mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
4b58d9b41b
Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/14383)
593 lines
19 KiB
C
593 lines
19 KiB
C
/*
|
|
* Copyright 2006-2021 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 <stdio.h>
|
|
#include "internal/cryptlib.h"
|
|
#include <openssl/evp.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/x509.h>
|
|
#include "crypto/evp.h"
|
|
#include "internal/provider.h"
|
|
#include "evp_local.h"
|
|
|
|
#ifndef FIPS_MODULE
|
|
|
|
static int update(EVP_MD_CTX *ctx, const void *data, size_t datalen)
|
|
{
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_ONLY_ONESHOT_SUPPORTED);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If we get the "NULL" md then the name comes back as "UNDEF". We want to use
|
|
* NULL for this.
|
|
*/
|
|
static const char *canon_mdname(const char *mdname)
|
|
{
|
|
if (mdname != NULL && strcmp(mdname, "UNDEF") == 0)
|
|
return NULL;
|
|
|
|
return mdname;
|
|
}
|
|
|
|
static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const EVP_MD *type, const char *mdname,
|
|
OSSL_LIB_CTX *libctx, const char *props,
|
|
ENGINE *e, EVP_PKEY *pkey, int ver,
|
|
OSSL_PARAM params[])
|
|
{
|
|
EVP_PKEY_CTX *locpctx = NULL;
|
|
EVP_SIGNATURE *signature = NULL;
|
|
EVP_KEYMGMT *tmp_keymgmt = NULL;
|
|
const char *supported_sig = NULL;
|
|
char locmdname[80] = ""; /* 80 chars should be enough */
|
|
void *provkey = NULL;
|
|
int ret;
|
|
|
|
if (ctx->provctx != NULL) {
|
|
if (!ossl_assert(ctx->digest != NULL)) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
return 0;
|
|
}
|
|
if (ctx->digest->freectx != NULL)
|
|
ctx->digest->freectx(ctx->provctx);
|
|
ctx->provctx = NULL;
|
|
}
|
|
|
|
if (ctx->pctx == NULL) {
|
|
if (e == NULL)
|
|
ctx->pctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, props);
|
|
else
|
|
ctx->pctx = EVP_PKEY_CTX_new(pkey, e);
|
|
}
|
|
if (ctx->pctx == NULL)
|
|
return 0;
|
|
|
|
locpctx = ctx->pctx;
|
|
evp_pkey_ctx_free_old_ops(locpctx);
|
|
|
|
if (props == NULL)
|
|
props = locpctx->propquery;
|
|
|
|
/*
|
|
* TODO when we stop falling back to legacy, this and the ERR_pop_to_mark()
|
|
* calls can be removed.
|
|
*/
|
|
ERR_set_mark();
|
|
|
|
if (evp_pkey_ctx_is_legacy(locpctx))
|
|
goto legacy;
|
|
|
|
/*
|
|
* Ensure that the key is provided, either natively, or as a cached export.
|
|
*/
|
|
tmp_keymgmt = locpctx->keymgmt;
|
|
provkey = evp_pkey_export_to_provider(locpctx->pkey, locpctx->libctx,
|
|
&tmp_keymgmt, locpctx->propquery);
|
|
if (provkey == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
goto err;
|
|
}
|
|
if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) {
|
|
ERR_clear_last_mark();
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
goto err;
|
|
}
|
|
EVP_KEYMGMT_free(locpctx->keymgmt);
|
|
locpctx->keymgmt = tmp_keymgmt;
|
|
|
|
if (locpctx->keymgmt->query_operation_name != NULL)
|
|
supported_sig =
|
|
locpctx->keymgmt->query_operation_name(OSSL_OP_SIGNATURE);
|
|
|
|
/*
|
|
* If we didn't get a supported sig, assume there is one with the
|
|
* same name as the key type.
|
|
*/
|
|
if (supported_sig == NULL)
|
|
supported_sig = locpctx->keytype;
|
|
|
|
/*
|
|
* Because we cleared out old ops, we shouldn't need to worry about
|
|
* checking if signature is already there.
|
|
*/
|
|
signature = EVP_SIGNATURE_fetch(locpctx->libctx, supported_sig,
|
|
locpctx->propquery);
|
|
|
|
if (signature == NULL
|
|
|| (EVP_KEYMGMT_provider(locpctx->keymgmt)
|
|
!= EVP_SIGNATURE_provider(signature))) {
|
|
/*
|
|
* We don't need to free ctx->keymgmt here, as it's not necessarily
|
|
* tied to this operation. It will be freed by EVP_PKEY_CTX_free().
