Viewing file:  fake_rsaprov.c (11.59 KB) -rw-r--r--
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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 may obtain a copy of the License at
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
#include <string.h>
#include <openssl/core_names.h>
#include <openssl/core_object.h>
#include <openssl/rand.h>
#include <openssl/provider.h>
#include "testutil.h"
#include "fake_rsaprov.h"
static OSSL_FUNC_keymgmt_new_fn fake_rsa_keymgmt_new;
static OSSL_FUNC_keymgmt_free_fn fake_rsa_keymgmt_free;
static OSSL_FUNC_keymgmt_has_fn fake_rsa_keymgmt_has;
static OSSL_FUNC_keymgmt_query_operation_name_fn fake_rsa_keymgmt_query;
static OSSL_FUNC_keymgmt_import_fn fake_rsa_keymgmt_import;
static OSSL_FUNC_keymgmt_import_types_fn fake_rsa_keymgmt_imptypes;
static OSSL_FUNC_keymgmt_load_fn fake_rsa_keymgmt_load;
static int has_selection;
static int imptypes_selection;
static int query_id;
static void *fake_rsa_keymgmt_new(void *provctx)
{
unsigned char *keydata = OPENSSL_zalloc(1);
TEST_ptr(keydata);
/* clear test globals */
has_selection = 0;
imptypes_selection = 0;
query_id = 0;
return keydata;
}
static void fake_rsa_keymgmt_free(void *keydata)
{
OPENSSL_free(keydata);
}
static int fake_rsa_keymgmt_has(const void *key, int selection)
{
/* record global for checking */
has_selection = selection;
return 1;
}
static const char *fake_rsa_keymgmt_query(int id)
{
/* record global for checking */
query_id = id;
return "RSA";
}
static int fake_rsa_keymgmt_import(void *keydata, int selection,
const OSSL_PARAM *p)
{
unsigned char *fake_rsa_key = keydata;
/* key was imported */
*fake_rsa_key = 1;
return 1;
}
static const OSSL_PARAM fake_rsa_import_key_types[] = {
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_N, NULL, 0),
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_E, NULL, 0),
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_D, NULL, 0),
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR1, NULL, 0),
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR2, NULL, 0),
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT1, NULL, 0),
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT2, NULL, 0),
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, NULL, 0),
OSSL_PARAM_END
};
static const OSSL_PARAM *fake_rsa_keymgmt_imptypes(int selection)
{
/* record global for checking */
imptypes_selection = selection;
return fake_rsa_import_key_types;
}
static void *fake_rsa_keymgmt_load(const void *reference, size_t reference_sz)
{
unsigned char *key = NULL;
if (reference_sz != sizeof(key))
return NULL;
key = *(unsigned char **)reference;
if (*key != 1)
return NULL;
/* detach the reference */
*(unsigned char **)reference = NULL;
return key;
}
static void *fake_rsa_gen_init(void *provctx, int selection,
const OSSL_PARAM params[])
{
unsigned char *gctx = NULL;
if (!TEST_ptr(gctx = OPENSSL_malloc(1)))
return NULL;
*gctx = 1;
return gctx;
}
static void *fake_rsa_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
{
unsigned char *gctx = genctx;
static const unsigned char inited[] = { 1 };
unsigned char *keydata;
if (!TEST_ptr(gctx)
|| !TEST_mem_eq(gctx, sizeof(*gctx), inited, sizeof(inited)))
return NULL;
if (!TEST_ptr(keydata = fake_rsa_keymgmt_new(NULL)))
return NULL;
*keydata = 2;
return keydata;
}
static void fake_rsa_gen_cleanup(void *genctx)
{
OPENSSL_free(genctx);
}
static const OSSL_DISPATCH fake_rsa_keymgmt_funcs[] = {
{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))fake_rsa_keymgmt_new },
