d.sign->contents);
+ if (!PKCS7_is_detached(p7) && data_body == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_INVALID_SIGNED_DATA_TYPE);
+ goto err;
+ }
+ md_sk = p7->d.sign->md_algs;
+ break;
+ case NID_pkcs7_signedAndEnveloped:
+ rsk = p7->d.signed_and_enveloped->recipientinfo;
+ md_sk = p7->d.signed_and_enveloped->md_algs;
+ /* data_body is NULL if the optional EncryptedContent is missing. */
+ data_body = p7->d.signed_and_enveloped->enc_data->enc_data;
+ enc_alg = p7->d.signed_and_enveloped->enc_data->algorithm;
+ evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
+ goto err;
+ }
+ break;
+ case NID_pkcs7_enveloped:
+ rsk = p7->d.enveloped->recipientinfo;
+ enc_alg = p7->d.enveloped->enc_data->algorithm;
+ /* data_body is NULL if the optional EncryptedContent is missing. */
+ data_body = p7->d.enveloped->enc_data->enc_data;
+ evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
+ goto err;
+ }
+ break;
+ default:
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+ goto err;
+ }
+
+ /* Detached content must be supplied via in_bio instead. */
+ if (data_body == NULL && in_bio == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
+ goto err;
+ }
+
+ /* We will be checking the signature */
+ if (md_sk != NULL) {
+ for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) {
+ xa = sk_X509_ALGOR_value(md_sk, i);
+ if ((btmp = BIO_new(BIO_f_md())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
+ goto err;
+ }
+
+ j = OBJ_obj2nid(xa->algorithm);
+ evp_md = EVP_get_digestbynid(j);
+ if (evp_md == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_UNKNOWN_DIGEST_TYPE);
+ goto err;
+ }
+
+ BIO_set_md(btmp, evp_md);
+ if (out == NULL)
+ out = btmp;
+ else
+ BIO_push(out, btmp);
+ btmp = NULL;
+ }
+ }
+
+ if (evp_cipher != NULL) {
#if 0
- unsigned char key[EVP_MAX_KEY_LENGTH];
- unsigned char iv[EVP_MAX_IV_LENGTH];
- unsigned char *p;
- int keylen,ivlen;
- int max;
- X509_OBJECT ret;
+ unsigned char key[EVP_MAX_KEY_LENGTH];
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+ unsigned char *p;
+ int keylen, ivlen;
+ int max;
+ X509_OBJECT ret;
#endif
- int jj;
-
- if ((etmp=BIO_new(BIO_f_cipher())) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_BIO_LIB);
- goto err;
- }
-
- /* It was encrypted, we need to decrypt the secret key
- * with the private key */
-
- /* Find the recipientInfo which matches the passed certificate
- * (if any)
- */
-
- for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++) {
- ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
- if(!X509_NAME_cmp(ri->issuer_and_serial->issuer,
- pcert->cert_info->issuer) &&
- !M_ASN1_INTEGER_cmp(pcert->cert_info->serialNumber,
- ri->issuer_and_serial->serial)) break;
- ri=NULL;
- }
- if (ri == NULL) {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,
- PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
- goto err;
- }
-
- jj=EVP_PKEY_size(pkey);
- tmp=(unsigned char *)OPENSSL_malloc(jj+10);
- if (tmp == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- jj=EVP_PKEY_decrypt(tmp, M_ASN1_STRING_data(ri->enc_key),
- M_ASN1_STRING_length(ri->enc_key), pkey);
- if (jj <= 0)
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_EVP_LIB);
- goto err;
- }
-
- evp_ctx=NULL;
- BIO_get_cipher_ctx(etmp,&evp_ctx);
- if (EVP_CipherInit_ex(evp_ctx,evp_cipher,NULL,NULL,NULL,0) <= 0)
- goto err;
- if (EVP_CIPHER_asn1_to_param(evp_ctx,enc_alg->parameter) < 0)
- goto err;
-
- if (jj != EVP_CIPHER_CTX_key_length(evp_ctx)) {
- /* Some S/MIME clients don't use the same key
- * and effective key length. The key length is
- * determined by the size of the decrypted RSA key.
- */
- if(!EVP_CIPHER_CTX_set_key_length(evp_ctx, jj))
- {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,
- PKCS7_R_DECRYPTED_KEY_IS_WRONG_LENGTH);
- goto err;
- }
- }
- if (EVP_CipherInit_ex(evp_ctx,NULL,NULL,tmp,NULL,0) <= 0)
- goto err;
-
- OPENSSL_cleanse(tmp,jj);
-
- if (out == NULL)
- out=etmp;
- else
- BIO_push(out,etmp);
- etmp=NULL;
- }
+ if ((etmp = BIO_new(BIO_f_cipher())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
+ goto err;
+ }
+
+ /*
+ * It was encrypted, we need to decrypt the secret key with the
+ * private key
+ */
+
+ /*
+ * Find the recipientInfo which matches the passed certificate (if
+ * any)
+ */
+
+ if (pcert) {
+ for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
+ if (!pkcs7_cmp_ri(ri, pcert))
+ break;
+ ri = NULL;
+ }
+ if (ri == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
+ goto err;
+ }
+ }
+
+ /* If we haven't got a certificate try each ri in turn */
+ if (pcert == NULL) {
+ /*
+ * Always attempt to decrypt all rinfo even after sucess as a
+ * defence against MMA timing attacks.