|
|
*/
|
|
EVP_SIGNATURE_free(signature);
|
|
goto legacy;
|
|
}
|
|
|
|
/*
|
|
* TODO remove this when legacy is gone
|
|
* If we don't have the full support we need with provided methods,
|
|
* let's go see if legacy does.
|
|
*/
|
|
ERR_pop_to_mark();
|
|
|
|
/* No more legacy from here down to legacy: */
|
|
|
|
if (pctx != NULL)
|
|
*pctx = locpctx;
|
|
|
|
locpctx->op.sig.signature = signature;
|
|
locpctx->operation = ver ? EVP_PKEY_OP_VERIFYCTX
|
|
: EVP_PKEY_OP_SIGNCTX;
|
|
locpctx->op.sig.sigprovctx
|
|
= signature->newctx(ossl_provider_ctx(signature->prov), props);
|
|
if (locpctx->op.sig.sigprovctx == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
goto err;
|
|
}
|
|
if (type != NULL) {
|
|
ctx->reqdigest = type;
|
|
if (mdname == NULL)
|
|
mdname = canon_mdname(EVP_MD_name(type));
|
|
} else {
|
|
if (mdname == NULL) {
|
|
if (evp_keymgmt_util_get_deflt_digest_name(tmp_keymgmt, provkey,
|
|
locmdname,
|
|
sizeof(locmdname)) > 0) {
|
|
mdname = canon_mdname(locmdname);
|
|
}
|
|
}
|
|
|
|
if (mdname != NULL) {
|
|
/*
|
|
* We're about to get a new digest so clear anything associated with
|
|
* an old digest.
|
|
*/
|
|
evp_md_ctx_clear_digest(ctx, 1);
|
|
|
|
/* legacy code support for engines */
|
|
ERR_set_mark();
|
|
/*
|
|
* This might be requested by a later call to EVP_MD_CTX_md().
|
|
* In that case the "explicit fetch" rules apply for that
|
|
* function (as per man pages), i.e. the ref count is not updated
|
|
* so the EVP_MD should not be used beyound the lifetime of the
|
|
* EVP_MD_CTX.
|
|
*/
|
|
ctx->fetched_digest = EVP_MD_fetch(locpctx->libctx, mdname, props);
|
|
if (ctx->fetched_digest != NULL) {
|
|
ctx->digest = ctx->reqdigest = ctx->fetched_digest;
|
|
} else {
|
|
/* legacy engine support : remove the mark when this is deleted */
|
|
ctx->reqdigest = ctx->digest = EVP_get_digestbyname(mdname);
|
|
if (ctx->digest == NULL) {
|
|
(void)ERR_clear_last_mark();
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
goto err;
|
|
}
|
|
}
|
|
(void)ERR_pop_to_mark();
|
|
}
|
|
}
|
|
|
|
if (ver) {
|
|
if (signature->digest_verify_init == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
goto err;
|
|
}
|
|
ret = signature->digest_verify_init(locpctx->op.sig.sigprovctx,
|
|
mdname, provkey, params);
|
|
} else {
|
|
if (signature->digest_sign_init == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
goto err;
|
|
}
|
|
ret = signature->digest_sign_init(locpctx->op.sig.sigprovctx,
|
|
mdname, provkey, params);
|
|
}
|
|
|
|
goto end;
|
|
|
|
err:
|
|
evp_pkey_ctx_free_old_ops(locpctx);
|
|
locpctx->operation = EVP_PKEY_OP_UNDEFINED;
|
|
return 0;
|
|
|
|
legacy:
|
|
/*
|
|
* TODO remove this when legacy is gone
|
|
* If we don't have the full support we need with provided methods,
|
|
* let's go see if legacy does.
