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/*
* Copyright 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 <stddef.h>
#include <string.h>
#include <openssl/provider.h>
#include <openssl/params.h>
#include <openssl/core_names.h>
#include <openssl/evp.h>
#include <openssl/store.h>
#include "testutil.h"
#include "fake_rsaprov.h"
static OSSL_LIB_CTX *libctx = NULL;
/* Fetch SIGNATURE method using a libctx and propq */
static int fetch_sig(OSSL_LIB_CTX *ctx, const char *alg, const char *propq,
OSSL_PROVIDER *expected_prov)
{
OSSL_PROVIDER *prov;
EVP_SIGNATURE *sig = EVP_SIGNATURE_fetch(ctx, "RSA", propq);
int ret = 0;
if (!TEST_ptr(sig))
return 0;
if (!TEST_ptr(prov = EVP_SIGNATURE_get0_provider(sig)))
goto end;
if (!TEST_ptr_eq(prov, expected_prov)) {
TEST_info("Fetched provider: %s, Expected provider: %s",
OSSL_PROVIDER_get0_name(prov),
OSSL_PROVIDER_get0_name(expected_prov));
goto end;
}
ret = 1;
end:
EVP_SIGNATURE_free(sig);
return ret;
}
static int test_pkey_sig(void)
{
OSSL_PROVIDER *deflt = NULL;
OSSL_PROVIDER *fake_rsa = NULL;
int i, ret = 0;
EVP_PKEY *pkey = NULL;
EVP_PKEY_CTX *ctx = NULL;
if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
return 0;
if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
goto end;
/* Do a direct fetch to see it works */
if (!TEST_true(fetch_sig(libctx, "RSA", "provider=fake-rsa", fake_rsa))
|| !TEST_true(fetch_sig(libctx, "RSA", "?provider=fake-rsa", fake_rsa)))
goto end;
/* Construct a pkey using precise propq to use our provider */
if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
"provider=fake-rsa"))
|| !TEST_true(EVP_PKEY_fromdata_init(ctx))
|| !TEST_true(EVP_PKEY_fromdata(ctx, &pkey, EVP_PKEY_KEYPAIR, NULL))
|| !TEST_ptr(pkey))
goto end;
EVP_PKEY_CTX_free(ctx);
ctx = NULL;
/* try exercising signature_init ops a few times */
for (i = 0; i < 3; i++) {
size_t siglen;
/*
* Create a signing context for our pkey with optional propq.
* The sign init should pick both keymgmt and signature from
* fake-rsa as the key is not exportable.
*/
if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey,
"?provider=default")))
goto end;
/*
* If this picks the wrong signature without realizing it
* we can get a segfault or some internal error. At least watch
* whether fake-rsa sign_init is is exercised by calling sign.
*/
if (!TEST_int_eq(EVP_PKEY_sign_init(ctx), 1))
goto end;
if (!TEST_int_eq(EVP_PKEY_sign(ctx, NULL, &siglen, NULL, 0), 1)
|| !TEST_size_t_eq(siglen, 256))
goto end;
EVP_PKEY_CTX_free(ctx);
ctx = NULL;
}
ret = 1;
end:
fake_rsa_finish(fake_rsa);
OSSL_PROVIDER_unload(deflt);
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(pkey);
return ret;
}
static int test_alternative_keygen_init(void)
{
EVP_PKEY_CTX *ctx = NULL;
OSSL_PROVIDER *deflt = NULL;
OSSL_PROVIDER *fake_rsa = NULL;
const OSSL_PROVIDER *provider;
const char *provname;
int ret = 0;
if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
goto end;
/* first try without the fake RSA provider loaded */
if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA", NULL)))
goto end;
if (!TEST_int_gt(EVP_PKEY_keygen_init(ctx), 0))
goto end;
if (!TEST_ptr(provider = EVP_PKEY_CTX_get0_provider(ctx)))
goto end;
if (!TEST_ptr(provname = OSSL_PROVIDER_get0_name(provider)))
goto end;
if (!TEST_str_eq(provname, "default"))
goto end;
EVP_PKEY_CTX_free(ctx);
ctx = NULL;
/* now load fake RSA and try again */
if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
