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-rw-r--r--crypto/cms/cms_ess.c605
1 files changed, 290 insertions, 315 deletions
diff --git a/crypto/cms/cms_ess.c b/crypto/cms/cms_ess.c
index 90c0b82fb568..8631a2eb2b30 100644
--- a/crypto/cms/cms_ess.c
+++ b/crypto/cms/cms_ess.c
@@ -1,5 +1,6 @@
/* crypto/cms/cms_ess.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project.
*/
/* ====================================================================
@@ -10,7 +11,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
@@ -68,353 +69,327 @@ IMPLEMENT_ASN1_FUNCTIONS(CMS_ReceiptRequest)
/* ESS services: for now just Signed Receipt related */
int CMS_get1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest **prr)
- {
- ASN1_STRING *str;
- CMS_ReceiptRequest *rr = NULL;
- if (prr)
- *prr = NULL;
- str = CMS_signed_get0_data_by_OBJ(si,
- OBJ_nid2obj(NID_id_smime_aa_receiptRequest),
- -3, V_ASN1_SEQUENCE);
- if (!str)
- return 0;
-
- rr = ASN1_item_unpack(str, ASN1_ITEM_rptr(CMS_ReceiptRequest));
- if (!rr)
- return -1;
- if (prr)
- *prr = rr;
- else
- CMS_ReceiptRequest_free(rr);
- return 1;
- }
+{
+ ASN1_STRING *str;
+ CMS_ReceiptRequest *rr = NULL;
+ if (prr)
+ *prr = NULL;
+ str = CMS_signed_get0_data_by_OBJ(si,
+ OBJ_nid2obj
+ (NID_id_smime_aa_receiptRequest), -3,
+ V_ASN1_SEQUENCE);
+ if (!str)
+ return 0;
+
+ rr = ASN1_item_unpack(str, ASN1_ITEM_rptr(CMS_ReceiptRequest));
+ if (!rr)
+ return -1;
+ if (prr)
+ *prr = rr;
+ else
+ CMS_ReceiptRequest_free(rr);
+ return 1;
+}
CMS_ReceiptRequest *CMS_ReceiptRequest_create0(unsigned char *id, int idlen,
- int allorfirst,
- STACK_OF(GENERAL_NAMES) *receiptList,
- STACK_OF(GENERAL_NAMES) *receiptsTo)
- {
- CMS_ReceiptRequest *rr = NULL;
-
- rr = CMS_ReceiptRequest_new();
- if (!rr)
- goto merr;
- if (id)
- ASN1_STRING_set0(rr->signedContentIdentifier, id, idlen);
- else
- {
- if (!ASN1_STRING_set(rr->signedContentIdentifier, NULL, 32))
- goto merr;
- if (RAND_pseudo_bytes(rr->signedContentIdentifier->data, 32)
- <= 0)
- goto err;
- }
-
- sk_GENERAL_NAMES_pop_free(rr->receiptsTo, GENERAL_NAMES_free);
- rr->receiptsTo = receiptsTo;
-
- if (receiptList)
- {
- rr->receiptsFrom->type = 1;
- rr->receiptsFrom->d.receiptList = receiptList;
- }
- else
- {
- rr->receiptsFrom->type = 0;
- rr->receiptsFrom->d.allOrFirstTier = allorfirst;
- }
-
- return rr;
-
- merr:
- CMSerr(CMS_F_CMS_RECEIPTREQUEST_CREATE0, ERR_R_MALLOC_FAILURE);
-
- err:
- if (rr)
- CMS_ReceiptRequest_free(rr);
-
- return NULL;
-
- }
+ int allorfirst,
+ STACK_OF(GENERAL_NAMES)
+ *receiptList, STACK_OF(GENERAL_NAMES)
+ *receiptsTo)
+{
+ CMS_ReceiptRequest *rr = NULL;
+
+ rr = CMS_ReceiptRequest_new();
+ if (!rr)
+ goto merr;
+ if (id)
+ ASN1_STRING_set0(rr->signedContentIdentifier, id, idlen);
+ else {
+ if (!ASN1_STRING_set(rr->signedContentIdentifier, NULL, 32))
+ goto merr;
+ if (RAND_pseudo_bytes(rr->signedContentIdentifier->data, 32)
+ <= 0)
+ goto err;
+ }
+
+ sk_GENERAL_NAMES_pop_free(rr->receiptsTo, GENERAL_NAMES_free);
+ rr->receiptsTo = receiptsTo;
+
+ if (receiptList) {
