mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
5cbd2ea3f9
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15513)
418 lines
12 KiB
C
418 lines
12 KiB
C
/*
|
|
* Copyright 2008-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#include "internal/cryptlib.h"
|
|
#include <openssl/asn1t.h>
|
|
#include <openssl/pem.h>
|
|
#include <openssl/rand.h>
|
|
#include <openssl/x509v3.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/cms.h>
|
|
#include <openssl/ess.h>
|
|
#include "crypto/ess.h"
|
|
#include "crypto/x509.h"
|
|
#include "cms_local.h"
|
|
|
|
IMPLEMENT_ASN1_FUNCTIONS(CMS_ReceiptRequest)
|
|
|
|
/* ESS services */
|
|
|
|
int CMS_get1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest **prr)
|
|
{
|
|
ASN1_STRING *str;
|
|
CMS_ReceiptRequest *rr;
|
|
ASN1_OBJECT *obj = OBJ_nid2obj(NID_id_smime_aa_receiptRequest);
|
|
|
|
if (prr != NULL)
|
|
*prr = NULL;
|
|
str = CMS_signed_get0_data_by_OBJ(si, obj, -3, V_ASN1_SEQUENCE);
|
|
if (str == NULL)
|
|
return 0;
|
|
|
|
rr = ASN1_item_unpack(str, ASN1_ITEM_rptr(CMS_ReceiptRequest));
|
|
if (rr == NULL)
|
|
return -1;
|
|
if (prr != NULL)
|
|
*prr = rr;
|
|
else
|
|
CMS_ReceiptRequest_free(rr);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Returns 0 if attribute is not found, 1 if found,
|
|
* or -1 on attribute parsing failure.
|
|
*/
|
|
static int ossl_cms_signerinfo_get_signing_cert(const CMS_SignerInfo *si,
|
|
ESS_SIGNING_CERT **psc)
|
|
{
|
|
ASN1_STRING *str;
|
|
ESS_SIGNING_CERT *sc;
|
|
ASN1_OBJECT *obj = OBJ_nid2obj(NID_id_smime_aa_signingCertificate);
|
|
|
|
if (psc != NULL)
|
|
*psc = NULL;
|
|
str = CMS_signed_get0_data_by_OBJ(si, obj, -3, V_ASN1_SEQUENCE);
|
|
if (str == NULL)
|
|
return 0;
|
|
|
|
sc = ASN1_item_unpack(str, ASN1_ITEM_rptr(ESS_SIGNING_CERT));
|
|
if (sc == NULL)
|
|
return -1;
|
|
if (psc != NULL)
|
|
*psc = sc;
|
|
else
|
|
ESS_SIGNING_CERT_free(sc);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Returns 0 if attribute is not found, 1 if found,
|
|
* or -1 on attribute parsing failure.
