int main(int argc, char const *argv[])
{
PKCS7 *p7;
FILE *fp = NULL;
PKCS7_SIGNER_INFO *si;
STACK_OF(PKCS7_SIGNER_INFO) *sk;
X509_STORE_CTX cert_ctx;
X509_STORE *cert_store;
BIO *mybio;
int ret, len, i;
unsigned char *errordesc;
unsigned long errorno;
unsigned char data[2028], *p, *buf;
OpenSSL_add_all_algorithms();
fp = fopen("p7signed.cer", "rb");
if(fp == NULL)
return 0;
len = fread(data, 1, 2048, fp);
fclose(fp);
p = data;
p7 = d2i_PKCS7(NULL, (const unsigned char **)&p, len);
mybio = PKCS7_dataInit(p7, NULL);
sk = PKCS7_get_signer_info(p7);
if(sk == NULL)
{
printf("no signer in p7\n");
return 0;
}
cert_store=X509_STORE_new();
X509_STORE_set_verify_cb_func(cert_store,verify_callback);//必须要有回调设置
for(i = 0; i < sk_PKCS7_SIGNER_INFO_num(sk); i++)
{
si = sk_PKCS7_SIGNER_INFO_value(sk, i);
ret = PKCS7_dataVerify(cert_store, &cert_ctx, mybio, p7, si);
if(ret == 1)
printf("succ in pkcs7 signed data verify\n");
else
printf("fail in pkcs7 signed data verify\n");
}
X509_STORE_free(cert_store);
PKCS7_free(p7);
return 1;
}
long /* return serial on success, -1 on failure */
smime_get_signer_info(const char* signed_entity,
int info_ix, /* 0 = first signer */
char** issuer) /* DN of the issuer */
{
int serial = -1;
PKCS7* p7 = NULL;
STACK_OF(PKCS7_SIGNER_INFO)* sigs = NULL;
PKCS7_SIGNER_INFO* si;
if (!signed_entity || !issuer) GOTO_ERR("NULL arg(s)");
*issuer = NULL;
if (!(p7 = get_pkcs7_from_pem(signed_entity))) goto err;
if (!(sigs=PKCS7_get_signer_info(p7)))
GOTO_ERR("13 no sigs? (PKCS7_get_signer_info)");
if (info_ix >= sk_PKCS7_SIGNER_INFO_num(sigs))
GOTO_ERR("No more signers. info_ix too large.");
if (!(si=sk_PKCS7_SIGNER_INFO_value(sigs,info_ix)))
GOTO_ERR("NULL signer info");
*issuer = X509_NAME_oneline(si->issuer_and_serial->issuer, NULL,0);
serial = ASN1_INTEGER_get(si->issuer_and_serial->serial);
err:
if (p7) PKCS7_free(p7);
return serial;
}
static VALUE
ossl_pkcs7_get_signer(VALUE self)
{
PKCS7 *pkcs7;
STACK_OF(PKCS7_SIGNER_INFO) *sk;
PKCS7_SIGNER_INFO *si;
int num, i;
VALUE ary;
GetPKCS7(self, pkcs7);
if (!(sk = PKCS7_get_signer_info(pkcs7))) {
OSSL_Debug("OpenSSL::PKCS7#get_signer_info == NULL!");
return rb_ary_new();
}
if ((num = sk_PKCS7_SIGNER_INFO_num(sk)) < 0) {
ossl_raise(ePKCS7Error, "Negative number of signers!");
}
ary = rb_ary_new2(num);
for (i=0; i<num; i++) {
si = sk_PKCS7_SIGNER_INFO_value(sk, i);
rb_ary_push(ary, ossl_pkcs7si_new(si));
}
return ary;
}
PKCS7_SIGNER_INFO * PKI_X509_PKCS7_get_signer_info ( PKI_X509_PKCS7 *p7,
int idx ) {
int type = 0;
int cnt = 0;
STACK_OF(PKCS7_SIGNER_INFO) *sk = NULL;
PKCS7_SIGNER_INFO *ret = NULL;
PKI_X509_PKCS7_VALUE *value = NULL;
if ( !p7 || !p7->value ) return ( NULL );
type = PKI_X509_PKCS7_get_type ( p7 );
value = p7->value;
if( type == PKI_X509_PKCS7_TYPE_SIGNED ) {
sk = value->d.sign->signer_info;
} else if ( type == PKI_X509_PKCS7_TYPE_SIGNEDANDENCRYPTED ) {
sk = value->d.signed_and_enveloped->signer_info;
} else {
return NULL;
}
//PKI_log_debug( "PKI_X509_PKCS7_get_signer_info()::"
// "Elements in stack [%d]", cnt );