+ rr->receiptsFrom->type = 1;
+ rr->receiptsFrom->d.receiptList = receiptList;
+ } else {
+ rr->receiptsFrom->type = 0;
+ rr->receiptsFrom->d.allOrFirstTier = allorfirst;
+ }
+
+ return rr;
+
+ merr:
+ CMSerr(CMS_F_CMS_RECEIPTREQUEST_CREATE0, ERR_R_MALLOC_FAILURE);
+
+ err:
+ if (rr)
+ CMS_ReceiptRequest_free(rr);
+
+ return NULL;
+
+}
int CMS_add1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest *rr)
- {
- unsigned char *rrder = NULL;
- int rrderlen, r = 0;
+{
+ unsigned char *rrder = NULL;
+ int rrderlen, r = 0;
- rrderlen = i2d_CMS_ReceiptRequest(rr, &rrder);
- if (rrderlen < 0)
- goto merr;
+ rrderlen = i2d_CMS_ReceiptRequest(rr, &rrder);
+ if (rrderlen < 0)
+ goto merr;
- if (!CMS_signed_add1_attr_by_NID(si, NID_id_smime_aa_receiptRequest,
- V_ASN1_SEQUENCE, rrder, rrderlen))
- goto merr;
+ if (!CMS_signed_add1_attr_by_NID(si, NID_id_smime_aa_receiptRequest,
+ V_ASN1_SEQUENCE, rrder, rrderlen))
+ goto merr;
- r = 1;
+ r = 1;
- merr:
- if (!r)
- CMSerr(CMS_F_CMS_ADD1_RECEIPTREQUEST, ERR_R_MALLOC_FAILURE);
+ merr:
+ if (!r)
+ CMSerr(CMS_F_CMS_ADD1_RECEIPTREQUEST, ERR_R_MALLOC_FAILURE);
- if (rrder)
- OPENSSL_free(rrder);
+ if (rrder)
+ OPENSSL_free(rrder);
- return r;
-
- }
+ return r;
+
+}
void CMS_ReceiptRequest_get0_values(CMS_ReceiptRequest *rr,
- ASN1_STRING **pcid,
- int *pallorfirst,
- STACK_OF(GENERAL_NAMES) **plist,
- STACK_OF(GENERAL_NAMES) **prto)
- {
- if (pcid)
- *pcid = rr->signedContentIdentifier;
- if (rr->receiptsFrom->type == 0)
- {
- if (pallorfirst)
- *pallorfirst = (int)rr->receiptsFrom->d.allOrFirstTier;
- if (plist)
- *plist = NULL;
- }
- else
- {
- if (pallorfirst)
- *pallorfirst = -1;
- if (plist)
- *plist = rr->receiptsFrom->d.receiptList;
- }
- if (prto)
- *prto = rr->receiptsTo;
- }
+ ASN1_STRING **pcid,
+ int *pallorfirst,
+ STACK_OF(GENERAL_NAMES) **plist,
+ STACK_OF(GENERAL_NAMES) **prto)
+{
+ if (pcid)
+ *pcid = rr->signedContentIdentifier;
+ if (rr->receiptsFrom->type == 0) {
+ if (pallorfirst)
+ *pallorfirst = (int)rr->receiptsFrom->d.allOrFirstTier;
+ if (plist)
+ *plist = NULL;
+ } else {
+ if (pallorfirst)
+ *pallorfirst = -1;
+ if (plist)
+ *plist = rr->receiptsFrom->d.receiptList;
+ }
+ if (prto)
+ *prto = rr->receiptsTo;
+}
/* Digest a SignerInfo structure for msgSigDigest attribute processing */
static int cms_msgSigDigest(CMS_SignerInfo *si,
- unsigned char *dig, unsigned int *diglen)
- {
- const EVP_MD *md;
- md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
- if (md == NULL)
- return 0;
- if (!ASN1_item_digest(ASN1_ITEM_rptr(CMS_Attributes_Verify), md,
- si->signedAttrs, dig, diglen))
- return 0;
- return 1;
- }
+ unsigned char *dig, unsigned int *diglen)
+{
+ const EVP_MD *md;
+ md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
+ if (md == NULL)
+ return 0;
+ if (!ASN1_item_digest(ASN1_ITEM_rptr(CMS_Attributes_Verify), md,
+ si->signedAttrs, dig, diglen))
+ return 0;
+ return 1;
+}
/* Add a msgSigDigest attribute to a SignerInfo */
int cms_msgSigDigest_add1(CMS_SignerInfo *dest, CMS_SignerInfo *src)
- {
- unsigned char dig[EVP_MAX_MD_SIZE];