+ */
+ for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
+
+ if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey,
+ EVP_CIPHER_key_length(evp_cipher)) < 0)
+ goto err;
+ ERR_clear_error();
+ }
+ } else {
+ /* Only exit on fatal errors, not decrypt failure */
+ if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey, 0) < 0)
+ goto err;
+ ERR_clear_error();
+ }
+
+ evp_ctx = NULL;
+ BIO_get_cipher_ctx(etmp, &evp_ctx);
+ if (EVP_CipherInit_ex(evp_ctx, evp_cipher, NULL, NULL, NULL, 0) <= 0)
+ goto err;
+ if (EVP_CIPHER_asn1_to_param(evp_ctx, enc_alg->parameter) < 0)
+ goto err;
+ /* Generate random key as MMA defence */
+ tkeylen = EVP_CIPHER_CTX_key_length(evp_ctx);
+ tkey = OPENSSL_malloc(tkeylen);
+ if (!tkey)
+ goto err;
+ if (EVP_CIPHER_CTX_rand_key(evp_ctx, tkey) <= 0)
+ goto err;
+ if (ek == NULL) {
+ ek = tkey;
+ eklen = tkeylen;
+ tkey = NULL;
+ }
+
+ if (eklen != EVP_CIPHER_CTX_key_length(evp_ctx)) {
+ /*
+ * Some S/MIME clients don't use the same key and effective key
+ * length. The key length is determined by the size of the
+ * decrypted RSA key.
+ */
+ if (!EVP_CIPHER_CTX_set_key_length(evp_ctx, eklen)) {
+ /* Use random key as MMA defence */
+ OPENSSL_cleanse(ek, eklen);
+ OPENSSL_free(ek);
+ ek = tkey;
+ eklen = tkeylen;
+ tkey = NULL;
+ }
+ }
+ /* Clear errors so we don't leak information useful in MMA */
+ ERR_clear_error();
+ if (EVP_CipherInit_ex(evp_ctx, NULL, NULL, ek, NULL, 0) <= 0)
+ goto err;
+
+ if (ek) {
+ OPENSSL_cleanse(ek, eklen);
+ OPENSSL_free(ek);
+ ek = NULL;
+ }
+ if (tkey) {
+ OPENSSL_cleanse(tkey, tkeylen);
+ OPENSSL_free(tkey);
+ tkey = NULL;
+ }
+
+ if (out == NULL)
+ out = etmp;
+ else
+ BIO_push(out, etmp);
+ etmp = NULL;
+ }
#if 1
- if (PKCS7_is_detached(p7) || (in_bio != NULL))
- {
- bio=in_bio;
- }
- else
- {
-#if 0
- bio=BIO_new(BIO_s_mem());
- /* We need to set this so that when we have read all
- * the data, the encrypt BIO, if present, will read
- * EOF and encode the last few bytes */
- BIO_set_mem_eof_return(bio,0);
-
- if (data_body->length > 0)
- BIO_write(bio,(char *)data_body->data,data_body->length);
-#else
- if (data_body->length > 0)
- bio = BIO_new_mem_buf(data_body->data,data_body->length);
- else {
- bio=BIO_new(BIO_s_mem());
- BIO_set_mem_eof_return(bio,0);
- }
+ if (in_bio != NULL) {
+ bio = in_bio;
+ } else {
+# if 0
+ bio = BIO_new(BIO_s_mem());
+ if (bio == NULL)
+ goto err;
+ /*
+ * We need to set this so that when we have read all the data, the
+ * encrypt BIO, if present, will read EOF and encode the last few
+ * bytes
+ */
+ BIO_set_mem_eof_return(bio, 0);
+
+ if (data_body->length > 0)
+ BIO_write(bio, (char *)data_body->data, data_body->length);
+# else
+ if (data_body->length > 0)
+ bio = BIO_new_mem_buf(data_body->data, data_body->length);
+ else {
+ bio = BIO_new(BIO_s_mem());
+ if (bio == NULL)
+ goto err;
+ BIO_set_mem_eof_return(bio, 0);
+ }
+ if (bio == NULL)
+ goto err;
+# endif
+ }
+ BIO_push(out, bio);
+ bio = NULL;
#endif
- }
- BIO_push(out,bio);
- bio=NULL;
-#endif
- if (0)
- {
-err:
- if (out != NULL) BIO_free_all(out);
- if (btmp != NULL) BIO_free_all(btmp);
- if (etmp != NULL) BIO_free_all(etmp);
- if (bio != NULL) BIO_free_all(bio);
- out=NULL;
- }
- if (tmp != NULL)
- OPENSSL_free(tmp);
- return(out);
- }
+ if (0) {
+ err:
+ if (ek) {
+ OPENSSL_cleanse(ek, eklen);
+ OPENSSL_free(ek);
+ }
+ if (tkey) {
+ OPENSSL_cleanse(tkey, tkeylen);
+ OPENSSL_free(tkey);
+ }
+ if (out != NULL)
+ BIO_free_all(out);
+ if (btmp != NULL)
+ BIO_free_all(btmp);
+ if (etmp != NULL)
+ BIO_free_all(etmp);
+ if (bio != NULL)
+ BIO_free_all(bio);
+ out = NULL;
+ }
+ return (out);
+}
static BIO *PKCS7_find_digest(EVP_MD_CTX **pmd, BIO *bio, int nid)
- {
- for (;;)
- {
- bio=BIO_find_type(bio,BIO_TYPE_MD);
- if (bio == NULL)
- {
- PKCS7err(PKCS7_F_FIND_DIGEST,PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
- return NULL;
- }
- BIO_get_md_ctx(bio,pmd);
- if (*pmd == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_INTERNAL_ERROR);
- return NULL;
- }
- if (EVP_MD_CTX_type(*pmd) == nid)
- return bio;
- bio=BIO_next(bio);
- }
- return NULL;
- }
+{
+ for (;;) {
+ bio = BIO_find_type(bio, BIO_TYPE_MD);