//PKI_log_debug( "PKI_X509_PKCS7_get_signer_info()::"
// "Requested Element [%d]", idx );
if((cnt = sk_PKCS7_SIGNER_INFO_num ( sk )) <= 0 ) {
return ( NULL );
}
if (idx > cnt ) return NULL;
if( idx >= 0 ) {
ret = sk_PKCS7_SIGNER_INFO_value( sk, idx );
} else {
// PKI_log_debug( "_get_signer_info()::Return Last Element");
ret = sk_PKCS7_SIGNER_INFO_value( sk, cnt-1 );
}
return (ret);
}
int PKCS7_dataFinal(PKCS7 *p7, BIO *bio)
{
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);
}
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;
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 */
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:
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_DATAFINAL,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_DATAFINAL,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))
{
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);
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);
/* 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
if (!EVP_SignFinal(&ctx_tmp,(unsigned char *)buf->data,
(unsigned int *)&buf->length,si->pkey))
{
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_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_DATAFINAL,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);
}
static int pk7_verify(X509_STORE *cert_store, PKCS7 *p7, BIO *detached, char *ebuf, int ebufsize)
{
PKCS7_SIGNER_INFO *si;
verify_context vctx;
BIO *p7bio=NULL;
char readbuf[1024*4];
int res = 1;
int i;
STACK_OF(PKCS7_SIGNER_INFO) *sk;
vctx.err = X509_V_OK;
ebuf[0] = 0;
OpenSSL_add_all_algorithms();
EVP_add_digest(EVP_md5());
EVP_add_digest(EVP_sha1());
ERR_load_crypto_strings();
ERR_clear_error();
X509_VERIFY_PARAM_set_flags(cert_store->param, X509_V_FLAG_CB_ISSUER_CHECK);
X509_STORE_set_verify_cb_func(cert_store, verify_callback);
p7bio = PKCS7_dataInit(p7, detached);
/* We now have to 'read' from p7bio to calculate digests etc. */
while (BIO_read(p7bio, readbuf, sizeof(readbuf)) > 0)
;
/* We can now verify signatures */
sk = PKCS7_get_signer_info(p7);
if (sk == NULL)
{
/* there are no signatures on this data */
res = 0;
fz_strlcpy(ebuf, "No signatures", ebufsize);
goto exit;
}
for (i=0; i<sk_PKCS7_SIGNER_INFO_num(sk); i++)
{
int rc;
si = sk_PKCS7_SIGNER_INFO_value(sk, i);
rc = PKCS7_dataVerify(cert_store, &vctx.x509_ctx, p7bio,p7, si);
if (rc <= 0 || vctx.err != X509_V_OK)
{
char tbuf[120];
if (rc <= 0)
{
fz_strlcpy(ebuf, ERR_error_string(ERR_get_error(), tbuf), ebufsize);
}
else
{
/* Error while checking the certificate chain */
snprintf(ebuf, ebufsize, "%s(%d): %s", X509_verify_cert_error_string(vctx.err), vctx.err, vctx.certdesc);
}
res = 0;
goto exit;
}
}
exit:
X509_STORE_CTX_cleanup(&vctx.x509_ctx);
ERR_free_strings();
return res;
}
/* Load a DER formatted file into internal SCEP_MSG structure */
SCEP_MSG *d2i_SCEP_MSG_bio (BIO *inbio) {
BIO *outbio = NULL;
BIO *p7bio = NULL;
PKCS7 *p7 = NULL;
// BIO *bio_err = NULL;
SCEP_MSG *msg = NULL;
int bytes, length, fd, used;