- unsigned int diglen;
- if (!cms_msgSigDigest(src, dig, &diglen))
- {
- CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1, CMS_R_MSGSIGDIGEST_ERROR);
- return 0;
- }
- if (!CMS_signed_add1_attr_by_NID(dest, NID_id_smime_aa_msgSigDigest,
- V_ASN1_OCTET_STRING, dig, diglen))
- {
- CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- return 1;
- }
+{
+ unsigned char dig[EVP_MAX_MD_SIZE];
+ unsigned int diglen;
+ if (!cms_msgSigDigest(src, dig, &diglen)) {
+ CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1, CMS_R_MSGSIGDIGEST_ERROR);
+ return 0;
+ }
+ if (!CMS_signed_add1_attr_by_NID(dest, NID_id_smime_aa_msgSigDigest,
+ V_ASN1_OCTET_STRING, dig, diglen)) {
+ CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ return 1;
+}
/* Verify signed receipt after it has already passed normal CMS verify */
int cms_Receipt_verify(CMS_ContentInfo *cms, CMS_ContentInfo *req_cms)
- {
- int r = 0, i;
- CMS_ReceiptRequest *rr = NULL;
- CMS_Receipt *rct = NULL;
- STACK_OF(CMS_SignerInfo) *sis, *osis;
- CMS_SignerInfo *si, *osi = NULL;
- ASN1_OCTET_STRING *msig, **pcont;
- ASN1_OBJECT *octype;
- unsigned char dig[EVP_MAX_MD_SIZE];
- unsigned int diglen;
-
- /* Get SignerInfos, also checks SignedData content type */
- osis = CMS_get0_SignerInfos(req_cms);
- sis = CMS_get0_SignerInfos(cms);
- if (!osis || !sis)
- goto err;
-
- if (sk_CMS_SignerInfo_num(sis) != 1)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NEED_ONE_SIGNER);
- goto err;
- }
-
- /* Check receipt content type */
- if (OBJ_obj2nid(CMS_get0_eContentType(cms)) != NID_id_smime_ct_receipt)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NOT_A_SIGNED_RECEIPT);
- goto err;
- }
-
- /* Extract and decode receipt content */
- pcont = CMS_get0_content(cms);
- if (!pcont || !*pcont)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_CONTENT);
- goto err;
- }
-
- rct = ASN1_item_unpack(*pcont, ASN1_ITEM_rptr(CMS_Receipt));
-
- if (!rct)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_RECEIPT_DECODE_ERROR);
- goto err;
- }
-
- /* Locate original request */
-
- for (i = 0; i < sk_CMS_SignerInfo_num(osis); i++)
- {
- osi = sk_CMS_SignerInfo_value(osis, i);
- if (!ASN1_STRING_cmp(osi->signature,
- rct->originatorSignatureValue))
- break;
- }
-
- if (i == sk_CMS_SignerInfo_num(osis))
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_MATCHING_SIGNATURE);
- goto err;
- }
-
- si = sk_CMS_SignerInfo_value(sis, 0);
-
- /* Get msgSigDigest value and compare */
-
- msig = CMS_signed_get0_data_by_OBJ(si,
- OBJ_nid2obj(NID_id_smime_aa_msgSigDigest),
- -3, V_ASN1_OCTET_STRING);
-
- if (!msig)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_MSGSIGDIGEST);
- goto err;
- }
-
- if (!cms_msgSigDigest(osi, dig, &diglen))
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_MSGSIGDIGEST_ERROR);
- goto err;
- }
-
- if (diglen != (unsigned int)msig->length)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY,
- CMS_R_MSGSIGDIGEST_WRONG_LENGTH);
- goto err;
- }
-
- if (memcmp(dig, msig->data, diglen))
