+++ /dev/null
-/*
- * Copyright (C) 2013 Andreas Steffen
- * HSR Hochschule fuer Technik Rapperswil
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- */
-
-#include "ntru_drbg.h"
-
-#include <utils/debug.h>
-#include <utils/test.h>
-
-#define MAX_STRENGTH_BITS 256
-#define MAX_DRBG_REQUESTS 0xfffffffe
-
-typedef struct private_ntru_drbg_t private_ntru_drbg_t;
-
-/**
- * Private data of an ntru_drbg_t object.
- */
-struct private_ntru_drbg_t {
- /**
- * Public ntru_drbg_t interface.
- */
- ntru_drbg_t public;
-
- /**
- * Security strength in bits of the DRBG
- */
- uint32_t strength;
-
- /**
- * Number of requests for pseudorandom bits
- */
- uint32_t reseed_counter;
-
- /**
- * Maximum number of requests for pseudorandom bits
- */
- uint32_t max_requests;
-
- /**
- * True entropy source
- */
- rng_t *entropy;
-
- /**
- * HMAC-SHA256
- */
- signer_t *hmac;
-
- /**
- * Internal state of HMAC-SHA256: key
- */
- chunk_t key;
-
- /**
- * Internal state of HMAC-SHA256: value
- */
- chunk_t value;
-
- /**
- * reference count
- */
- refcount_t ref;
-};
-
-/**
- * Update the internal state of the HMAC_DRBG
- */
-static bool update(private_ntru_drbg_t *this, chunk_t data)
-{
- chunk_t ch_00 = chunk_from_chars(0x00);
- chunk_t ch_01 = chunk_from_chars(0x01);
-
- if (!this->hmac->set_key(this->hmac, this->key) ||
- !this->hmac->get_signature(this->hmac, this->value, NULL) ||
- !this->hmac->get_signature(this->hmac, ch_00, NULL) ||
- !this->hmac->get_signature(this->hmac, data, this->key.ptr) ||
- !this->hmac->set_key(this->hmac, this->key) ||
- !this->hmac->get_signature(this->hmac, this->value,
- this->value.ptr))
- {
- return FALSE;
- }
-
- if (data.len > 0)
- {
- if (!this->hmac->set_key(this->hmac, this->key) ||
- !this->hmac->get_signature(this->hmac, this->value, NULL) ||
- !this->hmac->get_signature(this->hmac, ch_01, NULL) ||
- !this->hmac->get_signature(this->hmac, data, this->key.ptr) ||
- !this->hmac->set_key(this->hmac, this->key) ||
- !this->hmac->get_signature(this->hmac, this->value,
- this->value.ptr))
- {
- return FALSE;
- }
- }
- DBG4(DBG_LIB, "HMAC_DRBG V: %B", &this->value);
- DBG4(DBG_LIB, "HMAC_DRBG K: %B", &this->key);
-
- return TRUE;
-}
-
-METHOD(ntru_drbg_t, get_strength, uint32_t,
- private_ntru_drbg_t *this)
-{
- return this->strength;
-}
-
-METHOD(ntru_drbg_t, reseed, bool,
- private_ntru_drbg_t *this)
-{
- chunk_t seed;
-
- seed = chunk_alloc(this->strength / BITS_PER_BYTE);
- DBG2(DBG_LIB, "DRBG requests %u bytes of entropy", seed.len);
-
- if (!this->entropy->get_bytes(this->entropy, seed.len, seed.ptr))
- {
- chunk_free(&seed);
- return FALSE;
- }
- if (!update(this, seed))
- {
- chunk_free(&seed);
- return FALSE;
- }
- chunk_clear(&seed);
- this->reseed_counter = 1;
-
- return TRUE;
-}
-
-METHOD(ntru_drbg_t, generate, bool,
- private_ntru_drbg_t *this, uint32_t strength, uint32_t len, uint8_t *out)
-{
- size_t delta;
- chunk_t output;
-
- DBG2(DBG_LIB, "DRBG generates %u pseudorandom bytes", len);
- if (!out || len == 0)
- {
- return FALSE;
- }
- output = chunk_create(out, len);
-
- if (this->reseed_counter > this->max_requests)
- {
- if (!reseed(this))
- {
- return FALSE;
- }
- }
- while (len)
- {
- if (!this->hmac->get_signature(this->hmac, this->value,
- this->value.ptr))
- {
- return FALSE;
- }
- delta = min(len, this->value.len);
- memcpy(out, this->value.ptr, delta);
- len -= delta;
- out += delta;
- }
- DBG4(DBG_LIB, "HMAC_DRBG Out: %B", &output);
-
- if (!update(this, chunk_empty))
- {
- return FALSE;
- }
- this->reseed_counter++;
-
- return TRUE;
-}
-
-METHOD(ntru_drbg_t, get_ref, ntru_drbg_t*,
- private_ntru_drbg_t *this)
-{
- ref_get(&this->ref);
- return &this->public;
-}
-
-METHOD(ntru_drbg_t, destroy, void,
- private_ntru_drbg_t *this)
-{
- if (ref_put(&this->ref))
- {
- this->hmac->destroy(this->hmac);
- chunk_clear(&this->key);
- chunk_clear(&this->value);
- free(this);
- }
-}
-
-/*
- * Described in header.