int nMessageType = -1, nPkiStatus = -1;
PKCS7_SIGNER_INFO *si = NULL;
PKCS7_RECIP_INFO *ri = NULL;
STACK_OF(X509_ATTRIBUTE) *sig_attribs = NULL;
PKCS7 *p7env = NULL;
SCEP_RECIP_INFO *rinfo = NULL;
char buffer[1024];
char *data = NULL;
char *tmp_string = NULL;
int debug = 0;
int i;
// if ((bio_err=BIO_new(BIO_s_file())) != NULL)
// BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
msg = (SCEP_MSG *) OPENSSL_malloc ( sizeof(SCEP_MSG));
if( msg == NULL ) return (NULL);
/* decode the data */
p7 = d2i_PKCS7_bio(inbio, NULL);
if (p7 == NULL) goto err;
/* make sure this is a signed data PKCS#7 */
// if (!PKCS7_type_is_signed(p7)) {
// BIO_printf(bio_err, "%s:%d: supplied PKCS#7 is not signed "
// "data\n", __FILE__, __LINE__);
// goto err;
// }
/* create BIOs to read signed content data from */
p7bio = PKCS7_dataInit(p7, NULL);
if (p7bio == NULL) goto err;
/* Use an outbio and fill it with data from the p7 */
outbio = BIO_new(BIO_s_mem());
used = 0;
for (;;) {
bytes = BIO_read(p7bio, buffer, sizeof(buffer));
used += bytes;
if (bytes <= 0) break;
BIO_write(outbio, buffer, bytes);
}
BIO_flush(outbio);
/* there should be exactly one signer info */
msg->sk_signer_info = PKCS7_get_signer_info(p7);
if (msg->sk_signer_info == NULL) {
goto err;
}
if (sk_PKCS7_SIGNER_INFO_num(msg->sk_signer_info) != 1) {
goto err;
}
si = sk_PKCS7_SIGNER_INFO_value(msg->sk_signer_info, 0);
msg->signer_ias = si->issuer_and_serial;
msg->signer_cert = PKCS7_cert_from_signer_info( p7, si );
/* If msg->signer_cert == NULL there is no signer certificate,
* otherwise the certificate is included into the PKCS#7 envelope
* this certificate may be self signed, but for the PKCS7_
* signatureVerify method, this does not matter */
/* verify the PKCS#7 using the store just constructed */
if (PKCS7_signatureVerify(p7bio, p7, si,
msg->signer_cert) <= 0) {
// BIO_printf(bio_err, "%s:%d: verification failed\n", __FILE__,
// __LINE__);
goto err;
}
/* extract the signed attributes */
msg->attrs = PKCS7_get_signed_attributes(si);
if ((msg->attrs == NULL) || (sk_X509_ATTRIBUTE_num(msg->attrs) == 0)){
goto err;
}
tmp_string = (char *)
SCEP_get_string_attr_by_name(msg->attrs, "messageType");
if( tmp_string != NULL ) {
msg->messageType = atoi( tmp_string );
free( tmp_string );
tmp_string = NULL;
} else {
msg->messageType = -1;
}
/* unpack the internal PKCS#7 */
p7env = d2i_PKCS7_bio(outbio, NULL);
if (p7env == NULL) return msg;
i=OBJ_obj2nid(p7env->type);
msg->env_data.NID_p7data = i;
msg->env_data.p7env = p7env;
/* use a commodity variable */
rinfo = &(msg->env_data.recip_info);
switch(i) {
case NID_pkcs7_signed:
break;
case NID_pkcs7_signedAndEnveloped:
rinfo->sk_recip_info =
p7env->d.signed_and_enveloped->recipientinfo;
break;
case NID_pkcs7_enveloped:
rinfo->sk_recip_info =
p7env->d.enveloped->recipientinfo;
break;
default:
// BIO_printf( bio_err, "%s:%d: unknown PKCS7 structure\n",
// __FILE__, __LINE__);
break;
}
/* Lets do the pub key stuff :-) */
// FIXME: usaly only 1, but pix has 4 in structure - to be clarified...
