}
+/*
+ * RFC 5652 Section 11.1 Content Type
+ * The content-type attribute within signed-data MUST
+ * 1) be present if there are signed attributes
+ * 2) match the content type in the signed-data,
+ * 3) be a signed attribute.
+ * 4) not have more than one copy of the attribute.
+ *
+ * Note that since the CMS_SignerInfo_sign() always adds the "signing time"
+ * attribute, the content type attribute MUST be added also.
+ * Assumptions: This assumes that the attribute does not already exist.
+ */
+static int cms_set_si_contentType_attr(CMS_ContentInfo *cms, CMS_SignerInfo *si)
+{
+ ASN1_OBJECT *ctype = cms->d.signedData->encapContentInfo->eContentType;
+
+ /* Add the contentType attribute */
+ return CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
+ V_ASN1_OBJECT, ctype, -1) > 0;
+}
+
/* Copy an existing messageDigest value */
static int cms_copy_messageDigest(CMS_ContentInfo *cms, CMS_SignerInfo *si)
if (flags & CMS_REUSE_DIGEST) {
if (!cms_copy_messageDigest(cms, si))
goto err;
+ if (!cms_set_si_contentType_attr(cms, si))
+ goto err;
if (!(flags & (CMS_PARTIAL | CMS_KEY_PARAM)) &&
!CMS_SignerInfo_sign(si))
goto err;
*/
if (CMS_signed_get_attr_count(si) >= 0) {
- ASN1_OBJECT *ctype =
- cms->d.signedData->encapContentInfo->eContentType;
unsigned char md[EVP_MAX_MD_SIZE];
unsigned int mdlen;
if (!EVP_DigestFinal_ex(mctx, md, &mdlen))
V_ASN1_OCTET_STRING, md, mdlen))
goto err;
/* Copy content type across */
- if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
- V_ASN1_OBJECT, ctype, -1) <= 0)
+ if (!cms_set_si_contentType_attr(cms, si))
goto err;
+
if (!CMS_SignerInfo_sign(si))
goto err;
} else if (si->pctx) {
goto err;
}
+ if (!CMS_si_check_attributes(si))
+ goto err;
+
if (si->pctx)
pctx = si->pctx;
else {
OPENSSL_free(abuf);
EVP_MD_CTX_reset(mctx);
return 0;
-
}
int CMS_SignerInfo_verify(CMS_SignerInfo *si)
return -1;
}
+ if (!CMS_si_check_attributes(si))
+ return -1;
+
md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
if (md == NULL)
return -1;