- */
-ntru_drbg_t *ntru_drbg_create(uint32_t strength, chunk_t pers_str,
- rng_t *entropy)
-{
- private_ntru_drbg_t *this;
- chunk_t seed;
- signer_t *hmac;
- size_t entropy_len;
- uint32_t max_requests;
-
- if (strength > MAX_STRENGTH_BITS)
- {
- return NULL;
- }
- if (strength <= 112)
- {
- strength = 112;
- }
- else if (strength <= 128)
- {
- strength = 128;
- }
- else if (strength <= 192)
- {
- strength = 192;
- }
- else
- {
- strength = 256;
- }
-
- hmac = lib->crypto->create_signer(lib->crypto, AUTH_HMAC_SHA2_256_256);
- if (!hmac)
- {
- DBG1(DBG_LIB, "could not instantiate HMAC-SHA256");
- return NULL;
- }
-
- max_requests = lib->settings->get_int(lib->settings,
- "%s.plugins.ntru.max_drbg_requests",
- MAX_DRBG_REQUESTS, lib->ns);
-
- INIT(this,
- .public = {
- .get_strength = _get_strength,
- .reseed = _reseed,
- .generate = _generate,
- .get_ref = _get_ref,
- .destroy = _destroy,
- },
- .strength = strength,
- .entropy = entropy,
- .hmac = hmac,
- .key = chunk_alloc(hmac->get_key_size(hmac)),
- .value = chunk_alloc(hmac->get_block_size(hmac)),
- .max_requests = max_requests,
- .reseed_counter = 1,
- .ref = 1,
- );
-
- memset(this->key.ptr, 0x00, this->key.len);
- memset(this->value.ptr, 0x01, this->value.len);
-
- entropy_len = (strength + strength/2) / BITS_PER_BYTE;
- seed = chunk_alloc(entropy_len + pers_str.len);
- DBG2(DBG_LIB, "DRBG requests %u bytes of entropy", entropy_len);
-
- if (!this->entropy->get_bytes(this->entropy, entropy_len, seed.ptr))
- {
- chunk_free(&seed);
- destroy(this);
- return NULL;
- }
- memcpy(seed.ptr + entropy_len, pers_str.ptr, pers_str.len);
- DBG4(DBG_LIB, "seed: %B", &seed);
-
- if (!update(this, seed))
- {
- chunk_free(&seed);
- destroy(this);
- return NULL;
- }
- chunk_clear(&seed);
-
- return &this->public;
-}
-
-EXPORT_FUNCTION_FOR_TESTS(ntru, ntru_drbg_create);
#include "test_suite.h"
-#include <tests/utils/test_rng.h>
#include <utils/test.h>
#include <crypto/xofs/xof.h>
-#include <plugins/ntru/ntru_drbg.h>
+#include <crypto/drbgs/drbg.h>
+#include <crypto/rngs/rng_tester.h>
#include <plugins/ntru/ntru_trits.h>
#include <plugins/ntru/ntru_poly.h>
#include <plugins/ntru/ntru_param_set.h>
#include <plugins/ntru/ntru_private_key.h>
-IMPORT_FUNCTION_FOR_TESTS(ntru, ntru_drbg_create, ntru_drbg_t*,