|
|
*/
|
|
ERR_pop_to_mark();
|
|
|
|
if (type == NULL && mdname != NULL)
|
|
type = evp_get_digestbyname_ex(locpctx->libctx, mdname);
|
|
|
|
if (ctx->pctx->pmeth == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (!(ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)) {
|
|
|
|
if (type == NULL) {
|
|
int def_nid;
|
|
if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) > 0)
|
|
type = EVP_get_digestbynid(def_nid);
|
|
}
|
|
|
|
if (type == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_NO_DEFAULT_DIGEST);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (ver) {
|
|
if (ctx->pctx->pmeth->verifyctx_init) {
|
|
if (ctx->pctx->pmeth->verifyctx_init(ctx->pctx, ctx) <= 0)
|
|
return 0;
|
|
ctx->pctx->operation = EVP_PKEY_OP_VERIFYCTX;
|
|
} else if (ctx->pctx->pmeth->digestverify != 0) {
|
|
ctx->pctx->operation = EVP_PKEY_OP_VERIFY;
|
|
ctx->update = update;
|
|
} else if (EVP_PKEY_verify_init(ctx->pctx) <= 0) {
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (ctx->pctx->pmeth->signctx_init) {
|
|
if (ctx->pctx->pmeth->signctx_init(ctx->pctx, ctx) <= 0)
|
|
return 0;
|
|
ctx->pctx->operation = EVP_PKEY_OP_SIGNCTX;
|
|
} else if (ctx->pctx->pmeth->digestsign != 0) {
|
|
ctx->pctx->operation = EVP_PKEY_OP_SIGN;
|
|
ctx->update = update;
|
|
} else if (EVP_PKEY_sign_init(ctx->pctx) <= 0) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (EVP_PKEY_CTX_set_signature_md(ctx->pctx, type) <= 0)
|
|
return 0;
|
|
if (pctx)
|
|
*pctx = ctx->pctx;
|
|
if (ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)
|
|
return 1;
|
|
if (!EVP_DigestInit_ex(ctx, type, e))
|
|
return 0;
|
|
/*
|
|
* This indicates the current algorithm requires
|
|
* special treatment before hashing the tbs-message.
|
|
*/
|
|
ctx->pctx->flag_call_digest_custom = 0;
|
|
if (ctx->pctx->pmeth->digest_custom != NULL)
|
|
ctx->pctx->flag_call_digest_custom = 1;
|
|
|
|
ret = 1;
|
|
|
|
end:
|
|
#ifndef FIPS_MODULE
|
|
if (ret > 0)
|
|
ret = evp_pkey_ctx_use_cached_data(locpctx);
|
|
#endif
|
|
|
|
return ret > 0 ? 1 : 0;
|
|
}
|
|
|
|
int EVP_DigestSignInit_ex(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const char *mdname, OSSL_LIB_CTX *libctx,
|
|
const char *props, EVP_PKEY *pkey,
|
|
OSSL_PARAM params[])
|
|
{
|
|
return do_sigver_init(ctx, pctx, NULL, mdname, libctx, props, NULL, pkey, 0,
|
|
params);
|
|
}
|
|
|
|
int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
|
|
{
|
|
return do_sigver_init(ctx, pctx, type, NULL, NULL, NULL, e, pkey, 0,
|
|
NULL);
|
|
}
|
|
|
|
int EVP_DigestVerifyInit_ex(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const char *mdname, OSSL_LIB_CTX *libctx,
|
|
const char *props, EVP_PKEY *pkey,
|
|
OSSL_PARAM params[])
|
|
{
|
|
return do_sigver_init(ctx, pctx, NULL, mdname, libctx, props, NULL, pkey, 1,
|
|
params);
|
|
}
|
|
|
|
int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
|
|
{
|
|
return do_sigver_init(ctx, pctx, type, NULL, NULL, NULL, e, pkey, 1,
|
|
NULL);
|
|
}
|
|
#endif /* FIPS_MDOE */
|
|
|
|
int EVP_DigestSignUpdate(EVP_MD_CTX *ctx, const void *data, size_t dsize)
|
|
{
|
|
EVP_PKEY_CTX *pctx = ctx->pctx;
|
|
|
|
if (pctx == NULL
|
|
|| pctx->operation != EVP_PKEY_OP_SIGNCTX
|
|
|| pctx->op.sig.sigprovctx == NULL
|
|
|| pctx->op.sig.signature == NULL)
|
|
goto legacy;
|
|
|
|
if (pctx->op.sig.signature->digest_sign_update == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