{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))fake_rsa_keymgmt_free} ,
{ OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))fake_rsa_keymgmt_has },
{ OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
(void (*)(void))fake_rsa_keymgmt_query },
{ OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))fake_rsa_keymgmt_import },
{ OSSL_FUNC_KEYMGMT_IMPORT_TYPES,
(void (*)(void))fake_rsa_keymgmt_imptypes },
{ OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))fake_rsa_keymgmt_load },
{ OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))fake_rsa_gen_init },
{ OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))fake_rsa_gen },
{ OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))fake_rsa_gen_cleanup },
{ 0, NULL }
};
static const OSSL_ALGORITHM fake_rsa_keymgmt_algs[] = {
{ "RSA:rsaEncryption", "provider=fake-rsa", fake_rsa_keymgmt_funcs, "Fake RSA Key Management" },
{ NULL, NULL, NULL, NULL }
};
static OSSL_FUNC_signature_newctx_fn fake_rsa_sig_newctx;
static OSSL_FUNC_signature_freectx_fn fake_rsa_sig_freectx;
static OSSL_FUNC_signature_sign_init_fn fake_rsa_sig_sign_init;
static OSSL_FUNC_signature_sign_fn fake_rsa_sig_sign;
static void *fake_rsa_sig_newctx(void *provctx, const char *propq)
{
unsigned char *sigctx = OPENSSL_zalloc(1);
TEST_ptr(sigctx);
return sigctx;
}
static void fake_rsa_sig_freectx(void *sigctx)
{
OPENSSL_free(sigctx);
}
static int fake_rsa_sig_sign_init(void *ctx, void *provkey,
const OSSL_PARAM params[])
{
unsigned char *sigctx = ctx;
unsigned char *keydata = provkey;
/* we must have a ctx */
if (!TEST_ptr(sigctx))
return 0;
/* we must have some initialized key */
if (!TEST_ptr(keydata) || !TEST_int_gt(keydata[0], 0))
return 0;
/* record that sign init was called */
*sigctx = 1;
return 1;
}
static int fake_rsa_sig_sign(void *ctx, unsigned char *sig,
size_t *siglen, size_t sigsize,
const unsigned char *tbs, size_t tbslen)
{
unsigned char *sigctx = ctx;
/* we must have a ctx and init was called upon it */
if (!TEST_ptr(sigctx) || !TEST_int_eq(*sigctx, 1))
return 0;
*siglen = 256;
/* record that the real sign operation was called */
if (sig != NULL) {
if (!TEST_int_ge(sigsize, *siglen))
return 0;
*sigctx = 2;
/* produce a fake signature */
memset(sig, 'a', *siglen);
}
return 1;
}
static const OSSL_DISPATCH fake_rsa_sig_funcs[] = {
{ OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))fake_rsa_sig_newctx },
{ OSSL_FUNC_SIGNATURE_FREECTX, (void (*)(void))fake_rsa_sig_freectx },
{ OSSL_FUNC_SIGNATURE_SIGN_INIT, (void (*)(void))fake_rsa_sig_sign_init },
{ OSSL_FUNC_SIGNATURE_SIGN, (void (*)(void))fake_rsa_sig_sign },
{ 0, NULL }
};
static const OSSL_ALGORITHM fake_rsa_sig_algs[] = {
{ "RSA:rsaEncryption", "provider=fake-rsa", fake_rsa_sig_funcs, "Fake RSA Signature" },
{ NULL, NULL, NULL, NULL }
};
static OSSL_FUNC_store_open_fn fake_rsa_st_open;
static OSSL_FUNC_store_settable_ctx_params_fn fake_rsa_st_settable_ctx_params;
static OSSL_FUNC_store_set_ctx_params_fn fake_rsa_st_set_ctx_params;
static OSSL_FUNC_store_load_fn fake_rsa_st_load;
static OSSL_FUNC_store_eof_fn fake_rsa_st_eof;
static OSSL_FUNC_store_close_fn fake_rsa_st_close;
static const char fake_rsa_scheme[] = "fake_rsa:";
static void *fake_rsa_st_open(void *provctx, const char *uri)
{
unsigned char *storectx = NULL;
/* First check whether the uri is ours */
if (strncmp(uri, fake_rsa_scheme, sizeof(fake_rsa_scheme) - 1) != 0)
return NULL;
storectx = OPENSSL_zalloc(1);
if (!TEST_ptr(storectx))