|
|
*/
|
|
static int ossl_cms_signerinfo_get_signing_cert_v2(const CMS_SignerInfo *si,
|
|
ESS_SIGNING_CERT_V2 **psc)
|
|
{
|
|
ASN1_STRING *str;
|
|
ESS_SIGNING_CERT_V2 *sc;
|
|
ASN1_OBJECT *obj = OBJ_nid2obj(NID_id_smime_aa_signingCertificateV2);
|
|
|
|
if (psc != NULL)
|
|
*psc = NULL;
|
|
str = CMS_signed_get0_data_by_OBJ(si, obj, -3, V_ASN1_SEQUENCE);
|
|
if (str == NULL)
|
|
return 0;
|
|
|
|
sc = ASN1_item_unpack(str, ASN1_ITEM_rptr(ESS_SIGNING_CERT_V2));
|
|
if (sc == NULL)
|
|
return -1;
|
|
if (psc != NULL)
|
|
*psc = sc;
|
|
else
|
|
ESS_SIGNING_CERT_V2_free(sc);
|
|
return 1;
|
|
}
|
|
|
|
int ossl_cms_check_signing_certs(const CMS_SignerInfo *si,
|
|
const STACK_OF(X509) *chain)
|
|
{
|
|
ESS_SIGNING_CERT *ss = NULL;
|
|
ESS_SIGNING_CERT_V2 *ssv2 = NULL;
|
|
int ret = ossl_cms_signerinfo_get_signing_cert(si, &ss) >= 0
|
|
&& ossl_cms_signerinfo_get_signing_cert_v2(si, &ssv2) >= 0
|
|
&& OSSL_ESS_check_signing_certs(ss, ssv2, chain, 1) > 0;
|
|
|
|
ESS_SIGNING_CERT_free(ss);
|
|
ESS_SIGNING_CERT_V2_free(ssv2);
|
|
return ret;
|
|
}
|
|
|
|
CMS_ReceiptRequest *CMS_ReceiptRequest_create0_ex(
|
|
unsigned char *id, int idlen, int allorfirst,
|
|
STACK_OF(GENERAL_NAMES) *receiptList, STACK_OF(GENERAL_NAMES) *receiptsTo,
|
|
OSSL_LIB_CTX *libctx)
|
|
{
|
|
CMS_ReceiptRequest *rr;
|
|
|
|
rr = CMS_ReceiptRequest_new();
|
|
if (rr == NULL)
|
|
goto merr;
|
|
if (id)
|
|
ASN1_STRING_set0(rr->signedContentIdentifier, id, idlen);
|
|
else {
|
|
if (!ASN1_STRING_set(rr->signedContentIdentifier, NULL, 32))
|
|
goto merr;
|
|
if (RAND_bytes_ex(libctx, rr->signedContentIdentifier->data, 32,
|
|
0) <= 0)
|
|
goto err;
|
|
}
|
|
|
|
sk_GENERAL_NAMES_pop_free(rr->receiptsTo, GENERAL_NAMES_free);
|
|
rr->receiptsTo = receiptsTo;
|
|
|
|
if (receiptList != NULL) {
|
|
rr->receiptsFrom->type = 1;
|
|
rr->receiptsFrom->d.receiptList = receiptList;
|
|
} else {
|
|
rr->receiptsFrom->type = 0;
|
|
rr->receiptsFrom->d.allOrFirstTier = allorfirst;
|
|
}
|
|
|
|
return rr;
|
|
|
|
merr:
|
|
ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE);
|
|
|
|
err:
|
|
CMS_ReceiptRequest_free(rr);
|
|
return NULL;
|
|
|
|
}
|
|
|
|
CMS_ReceiptRequest *CMS_ReceiptRequest_create0(
|
|
unsigned char *id, int idlen, int allorfirst,
|
|
STACK_OF(GENERAL_NAMES) *receiptList, STACK_OF(GENERAL_NAMES) *receiptsTo)
|
|
{
|
|
return CMS_ReceiptRequest_create0_ex(id, idlen, allorfirst, receiptList,
|
|
receiptsTo, NULL);
|
|
}
|
|
|
|
int CMS_add1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest *rr)
|
|
{
|
|
unsigned char *rrder = NULL;
|
|
int rrderlen, r = 0;
|
|
|
|
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;
|
|
|
|
r = 1;
|
|
|
|
merr:
|
|
if (!r)
|
|
ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE);
|
|
|
|
OPENSSL_free(rrder);
|
|
|
|
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 != NULL)
|
|
*pcid = rr->signedContentIdentifier;
|
|
if (rr->receiptsFrom->type == 0) {
|
|
if (pallorfirst != NULL)
|
|
*pallorfirst = (int)rr->receiptsFrom->d.allOrFirstTier;
|
|
if (plist != NULL)
|
|
*plist = NULL;
|
|
} else {
|
|
if (pallorfirst != NULL)
|
|
*pallorfirst = -1;
|
|
if (plist != NULL)
|
|
*plist = rr->receiptsFrom->d.receiptList;
|
|
}
|
|
if (prto != NULL)
|
|
*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 = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
|
|
|
|
if (md == NULL)
|
|
return 0;
|
|
if (!ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(CMS_Attributes_Verify), md,