- uint32_t strength, chunk_t pers_str, rng_t *entropy)
-
IMPORT_FUNCTION_FOR_TESTS(ntru, ntru_trits_create, ntru_trits_t*,
size_t len, ext_out_function_t alg, chunk_t seed)
ntru_param_set_id_t id)
IMPORT_FUNCTION_FOR_TESTS(ntru, ntru_private_key_create, ntru_private_key_t*,
- ntru_drbg_t *drbg, ntru_param_set_t *params)
+ drbg_t *drbg, ntru_param_set_t *params)
IMPORT_FUNCTION_FOR_TESTS(ntru, ntru_private_key_create_from_data, ntru_private_key_t*,
- ntru_drbg_t *drbg, chunk_t data)
+ drbg_t *drbg, chunk_t data)
IMPORT_FUNCTION_FOR_TESTS(ntru, ntru_public_key_create_from_data, ntru_public_key_t*,
- ntru_drbg_t *drbg, chunk_t data)
+ drbg_t *drbg, chunk_t data)
/**
* NTRU parameter sets to test
"x9_98_speed", "x9_98_bandwidth", "x9_98_balance", "optimum"
};
-typedef struct {
- uint32_t requested;
- uint32_t standard;
-}strength_t;
-
-strength_t strengths[] = {
- { 80, 112 },
- { 112, 112 },
- { 120, 128 },
- { 128, 128 },
- { 150, 192 },
- { 192, 192 },
- { 200, 256 },
- { 256, 256 },
- { 512, 0 }
-};
-
-START_TEST(test_ntru_drbg_strength)
-{
- ntru_drbg_t *drbg;
- rng_t *entropy;
-
- entropy = lib->crypto->create_rng(lib->crypto, RNG_STRONG);
- ck_assert(entropy != NULL);
-
- drbg = TEST_FUNCTION(ntru, ntru_drbg_create, strengths[_i].requested,
- chunk_empty, entropy);
- if (strengths[_i].standard)
- {
- ck_assert(drbg != NULL);
- ck_assert(drbg->get_strength(drbg) == strengths[_i].standard);
- drbg->destroy(drbg);
- }
- else
- {
- ck_assert(drbg == NULL);
- }
- entropy->destroy(entropy);
-}
-END_TEST
-
-typedef struct {
- chunk_t pers_str;
- chunk_t entropy;
- chunk_t out;
-} drbg_test_t;
-
-/**
- * NIST SP 800-90A Deterministic Random Generator Validation System (DRBGVS)
- */
-drbg_test_t drbg_tests[] = {
- /* SHA-256 test case 1 - count 0 */
- { { NULL, 0 },
- chunk_from_chars(0x06, 0x03, 0x2c, 0xd5, 0xee, 0xd3, 0x3f, 0x39,
- 0x26, 0x5f, 0x49, 0xec, 0xb1, 0x42, 0xc5, 0x11,
- 0xda, 0x9a, 0xff, 0x2a, 0xf7, 0x12, 0x03, 0xbf,
- 0xfa, 0xf3, 0x4a, 0x9c, 0xa5, 0xbd, 0x9c, 0x0d,
- 0x0e, 0x66, 0xf7, 0x1e, 0xdc, 0x43, 0xe4, 0x2a,
- 0x45, 0xad, 0x3c, 0x6f, 0xc6, 0xcd, 0xc4, 0xdf,
- 0x01, 0x92, 0x0a, 0x4e, 0x66, 0x9e, 0xd3, 0xa8,
- 0x5a, 0xe8, 0xa3, 0x3b, 0x35, 0xa7, 0x4a, 0xd7,
