mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
9311d0c471
This includes error reporting for libcrypto sub-libraries in surprising places. This was done using util/err-to-raise Reviewed-by: Paul Dale <paul.dale@oracle.com> (Merged from https://github.com/openssl/openssl/pull/13318)
254 lines
7.2 KiB
C
254 lines
7.2 KiB
C
/*
|
|
* Copyright 2006-2020 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 <assert.h>
|
|
#include <openssl/cms.h>
|
|
#include <openssl/err.h>
|
|
#include "crypto/asn1.h"
|
|
#include "crypto/rsa.h"
|
|
#include "cms_local.h"
|
|
|
|
static RSA_OAEP_PARAMS *rsa_oaep_decode(const X509_ALGOR *alg)
|
|
{
|
|
RSA_OAEP_PARAMS *oaep;
|
|
|
|
oaep = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(RSA_OAEP_PARAMS),
|
|
alg->parameter);
|
|
|
|
if (oaep == NULL)
|
|
return NULL;
|
|
|
|
if (oaep->maskGenFunc != NULL) {
|
|
oaep->maskHash = x509_algor_mgf1_decode(oaep->maskGenFunc);
|
|
if (oaep->maskHash == NULL) {
|
|
RSA_OAEP_PARAMS_free(oaep);
|
|
return NULL;
|
|
}
|
|
}
|
|
return oaep;
|
|
}
|
|
|
|
static int rsa_cms_decrypt(CMS_RecipientInfo *ri)
|
|
{
|
|
EVP_PKEY_CTX *pkctx;
|
|
X509_ALGOR *cmsalg;
|
|
int nid;
|
|
int rv = -1;
|
|
unsigned char *label = NULL;
|
|
int labellen = 0;
|
|
const EVP_MD *mgf1md = NULL, *md = NULL;
|
|
RSA_OAEP_PARAMS *oaep;
|
|
|
|
pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
|
|
if (pkctx == NULL)
|
|
return 0;
|
|
if (!CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &cmsalg))
|
|
return -1;
|
|
nid = OBJ_obj2nid(cmsalg->algorithm);
|
|
if (nid == NID_rsaEncryption)
|
|
return 1;
|
|
if (nid != NID_rsaesOaep) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_ENCRYPTION_TYPE);
|
|
return -1;
|
|
}
|
|
/* Decode OAEP parameters */
|
|
oaep = rsa_oaep_decode(cmsalg);
|
|
|
|
if (oaep == NULL) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_INVALID_OAEP_PARAMETERS);
|
|
goto err;
|
|
}
|
|
|
|
mgf1md = x509_algor_get_md(oaep->maskHash);
|
|
if (mgf1md == NULL)
|
|
goto err;
|
|
md = x509_algor_get_md(oaep->hashFunc);
|
|
if (md == NULL)
|
|
goto err;
|
|
|
|
if (oaep->pSourceFunc != NULL) {
|
|
X509_ALGOR *plab = oaep->pSourceFunc;
|
|
|
|
if (OBJ_obj2nid(plab->algorithm) != NID_pSpecified) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_LABEL_SOURCE);
|
|
goto err;
|
|
}
|
|
if (plab->parameter->type != V_ASN1_OCTET_STRING) {
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_INVALID_LABEL);
|
|
goto err;
|
|
}
|
|
|
|
label = plab->parameter->value.octet_string->data;
|
|
/* Stop label being freed when OAEP parameters are freed */
|
|
plab->parameter->value.octet_string->data = NULL;
|
|
labellen = plab->parameter->value.octet_string->length;
|
|
}
|
|
|
|
if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_OAEP_PADDING) <= 0)
|
|
goto err;
|
|
if (EVP_PKEY_CTX_set_rsa_oaep_md(pkctx, md) <= 0)
|
|
goto err;
|
|
if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0)
|
|
goto err;
|
|
if (label != NULL
|
|
&& EVP_PKEY_CTX_set0_rsa_oaep_label(pkctx, label, labellen) <= 0)
|
|
goto err;
|
|
/* Carry on */
|
|
rv = 1;
|
|
|
|
err:
|
|
RSA_OAEP_PARAMS_free(oaep);
|
|
return rv;
|
|
}
|
|
|
|
static int rsa_cms_encrypt(CMS_RecipientInfo *ri)
|
|
{
|
|
const EVP_MD *md, *mgf1md;
|
|
RSA_OAEP_PARAMS *oaep = NULL;
|
|
ASN1_STRING *os = NULL;
|
|
X509_ALGOR *alg;
|
|
EVP_PKEY_CTX *pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
|
|
int pad_mode = RSA_PKCS1_PADDING, rv = 0, labellen;
|
|
unsigned char *label;
|
|
|
|
if (CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &alg) <= 0)
|
|
return 0;
|
|
if (pkctx != NULL) {
|
|
if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
|
|
return 0;
|
|
}
|
|
