/*
- * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * 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
#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 "internal/numbers.h" /* includes SIZE_MAX */
#include "evp_local.h"
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
static int update(EVP_MD_CTX *ctx, const void *data, size_t datalen)
{
- EVPerr(EVP_F_UPDATE, EVP_R_ONLY_ONESHOT_SUPPORTED);
+ ERR_raise(ERR_LIB_EVP, EVP_R_ONLY_ONESHOT_SUPPORTED);
return 0;
}
static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
const EVP_MD *type, const char *mdname,
- const char *props, ENGINE *e, EVP_PKEY *pkey,
- int ver)
+ OSSL_LIB_CTX *libctx, const char *props,
+ ENGINE *e, EVP_PKEY *pkey, int ver,
+ const OSSL_PARAM params[])
{
EVP_PKEY_CTX *locpctx = NULL;
EVP_SIGNATURE *signature = NULL;
void *provkey = NULL;
int ret;
- if (ctx->provctx != NULL) {
+ if (ctx->algctx != 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;
+ ctx->digest->freectx(ctx->algctx);
+ ctx->algctx = NULL;
}
- if (ctx->pctx == NULL)
- ctx->pctx = EVP_PKEY_CTX_new(pkey, e);
+ 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);
- /*
- * TODO when we stop falling back to legacy, this and the ERR_pop_to_mark()
- * calls can be removed.
- */
+ if (props == NULL)
+ props = locpctx->propquery;
+
ERR_set_mark();
- if (locpctx->engine != NULL || locpctx->keytype == NULL)
+ if (evp_pkey_ctx_is_legacy(locpctx))
goto legacy;
/*
* Ensure that the key is provided, either natively, or as a cached export.
- * If not, go legacy
*/
tmp_keymgmt = locpctx->keymgmt;
provkey = evp_pkey_export_to_provider(locpctx->pkey, locpctx->libctx,
&tmp_keymgmt, locpctx->propquery);
- if (provkey == NULL)
- goto legacy;
+ if (provkey == NULL) {
+ ERR_clear_last_mark();
+ 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);
locpctx->propquery);
if (signature == NULL
- || (EVP_KEYMGMT_provider(locpctx->keymgmt)
- != EVP_SIGNATURE_provider(signature))) {
+ || (EVP_KEYMGMT_get0_provider(locpctx->keymgmt)
+ != EVP_SIGNATURE_get0_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().
}
/*
- * 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.
*/
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));
- if (locpctx->op.sig.sigprovctx == NULL) {
+ locpctx->op.sig.algctx
+ = signature->newctx(ossl_provider_ctx(signature->prov), props);
+ if (locpctx->op.sig.algctx == 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));
+ mdname = canon_mdname(EVP_MD_get0_name(type));
} else {
- if (mdname == NULL
- && EVP_PKEY_get_default_digest_name(locpctx->pkey, locmdname,
- sizeof(locmdname)))
- mdname = canon_mdname(locmdname);
+ 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) {
/*
- * This might be requested by a later call to EVP_MD_CTX_md().
+ * 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_get0_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->reqdigest = ctx->fetched_digest =
- EVP_MD_fetch(locpctx->libctx, mdname, props);
+ 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();
}
}
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
goto err;
}
- ret = signature->digest_verify_init(locpctx->op.sig.sigprovctx,
- mdname, props, provkey);
+ ret = signature->digest_verify_init(locpctx->op.sig.algctx,
+ 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, props, provkey);
+ ret = signature->digest_sign_init(locpctx->op.sig.algctx,
+ mdname, provkey, params);
}
- return ret ? 1 : 0;
+ /*
+ * If the operation was not a success and no digest was found, an error
+ * needs to be raised.