// so currently set to 4 to get it working with cisco-pix
if( sk_PKCS7_RECIP_INFO_num(rinfo->sk_recip_info) > 4 ) {
goto err;
}
/* Let's get the recipient info at stack num 0, the first and
* hopefully, the only one */
ri = sk_PKCS7_RECIP_INFO_value( rinfo->sk_recip_info, 0);
/* Usually certificates are not present, but in case the standard
* will be updated... */
// if (debug && ri->cert == NULL) {
// BIO_printf( bio_err,
// "%s:%d: Recipient info cert %d missing\n",
// __FILE__, __LINE__, 0);
// }
rinfo->ias = ri->issuer_and_serial;
/*
if( rinfo->ias != NULL ) {
BIO_printf(bio_err, "%s:%d: Recip cert issued by ",
__FILE__, __LINE__);
X509_NAME_print_ex (bio_err, rinfo->ias->issuer,
0, XN_FLAG_RFC2253&(~ASN1_STRFLGS_ESC_MSB));
BIO_printf(bio_err, "\n%s:%d: Recip cert serial: %s\n",
__FILE__, __LINE__,
BN_bn2hex(ASN1_INTEGER_to_BN(rinfo->ias->serial,
NULL)));
};
*/
if( ri->cert ) {
/* Usually this does not happen to be included in
* the pkcs7env data, but in case we just get it */
sk_X509_push( rinfo->sk_recip_certs, ri->cert );
/*
if ( debug ) {
BIO_printf(bio_err, "%s:%d: Recipient cert for ",
__FILE__, __LINE__);
X509_NAME_print_ex (bio_err, X509_get_subject_name(ri->cert),
0, XN_FLAG_RFC2253&(~ASN1_STRFLGS_ESC_MSB));
BIO_printf(bio_err, "\n");
}
*/
}
/* perform some consistency checks */
/* UniCert 3.1.2 seems to out the message type, so fudge */
/* the value of 3 (CertRep) if it is missing (problem pointed */
/* out by Peter Onion */
/*
if (NULL == req->messageType) {
BIO_printf(bio_err, "%s:%d: no message type (setting to 3)\n",
__FILE__, __LINE__);
req->messageType = "3"; // XXX should we strdup here?
}
*/
/* UniCert doesn't seem to bother to put in a senderNonce, */
/* so don't get upset if it is missing. */
/*
if (NULL == scep->senderNonce) {
BIO_printf(bio_err, "%s:%d: senderNonce missing\n",
__FILE__, __LINE__);
}
*/
/* perform some type/status dependent checks */
/*
if ((used == 0) && (nMessageType != 3)) {
BIO_printf(bio_err, "%s:%d: only CertRep message may be "
"empty\n", __FILE__, __LINE__);
goto err;
}
if ((used == 0) && (nMessageType == 3) && (nPkiStatus == 0)) {
BIO_printf(bio_err, "%s:%d: CertRep may only be empty for "
"failure or pending\n", __FILE__, __LINE__);
goto err;
}
*/
/* no content is only allowed if the message is a CertRep with */
/* a pkiStatus of failure or pending */
/*
if (used == 0) {
BIO_printf(bio_err, "%s:%d: empty PKCSReq, must be failure or "
"pending\n", __FILE__, __LINE__);
goto signedonly;
}
if (debug)
BIO_printf(bio_err, "%s:%d: working on inner pkcs#7\n",
__FILE__, __LINE__);
*/
BIO_free(outbio);
signedonly:
/* we were successfull in extracting the telescoping PKCS#7's */
return(msg);
err:
// if( debug ) ERR_print_errors(bio_err);
return(NULL);
}
static LUA_FUNCTION(openssl_pkcs7_parse)
{
PKCS7 * p7 = CHECK_OBJECT(1, PKCS7, "openssl.pkcs7");