|
|
return pctx->op.sig.signature->digest_sign_update(pctx->op.sig.sigprovctx,
|
|
data, dsize);
|
|
|
|
legacy:
|
|
if (pctx != NULL) {
|
|
/* do_sigver_init() checked that |digest_custom| is non-NULL */
|
|
if (pctx->flag_call_digest_custom
|
|
&& !ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx))
|
|
return 0;
|
|
pctx->flag_call_digest_custom = 0;
|
|
}
|
|
|
|
return EVP_DigestUpdate(ctx, data, dsize);
|
|
}
|
|
|
|
int EVP_DigestVerifyUpdate(EVP_MD_CTX *ctx, const void *data, size_t dsize)
|
|
{
|
|
EVP_PKEY_CTX *pctx = ctx->pctx;
|
|
|
|
if (pctx == NULL
|
|
|| pctx->operation != EVP_PKEY_OP_VERIFYCTX
|
|
|| pctx->op.sig.sigprovctx == NULL
|
|
|| pctx->op.sig.signature == NULL)
|
|
goto legacy;
|
|
|
|
if (pctx->op.sig.signature->digest_verify_update == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
|
|
return pctx->op.sig.signature->digest_verify_update(pctx->op.sig.sigprovctx,
|
|
data, dsize);
|
|
|
|
legacy:
|
|
if (pctx != NULL) {
|
|
/* do_sigver_init() checked that |digest_custom| is non-NULL */
|
|
if (pctx->flag_call_digest_custom
|
|
&& !ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx))
|
|
return 0;
|
|
pctx->flag_call_digest_custom = 0;
|
|
}
|
|
|
|
return EVP_DigestUpdate(ctx, data, dsize);
|
|
}
|
|
|
|
#ifndef FIPS_MODULE
|
|
int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
|
|
size_t *siglen)
|
|
{
|
|
int sctx = 0, r = 0;
|
|
EVP_PKEY_CTX *pctx = ctx->pctx;
|
|
|
|
if (pctx == NULL
|
|
|| pctx->operation != EVP_PKEY_OP_SIGNCTX
|
|
|| pctx->op.sig.sigprovctx == NULL
|
|
|| pctx->op.sig.signature == NULL)
|
|
goto legacy;
|
|
|
|
return pctx->op.sig.signature->digest_sign_final(pctx->op.sig.sigprovctx,
|
|
sigret, siglen, SIZE_MAX);
|
|
|
|
legacy:
|
|
if (pctx == NULL || pctx->pmeth == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
/* do_sigver_init() checked that |digest_custom| is non-NULL */
|
|
if (pctx->flag_call_digest_custom
|
|
&& !ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx))
|
|
return 0;
|
|
pctx->flag_call_digest_custom = 0;
|
|
|
|
if (pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM) {
|
|
if (sigret == NULL)
|
|
return pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
|
|
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE)
|
|
r = pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
|
|
else {
|
|
EVP_PKEY_CTX *dctx = EVP_PKEY_CTX_dup(pctx);
|
|
|
|
if (dctx == NULL)
|
|
return 0;
|
|
r = dctx->pmeth->signctx(dctx, sigret, siglen, ctx);
|
|
EVP_PKEY_CTX_free(dctx);
|
|
}
|
|
return r;
|
|
}
|
|
if (pctx->pmeth->signctx != NULL)
|
|
sctx = 1;
|
|
else
|
|
sctx = 0;
|
|
if (sigret != NULL) {
|
|
unsigned char md[EVP_MAX_MD_SIZE];
|
|
unsigned int mdlen = 0;
|
|
|
|
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
|
|
if (sctx)
|
|
r = pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
|
|
} else {
|
|
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
|
|
|
|
if (tmp_ctx == NULL)
|
|
return 0;
|
|
if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
return 0;
|
|
}
|
|
if (sctx)
|
|
r = tmp_ctx->pctx->pmeth->signctx(tmp_ctx->pctx,
|
|
sigret, siglen, tmp_ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
}
|
|
if (sctx || !r)
|
|
return r;
|
|
if (EVP_PKEY_sign(pctx, sigret, siglen, md, mdlen) <= 0)
|
|
return 0;
|
|
} else {
|
|
if (sctx) {
|
|
if (pctx->pmeth->signctx(pctx, sigret, siglen, ctx) <= 0)