- 0xfb, 0x2a, 0x6b, 0xb4, 0xcf, 0x39, 0x5c, 0xe0,
- 0x03, 0x34, 0xa9, 0xc9, 0xa5, 0xa5, 0xd5, 0x52),
- chunk_from_chars(0x76, 0xfc, 0x79, 0xfe, 0x9b, 0x50, 0xbe, 0xcc,
- 0xc9, 0x91, 0xa1, 0x1b, 0x56, 0x35, 0x78, 0x3a,
- 0x83, 0x53, 0x6a, 0xdd, 0x03, 0xc1, 0x57, 0xfb,
- 0x30, 0x64, 0x5e, 0x61, 0x1c, 0x28, 0x98, 0xbb,
- 0x2b, 0x1b, 0xc2, 0x15, 0x00, 0x02, 0x09, 0x20,
- 0x8c, 0xd5, 0x06, 0xcb, 0x28, 0xda, 0x2a, 0x51,
- 0xbd, 0xb0, 0x38, 0x26, 0xaa, 0xf2, 0xbd, 0x23,
- 0x35, 0xd5, 0x76, 0xd5, 0x19, 0x16, 0x08, 0x42,
- 0xe7, 0x15, 0x8a, 0xd0, 0x94, 0x9d, 0x1a, 0x9e,
- 0xc3, 0xe6, 0x6e, 0xa1, 0xb1, 0xa0, 0x64, 0xb0,
- 0x05, 0xde, 0x91, 0x4e, 0xac, 0x2e, 0x9d, 0x4f,
- 0x2d, 0x72, 0xa8, 0x61, 0x6a, 0x80, 0x22, 0x54,
- 0x22, 0x91, 0x82, 0x50, 0xff, 0x66, 0xa4, 0x1b,
- 0xd2, 0xf8, 0x64, 0xa6, 0xa3, 0x8c, 0xc5, 0xb6,
- 0x49, 0x9d, 0xc4, 0x3f, 0x7f, 0x2b, 0xd0, 0x9e,
- 0x1e, 0x0f, 0x8f, 0x58, 0x85, 0x93, 0x51, 0x24)
- },
- /* SHA-256 test case 3 - count 0 */
- { chunk_from_chars(0xf2, 0xe5, 0x8f, 0xe6, 0x0a, 0x3a, 0xfc, 0x59,
- 0xda, 0xd3, 0x75, 0x95, 0x41, 0x5f, 0xfd, 0x31,
- 0x8c, 0xcf, 0x69, 0xd6, 0x77, 0x80, 0xf6, 0xfa,
- 0x07, 0x97, 0xdc, 0x9a, 0xa4, 0x3e, 0x14, 0x4c),
- chunk_from_chars(0xfa, 0x0e, 0xe1, 0xfe, 0x39, 0xc7, 0xc3, 0x90,
- 0xaa, 0x94, 0x15, 0x9d, 0x0d, 0xe9, 0x75, 0x64,
- 0x34, 0x2b, 0x59, 0x17, 0x77, 0xf3, 0xe5, 0xf6,
- 0xa4, 0xba, 0x2a, 0xea, 0x34, 0x2e, 0xc8, 0x40,
- 0xdd, 0x08, 0x20, 0x65, 0x5c, 0xb2, 0xff, 0xdb,
- 0x0d, 0xa9, 0xe9, 0x31, 0x0a, 0x67, 0xc9, 0xe5,
- 0xe0, 0x62, 0x9b, 0x6d, 0x79, 0x75, 0xdd, 0xfa,
- 0x96, 0xa3, 0x99, 0x64, 0x87, 0x40, 0xe6, 0x0f,
- 0x1f, 0x95, 0x57, 0xdc, 0x58, 0xb3, 0xd7, 0x41,
- 0x5f, 0x9b, 0xa9, 0xd4, 0xdb, 0xb5, 0x01, 0xf6),
- chunk_from_chars(0xf9, 0x2d, 0x4c, 0xf9, 0x9a, 0x53, 0x5b, 0x20,
- 0x22, 0x2a, 0x52, 0xa6, 0x8d, 0xb0, 0x4c, 0x5a,
- 0xf6, 0xf5, 0xff, 0xc7, 0xb6, 0x6a, 0x47, 0x3a,
- 0x37, 0xa2, 0x56, 0xbd, 0x8d, 0x29, 0x8f, 0x9b,
- 0x4a, 0xa4, 0xaf, 0x7e, 0x8d, 0x18, 0x1e, 0x02,
- 0x36, 0x79, 0x03, 0xf9, 0x3b, 0xdb, 0x74, 0x4c,
- 0x6c, 0x2f, 0x3f, 0x34, 0x72, 0x62, 0x6b, 0x40,
- 0xce, 0x9b, 0xd6, 0xa7, 0x0e, 0x7b, 0x8f, 0x93,
- 0x99, 0x2a, 0x16, 0xa7, 0x6f, 0xab, 0x6b, 0x5f,
- 0x16, 0x25, 0x68, 0xe0, 0x8e, 0xe6, 0xc3, 0xe8,
- 0x04, 0xae, 0xfd, 0x95, 0x2d, 0xdd, 0x3a, 0xcb,