STACK_OF(X509) *certs = NULL;
STACK_OF(X509_CRL) *crls = NULL;
int i = OBJ_obj2nid(p7->type);
lua_newtable(L);
AUXILIAR_SET(L, -1, "type", OBJ_nid2ln(i), string);
switch (i)
{
case NID_pkcs7_signed:
{
PKCS7_SIGNED *sign = p7->d.sign;
certs = sign->cert ? sign->cert : NULL;
crls = sign->crl ? sign->crl : NULL;
AUXILIAR_SET(L, -1, "version", ASN1_INTEGER_get(sign->version), integer);
AUXILIAR_SET(L, -1, "detached", PKCS7_is_detached(p7), boolean);
lua_pushstring(L, "md_algs");
openssl_sk_x509_algor_totable(L, sign->md_algs);
lua_rawset(L, -3);
if (sign->signer_info)
{
int j, n;
n = sk_PKCS7_SIGNER_INFO_num(sign->signer_info);
lua_pushstring(L, "signer_info");
lua_newtable(L);
for (j = 0; j < n; j++)
{
PKCS7_SIGNER_INFO *info = sk_PKCS7_SIGNER_INFO_value(sign->signer_info, j);
lua_pushinteger(L, j + 1);
openssl_push_pkcs7_signer_info(L, info);
lua_rawset(L, -3);
}
lua_rawset(L, -3);
}
if (!PKCS7_is_detached(p7))
{
PKCS7* c = sign->contents;
c = PKCS7_dup(c);
AUXILIAR_SETOBJECT(L, c, "openssl.pkcs7", -1, "contents");
}
}
break;
case NID_pkcs7_signedAndEnveloped:
certs = p7->d.signed_and_enveloped->cert;
crls = p7->d.signed_and_enveloped->crl;
break;
case NID_pkcs7_enveloped:
{
/*
BIO * mem = BIO_new(BIO_s_mem());
BIO * v_p7bio = PKCS7_dataDecode(p7,pkey,NULL,NULL);
BUF_MEM *bptr = NULL;
unsigned char src[4096];
int len;
while((len = BIO_read(v_p7bio,src,4096))>0){
BIO_write(mem, src, len);
}
BIO_free(v_p7bio);
BIO_get_mem_ptr(mem, &bptr);
if((int)*puiDataLen < bptr->length)
{
*puiDataLen = bptr->length;
ret = SAR_MemoryErr;
}else{
*puiDataLen = bptr->length;
memcpy(pucData,bptr->data, bptr->length);
}
*/
}
break;
case NID_pkcs7_digest:
{
PKCS7_DIGEST* d = p7->d.digest;
ASN1_OCTET_STRING *as = ASN1_STRING_dup(d->digest);
PUSH_OBJECT(as, "openssl.asn1_string");
lua_setfield(L, -2, "digest");
}
break;
case NID_pkcs7_data:
{
ASN1_OCTET_STRING *as = ASN1_STRING_dup(p7->d.data);
PUSH_OBJECT(as, "openssl.asn1_string");
lua_setfield(L, -2, "data");
}
break;
default:
break;
}
/* NID_pkcs7_signed or NID_pkcs7_signedAndEnveloped */
if (certs != NULL)
{
lua_pushstring(L, "certs");
openssl_sk_x509_totable(L, certs);
lua_rawset(L, -3);
}
if (crls != NULL)
{
lua_pushstring(L, "crls");
openssl_sk_x509_crl_totable(L, crls);
lua_rawset(L, -3);
}
return 1;
}
static LUA_FUNCTION(openssl_pkcs7_verify_digest)
{
PKCS7 *p7 = CHECK_OBJECT(1, PKCS7, "openssl.pkcs7");
STACK_OF(X509) *certs = lua_isnoneornil(L, 2) ? NULL : openssl_sk_x509_fromtable(L, 2);
X509_STORE *store = lua_isnoneornil(L, 3) ? NULL : CHECK_OBJECT(3, X509_STORE, "openssl.x509_store");
size_t len;
const char* data = luaL_checklstring(L, 4, &len);
long flags = luaL_optint(L, 5, 0);
int hash = lua_isnoneornil(L, 6) ? 0 : lua_toboolean(L, 6);
STACK_OF(X509) *signers;
X509 *signer;
STACK_OF(PKCS7_SIGNER_INFO) *sinfos;
PKCS7_SIGNER_INFO *si;
