#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);
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;
+
+ }
+
+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;
+ int 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;
+
+ }
+
+
+
BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
{
- int i,j;
+ int i;
BIO *out=NULL,*btmp=NULL;
- X509_ALGOR *xa;
- const EVP_MD *evp_md;
+ 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;
{
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;
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;
}
- 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_DATAINIT,ERR_R_BIO_LIB);
- goto err;
- }
-
- j=OBJ_obj2nid(xa->algorithm);
- evp_md=EVP_get_digestbyname(OBJ_nid2sn(j));
- if (evp_md == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_UNKNOWN_DIGEST_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;
- BIO_set_md(btmp,evp_md);
- if (out == NULL)
- out=btmp;
- else
- BIO_push(out,btmp);
- btmp=NULL;
- }
- }
+ 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)
BIO_get_cipher_ctx(btmp, &ctx);
keylen=EVP_CIPHER_key_length(evp_cipher);
ivlen=EVP_CIPHER_iv_length(evp_cipher);
- if (RAND_bytes(key,keylen) <= 0)
- goto err;
xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
if (ivlen > 0) RAND_pseudo_bytes(iv,ivlen);
- EVP_CipherInit_ex(ctx, evp_cipher, NULL, key, iv, 1);
+ 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)
}
/* 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);
+ if (pkcs7_encode_rinfo(ri, key, keylen) <= 0)
goto err;
- }
- M_ASN1_OCTET_STRING_set(ri->enc_key,tmp,jj);
}
- OPENSSL_free(tmp);
OPENSSL_cleanse(key, keylen);
if (out == NULL)
{
if (PKCS7_is_detached(p7))
bio=BIO_new(BIO_s_null());
- else
+ else if (os && os->length > 0)
+ bio = BIO_new_mem_buf(os->data, os->length);
+ if(bio == NULL)
{
- ASN1_OCTET_STRING *os;
- os = PKCS7_get_octet_string(p7->d.sign->contents);
- 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=BIO_new(BIO_s_mem());
+ BIO_set_mem_eof_return(bio,0);
}
- }
+ }
BIO_push(out,bio);
bio=NULL;
if (0)
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)
{
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_cipherbyname(OBJ_nid2sn(OBJ_obj2nid(enc_alg->algorithm)));
+ evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
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_cipherbyname(OBJ_nid2sn(OBJ_obj2nid(enc_alg->algorithm)));
+ evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
}
j=OBJ_obj2nid(xa->algorithm);
- evp_md=EVP_get_digestbyname(OBJ_nid2sn(j));
+ evp_md=EVP_get_digestbynid(j);
if (evp_md == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNKNOWN_DIGEST_TYPE);
* (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;
+ 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;
+ }
}
jj=EVP_PKEY_size(pkey);
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)
+ /* If we haven't got a certificate try each ri in turn */
+
+ if (pcert == NULL)
{
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_EVP_LIB);
- goto err;
+ for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
+ {
+ ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
+ jj=EVP_PKEY_decrypt_old(tmp,
+ M_ASN1_STRING_data(ri->enc_key),
+ M_ASN1_STRING_length(ri->enc_key),
+ pkey);
+ if (jj > 0)
+ break;
+ ERR_clear_error();
+ ri = NULL;
+ }
+ if (ri == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_NO_RECIPIENT_MATCHES_KEY);
+ goto err;
+ }
+ }
+ else
+ {
+ jj=EVP_PKEY_decrypt_old(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);
- EVP_CipherInit_ex(evp_ctx,evp_cipher,NULL,NULL,NULL,0);
+ 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;
goto err;
}
}
- EVP_CipherInit_ex(evp_ctx,NULL,NULL,tmp,NULL,0);
+ if (EVP_CipherInit_ex(evp_ctx,NULL,NULL,tmp,NULL,0) <= 0)
+ goto err;
OPENSSL_cleanse(tmp,jj);
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_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;
+ }
+
int PKCS7_dataFinal(PKCS7 *p7, BIO *bio)
{
int ret=0;
case NID_pkcs7_signedAndEnveloped:
/* XXXXXXXXXXXXXXXX */
si_sk=p7->d.signed_and_enveloped->signer_info;
- os=M_ASN1_OCTET_STRING_new();
+ if (!(os=M_ASN1_OCTET_STRING_new()))
+ {
+ 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=M_ASN1_OCTET_STRING_new();
+ if (!(os=M_ASN1_OCTET_STRING_new()))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
p7->d.enveloped->enc_data->enc_data=os;
break;
case NID_pkcs7_signed:
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);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_BIO_LIB);
goto err;
}
for (i=0; i<sk_PKCS7_SIGNER_INFO_num(si_sk); i++)
j=OBJ_obj2nid(si->digest_alg->algorithm);
btmp=bio;
- for (;;)
- {
- if ((btmp=BIO_find_type(btmp,BIO_TYPE_MD))
- == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
- goto err;
- }
- BIO_get_md_ctx(btmp,&mdc);
- if (mdc == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_INTERNAL_ERROR);
- goto err;
- }
- if (EVP_MD_CTX_type(mdc) == j)
- break;
- else
- btmp=BIO_next(btmp);
- }
-
+
+ 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);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_BIO_LIB);
goto err;
}
if (!PKCS7_get_signed_attribute(si,
NID_pkcs9_signingTime))
{
- sign_time=X509_gmtime_adj(NULL,0);
+ if (!(sign_time=X509_gmtime_adj(NULL,0)))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
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);
+ if (!(digest=M_ASN1_OCTET_STRING_new()))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (!M_ASN1_OCTET_STRING_set(digest,md_data,
+ md_len))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
PKCS7_add_signed_attribute(si,
NID_pkcs9_messageDigest,
V_ASN1_OCTET_STRING,digest);
if (!EVP_SignFinal(&ctx_tmp,(unsigned char *)buf->data,
(unsigned int *)&buf->length,si->pkey))
{
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_EVP_LIB);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,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);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,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);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,PKCS7_R_UNABLE_TO_FIND_MEM_BIO);
goto err;
}
BIO_get_mem_ptr(btmp,&buf_mem);
ret = -1;
goto err;
}
+#if 0
#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();
+#endif
#endif
i=EVP_VerifyFinal(&mdc_tmp,os->data,os->length, pkey);
projects / openssl.git / blobdiff