+ */
+ if (ret > 0 || mdname != NULL)
+ goto end;
+ if (type == NULL) /* This check is redundant but clarifies matters */
+ ERR_raise(ERR_LIB_EVP, EVP_R_NO_DEFAULT_DIGEST);
+
err:
evp_pkey_ctx_free_old_ops(locpctx);
locpctx->operation = EVP_PKEY_OP_UNDEFINED;
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) {
- EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return 0;
}
}
if (type == NULL) {
- EVPerr(EVP_F_DO_SIGVER_INIT, EVP_R_NO_DEFAULT_DIGEST);
+ ERR_raise(ERR_LIB_EVP, EVP_R_NO_DEFAULT_DIGEST);
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)
- return ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx);
+ ctx->pctx->flag_call_digest_custom = 1;
- return 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, const char *props, EVP_PKEY *pkey)
+ const char *mdname, OSSL_LIB_CTX *libctx,
+ const char *props, EVP_PKEY *pkey,
+ const OSSL_PARAM params[])
{
- return do_sigver_init(ctx, pctx, NULL, mdname, props, NULL, pkey, 0);
+ 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, e, pkey, 0);
+ 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, const char *props,
- EVP_PKEY *pkey)
+ const char *mdname, OSSL_LIB_CTX *libctx,
+ const char *props, EVP_PKEY *pkey,
+ const OSSL_PARAM params[])
{
- return do_sigver_init(ctx, pctx, NULL, mdname, props, NULL, pkey, 1);
+ 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, e, pkey, 1);
+ return do_sigver_init(ctx, pctx, type, NULL, NULL, NULL, e, pkey, 1,
+ NULL);
}
#endif /* FIPS_MDOE */
if (pctx == NULL
|| pctx->operation != EVP_PKEY_OP_SIGNCTX
- || pctx->op.sig.sigprovctx == NULL
+ || pctx->op.sig.algctx == NULL
|| pctx->op.sig.signature == NULL)
goto legacy;
return 0;
}
- return pctx->op.sig.signature->digest_sign_update(pctx->op.sig.sigprovctx,
+ return pctx->op.sig.signature->digest_sign_update(pctx->op.sig.algctx,
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);
}
if (pctx == NULL
|| pctx->operation != EVP_PKEY_OP_VERIFYCTX
- || pctx->op.sig.sigprovctx == NULL
+ || pctx->op.sig.algctx == NULL
|| pctx->op.sig.signature == NULL)
goto legacy;
return 0;
}
- return pctx->op.sig.signature->digest_verify_update(pctx->op.sig.sigprovctx,
+ return pctx->op.sig.signature->digest_verify_update(pctx->op.sig.algctx,
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_MODE
+#ifndef FIPS_MODULE
int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
size_t *siglen)
{
if (pctx == NULL
|| pctx->operation != EVP_PKEY_OP_SIGNCTX
- || pctx->op.sig.sigprovctx == NULL
+ || pctx->op.sig.algctx == NULL
|| pctx->op.sig.signature == NULL)
goto legacy;
- return pctx->op.sig.signature->digest_sign_final(pctx->op.sig.sigprovctx,
+ return pctx->op.sig.signature->digest_sign_final(pctx->op.sig.algctx,
sigret, siglen, SIZE_MAX);
legacy:
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 (pctx->pmeth->signctx(pctx, sigret, siglen, ctx) <= 0)
return 0;
} else {
- int s = EVP_MD_size(ctx->digest);
+ int s = EVP_MD_get_size(ctx->digest);
if (s < 0 || EVP_PKEY_sign(pctx, sigret, siglen, NULL, s) <= 0)
return 0;
if (pctx != NULL
&& pctx->operation == EVP_PKEY_OP_SIGNCTX
- && pctx->op.sig.sigprovctx != NULL
+ && pctx->op.sig.algctx != 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,
+ return pctx->op.sig.signature->digest_sign(pctx->op.sig.algctx,
sigret, siglen, SIZE_MAX,
tbs, tbslen);
} else {
if (pctx == NULL
|| pctx->operation != EVP_PKEY_OP_VERIFYCTX
- || pctx->op.sig.sigprovctx == NULL
+ || pctx->op.sig.algctx == NULL
|| pctx->op.sig.signature == NULL)
goto legacy;
- return pctx->op.sig.signature->digest_verify_final(pctx->op.sig.sigprovctx,
+ return pctx->op.sig.signature->digest_verify_final(pctx->op.sig.algctx,
sig, siglen);
legacy:
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
if (pctx != NULL
&& pctx->operation == EVP_PKEY_OP_VERIFYCTX
- && pctx->op.sig.sigprovctx != NULL
+ && pctx->op.sig.algctx != 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,
+ return pctx->op.sig.signature->digest_verify(pctx->op.sig.algctx,
sigret, siglen,
tbs, tbslen);
} else {
return -1;
return EVP_DigestVerifyFinal(ctx, sigret, siglen);
}
-#endif /* FIPS_MODE */
+#endif /* FIPS_MODULE */
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