+ if (bio == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_FIND_DIGEST,
+ PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
+ return NULL;
+ }
+ BIO_get_md_ctx(bio, pmd);
+ if (*pmd == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_FIND_DIGEST, ERR_R_INTERNAL_ERROR);
+ return NULL;
+ }
+ if (EVP_MD_CTX_type(*pmd) == nid)
+ return bio;
+ bio = BIO_next(bio);
+ }
+ return NULL;
+}
+
+static int do_pkcs7_signed_attrib(PKCS7_SIGNER_INFO *si, EVP_MD_CTX *mctx)
+{
+ unsigned char md_data[EVP_MAX_MD_SIZE];
+ unsigned int md_len;
+
+ /* Add signing time if not already present */
+ if (!PKCS7_get_signed_attribute(si, NID_pkcs9_signingTime)) {
+ if (!PKCS7_add0_attrib_signing_time(si, NULL)) {
+ PKCS7err(PKCS7_F_DO_PKCS7_SIGNED_ATTRIB, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ }
+
+ /* Add digest */
+ if (!EVP_DigestFinal_ex(mctx, md_data, &md_len)) {
+ PKCS7err(PKCS7_F_DO_PKCS7_SIGNED_ATTRIB, ERR_R_EVP_LIB);
+ return 0;
+ }
+ if (!PKCS7_add1_attrib_digest(si, md_data, md_len)) {
+ PKCS7err(PKCS7_F_DO_PKCS7_SIGNED_ATTRIB, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ /* Now sign the attributes */
+ if (!PKCS7_SIGNER_INFO_sign(si))
+ return 0;
+
+ return 1;
+}
int PKCS7_dataFinal(PKCS7 *p7, BIO *bio)
- {
- int ret=0;
- int i,j;
- BIO *btmp;
- BUF_MEM *buf_mem=NULL;
- BUF_MEM *buf=NULL;
- PKCS7_SIGNER_INFO *si;
- EVP_MD_CTX *mdc,ctx_tmp;
- STACK_OF(X509_ATTRIBUTE) *sk;
- STACK_OF(PKCS7_SIGNER_INFO) *si_sk=NULL;
- ASN1_OCTET_STRING *os=NULL;
-
- EVP_MD_CTX_init(&ctx_tmp);
- i=OBJ_obj2nid(p7->type);
- p7->state=PKCS7_S_HEADER;
-
- switch (i)
- {
- case NID_pkcs7_signedAndEnveloped:
- /* XXXXXXXXXXXXXXXX */
- si_sk=p7->d.signed_and_enveloped->signer_info;
- os=M_ASN1_OCTET_STRING_new();
- p7->d.signed_and_enveloped->enc_data->enc_data=os;
- break;
- case NID_pkcs7_enveloped:
- /* XXXXXXXXXXXXXXXX */
- os=M_ASN1_OCTET_STRING_new();
- p7->d.enveloped->enc_data->enc_data=os;
- break;
- case NID_pkcs7_signed:
- si_sk=p7->d.sign->signer_info;
- os=PKCS7_get_octet_string(p7->d.sign->contents);
- /* If detached data then the content is excluded */
- if(PKCS7_type_is_data(p7->d.sign->contents) && p7->detached) {
- M_ASN1_OCTET_STRING_free(os);
- p7->d.sign->contents->d.data = NULL;
- }
- break;
-
- case NID_pkcs7_digest:
- os=PKCS7_get_octet_string(p7->d.digest->contents);
- /* If detached data then the content is excluded */
- if(PKCS7_type_is_data(p7->d.digest->contents) && p7->detached)
- {
- M_ASN1_OCTET_STRING_free(os);
- p7->d.digest->contents->d.data = NULL;
- }
- break;
-
- }
-
- if (si_sk != NULL)
- {
- if ((buf=BUF_MEM_new()) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_BIO_LIB);
- goto err;
- }
- for (i=0; i<sk_PKCS7_SIGNER_INFO_num(si_sk); i++)
- {
- si=sk_PKCS7_SIGNER_INFO_value(si_sk,i);
- if (si->pkey == NULL) continue;
-
- j=OBJ_obj2nid(si->digest_alg->algorithm);
-
- btmp=bio;
-
- btmp = PKCS7_find_digest(&mdc, btmp, j);
-
- if (btmp == NULL)
- goto err;
-
- /* We now have the EVP_MD_CTX, lets do the
- * signing. */
- EVP_MD_CTX_copy_ex(&ctx_tmp,mdc);
- if (!BUF_MEM_grow_clean(buf,EVP_PKEY_size(si->pkey)))
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_BIO_LIB);
- goto err;
- }
-
- sk=si->auth_attr;
-
- /* If there are attributes, we add the digest
- * attribute and only sign the attributes */
- if ((sk != NULL) && (sk_X509_ATTRIBUTE_num(sk) != 0))
- {
- unsigned char md_data[EVP_MAX_MD_SIZE], *abuf=NULL;
- unsigned int md_len, alen;
- ASN1_OCTET_STRING *digest;
- ASN1_UTCTIME *sign_time;
- const EVP_MD *md_tmp;
-
- /* Add signing time if not already present */
- if (!PKCS7_get_signed_attribute(si,
- NID_pkcs9_signingTime))
- {
- sign_time=X509_gmtime_adj(NULL,0);
- PKCS7_add_signed_attribute(si,
- NID_pkcs9_signingTime,
- V_ASN1_UTCTIME,sign_time);
- }
-
- /* Add digest */
- md_tmp=EVP_MD_CTX_md(&ctx_tmp);
- EVP_DigestFinal_ex(&ctx_tmp,md_data,&md_len);
- digest=M_ASN1_OCTET_STRING_new();
- M_ASN1_OCTET_STRING_set(digest,md_data,md_len);
- PKCS7_add_signed_attribute(si,
- NID_pkcs9_messageDigest,
- V_ASN1_OCTET_STRING,digest);
-
- /* Now sign the attributes */
- EVP_SignInit_ex(&ctx_tmp,md_tmp,NULL);