if (pad_mode == RSA_PKCS1_PADDING) {
|
|
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
|
|
return 1;
|
|
}
|
|
/* Not supported */
|
|
if (pad_mode != RSA_PKCS1_OAEP_PADDING)
|
|
return 0;
|
|
if (EVP_PKEY_CTX_get_rsa_oaep_md(pkctx, &md) <= 0)
|
|
goto err;
|
|
if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0)
|
|
goto err;
|
|
labellen = EVP_PKEY_CTX_get0_rsa_oaep_label(pkctx, &label);
|
|
if (labellen < 0)
|
|
goto err;
|
|
oaep = RSA_OAEP_PARAMS_new();
|
|
if (oaep == NULL)
|
|
goto err;
|
|
if (!x509_algor_new_from_md(&oaep->hashFunc, md))
|
|
goto err;
|
|
if (!x509_algor_md_to_mgf1(&oaep->maskGenFunc, mgf1md))
|
|
goto err;
|
|
if (labellen > 0) {
|
|
ASN1_OCTET_STRING *los;
|
|
|
|
oaep->pSourceFunc = X509_ALGOR_new();
|
|
if (oaep->pSourceFunc == NULL)
|
|
goto err;
|
|
los = ASN1_OCTET_STRING_new();
|
|
if (los == NULL)
|
|
goto err;
|
|
if (!ASN1_OCTET_STRING_set(los, label, labellen)) {
|
|
ASN1_OCTET_STRING_free(los);
|
|
goto err;
|
|
}
|
|
X509_ALGOR_set0(oaep->pSourceFunc, OBJ_nid2obj(NID_pSpecified),
|
|
V_ASN1_OCTET_STRING, los);
|
|
}
|
|
/* create string with pss parameter encoding. */
|
|
if (!ASN1_item_pack(oaep, ASN1_ITEM_rptr(RSA_OAEP_PARAMS), &os))
|
|
goto err;
|
|
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaesOaep), V_ASN1_SEQUENCE, os);
|
|
os = NULL;
|
|
rv = 1;
|
|
err:
|
|
RSA_OAEP_PARAMS_free(oaep);
|
|
ASN1_STRING_free(os);
|
|
return rv;
|
|
}
|
|
|
|
int cms_rsa_envelope(CMS_RecipientInfo *ri, int decrypt)
|
|
{
|
|
assert(decrypt == 0 || decrypt == 1);
|
|
|
|
if (decrypt == 1)
|
|
return rsa_cms_decrypt(ri);
|
|
|
|
if (decrypt == 0)
|
|
return rsa_cms_encrypt(ri);
|
|
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
|
|
return 0;
|
|
}
|
|
|
|
static int rsa_cms_sign(CMS_SignerInfo *si)
|
|
{
|
|
int pad_mode = RSA_PKCS1_PADDING;
|
|
X509_ALGOR *alg;
|
|
EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si);
|
|
ASN1_STRING *os = NULL;
|
|
|
|
CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg);
|
|
if (pkctx != NULL) {
|
|
if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
|
|
return 0;
|
|
}
|
|
if (pad_mode == RSA_PKCS1_PADDING) {
|
|
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
|
|
return 1;
|
|
}
|
|
/* We don't support it */
|
|
if (pad_mode != RSA_PKCS1_PSS_PADDING)
|
|
return 0;
|
|
os = ossl_rsa_ctx_to_pss_string(pkctx);
|
|
if (os == NULL)
|
|
return 0;
|
|
X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_PKEY_RSA_PSS), V_ASN1_SEQUENCE, os);
|
|
return 1;
|
|
}
|
|
|
|
static int rsa_cms_verify(CMS_SignerInfo *si)
|
|
{
|
|
int nid, nid2;
|
|
X509_ALGOR *alg;
|
|
EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si);
|
|
EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(pkctx);
|
|
|
|
CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg);
|
|
nid = OBJ_obj2nid(alg->algorithm);
|
|
if (nid == EVP_PKEY_RSA_PSS)
|
|
return ossl_rsa_pss_to_ctx(NULL, pkctx, alg, NULL);
|
|
/* Only PSS allowed for PSS keys */
|
|
if (EVP_PKEY_is_a(pkey, "RSA-PSS")) {
|
|
ERR_raise(ERR_LIB_RSA, RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE);
|
|
return 0;
|
|
}
|
|
if (nid == NID_rsaEncryption)
|
|
return 1;
|
|
/* Workaround for some implementation that use a signature OID */
|
|
if (OBJ_find_sigid_algs(nid, NULL, &nid2)) {
|
|
if (nid2 == NID_rsaEncryption)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cms_rsa_sign(CMS_SignerInfo *si, int verify)
|
|
{
|
|
assert(verify == 0 || verify == 1);
|
|
|
|
if (verify == 1)
|
|
return rsa_cms_verify(si);
|
|
|
|
if (verify == 0)
|
|
return rsa_cms_sign(si);
|
|
|
|
ERR_raise(ERR_LIB_CMS, CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
|
|
return 0;
|
|
}
|