X509_STORE_CTX cert_ctx;
int i, j = 0, k, ret = 0;
if (!PKCS7_type_is_signed(p7))
{
luaL_error(L, "pkcs7 must be signedData");
}
/* Check for no data and no content: no data to verify signature */
if (!PKCS7_get_detached(p7))
{
luaL_error(L, "pkcs7 must be detached signedData");
}
sinfos = PKCS7_get_signer_info(p7);
if (!sinfos || !sk_PKCS7_SIGNER_INFO_num(sinfos))
{
luaL_error(L, "pkcs7 signedData without signature");
}
signers = PKCS7_get0_signers(p7, certs, flags);
if (!signers)
{
luaL_error(L, "pkcs7 signedData without signers");
}
if (!store)
flags |= PKCS7_NOVERIFY;
/* Now verify the certificates */
if (!(flags & PKCS7_NOVERIFY))
for (k = 0; k < sk_X509_num(signers); k++)
{
signer = sk_X509_value(signers, k);
if (!(flags & PKCS7_NOCHAIN))
{
if (!X509_STORE_CTX_init(&cert_ctx, store, signer,
p7->d.sign->cert))
{
PKCS7err(PKCS7_F_PKCS7_VERIFY, ERR_R_X509_LIB);
goto err;
}
X509_STORE_CTX_set_default(&cert_ctx, "smime_sign");
}
else if (!X509_STORE_CTX_init(&cert_ctx, store, signer, NULL))
{
PKCS7err(PKCS7_F_PKCS7_VERIFY, ERR_R_X509_LIB);
goto err;
}
if (!(flags & PKCS7_NOCRL))
X509_STORE_CTX_set0_crls(&cert_ctx, p7->d.sign->crl);
i = X509_verify_cert(&cert_ctx);
if (i <= 0)
j = X509_STORE_CTX_get_error(&cert_ctx);
X509_STORE_CTX_cleanup(&cert_ctx);
if (i <= 0)
{
PKCS7err(PKCS7_F_PKCS7_VERIFY,
PKCS7_R_CERTIFICATE_VERIFY_ERROR);
ERR_add_error_data(2, "Verify error:",
X509_verify_cert_error_string(j));
goto err;
}
/* Check for revocation status here */
}
/* Now Verify All Signatures */
if (!(flags & PKCS7_NOSIGS))
for (i = 0; i < sk_PKCS7_SIGNER_INFO_num(sinfos); i++)
{
si = sk_PKCS7_SIGNER_INFO_value(sinfos, i);
signer = sk_X509_value(signers, i);
j = PKCS7_signatureVerify_digest(p7, si, signer,
(const unsigned char*) data, len, hash);
if (j <= 0)
{
PKCS7err(PKCS7_F_PKCS7_VERIFY, PKCS7_R_SIGNATURE_FAILURE);
goto err;
}
}
ret = 1;
err:
if (certs)
sk_X509_pop_free(certs, X509_free);
sk_X509_free(signers);
return openssl_pushresult(L, ret);
}
static LUA_FUNCTION(openssl_pkcs7_sign_digest)
{
PKCS7 *p7 = CHECK_OBJECT(1, PKCS7, "openssl.pkcs7");
size_t l;
const char* data = luaL_checklstring(L, 2, &l);
long flags = luaL_optint(L, 3, 0);
int hash = lua_isnoneornil(L, 4) ? 0 : lua_toboolean(L, 4);
int ret = 0;
int i, j;
const EVP_MD* md;
PKCS7_SIGNER_INFO *si;
EVP_MD_CTX mdc;
STACK_OF(X509_ATTRIBUTE) *sk;
STACK_OF(PKCS7_SIGNER_INFO) *si_sk = NULL;
ASN1_OCTET_STRING *os = NULL;
if (p7->d.ptr == NULL)
{
luaL_error(L, "pkcs7 without content");
return 0;
}
flags |= PKCS7_DETACHED;
PKCS7_set_detached(p7, 1);
EVP_MD_CTX_init(&mdc);
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);
md = EVP_get_digestbynid(j);
EVP_DigestInit_ex(&mdc, md, NULL);
if (hash)
{
if (l == (size_t) mdc.digest->ctx_size)
{
memcpy(mdc.md_data, data, l);
}
else
{
EVP_MD_CTX_cleanup(&mdc);
luaL_argerror(L, 2, "data with wrong length");
