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+/* Copyright (c) 2001-2004, Roger Dingledine.
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+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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+ * Copyright (c) 2007-2017, The Tor Project, Inc. */
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+/* See LICENSE for licensing information */
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+
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+#include "orconfig.h"
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+
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+#define CRYPTO_OPE_PRIVATE
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+
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+#include "lib/crypt_ops/crypto_ope.h"
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+#include "common/util_format.h"
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+#include "test/test.h"
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+
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+static void
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+test_crypto_ope_consistency(void *arg)
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+{
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+ (void)arg;
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+
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+ crypto_ope_t *ope = NULL;
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+ crypto_cipher_t *aes = NULL;
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+ const int TEST_VALS[] = { 5, 500, 1023, 1024, 1025, 2046, 2047, 2048, 2049,
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+ 10000, OPE_INPUT_MAX };
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+ unsigned i;
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+ const uint8_t key[32] = "A fixed key, chosen arbitrarily.";
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+
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+ ope = crypto_ope_new(key);
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+ tt_assert(ope);
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+
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+ uint64_t last_val = 0;
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+ for (i = 0; i < ARRAY_LENGTH(TEST_VALS); ++i) {
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+ aes = ope_get_cipher(ope, 0);
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+ int val = TEST_VALS[i];
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+ uint64_t v1 = crypto_ope_encrypt(ope, val);
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+ uint64_t v2 = sum_values_from_cipher(aes, val);
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+ tt_u64_op(v1, OP_EQ, v2);
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+ tt_u64_op(v2, OP_GT, last_val);
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+ last_val = v2;
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+ crypto_cipher_free(aes);
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+ }
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+
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+ done:
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+ crypto_cipher_free(aes);
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+ crypto_ope_free(ope);
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+}
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+
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+static void
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+test_crypto_ope_oob(void *arg)
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+{
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+ (void)arg;
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+
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+ crypto_ope_t *ope = NULL;
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+ const uint8_t key[32] = "A fixed key, chosen arbitrarily.";
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+ ope = crypto_ope_new(key);
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+
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+ tt_u64_op(UINT64_MAX, OP_EQ, crypto_ope_encrypt(ope,INT_MIN));
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+ tt_u64_op(UINT64_MAX, OP_EQ, crypto_ope_encrypt(ope,-100));
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+ tt_u64_op(UINT64_MAX, OP_EQ, crypto_ope_encrypt(ope,0));
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+ tt_u64_op(UINT64_MAX, OP_NE, crypto_ope_encrypt(ope,1));
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+ tt_u64_op(UINT64_MAX, OP_NE, crypto_ope_encrypt(ope,7000));
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+ tt_u64_op(UINT64_MAX, OP_NE, crypto_ope_encrypt(ope,OPE_INPUT_MAX));
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+ tt_u64_op(UINT64_MAX, OP_EQ, crypto_ope_encrypt(ope,OPE_INPUT_MAX+1));
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+ tt_u64_op(UINT64_MAX, OP_EQ, crypto_ope_encrypt(ope,INT_MAX));
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+ done:
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+ crypto_ope_free(ope);
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+}
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+
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+static const char OPE_TEST_KEY[] =
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+ "19e05891d55232c08c2cad91d612fdb9cbd6691949a0742434a76c80bc6992fe";
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+
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+/* generated by a separate python implementation. */
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+static const struct {
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+ int v;
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+ uint64_t r;
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+} OPE_TEST_VECTORS[] = {
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+ { 121132, UINT64_C(3971694514) },
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+ { 82283, UINT64_C(2695743564) },
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+ { 72661, UINT64_C(2381548866) },
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+ { 72941, UINT64_C(2390408421) },
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+ { 123122, UINT64_C(4036781069) },
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+ { 12154, UINT64_C(402067100) },
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+ { 121574, UINT64_C(3986197593) },
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+ { 11391, UINT64_C(376696838) },
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+ { 65845, UINT64_C(2161801517) },
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+ { 86301, UINT64_C(2828270975) },
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+ { 61284, UINT64_C(2013616892) },
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+ { 70505, UINT64_C(2313368870) },
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+ { 30438, UINT64_C(1001394664) },
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+ { 60150, UINT64_C(1977329668) },
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+ { 114800, UINT64_C(3764946628) },
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+ { 109403, UINT64_C(3585352477) },
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+ { 21893, UINT64_C(721388468) },
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+ { 123569, UINT64_C(4051780471) },
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+ { 95617, UINT64_C(3134921876) },
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+ { 48561, UINT64_C(1597596985) },
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+ { 53334, UINT64_C(1753691710) },
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+ { 92746, UINT64_C(3040874493) },
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+ { 7110, UINT64_C(234966492) },
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+ { 9612, UINT64_C(318326551) },
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+ { 106958, UINT64_C(3506124249) },
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+ { 46889, UINT64_C(1542219146) },
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+ { 87790, UINT64_C(2877361609) },
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+ { 68878, UINT64_C(2260369112) },
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+ { 47917, UINT64_C(1576681737) },
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+ { 121128, UINT64_C(3971553290) },
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+ { 108602, UINT64_C(3559176081) },
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+ { 28217, UINT64_C(929692460) },
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+ { 69498, UINT64_C(2280554161) },
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+ { 63870, UINT64_C(2098322675) },
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+ { 57542, UINT64_C(1891698992) },
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+ { 122148, UINT64_C(4004515805) },
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+ { 46254, UINT64_C(1521227949) },
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+ { 42850, UINT64_C(1408996941) },
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+ { 92661, UINT64_C(3037901517) },
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+ { 57720, UINT64_C(1897369989) },
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+};
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+
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+static void
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+test_crypto_ope_vectors(void *arg)
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+{
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+ (void)arg;
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+ uint8_t key[32];
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+ crypto_ope_t *ope = NULL, *ope2 = NULL;
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+
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+ base16_decode((char*)key, 32, OPE_TEST_KEY, strlen(OPE_TEST_KEY));
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+
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+ ope = crypto_ope_new(key);
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+ key[8] += 1;
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+ ope2 = crypto_ope_new(key);
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+ unsigned i;
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+ for (i = 0; i < ARRAY_LENGTH(OPE_TEST_VECTORS); ++i) {
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+ int val = OPE_TEST_VECTORS[i].v;
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+ uint64_t res = OPE_TEST_VECTORS[i].r;
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+
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+ tt_u64_op(crypto_ope_encrypt(ope, val), OP_EQ, res);
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+ tt_u64_op(crypto_ope_encrypt(ope2, val), OP_NE, res);
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+ }
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+ done:
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+ crypto_ope_free(ope);
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+ crypto_ope_free(ope2);
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+}
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+
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+struct testcase_t crypto_ope_tests[] = {
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+ { "consistency", test_crypto_ope_consistency, 0, NULL, NULL },
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+ { "oob", test_crypto_ope_oob, 0, NULL, NULL },
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+ { "vectors", test_crypto_ope_vectors, 0, NULL, NULL },
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+ END_OF_TESTCASES
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+};
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+
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