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY,
- CMS_R_MSGSIGDIGEST_VERIFICATION_FAILURE);
- goto err;
- }
-
- /* Compare content types */
-
- octype = CMS_signed_get0_data_by_OBJ(osi,
- OBJ_nid2obj(NID_pkcs9_contentType),
- -3, V_ASN1_OBJECT);
- if (!octype)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_CONTENT_TYPE);
- goto err;
- }
-
- /* Compare details in receipt request */
-
- if (OBJ_cmp(octype, rct->contentType))
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_CONTENT_TYPE_MISMATCH);
- goto err;
- }
-
- /* Get original receipt request details */
-
- if (CMS_get1_ReceiptRequest(osi, &rr) <= 0)
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_RECEIPT_REQUEST);
- goto err;
- }
-
- if (ASN1_STRING_cmp(rr->signedContentIdentifier,
- rct->signedContentIdentifier))
- {
- CMSerr(CMS_F_CMS_RECEIPT_VERIFY,
- CMS_R_CONTENTIDENTIFIER_MISMATCH);
- goto err;
- }
-
- r = 1;
-
- err:
- if (rr)
- CMS_ReceiptRequest_free(rr);
- if (rct)
- M_ASN1_free_of(rct, CMS_Receipt);
-
- return r;
-
- }
-
-/* Encode a Receipt into an OCTET STRING read for including into content of
- * a SignedData ContentInfo.
+{
+ int r = 0, i;
+ CMS_ReceiptRequest *rr = NULL;
+ CMS_Receipt *rct = NULL;
+ STACK_OF(CMS_SignerInfo) *sis, *osis;
+ CMS_SignerInfo *si, *osi = NULL;
+ ASN1_OCTET_STRING *msig, **pcont;
+ ASN1_OBJECT *octype;
+ unsigned char dig[EVP_MAX_MD_SIZE];
+ unsigned int diglen;
+
+ /* Get SignerInfos, also checks SignedData content type */
+ osis = CMS_get0_SignerInfos(req_cms);
+ sis = CMS_get0_SignerInfos(cms);
+ if (!osis || !sis)
+ goto err;
+
+ if (sk_CMS_SignerInfo_num(sis) != 1) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NEED_ONE_SIGNER);
+ goto err;
+ }
+
+ /* Check receipt content type */
+ if (OBJ_obj2nid(CMS_get0_eContentType(cms)) != NID_id_smime_ct_receipt) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NOT_A_SIGNED_RECEIPT);
+ goto err;
+ }
+
+ /* Extract and decode receipt content */
+ pcont = CMS_get0_content(cms);
+ if (!pcont || !*pcont) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_CONTENT);
+ goto err;
+ }
+
+ rct = ASN1_item_unpack(*pcont, ASN1_ITEM_rptr(CMS_Receipt));
+
+ if (!rct) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_RECEIPT_DECODE_ERROR);
+ goto err;
+ }
+
+ /* Locate original request */
+
+ for (i = 0; i < sk_CMS_SignerInfo_num(osis); i++) {
+ osi = sk_CMS_SignerInfo_value(osis, i);
+ if (!ASN1_STRING_cmp(osi->signature, rct->originatorSignatureValue))
+ break;
+ }
+
+ if (i == sk_CMS_SignerInfo_num(osis)) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_MATCHING_SIGNATURE);
+ goto err;
+ }
+
+ si = sk_CMS_SignerInfo_value(sis, 0);
+
+ /* Get msgSigDigest value and compare */
+
+ msig = CMS_signed_get0_data_by_OBJ(si,
+ OBJ_nid2obj
+ (NID_id_smime_aa_msgSigDigest), -3,
+ V_ASN1_OCTET_STRING);
+
+ if (!msig) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_MSGSIGDIGEST);
+ goto err;
+ }
+
+ if (!cms_msgSigDigest(osi, dig, &diglen)) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_MSGSIGDIGEST_ERROR);
+ goto err;
+ }
+