}
}
else
EVP_DigestUpdate(&mdc, data, l);
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, &mdc))
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(&mdc, 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;
md = EVP_get_digestbynid(OBJ_obj2nid(p7->d.digest->md->algorithm));
EVP_DigestInit_ex(&mdc, md, NULL);
if (l == (size_t) mdc.digest->ctx_size)
{
memcpy(mdc.md_data, data, l);
}
else
{
EVP_MD_CTX_cleanup(&mdc);
luaL_error(L, "data with wrong data");
}
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 = memdup(data, l);
long contlen = l;
ASN1_STRING_set0(os, (unsigned char *) cont, contlen);
}
}
ret = 1;
err:
EVP_MD_CTX_cleanup(&mdc);
return openssl_pushresult(L, ret);
}
char* /* returns contents of the signed message, NULL if error */
smime_verify_signature(const char* pubkey,
const char* sig_entity, /* signed entity
or just the sigature */
const char* detached_data, /* possibly NULL */
int detached_data_len)
{
X509* x509 = NULL;
PKCS7* p7 = NULL;
STACK_OF(PKCS7_SIGNER_INFO)* sigs = NULL;
X509_STORE* certs=NULL;
BIO* detached = NULL;
BIO* p7bio = NULL;
BIO* wbio = NULL;
char* data = NULL;
char buf[4096];
int i,x;
if (!sig_entity || !pubkey) GOTO_ERR("NULL arg(s)");
if (!(p7 = get_pkcs7_from_pem(sig_entity))) goto err;
/* Hmm, if its clear signed, we already provided the detached sig, but
* if its one sig blob, may be PKCS7_get_detached() provides BIO connected
* to the detached part. Go figure.
*/
if (detached_data && detached_data_len) {
if (!(detached = set_read_BIO_from_buf(detached_data, detached_data_len)))
goto err;
} else {
if (!PKCS7_get_detached(p7))
GOTO_ERR("15 cant extract signed data from signed entity (PKCS7_get_detached)");
}
if (!(p7bio=PKCS7_dataInit(p7,detached))) GOTO_ERR("PKCS7_dataInit");
if (!(wbio = BIO_new(BIO_s_mem()))) GOTO_ERR("no memory?");
/* We now have to 'read' from p7bio to calculate message digest(s).
* I also take the opportunity to save the signed data. */
for (;;) {
i = BIO_read(p7bio,buf,sizeof(buf));
if (i <= 0) break;
BIO_write(wbio, buf, i);
}
if (get_written_BIO_data(wbio, &data)==-1) goto err;
BIO_free_all(wbio);
wbio = NULL;
/* We can now verify signatures */
if (!(sigs=PKCS7_get_signer_info(p7)))
GOTO_ERR("13 no sigs? (PKCS7_get_signer_info)");
/* Ok, first we need to, for each subject entry, see if we can verify */
for (i=0; i<sk_PKCS7_SIGNER_INFO_num(sigs); i++) {
X509_STORE_CTX cert_ctx;
PKCS7_SIGNER_INFO *si;
ASN1_UTCTIME *tm;
char *str1,*str2;
si=sk_PKCS7_SIGNER_INFO_value(sigs,i);
/* The bio is needed here only to lookup the message digest context
* which presumably now contains the message digest. It will not be
* read, and hence its good for any number of iterations. This is so
* because MD bios pass the data right thru so they can be stacked
* to calculate multiple message digests simultaneously. Clever, eh?