- alen = ASN1_item_i2d((ASN1_VALUE *)sk,&abuf,
- ASN1_ITEM_rptr(PKCS7_ATTR_SIGN));
- if(!abuf) goto err;
- EVP_SignUpdate(&ctx_tmp,abuf,alen);
- OPENSSL_free(abuf);
- }
-
-#ifndef OPENSSL_NO_DSA
- if (si->pkey->type == EVP_PKEY_DSA)
- ctx_tmp.digest=EVP_dss1();
-#endif
-#ifndef OPENSSL_NO_ECDSA
- if (si->pkey->type == EVP_PKEY_EC)
- ctx_tmp.digest=EVP_ecdsa();
-#endif
+{
+ int ret = 0;
+ int i, j;
+ BIO *btmp;
+ PKCS7_SIGNER_INFO *si;
+ EVP_MD_CTX *mdc, ctx_tmp;
+ STACK_OF(X509_ATTRIBUTE) *sk;
+ STACK_OF(PKCS7_SIGNER_INFO) *si_sk = NULL;
+ ASN1_OCTET_STRING *os = NULL;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_INVALID_NULL_POINTER);
+ return 0;
+ }
+
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_NO_CONTENT);
+ return 0;
+ }
+
+ EVP_MD_CTX_init(&ctx_tmp);
+ i = OBJ_obj2nid(p7->type);
+ p7->state = PKCS7_S_HEADER;
+
+ switch (i) {
+ case NID_pkcs7_data:
+ os = p7->d.data;
+ break;
+ case NID_pkcs7_signedAndEnveloped:
+ /* XXXXXXXXXXXXXXXX */
+ si_sk = p7->d.signed_and_enveloped->signer_info;
+ os = p7->d.signed_and_enveloped->enc_data->enc_data;
+ if (!os) {
+ os = M_ASN1_OCTET_STRING_new();
+ if (!os) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ p7->d.signed_and_enveloped->enc_data->enc_data = os;
+ }
+ break;
+ case NID_pkcs7_enveloped:
+ /* XXXXXXXXXXXXXXXX */
+ os = p7->d.enveloped->enc_data->enc_data;
+ if (!os) {
+ os = M_ASN1_OCTET_STRING_new();
+ if (!os) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ p7->d.enveloped->enc_data->enc_data = os;
+ }
+ break;
+ case NID_pkcs7_signed:
+ si_sk = p7->d.sign->signer_info;
+ os = PKCS7_get_octet_string(p7->d.sign->contents);
+ /* If detached data then the content is excluded */
+ if (PKCS7_type_is_data(p7->d.sign->contents) && p7->detached) {
+ M_ASN1_OCTET_STRING_free(os);
+ os = NULL;
+ p7->d.sign->contents->d.data = NULL;
+ }
+ break;
+
+ case NID_pkcs7_digest:
+ os = PKCS7_get_octet_string(p7->d.digest->contents);
+ /* If detached data then the content is excluded */
+ if (PKCS7_type_is_data(p7->d.digest->contents) && p7->detached) {
+ M_ASN1_OCTET_STRING_free(os);
+ os = NULL;
+ p7->d.digest->contents->d.data = NULL;
+ }
+ break;
+
+ default:
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+ goto err;
+ }
+
+ if (si_sk != NULL) {
+ for (i = 0; i < sk_PKCS7_SIGNER_INFO_num(si_sk); i++) {
+ si = sk_PKCS7_SIGNER_INFO_value(si_sk, i);
+ if (si->pkey == NULL)
+ continue;
+
+ j = OBJ_obj2nid(si->digest_alg->algorithm);
+
+ btmp = bio;
+
+ btmp = PKCS7_find_digest(&mdc, btmp, j);
+
+ if (btmp == NULL)
+ goto err;
+
+ /*
+ * We now have the EVP_MD_CTX, lets do the signing.
+ */
+ if (!EVP_MD_CTX_copy_ex(&ctx_tmp, mdc))
+ goto err;
+
+ sk = si->auth_attr;
+
+ /*
+ * If there are attributes, we add the digest attribute and only
+ * sign the attributes
+ */
+ if (sk_X509_ATTRIBUTE_num(sk) > 0) {
+ if (!do_pkcs7_signed_attrib(si, &ctx_tmp))
+ goto err;
+ } else {
+ unsigned char *abuf = NULL;
+ unsigned int abuflen;
+ abuflen = EVP_PKEY_size(si->pkey);
+ abuf = OPENSSL_malloc(abuflen);
+ if (!abuf)
+ goto err;
+
+ if (!EVP_SignFinal(&ctx_tmp, abuf, &abuflen, si->pkey)) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_EVP_LIB);
+ goto err;
+ }
+ ASN1_STRING_set0(si->enc_digest, abuf, abuflen);
+ }
+ }
+ } else if (i == NID_pkcs7_digest) {
+ unsigned char md_data[EVP_MAX_MD_SIZE];
+ unsigned int md_len;
+ if (!PKCS7_find_digest(&mdc, bio,
+ OBJ_obj2nid(p7->d.digest->md->algorithm)))
+ goto err;
+ if (!EVP_DigestFinal_ex(mdc, md_data, &md_len))
+ goto err;
+ M_ASN1_OCTET_STRING_set(p7->d.digest->digest, md_data, md_len);
+ }
+
+ if (!PKCS7_is_detached(p7)) {
+ /*
+ * NOTE(emilia): I think we only reach os == NULL here because detached
+ * digested data support is broken.
+ */
+ if (os == NULL)
+ goto err;
+ if (!(os->flags & ASN1_STRING_FLAG_NDEF)) {
+ char *cont;
+ long contlen;
+ btmp = BIO_find_type(bio, BIO_TYPE_MEM);
+ if (btmp == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_UNABLE_TO_FIND_MEM_BIO);
+ goto err;
+ }
+ contlen = BIO_get_mem_data(btmp, &cont);
+ /*
+ * Mark the BIO read only then we can use its copy of the data
+ * instead of making an extra copy.