+ if (diglen != (unsigned int)msig->length) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_MSGSIGDIGEST_WRONG_LENGTH);
+ goto err;
+ }
+
+ if (memcmp(dig, msig->data, diglen)) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY,
+ CMS_R_MSGSIGDIGEST_VERIFICATION_FAILURE);
+ goto err;
+ }
+
+ /* Compare content types */
+
+ octype = CMS_signed_get0_data_by_OBJ(osi,
+ OBJ_nid2obj(NID_pkcs9_contentType),
+ -3, V_ASN1_OBJECT);
+ if (!octype) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_CONTENT_TYPE);
+ goto err;
+ }
+
+ /* Compare details in receipt request */
+
+ if (OBJ_cmp(octype, rct->contentType)) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_CONTENT_TYPE_MISMATCH);
+ goto err;
+ }
+
+ /* Get original receipt request details */
+
+ if (CMS_get1_ReceiptRequest(osi, &rr) <= 0) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_RECEIPT_REQUEST);
+ goto err;
+ }
+
+ if (ASN1_STRING_cmp(rr->signedContentIdentifier,
+ rct->signedContentIdentifier)) {
+ CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_CONTENTIDENTIFIER_MISMATCH);
+ goto err;
+ }
+
+ r = 1;
+
+ err:
+ if (rr)
+ CMS_ReceiptRequest_free(rr);
+ if (rct)
+ M_ASN1_free_of(rct, CMS_Receipt);
+
+ return r;
+
+}
+
+/*
+ * Encode a Receipt into an OCTET STRING read for including into content of a
+ * SignedData ContentInfo.
*/
ASN1_OCTET_STRING *cms_encode_Receipt(CMS_SignerInfo *si)
- {
- CMS_Receipt rct;
- CMS_ReceiptRequest *rr = NULL;
- ASN1_OBJECT *ctype;
- ASN1_OCTET_STRING *os = NULL;
-
- /* Get original receipt request */
-
- /* Get original receipt request details */
+{
+ CMS_Receipt rct;
+ CMS_ReceiptRequest *rr = NULL;
+ ASN1_OBJECT *ctype;
+ ASN1_OCTET_STRING *os = NULL;
- if (CMS_get1_ReceiptRequest(si, &rr) <= 0)
- {
- CMSerr(CMS_F_CMS_ENCODE_RECEIPT, CMS_R_NO_RECEIPT_REQUEST);
- goto err;
- }
+ /* Get original receipt request */
- /* Get original content type */
+ /* Get original receipt request details */
- ctype = CMS_signed_get0_data_by_OBJ(si,
- OBJ_nid2obj(NID_pkcs9_contentType),
- -3, V_ASN1_OBJECT);
- if (!ctype)
- {
- CMSerr(CMS_F_CMS_ENCODE_RECEIPT, CMS_R_NO_CONTENT_TYPE);
- goto err;
- }
+ if (CMS_get1_ReceiptRequest(si, &rr) <= 0) {
+ CMSerr(CMS_F_CMS_ENCODE_RECEIPT, CMS_R_NO_RECEIPT_REQUEST);
+ goto err;
+ }
- rct.version = 1;
- rct.contentType = ctype;
- rct.signedContentIdentifier = rr->signedContentIdentifier;
- rct.originatorSignatureValue = si->signature;
+ /* Get original content type */
- os = ASN1_item_pack(&rct, ASN1_ITEM_rptr(CMS_Receipt), NULL);
+ ctype = CMS_signed_get0_data_by_OBJ(si,
+ OBJ_nid2obj(NID_pkcs9_contentType),
+ -3, V_ASN1_OBJECT);
+ if (!ctype) {
+ CMSerr(CMS_F_CMS_ENCODE_RECEIPT, CMS_R_NO_CONTENT_TYPE);
+ goto err;
+ }
- err:
- if (rr)
- CMS_ReceiptRequest_free(rr);
+ rct.version = 1;
+ rct.contentType = ctype;
+ rct.signedContentIdentifier = rr->signedContentIdentifier;
+ rct.originatorSignatureValue = si->signature;
- return os;
+ os = ASN1_item_pack(&rct, ASN1_ITEM_rptr(CMS_Receipt), NULL);
- }
+ err:
+ if (rr)
+ CMS_ReceiptRequest_free(rr);
+ return os;
+}