|
|
si->signedAttrs, dig, diglen,
|
|
ossl_cms_ctx_get0_libctx(si->cms_ctx),
|
|
ossl_cms_ctx_get0_propq(si->cms_ctx)))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
/* Add a msgSigDigest attribute to a SignerInfo */
|
|
|
|
int ossl_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)) {
|
|
ERR_raise(ERR_LIB_CMS, 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)) {
|
|
ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* Verify signed receipt after it has already passed normal CMS verify */
|
|
|
|
int ossl_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) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NEED_ONE_SIGNER);
|
|
goto err;
|
|
}
|
|
|
|
/* Check receipt content type */
|
|
if (OBJ_obj2nid(CMS_get0_eContentType(cms)) != NID_id_smime_ct_receipt) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NOT_A_SIGNED_RECEIPT);
|
|
goto err;
|
|
}
|
|
|
|
/* Extract and decode receipt content */
|
|
pcont = CMS_get0_content(cms);
|
|
if (pcont == NULL || *pcont == NULL) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NO_CONTENT);
|
|
goto err;
|
|
}
|
|
|
|
rct = ASN1_item_unpack(*pcont, ASN1_ITEM_rptr(CMS_Receipt));
|
|
|
|
if (!rct) {
|
|
ERR_raise(ERR_LIB_CMS, 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)) {
|
|
ERR_raise(ERR_LIB_CMS, 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) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NO_MSGSIGDIGEST);
|
|
goto err;
|
|
}
|
|
|
|
if (!cms_msgSigDigest(osi, dig, &diglen)) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_MSGSIGDIGEST_ERROR);
|
|
goto err;
|
|
}
|
|
|
|
if (diglen != (unsigned int)msig->length) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_MSGSIGDIGEST_WRONG_LENGTH);
|
|
goto err;
|
|
}
|
|
|
|
if (memcmp(dig, msig->data, diglen)) {
|
|
ERR_raise(ERR_LIB_CMS, 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) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NO_CONTENT_TYPE);
|
|
goto err;
|
|
}
|
|
|
|
/* Compare details in receipt request */
|
|
|
|
if (OBJ_cmp(octype, rct->contentType)) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_CONTENT_TYPE_MISMATCH);
|
|
goto err;
|
|
}
|
|
|
|
/* Get original receipt request details */
|
|
|
|
if (CMS_get1_ReceiptRequest(osi, &rr) <= 0) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NO_RECEIPT_REQUEST);
|
|
goto err;
|
|
}
|
|
|
|
if (ASN1_STRING_cmp(rr->signedContentIdentifier,
|
|
rct->signedContentIdentifier)) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_CONTENTIDENTIFIER_MISMATCH);
|
|
goto err;
|
|
}
|
|
|
|
r = 1;
|
|
|
|
err:
|
|
CMS_ReceiptRequest_free(rr);
|
|
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 *ossl_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 */
|
|
|
|
if (CMS_get1_ReceiptRequest(si, &rr) <= 0) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NO_RECEIPT_REQUEST);
|
|
goto err;
|
|
}
|
|
|
|
/* Get original content type */
|
|
|
|
ctype = CMS_signed_get0_data_by_OBJ(si,
|
|
OBJ_nid2obj(NID_pkcs9_contentType),
|
|
-3, V_ASN1_OBJECT);
|
|
if (!ctype) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NO_CONTENT_TYPE);
|
|
goto err;
|
|
}
|
|
|
|
rct.version = 1;
|
|
rct.contentType = ctype;
|
|
rct.signedContentIdentifier = rr->signedContentIdentifier;
|
|
rct.originatorSignatureValue = si->signature;
|
|
|
|
os = ASN1_item_pack(&rct, ASN1_ITEM_rptr(CMS_Receipt), NULL);
|
|
|
|
err:
|
|
CMS_ReceiptRequest_free(rr);
|
|
return os;
|
|
}
|