+ */
+ BIO_set_flags(btmp, BIO_FLAGS_MEM_RDONLY);
+ BIO_set_mem_eof_return(btmp, 0);
+ ASN1_STRING_set0(os, (unsigned char *)cont, contlen);
+ }
+ }
+ ret = 1;
+ err:
+ EVP_MD_CTX_cleanup(&ctx_tmp);
+ return (ret);
+}
- if (!EVP_SignFinal(&ctx_tmp,(unsigned char *)buf->data,
- (unsigned int *)&buf->length,si->pkey))
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_EVP_LIB);
- goto err;
- }
- if (!ASN1_STRING_set(si->enc_digest,
- (unsigned char *)buf->data,buf->length))
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_ASN1_LIB);
- goto err;
- }
- }
- }
- else if (i == NID_pkcs7_digest)
- {
- unsigned char md_data[EVP_MAX_MD_SIZE];
- unsigned int md_len;
- if (!PKCS7_find_digest(&mdc, bio,
- OBJ_obj2nid(p7->d.digest->md->algorithm)))
- goto err;
- EVP_DigestFinal_ex(mdc,md_data,&md_len);
- M_ASN1_OCTET_STRING_set(p7->d.digest->digest, md_data, md_len);
- }
-
- if (!PKCS7_is_detached(p7))
- {
- btmp=BIO_find_type(bio,BIO_TYPE_MEM);
- if (btmp == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_UNABLE_TO_FIND_MEM_BIO);
- goto err;
- }
- BIO_get_mem_ptr(btmp,&buf_mem);
- /* Mark the BIO read only then we can use its copy of the data
- * instead of making an extra copy.
- */
- BIO_set_flags(btmp, BIO_FLAGS_MEM_RDONLY);
- BIO_set_mem_eof_return(btmp, 0);
- os->data = (unsigned char *)buf_mem->data;
- os->length = buf_mem->length;
-#if 0
- M_ASN1_OCTET_STRING_set(os,
- (unsigned char *)buf_mem->data,buf_mem->length);
-#endif
- }
- ret=1;
-err:
- EVP_MD_CTX_cleanup(&ctx_tmp);
- if (buf != NULL) BUF_MEM_free(buf);
- return(ret);
- }
+int PKCS7_SIGNER_INFO_sign(PKCS7_SIGNER_INFO *si)
+{
+ EVP_MD_CTX mctx;
+ EVP_PKEY_CTX *pctx;
+ unsigned char *abuf = NULL;
+ int alen;
+ size_t siglen;
+ const EVP_MD *md = NULL;
+
+ md = EVP_get_digestbyobj(si->digest_alg->algorithm);
+ if (md == NULL)
+ return 0;
+
+ EVP_MD_CTX_init(&mctx);
+ if (EVP_DigestSignInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
+ EVP_PKEY_CTRL_PKCS7_SIGN, 0, si) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SIGN, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ alen = ASN1_item_i2d((ASN1_VALUE *)si->auth_attr, &abuf,
+ ASN1_ITEM_rptr(PKCS7_ATTR_SIGN));
+ if (!abuf)
+ goto err;
+ if (EVP_DigestSignUpdate(&mctx, abuf, alen) <= 0)
+ goto err;
+ OPENSSL_free(abuf);
+ abuf = NULL;
+ if (EVP_DigestSignFinal(&mctx, NULL, &siglen) <= 0)
+ goto err;
+ abuf = OPENSSL_malloc(siglen);
+ if (!abuf)
+ goto err;
+ if (EVP_DigestSignFinal(&mctx, abuf, &siglen) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
+ EVP_PKEY_CTRL_PKCS7_SIGN, 1, si) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SIGN, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ EVP_MD_CTX_cleanup(&mctx);
+
+ ASN1_STRING_set0(si->enc_digest, abuf, siglen);
+
+ return 1;
+
+ err:
+ if (abuf)
+ OPENSSL_free(abuf);
+ EVP_MD_CTX_cleanup(&mctx);
+ return 0;
+
+}
int PKCS7_dataVerify(X509_STORE *cert_store, X509_STORE_CTX *ctx, BIO *bio,
- PKCS7 *p7, PKCS7_SIGNER_INFO *si)
- {
- PKCS7_ISSUER_AND_SERIAL *ias;
- int ret=0,i;
- STACK_OF(X509) *cert;
- X509 *x509;
-
- if (PKCS7_type_is_signed(p7))
- {
- cert=p7->d.sign->cert;
- }
- else if (PKCS7_type_is_signedAndEnveloped(p7))
- {
- cert=p7->d.signed_and_enveloped->cert;
- }
- else
- {
- PKCS7err(PKCS7_F_PKCS7_DATAVERIFY,PKCS7_R_WRONG_PKCS7_TYPE);
- goto err;
- }
- /* XXXXXXXXXXXXXXXXXXXXXXX */
- ias=si->issuer_and_serial;
-
- x509=X509_find_by_issuer_and_serial(cert,ias->issuer,ias->serial);
-
- /* were we able to find the cert in passed to us */
- if (x509 == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAVERIFY,PKCS7_R_UNABLE_TO_FIND_CERTIFICATE);
- goto err;
- }
-
- /* Lets verify */
- if(!X509_STORE_CTX_init(ctx,cert_store,x509,cert))
- {
- PKCS7err(PKCS7_F_PKCS7_DATAVERIFY,ERR_R_X509_LIB);
- goto err;
- }
- X509_STORE_CTX_set_purpose(ctx, X509_PURPOSE_SMIME_SIGN);
- i=X509_verify_cert(ctx);
- if (i <= 0)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAVERIFY,ERR_R_X509_LIB);
- X509_STORE_CTX_cleanup(ctx);
- goto err;
- }
- X509_STORE_CTX_cleanup(ctx);
-
- return PKCS7_signatureVerify(bio, p7, si, x509);
- err:
- return ret;
- }
+ PKCS7 *p7, PKCS7_SIGNER_INFO *si)
+{
+ PKCS7_ISSUER_AND_SERIAL *ias;
+ int ret = 0, i;
+ STACK_OF(X509) *cert;
+ X509 *x509;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_INVALID_NULL_POINTER);
+ return 0;
+ }
+
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_NO_CONTENT);