*/
#if 0
/* *** this is currently broken and thus disabled. --Sampo */
/* verifies by looking up the certificate from certs database,
* verifying the validity of the certificate, and finally
* validity of the signature */
x=PKCS7_dataVerify(certs, &cert_ctx, p7bio, p7, si);
#else
/* just verify the signature, given that we already have certificate
* candidate (see crypto/pk7_doit.c around line 675) */
if (!(x509 = extract_certificate(pubkey))) goto err;
x=PKCS7_signatureVerify(p7bio, p7, si, x509);
#endif
if (x <= 0) GOTO_ERR("14 sig verify failed");
#if 0
if ((tm=get_signed_time(si)) != NULL) {
//fprintf(stderr,"Signed time:");
//ASN1_UTCTIME_print(bio_out,tm);
ASN1_UTCTIME_free(tm);
//BIO_printf(bio_out,"\n");
}
#endif
#if 0
if (get_signed_seq2string(si,&str1,&str2)) {
fprintf(stderr,"String 1 is %s\n",str1);
fprintf(stderr,"String 2 is %s\n",str2);
}
#endif
}
BIO_free_all(p7bio);
PKCS7_free(p7);
X509_STORE_free(certs);
return data; /* return the signed plain text */
err:
if (wbio) BIO_free_all(wbio);
if (p7bio) BIO_free_all(p7bio);
if (p7) PKCS7_free(p7);
if (certs) X509_STORE_free(certs);
if (data) Free(data);
return NULL;
}
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;
unsigned char *p,*pp=NULL;
int x;
ASN1_OCTET_STRING *os=NULL;
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=p7->d.sign->contents->d.data;
/* If detached data then the content is excluded */
if(p7->detached) {
M_ASN1_OCTET_STRING_free(os);
p7->d.sign->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;
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,PKCS7_R_INTERNAL_ERROR);
goto err;
}
if (EVP_MD_CTX_type(mdc) == j)
break;
else
btmp=BIO_next(btmp);
}
/* We now have the EVP_MD_CTX, lets do the
* signing. */
memcpy(&ctx_tmp,mdc,sizeof(ctx_tmp));
if (!BUF_MEM_grow(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];
unsigned int md_len;
ASN1_OCTET_STRING *digest;
ASN1_UTCTIME *sign_time;
const EVP_MD *md_tmp;
/* Add signing time */
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(&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 mess */
EVP_SignInit(&ctx_tmp,md_tmp);
x=i2d_ASN1_SET_OF_X509_ATTRIBUTE(sk,NULL,
i2d_X509_ATTRIBUTE,
V_ASN1_SET,V_ASN1_UNIVERSAL,IS_SET);
pp=(unsigned char *)OPENSSL_malloc(x);
p=pp;
i2d_ASN1_SET_OF_X509_ATTRIBUTE(sk,&p,
i2d_X509_ATTRIBUTE,
V_ASN1_SET,V_ASN1_UNIVERSAL,IS_SET);
EVP_SignUpdate(&ctx_tmp,pp,x);
OPENSSL_free(pp);
pp=NULL;
}
#ifndef NO_DSA
if (si->pkey->type == EVP_PKEY_DSA)
ctx_tmp.digest=EVP_dss1();
#endif
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;
}
}
}
if (!p7->detached)
{
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
}
if (pp != NULL) OPENSSL_free(pp);
pp=NULL;
ret=1;
err:
if (buf != NULL) BUF_MEM_free(buf);
return(ret);
}