- 0x79, 0x1c, 0x50, 0xf2, 0xad, 0x69, 0xe9, 0xa0,
- 0x40, 0x28, 0xa0, 0x6a, 0x9c, 0x01, 0xd3, 0xa6,
- 0x2a, 0xca, 0x2a, 0xaf, 0x6e, 0xfe, 0x69, 0xed,
- 0x97, 0xa0, 0x16, 0x21, 0x3a, 0x2d, 0xd6, 0x42,
- 0xb4, 0x88, 0x67, 0x64, 0x07, 0x2d, 0x9c, 0xbe)
- },
- /* SHA-256 test case 5 - count 0 */
- { { NULL, 0 },
- chunk_from_chars(0xff, 0x0c, 0xdd, 0x55, 0x5c, 0x60, 0x46, 0x47,
- 0x60, 0xb2, 0x89, 0xb7, 0xbc, 0x1f, 0x81, 0x1a,
- 0x41, 0xff, 0xf7, 0x2d, 0xe5, 0x90, 0x83, 0x85,
- 0x8c, 0x02, 0x0a, 0x10, 0x53, 0xbd, 0xc7, 0x4a,
- 0x7b, 0xc0, 0x99, 0x28, 0x5a, 0xd5, 0x62, 0x19,
- 0x93, 0xb6, 0x39, 0xc4, 0xa9, 0x4c, 0x37, 0x6b,
- 0x14, 0xfc, 0x6c, 0x9b, 0x17, 0x8d, 0xb6, 0x44,
- 0xa8, 0xcd, 0x71, 0x30, 0xa4, 0xcf, 0x05, 0x16,
- 0x78, 0xc8, 0xf4, 0xfa, 0x8f, 0x24, 0xc2, 0x7b,
- 0x0a, 0x53, 0x13, 0x38, 0xa5, 0xce, 0x85, 0x89),
- chunk_from_chars(0x2f, 0x26, 0x20, 0x34, 0x7b, 0xdd, 0xca, 0xa2,
- 0x94, 0x36, 0x85, 0x34, 0x6b, 0xbf, 0x31, 0xc4,
- 0x40, 0x81, 0xf8, 0x66, 0x5f, 0x3d, 0xdb, 0x2b,
- 0x42, 0xae, 0x14, 0x16, 0xa7, 0x4c, 0x4b, 0x77,
- 0xfa, 0xb3, 0xfa, 0x19, 0xae, 0xec, 0xc5, 0x47,
- 0xe7, 0x6c, 0x8c, 0xbe, 0x6a, 0xd1, 0xf1, 0x00,
- 0xa3, 0xfc, 0x8b, 0x2c, 0xe2, 0xa1, 0xea, 0x3a,
- 0x3d, 0xd7, 0xcf, 0xad, 0x46, 0xc1, 0xb2, 0x78,
- 0x30, 0xb9, 0x40, 0xba, 0x18, 0xd0, 0x9e, 0x9b,
- 0x7f, 0xa9, 0x02, 0xbb, 0x76, 0x06, 0x69, 0xb1,
- 0x73, 0x5c, 0xc7, 0xb7, 0xbd, 0x39, 0x05, 0x2d,
- 0xa7, 0xf2, 0x62, 0x6f, 0xa8, 0x70, 0x00, 0xcf,
- 0xfa, 0xda, 0x41, 0x00, 0x19, 0xd0, 0x53, 0x38,
- 0x6a, 0xd8, 0x08, 0xbd, 0x3c, 0x0c, 0xfc, 0xf5,
- 0x6b, 0x91, 0x87, 0x9e, 0xb8, 0xd3, 0xf9, 0x32,
- 0xee, 0x2d, 0x18, 0x5e, 0x54, 0xf3, 0x1b, 0x74)
- },
- /* SHA-256 test case 7 - count 0 */
- { chunk_from_chars(0x40, 0x93, 0x3f, 0xdc, 0xce, 0x41, 0x59, 0xb0,
- 0x95, 0x51, 0x11, 0xf8, 0x44, 0x47, 0x1b, 0x0d,
- 0xb8, 0x5b, 0x73, 0xbd, 0xd2, 0xb7, 0x8c, 0x46,
- 0x8d, 0xd3, 0x9e, 0x2a, 0x9b, 0x29, 0xae, 0xf2),
- chunk_from_chars(0x28, 0xba, 0x1a, 0x66, 0x16, 0x32, 0xef, 0xc8,
- 0xec, 0xce, 0xd5, 0xf5, 0x1b, 0x79, 0x13, 0x00,
- 0xfb, 0x3b, 0x55, 0xb0, 0x5d, 0x04, 0x17, 0x08,
- 0x63, 0x8d, 0xe4, 0xbe, 0xb7, 0x57, 0xa9, 0xe5,
- 0x76, 0x82, 0x87, 0x96, 0xaf, 0xf0, 0x7f, 0x55,
- 0x79, 0x5c, 0xb5, 0x47, 0x13, 0xc7, 0x7e, 0xd4,
- 0xa5, 0xf5, 0x42, 0xb0, 0x4a, 0xaa, 0x5d, 0xbc,