+ return 0;
+ }
+
+ if (PKCS7_type_is_signed(p7)) {
+ cert = p7->d.sign->cert;
+ } else if (PKCS7_type_is_signedAndEnveloped(p7)) {
+ cert = p7->d.signed_and_enveloped->cert;
+ } else {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_WRONG_PKCS7_TYPE);
+ goto err;
+ }
+ /* XXXXXXXXXXXXXXXXXXXXXXX */
+ ias = si->issuer_and_serial;
+
+ x509 = X509_find_by_issuer_and_serial(cert, ias->issuer, ias->serial);
+
+ /* were we able to find the cert in passed to us */
+ if (x509 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY,
+ PKCS7_R_UNABLE_TO_FIND_CERTIFICATE);
+ goto err;
+ }
+
+ /* Lets verify */
+ if (!X509_STORE_CTX_init(ctx, cert_store, x509, cert)) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, ERR_R_X509_LIB);
+ goto err;
+ }
+ X509_STORE_CTX_set_purpose(ctx, X509_PURPOSE_SMIME_SIGN);
+ i = X509_verify_cert(ctx);
+ if (i <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, ERR_R_X509_LIB);
+ X509_STORE_CTX_cleanup(ctx);
+ goto err;
+ }
+ X509_STORE_CTX_cleanup(ctx);
+
+ return PKCS7_signatureVerify(bio, p7, si, x509);
+ err:
+ return ret;
+}
int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si,
- X509 *x509)
- {
- ASN1_OCTET_STRING *os;
- EVP_MD_CTX mdc_tmp,*mdc;
- int ret=0,i;
- int md_type;
- STACK_OF(X509_ATTRIBUTE) *sk;
- BIO *btmp;
- EVP_PKEY *pkey;
-
- EVP_MD_CTX_init(&mdc_tmp);
-
- if (!PKCS7_type_is_signed(p7) &&
- !PKCS7_type_is_signedAndEnveloped(p7)) {
- PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
- PKCS7_R_WRONG_PKCS7_TYPE);
- goto err;
- }
-
- md_type=OBJ_obj2nid(si->digest_alg->algorithm);
-
- btmp=bio;
- for (;;)
- {
- if ((btmp == NULL) ||
- ((btmp=BIO_find_type(btmp,BIO_TYPE_MD)) == NULL))
- {
- PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
- PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
- goto err;
- }
- BIO_get_md_ctx(btmp,&mdc);
- if (mdc == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
- ERR_R_INTERNAL_ERROR);
- goto err;
- }
- if (EVP_MD_CTX_type(mdc) == md_type)
- break;
- /* Workaround for some broken clients that put the signature
- * OID instead of the digest OID in digest_alg->algorithm
- */
- if (EVP_MD_pkey_type(EVP_MD_CTX_md(mdc)) == md_type)
- break;
- btmp=BIO_next(btmp);
- }
-
- /* mdc is the digest ctx that we want, unless there are attributes,
- * in which case the digest is the signed attributes */
- EVP_MD_CTX_copy_ex(&mdc_tmp,mdc);
-
- sk=si->auth_attr;
- if ((sk != NULL) && (sk_X509_ATTRIBUTE_num(sk) != 0))
- {
- unsigned char md_dat[EVP_MAX_MD_SIZE], *abuf = NULL;
- unsigned int md_len, alen;
- ASN1_OCTET_STRING *message_digest;
-
- EVP_DigestFinal_ex(&mdc_tmp,md_dat,&md_len);
- message_digest=PKCS7_digest_from_attributes(sk);
- if (!message_digest)
- {
- PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
- PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
- goto err;
- }
- if ((message_digest->length != (int)md_len) ||
- (memcmp(message_digest->data,md_dat,md_len)))
- {
-#if 0
+ X509 *x509)
{
-int ii;
-for (ii=0; ii<message_digest->length; ii++)
- printf("%02X",message_digest->data[ii]); printf(" sent\n");
-for (ii=0; ii<md_len; ii++) printf("%02X",md_dat[ii]); printf(" calc\n");
-}
-#endif
- PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
- PKCS7_R_DIGEST_FAILURE);
- ret= -1;
- goto err;
- }
-
- EVP_VerifyInit_ex(&mdc_tmp,EVP_get_digestbynid(md_type), NULL);
-
- alen = ASN1_item_i2d((ASN1_VALUE *)sk, &abuf,
- ASN1_ITEM_rptr(PKCS7_ATTR_VERIFY));
- EVP_VerifyUpdate(&mdc_tmp, abuf, alen);
-
- OPENSSL_free(abuf);
- }
-
- os=si->enc_digest;
- pkey = X509_get_pubkey(x509);
- if (!pkey)
- {
- ret = -1;
- goto err;
- }
-#ifndef OPENSSL_NO_DSA
- if(pkey->type == EVP_PKEY_DSA) mdc_tmp.digest=EVP_dss1();
-#endif
-#ifndef OPENSSL_NO_ECDSA
- if (pkey->type == EVP_PKEY_EC) mdc_tmp.digest=EVP_ecdsa();
+ ASN1_OCTET_STRING *os;
+ EVP_MD_CTX mdc_tmp, *mdc;
+ int ret = 0, i;
+ int md_type;
+ STACK_OF(X509_ATTRIBUTE) *sk;
+ BIO *btmp;
+ EVP_PKEY *pkey;
+
+ EVP_MD_CTX_init(&mdc_tmp);
+
+ if (!PKCS7_type_is_signed(p7) && !PKCS7_type_is_signedAndEnveloped(p7)) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_WRONG_PKCS7_TYPE);
+ goto err;
+ }
+
+ md_type = OBJ_obj2nid(si->digest_alg->algorithm);
+
+ btmp = bio;
+ for (;;) {
+ if ((btmp == NULL) ||
+ ((btmp = BIO_find_type(btmp, BIO_TYPE_MD)) == NULL)) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
+ PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
+ goto err;
+ }
+ BIO_get_md_ctx(btmp, &mdc);
+ if (mdc == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+ if (EVP_MD_CTX_type(mdc) == md_type)
+ break;
+ /*
+ * Workaround for some broken clients that put the signature OID
+ * instead of the digest OID in digest_alg->algorithm
+ */
+ if (EVP_MD_pkey_type(EVP_MD_CTX_md(mdc)) == md_type)
+ break;
+ btmp = BIO_next(btmp);
+ }
+
+ /*
+ * mdc is the digest ctx that we want, unless there are attributes, in
+ * which case the digest is the signed attributes
+ */
+ if (!EVP_MD_CTX_copy_ex(&mdc_tmp, mdc))
+ goto err;
+
+ sk = si->auth_attr;
+ if ((sk != NULL) && (sk_X509_ATTRIBUTE_num(sk) != 0)) {
+ unsigned char md_dat[EVP_MAX_MD_SIZE], *abuf = NULL;
+ unsigned int md_len;
+ int alen;
+ ASN1_OCTET_STRING *message_digest;
+
+ if (!EVP_DigestFinal_ex(&mdc_tmp, md_dat, &md_len))
+ goto err;
+ message_digest = PKCS7_digest_from_attributes(sk);
+ if (!message_digest) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
+ PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
+ goto err;
+ }
+ if ((message_digest->length != (int)md_len) ||
+ (memcmp(message_digest->data, md_dat, md_len))) {
+#if 0
+ {
+ int ii;
+ for (ii = 0; ii < message_digest->length; ii++)
+ printf("%02X", message_digest->data[ii]);
+ printf(" sent\n");
+ for (ii = 0; ii < md_len; ii++)
+ printf("%02X", md_dat[ii]);
+ printf(" calc\n");
+ }
#endif
-
- i=EVP_VerifyFinal(&mdc_tmp,os->data,os->length, pkey);
- EVP_PKEY_free(pkey);
- if (i <= 0)
- {
- PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
- PKCS7_R_SIGNATURE_FAILURE);
- ret= -1;
- goto err;
- }
- else
- ret=1;
-err:
- EVP_MD_CTX_cleanup(&mdc_tmp);
- return(ret);
- }
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_DIGEST_FAILURE);
+ ret = -1;
+ goto err;
+ }
+
+ if (!EVP_VerifyInit_ex(&mdc_tmp, EVP_get_digestbynid(md_type), NULL))
+ goto err;
+
+ alen = ASN1_item_i2d((ASN1_VALUE *)sk, &abuf,
+ ASN1_ITEM_rptr(PKCS7_ATTR_VERIFY));
+ if (alen <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, ERR_R_ASN1_LIB);
+ ret = -1;
+ goto err;
+ }
+ if (!EVP_VerifyUpdate(&mdc_tmp, abuf, alen))
+ goto err;
+
+ OPENSSL_free(abuf);
+ }
+
+ os = si->enc_digest;
+ pkey = X509_get_pubkey(x509);
+ if (!pkey) {
+ ret = -1;
+ goto err;
+ }
+
+ i = EVP_VerifyFinal(&mdc_tmp, os->data, os->length, pkey);
+ EVP_PKEY_free(pkey);
+ if (i <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_SIGNATURE_FAILURE);
+ ret = -1;
+ goto err;
+ } else
+ ret = 1;
+ err:
+ EVP_MD_CTX_cleanup(&mdc_tmp);
+ return (ret);
+}
PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx)
- {
- STACK_OF(PKCS7_RECIP_INFO) *rsk;
- PKCS7_RECIP_INFO *ri;
- int i;
-
- i=OBJ_obj2nid(p7->type);
- if (i != NID_pkcs7_signedAndEnveloped) return(NULL);
- rsk=p7->d.signed_and_enveloped->recipientinfo;
- ri=sk_PKCS7_RECIP_INFO_value(rsk,0);
- if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);
- ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);
- return(ri->issuer_and_serial);
- }
+{
+ STACK_OF(PKCS7_RECIP_INFO) *rsk;
+ PKCS7_RECIP_INFO *ri;
+ int i;
+
+ i = OBJ_obj2nid(p7->type);
+ if (i != NID_pkcs7_signedAndEnveloped)
+ return NULL;
+ if (p7->d.signed_and_enveloped == NULL)
+ return NULL;
+ rsk = p7->d.signed_and_enveloped->recipientinfo;
+ if (rsk == NULL)
+ return NULL;
+ if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx)
+ return (NULL);
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, idx);
+ return (ri->issuer_and_serial);
+}
ASN1_TYPE *PKCS7_get_signed_attribute(PKCS7_SIGNER_INFO *si, int nid)
- {
- return(get_attribute(si->auth_attr,nid));
- }
+{
+ return (get_attribute(si->auth_attr, nid));
+}
ASN1_TYPE *PKCS7_get_attribute(PKCS7_SIGNER_INFO *si, int nid)
- {
- return(get_attribute(si->unauth_attr,nid));
- }
+{
+ return (get_attribute(si->unauth_attr, nid));
+}
static ASN1_TYPE *get_attribute(STACK_OF(X509_ATTRIBUTE) *sk, int nid)
- {
- int i;
- X509_ATTRIBUTE *xa;
- ASN1_OBJECT *o;
-
- o=OBJ_nid2obj(nid);
- if (!o || !sk) return(NULL);
- for (i=0; i<sk_X509_ATTRIBUTE_num(sk); i++)
- {
- xa=sk_X509_ATTRIBUTE_value(sk,i);
- if (OBJ_cmp(xa->object,o) == 0)
- {
- if (!xa->single && sk_ASN1_TYPE_num(xa->value.set))
- return(sk_ASN1_TYPE_value(xa->value.set,0));
- else
- return(NULL);
- }
- }
- return(NULL);
- }
+{
+ int i;
+ X509_ATTRIBUTE *xa;
+ ASN1_OBJECT *o;
+
+ o = OBJ_nid2obj(nid);
+ if (!o || !sk)