|
|
return 0;
|
|
} else {
|
|
int s = EVP_MD_size(ctx->digest);
|
|
|
|
if (s < 0 || EVP_PKEY_sign(pctx, sigret, siglen, NULL, s) <= 0)
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int EVP_DigestSign(EVP_MD_CTX *ctx, unsigned char *sigret, size_t *siglen,
|
|
const unsigned char *tbs, size_t tbslen)
|
|
{
|
|
EVP_PKEY_CTX *pctx = ctx->pctx;
|
|
|
|
if (pctx != NULL
|
|
&& pctx->operation == EVP_PKEY_OP_SIGNCTX
|
|
&& pctx->op.sig.sigprovctx != NULL
|
|
&& pctx->op.sig.signature != NULL) {
|
|
if (pctx->op.sig.signature->digest_sign != NULL)
|
|
return pctx->op.sig.signature->digest_sign(pctx->op.sig.sigprovctx,
|
|
sigret, siglen, SIZE_MAX,
|
|
tbs, tbslen);
|
|
} else {
|
|
/* legacy */
|
|
if (ctx->pctx->pmeth != NULL && ctx->pctx->pmeth->digestsign != NULL)
|
|
return ctx->pctx->pmeth->digestsign(ctx, sigret, siglen, tbs, tbslen);
|
|
}
|
|
|
|
if (sigret != NULL && EVP_DigestSignUpdate(ctx, tbs, tbslen) <= 0)
|
|
return 0;
|
|
return EVP_DigestSignFinal(ctx, sigret, siglen);
|
|
}
|
|
|
|
int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
|
|
size_t siglen)
|
|
{
|
|
unsigned char md[EVP_MAX_MD_SIZE];
|
|
int r = 0;
|
|
unsigned int mdlen = 0;
|
|
int vctx = 0;
|
|
EVP_PKEY_CTX *pctx = ctx->pctx;
|
|
|
|
if (pctx == NULL
|
|
|| pctx->operation != EVP_PKEY_OP_VERIFYCTX
|
|
|| pctx->op.sig.sigprovctx == NULL
|
|
|| pctx->op.sig.signature == NULL)
|
|
goto legacy;
|
|
|
|
return pctx->op.sig.signature->digest_verify_final(pctx->op.sig.sigprovctx,
|
|
sig, siglen);
|
|
|
|
legacy:
|
|
if (pctx == NULL || pctx->pmeth == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
/* do_sigver_init() checked that |digest_custom| is non-NULL */
|
|
if (pctx->flag_call_digest_custom
|
|
&& !ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx))
|
|
return 0;
|
|
pctx->flag_call_digest_custom = 0;
|
|
|
|
if (pctx->pmeth->verifyctx != NULL)
|
|
vctx = 1;
|
|
else
|
|
vctx = 0;
|
|
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
|
|
if (vctx)
|
|
r = pctx->pmeth->verifyctx(pctx, sig, siglen, ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
|
|
} else {
|
|
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
|
|
if (tmp_ctx == NULL)
|
|
return -1;
|
|
if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
return -1;
|
|
}
|
|
if (vctx)
|
|
r = tmp_ctx->pctx->pmeth->verifyctx(tmp_ctx->pctx,
|
|
sig, siglen, tmp_ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
}
|
|
if (vctx || !r)
|
|
return r;
|
|
return EVP_PKEY_verify(pctx, sig, siglen, md, mdlen);
|
|
}
|
|
|
|
int EVP_DigestVerify(EVP_MD_CTX *ctx, const unsigned char *sigret,
|
|
size_t siglen, const unsigned char *tbs, size_t tbslen)
|
|
{
|
|
EVP_PKEY_CTX *pctx = ctx->pctx;
|
|
|
|
if (pctx != NULL
|
|
&& pctx->operation == EVP_PKEY_OP_VERIFYCTX
|
|
&& pctx->op.sig.sigprovctx != NULL
|
|
&& pctx->op.sig.signature != NULL) {
|
|
if (pctx->op.sig.signature->digest_verify != NULL)
|
|
return pctx->op.sig.signature->digest_verify(pctx->op.sig.sigprovctx,
|
|
sigret, siglen,
|
|
tbs, tbslen);
|
|
} else {
|
|
/* legacy */
|
|
if (ctx->pctx->pmeth != NULL && ctx->pctx->pmeth->digestverify != NULL)
|
|
return ctx->pctx->pmeth->digestverify(ctx, sigret, siglen, tbs, tbslen);
|
|
}
|
|
|
|
if (EVP_DigestVerifyUpdate(ctx, tbs, tbslen) <= 0)
|
|
return -1;
|
|
return EVP_DigestVerifyFinal(ctx, sigret, siglen);
|
|
}
|
|
#endif /* FIPS_MODULE */
|