- 0x93, 0x1e, 0x47, 0x01, 0x9f, 0xeb, 0x38, 0x96,
- 0x26, 0x16, 0xc5, 0x7a, 0xf0, 0x9b, 0x7c, 0x1d,
- 0xf8, 0x3f, 0x2b, 0x86, 0x0f, 0xf7, 0x65, 0x86),
- chunk_from_chars(0x65, 0xe5, 0xaa, 0x47, 0xb3, 0x85, 0xf1, 0xea,
- 0x42, 0xb2, 0x31, 0xb9, 0xfe, 0x74, 0x42, 0x53,
- 0xb8, 0x59, 0x88, 0x59, 0xd7, 0x01, 0x1e, 0x52,
- 0x5f, 0x5a, 0x2a, 0x1a, 0xd3, 0x2a, 0x97, 0x2a,
- 0x85, 0x08, 0x02, 0xc6, 0x0a, 0x2b, 0xe1, 0x9b,
- 0xe2, 0x70, 0x06, 0x3a, 0x3c, 0xfb, 0xea, 0xae,
- 0x95, 0x4f, 0x10, 0xb1, 0x22, 0x35, 0x2d, 0xe6,
- 0xa0, 0x8a, 0xc4, 0x10, 0xe0, 0x99, 0x16, 0x53,
- 0xaa, 0xb2, 0x71, 0xb3, 0x60, 0xfe, 0x91, 0x91,
- 0xcf, 0x5a, 0xdd, 0xcc, 0xcc, 0xed, 0x8c, 0x4a,
- 0xcf, 0xb6, 0x14, 0x57, 0x04, 0x99, 0x92, 0x98,
- 0x8f, 0xd7, 0xa9, 0xac, 0xca, 0x1f, 0x1b, 0xca,
- 0x35, 0xf1, 0x47, 0x58, 0x13, 0x69, 0x4a, 0x39,
- 0x98, 0x8e, 0x5f, 0xac, 0x9f, 0x4a, 0xc0, 0x57,
- 0x22, 0x86, 0xbc, 0x46, 0x25, 0x82, 0xad, 0x0a,
- 0xf7, 0x8a, 0xb3, 0xb8, 0x5e, 0xc1, 0x7a, 0x25)
- }
-};
-
-START_TEST(test_ntru_drbg)
-{
- ntru_drbg_t *drbg;
- rng_t *entropy;
- chunk_t out;
-
- out = chunk_alloc(128);
- entropy = test_rng_create(drbg_tests[_i].entropy);
- drbg = TEST_FUNCTION(ntru, ntru_drbg_create, 256, drbg_tests[_i].pers_str,
- entropy);
- ck_assert(drbg != NULL);
- ck_assert(drbg->reseed(drbg));
- ck_assert(drbg->generate(drbg, 256, 128, out.ptr));
- ck_assert(drbg->generate(drbg, 256, 128, out.ptr));
- ck_assert(chunk_equals(out, drbg_tests[_i].out));
- drbg->destroy(drbg);
- entropy->destroy(entropy);
- chunk_free(&out);
-}
-END_TEST
-
-START_TEST(test_ntru_drbg_reseed)
-{
- ntru_drbg_t *drbg;
- rng_t *entropy;
- chunk_t out;
-
- lib->settings->set_int(lib->settings,
- "libstrongswan.plugins.ntru.max_drbg_requests", 2);
- out = chunk_alloc(128);
- entropy = test_rng_create(drbg_tests[0].entropy);
- drbg = TEST_FUNCTION(ntru, ntru_drbg_create, 256, chunk_empty, entropy);
-
- /* bad output parameters */
- ck_assert(!drbg->generate(drbg, 256, 0, out.ptr));
- ck_assert(!drbg->generate(drbg, 256, 128, NULL));
-
- /* no reseeding occurs */
- ck_assert(drbg->generate(drbg, 256, 128, out.ptr));
- ck_assert(drbg->generate(drbg, 256, 128, out.ptr));
-
- /* consuming remaining entropy */
- ck_assert(entropy->get_bytes(entropy, 32, out.ptr));