+ return (NULL);
+ for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
+ xa = sk_X509_ATTRIBUTE_value(sk, i);
+ if (OBJ_cmp(xa->object, o) == 0) {
+ if (!xa->single && sk_ASN1_TYPE_num(xa->value.set))
+ return (sk_ASN1_TYPE_value(xa->value.set, 0));
+ else
+ return (NULL);
+ }
+ }
+ return (NULL);
+}
ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk)
{
- ASN1_TYPE *astype;
- if(!(astype = get_attribute(sk, NID_pkcs9_messageDigest))) return NULL;
- return astype->value.octet_string;
+ ASN1_TYPE *astype;
+ if (!(astype = get_attribute(sk, NID_pkcs9_messageDigest)))
+ return NULL;
+ return astype->value.octet_string;
}
int PKCS7_set_signed_attributes(PKCS7_SIGNER_INFO *p7si,
- STACK_OF(X509_ATTRIBUTE) *sk)
- {
- int i;
-
- if (p7si->auth_attr != NULL)
- sk_X509_ATTRIBUTE_pop_free(p7si->auth_attr,X509_ATTRIBUTE_free);
- p7si->auth_attr=sk_X509_ATTRIBUTE_dup(sk);
- for (i=0; i<sk_X509_ATTRIBUTE_num(sk); i++)
- {
- if ((sk_X509_ATTRIBUTE_set(p7si->auth_attr,i,
- X509_ATTRIBUTE_dup(sk_X509_ATTRIBUTE_value(sk,i))))
- == NULL)
- return(0);
- }
- return(1);
- }
-
-int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si, STACK_OF(X509_ATTRIBUTE) *sk)
- {
- int i;
-
- if (p7si->unauth_attr != NULL)
- sk_X509_ATTRIBUTE_pop_free(p7si->unauth_attr,
- X509_ATTRIBUTE_free);
- p7si->unauth_attr=sk_X509_ATTRIBUTE_dup(sk);
- for (i=0; i<sk_X509_ATTRIBUTE_num(sk); i++)
- {
- if ((sk_X509_ATTRIBUTE_set(p7si->unauth_attr,i,
- X509_ATTRIBUTE_dup(sk_X509_ATTRIBUTE_value(sk,i))))
- == NULL)
- return(0);
- }
- return(1);
- }
+ STACK_OF(X509_ATTRIBUTE) *sk)
+{
+ int i;
+
+ if (p7si->auth_attr != NULL)
+ sk_X509_ATTRIBUTE_pop_free(p7si->auth_attr, X509_ATTRIBUTE_free);
+ p7si->auth_attr = sk_X509_ATTRIBUTE_dup(sk);
+ if (p7si->auth_attr == NULL)
+ return 0;
+ for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
+ if ((sk_X509_ATTRIBUTE_set(p7si->auth_attr, i,
+ X509_ATTRIBUTE_dup(sk_X509_ATTRIBUTE_value
+ (sk, i))))
+ == NULL)
+ return (0);
+ }
+ return (1);
+}
+
+int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si,
+ STACK_OF(X509_ATTRIBUTE) *sk)
+{
+ int i;
+
+ if (p7si->unauth_attr != NULL)
+ sk_X509_ATTRIBUTE_pop_free(p7si->unauth_attr, X509_ATTRIBUTE_free);
+ p7si->unauth_attr = sk_X509_ATTRIBUTE_dup(sk);
+ if (p7si->unauth_attr == NULL)
+ return 0;
+ for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
+ if ((sk_X509_ATTRIBUTE_set(p7si->unauth_attr, i,
+ X509_ATTRIBUTE_dup(sk_X509_ATTRIBUTE_value
+ (sk, i))))
+ == NULL)
+ return (0);
+ }
+ return (1);
+}
int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
- void *value)
- {
- return(add_attribute(&(p7si->auth_attr),nid,atrtype,value));
- }
+ void *value)
+{
+ return (add_attribute(&(p7si->auth_attr), nid, atrtype, value));
+}
int PKCS7_add_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
- void *value)
- {
- return(add_attribute(&(p7si->unauth_attr),nid,atrtype,value));
- }
+ void *value)
+{
+ return (add_attribute(&(p7si->unauth_attr), nid, atrtype, value));
+}
static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype,
- void *value)
- {
- X509_ATTRIBUTE *attr=NULL;
-
- if (*sk == NULL)
- {
- *sk = sk_X509_ATTRIBUTE_new_null();
-new_attrib:
- attr=X509_ATTRIBUTE_create(nid,atrtype,value);
- sk_X509_ATTRIBUTE_push(*sk,attr);
- }
- else
- {
- int i;
-
- for (i=0; i<sk_X509_ATTRIBUTE_num(*sk); i++)
- {
- attr=sk_X509_ATTRIBUTE_value(*sk,i);
- if (OBJ_obj2nid(attr->object) == nid)
- {
- X509_ATTRIBUTE_free(attr);
- attr=X509_ATTRIBUTE_create(nid,atrtype,value);
- sk_X509_ATTRIBUTE_set(*sk,i,attr);
- goto end;
- }
- }
- goto new_attrib;
- }
-end:
- return(1);
- }
-
+ void *value)
+{
+ X509_ATTRIBUTE *attr = NULL;
+
+ if (*sk == NULL) {
+ *sk = sk_X509_ATTRIBUTE_new_null();
+ if (*sk == NULL)
+ return 0;
+ new_attrib:
+ if (!(attr = X509_ATTRIBUTE_create(nid, atrtype, value)))
+ return 0;
+ if (!sk_X509_ATTRIBUTE_push(*sk, attr)) {
+ X509_ATTRIBUTE_free(attr);
+ return 0;
+ }
+ } else {
+ int i;
+
+ for (i = 0; i < sk_X509_ATTRIBUTE_num(*sk); i++) {
+ attr = sk_X509_ATTRIBUTE_value(*sk, i);
+ if (OBJ_obj2nid(attr->object) == nid) {
+ X509_ATTRIBUTE_free(attr);
+ attr = X509_ATTRIBUTE_create(nid, atrtype, value);
+ if (attr == NULL)
+ return 0;
+ if (!sk_X509_ATTRIBUTE_set(*sk, i, attr)) {
+ X509_ATTRIBUTE_free(attr);
+ return 0;
+ }
+ goto end;
+ }
+ }
+ goto new_attrib;
+ }
+ end:
+ return (1);
+}
projects / openssl.git / blobdiff