return NULL;
TEST_info("fake_rsa_open called");
return storectx;
}
static const OSSL_PARAM *fake_rsa_st_settable_ctx_params(void *provctx)
{
static const OSSL_PARAM known_settable_ctx_params[] = {
OSSL_PARAM_END
};
return known_settable_ctx_params;
}
static int fake_rsa_st_set_ctx_params(void *loaderctx,
const OSSL_PARAM params[])
{
return 1;
}
static int fake_rsa_st_load(void *loaderctx,
OSSL_CALLBACK *object_cb, void *object_cbarg,
OSSL_PASSPHRASE_CALLBACK *pw_cb, void *pw_cbarg)
{
unsigned char *storectx = loaderctx;
OSSL_PARAM params[4];
int object_type = OSSL_OBJECT_PKEY;
void *key = NULL;
int rv = 0;
switch (*storectx) {
case 0:
/* Construct a new key using our keymgmt functions */
if (!TEST_ptr(key = fake_rsa_keymgmt_new(NULL)))
break;
if (!TEST_int_gt(fake_rsa_keymgmt_import(key, 0, NULL), 0))
break;
params[0] =
OSSL_PARAM_construct_int(OSSL_OBJECT_PARAM_TYPE, &object_type);
params[1] =
OSSL_PARAM_construct_utf8_string(OSSL_OBJECT_PARAM_DATA_TYPE,
"RSA", 0);
/* The address of the key becomes the octet string */
params[2] =
OSSL_PARAM_construct_octet_string(OSSL_OBJECT_PARAM_REFERENCE,
&key, sizeof(key));
params[3] = OSSL_PARAM_construct_end();
rv = object_cb(params, object_cbarg);
*storectx = 1;
break;
case 2:
TEST_info("fake_rsa_load() called in error state");
break;
default:
TEST_info("fake_rsa_load() called in eof state");
break;
}
TEST_info("fake_rsa_load called - rv: %d", rv);
if (rv == 0) {
fake_rsa_keymgmt_free(key);
*storectx = 2;
}
return rv;
}
static int fake_rsa_st_eof(void *loaderctx)
{
unsigned char *storectx = loaderctx;
/* just one key for now in the fake_rsa store */
return *storectx != 0;
}
static int fake_rsa_st_close(void *loaderctx)
{
OPENSSL_free(loaderctx);
return 1;
}
static const OSSL_DISPATCH fake_rsa_store_funcs[] = {
{ OSSL_FUNC_STORE_OPEN, (void (*)(void))fake_rsa_st_open },
{ OSSL_FUNC_STORE_SETTABLE_CTX_PARAMS,
(void (*)(void))fake_rsa_st_settable_ctx_params },
{ OSSL_FUNC_STORE_SET_CTX_PARAMS, (void (*)(void))fake_rsa_st_set_ctx_params },
{ OSSL_FUNC_STORE_LOAD, (void (*)(void))fake_rsa_st_load },
{ OSSL_FUNC_STORE_EOF, (void (*)(void))fake_rsa_st_eof },
{ OSSL_FUNC_STORE_CLOSE, (void (*)(void))fake_rsa_st_close },
{ 0, NULL },
};
static const OSSL_ALGORITHM fake_rsa_store_algs[] = {
{ "fake_rsa", "provider=fake-rsa", fake_rsa_store_funcs },
{ NULL, NULL, NULL }
};
static const OSSL_ALGORITHM *fake_rsa_query(void *provctx,
int operation_id,
int *no_cache)
{
*no_cache = 0;
switch (operation_id) {
case OSSL_OP_SIGNATURE:
return fake_rsa_sig_algs;
case OSSL_OP_KEYMGMT:
return fake_rsa_keymgmt_algs;
case OSSL_OP_STORE:
return fake_rsa_store_algs;
}
return NULL;
}
/* Functions we provide to the core */
static const OSSL_DISPATCH fake_rsa_method[] = {
{ OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))OSSL_LIB_CTX_free },
{ OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))fake_rsa_query },
{ 0, NULL }
};
static int fake_rsa_provider_init(const OSSL_CORE_HANDLE *handle,
const OSSL_DISPATCH *in,
const OSSL_DISPATCH **out, void **provctx)
{
if (!TEST_ptr(*provctx = OSSL_LIB_CTX_new()))
return 0;
*out = fake_rsa_method;
return 1;
}
OSSL_PROVIDER *fake_rsa_start(OSSL_LIB_CTX *libctx)
{
OSSL_PROVIDER *p;
if (!TEST_true(OSSL_PROVIDER_add_builtin(libctx, "fake-rsa",
fake_rsa_provider_init))
|| !TEST_ptr(p = OSSL_PROVIDER_try_load(libctx, "fake-rsa", 1)))
return NULL;
return p;
}
void fake_rsa_finish(OSSL_PROVIDER *p)
{
OSSL_PROVIDER_unload(p);
}
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