-
- /* no entropy available for automatic reseeding */
- ck_assert(!drbg->generate(drbg, 256, 128, out.ptr));
- drbg->destroy(drbg);
-
- /* no entropy available for DRBG instantiation */
- drbg = TEST_FUNCTION(ntru, ntru_drbg_create, 256, chunk_empty, entropy);
- ck_assert(drbg == NULL);
- entropy->destroy(entropy);
-
- /* one automatic reseeding occurs */
- entropy = test_rng_create(drbg_tests[0].entropy);
- drbg = TEST_FUNCTION(ntru, ntru_drbg_create, 256, chunk_empty, entropy);
- ck_assert(drbg->generate(drbg, 256, 128, out.ptr));
- ck_assert(drbg->generate(drbg, 256, 128, out.ptr));
- ck_assert(drbg->generate(drbg, 256, 128, out.ptr));
-
- /* no entropy left */
- ck_assert(!entropy->get_bytes(entropy, 32, out.ptr));
-
- drbg->destroy(drbg);
- entropy->destroy(entropy);
- chunk_free(&out);
- lib->settings->set_int(lib->settings,
- "libstrongswan.plugins.ntru.max_drbg_requests", 2000);
-}
-END_TEST
-
typedef struct {
uint8_t c_bits;
uint16_t N;
START_TEST(test_ntru_privkey)
{
rng_t *entropy;
- ntru_drbg_t *drbg;
+ drbg_t *drbg;
ntru_private_key_t *privkey;
ntru_public_key_t *pubkey;
ntru_param_set_t *params;
params = TEST_FUNCTION(ntru, ntru_param_set_get_by_id,
privkey_tests[_i].id);
strength = params->sec_strength_len * BITS_PER_BYTE;
- entropy = test_rng_create(privkey_tests[_i].entropy);
- drbg = TEST_FUNCTION(ntru, ntru_drbg_create, strength,
- chunk_from_str("IKE NTRU-KE"), entropy);
+ entropy = rng_tester_create(privkey_tests[_i].entropy);
+ drbg = lib->crypto->create_drbg(lib->crypto, DRBG_HMAC_SHA256, strength,
+ entropy, chunk_from_str("IKE NTRU-KE"));
ck_assert(drbg != NULL);
privkey = TEST_FUNCTION(ntru, ntru_private_key_create, drbg, params);
s = suite_create("ntru");
- tc = tcase_create("drbg_strength");
- tcase_add_loop_test(tc, test_ntru_drbg_strength, 0, countof(strengths));
- suite_add_tcase(s, tc);
-
- tc = tcase_create("drbg");
- tcase_add_loop_test(tc, test_ntru_drbg, 0, countof(drbg_tests));
- suite_add_tcase(s, tc);
-
- tc = tcase_create("drgb_reseed");
- tcase_add_test(tc, test_ntru_drbg_reseed);
- suite_add_tcase(s, tc);
-
tc = tcase_create("trits");
tcase_add_loop_test(tc, test_ntru_trits, 0, countof(trits_tests));
suite_add_tcase(s, tc);
projects / thirdparty / strongswan.git / commitdiff