return 0;
if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
"?provider=fake-rsa")))
goto end;
if (!TEST_int_gt(EVP_PKEY_keygen_init(ctx), 0))
goto end;
if (!TEST_ptr(provider = EVP_PKEY_CTX_get0_provider(ctx)))
goto end;
if (!TEST_ptr(provname = OSSL_PROVIDER_get0_name(provider)))
goto end;
if (!TEST_str_eq(provname, "fake-rsa"))
goto end;
ret = 1;
end:
fake_rsa_finish(fake_rsa);
OSSL_PROVIDER_unload(deflt);
EVP_PKEY_CTX_free(ctx);
return ret;
}
static int test_pkey_eq(void)
{
OSSL_PROVIDER *deflt = NULL;
OSSL_PROVIDER *fake_rsa = NULL;
EVP_PKEY *pkey_fake = NULL;
EVP_PKEY *pkey_dflt = NULL;
EVP_PKEY_CTX *ctx = NULL;
OSSL_PARAM *params = NULL;
int ret = 0;
if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
return 0;
if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
goto end;
/* Construct a public key for fake-rsa */
if (!TEST_ptr(params = fake_rsa_key_params(0))
|| !TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
"provider=fake-rsa"))
|| !TEST_true(EVP_PKEY_fromdata_init(ctx))
|| !TEST_true(EVP_PKEY_fromdata(ctx, &pkey_fake, EVP_PKEY_PUBLIC_KEY,
params))
|| !TEST_ptr(pkey_fake))
goto end;
EVP_PKEY_CTX_free(ctx);
ctx = NULL;
OSSL_PARAM_free(params);
params = NULL;
/* Construct a public key for default */
if (!TEST_ptr(params = fake_rsa_key_params(0))
|| !TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
"provider=default"))
|| !TEST_true(EVP_PKEY_fromdata_init(ctx))
|| !TEST_true(EVP_PKEY_fromdata(ctx, &pkey_dflt, EVP_PKEY_PUBLIC_KEY,
params))
|| !TEST_ptr(pkey_dflt))
goto end;
EVP_PKEY_CTX_free(ctx);
ctx = NULL;
OSSL_PARAM_free(params);
params = NULL;
/* now test for equality */
if (!TEST_int_eq(EVP_PKEY_eq(pkey_fake, pkey_dflt), 1))
goto end;
ret = 1;
end:
fake_rsa_finish(fake_rsa);
OSSL_PROVIDER_unload(deflt);
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(pkey_fake);
EVP_PKEY_free(pkey_dflt);
OSSL_PARAM_free(params);
return ret;
}
static int test_pkey_store(int idx)
{
OSSL_PROVIDER *deflt = NULL;
OSSL_PROVIDER *fake_rsa = NULL;
int ret = 0;
EVP_PKEY *pkey = NULL;
OSSL_STORE_LOADER *loader = NULL;
OSSL_STORE_CTX *ctx = NULL;
OSSL_STORE_INFO *info;
const char *propq = idx == 0 ? "?provider=fake-rsa"
: "?provider=default";
/* It's important to load the default provider first for this test */
if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
goto end;
if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
goto end;
if (!TEST_ptr(loader = OSSL_STORE_LOADER_fetch(libctx, "fake_rsa",
propq)))
goto end;
OSSL_STORE_LOADER_free(loader);
if (!TEST_ptr(ctx = OSSL_STORE_open_ex("fake_rsa:test", libctx, propq,
NULL, NULL, NULL, NULL, NULL)))
goto end;
while (!OSSL_STORE_eof(ctx)
&& (info = OSSL_STORE_load(ctx)) != NULL
&& pkey == NULL) {
if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY)
pkey = OSSL_STORE_INFO_get1_PKEY(info);
OSSL_STORE_INFO_free(info);
info = NULL;
}
if (!TEST_ptr(pkey) || !TEST_int_eq(EVP_PKEY_is_a(pkey, "RSA"), 1))
goto end;
ret = 1;
end:
fake_rsa_finish(fake_rsa);
OSSL_PROVIDER_unload(deflt);
OSSL_STORE_close(ctx);
EVP_PKEY_free(pkey);
return ret;
}
int setup_tests(void)
{
libctx = OSSL_LIB_CTX_new();
if (libctx == NULL)
return 0;
ADD_TEST(test_pkey_sig);
ADD_TEST(test_alternative_keygen_init);
ADD_TEST(test_pkey_eq);
ADD_ALL_TESTS(test_pkey_store, 2);
return 1;
}
void cleanup_tests(void)
{
OSSL_LIB_CTX_free(libctx);
}
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