| Jason A. Donenfeld | fae9aac | 2017-01-08 13:54:00 +0100 | [diff] [blame] | 1 | /* Test cases for siphash.c |
| 2 | * |
| 3 | * Copyright (C) 2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. |
| 4 | * |
| 5 | * This file is provided under a dual BSD/GPLv2 license. |
| 6 | * |
| 7 | * SipHash: a fast short-input PRF |
| 8 | * https://131002.net/siphash/ |
| 9 | * |
| 10 | * This implementation is specifically for SipHash2-4. |
| 11 | */ |
| 12 | |
| 13 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 14 | |
| 15 | #include <linux/siphash.h> |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/string.h> |
| 18 | #include <linux/errno.h> |
| 19 | #include <linux/module.h> |
| 20 | |
| 21 | /* Test vectors taken from official reference source available at: |
| 22 | * https://131002.net/siphash/siphash24.c |
| 23 | */ |
| 24 | |
| 25 | static const siphash_key_t test_key_siphash = |
| 26 | {{ 0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL }}; |
| 27 | |
| 28 | static const u64 test_vectors_siphash[64] = { |
| 29 | 0x726fdb47dd0e0e31ULL, 0x74f839c593dc67fdULL, 0x0d6c8009d9a94f5aULL, |
| 30 | 0x85676696d7fb7e2dULL, 0xcf2794e0277187b7ULL, 0x18765564cd99a68dULL, |
| 31 | 0xcbc9466e58fee3ceULL, 0xab0200f58b01d137ULL, 0x93f5f5799a932462ULL, |
| 32 | 0x9e0082df0ba9e4b0ULL, 0x7a5dbbc594ddb9f3ULL, 0xf4b32f46226bada7ULL, |
| 33 | 0x751e8fbc860ee5fbULL, 0x14ea5627c0843d90ULL, 0xf723ca908e7af2eeULL, |
| 34 | 0xa129ca6149be45e5ULL, 0x3f2acc7f57c29bdbULL, 0x699ae9f52cbe4794ULL, |
| 35 | 0x4bc1b3f0968dd39cULL, 0xbb6dc91da77961bdULL, 0xbed65cf21aa2ee98ULL, |
| 36 | 0xd0f2cbb02e3b67c7ULL, 0x93536795e3a33e88ULL, 0xa80c038ccd5ccec8ULL, |
| 37 | 0xb8ad50c6f649af94ULL, 0xbce192de8a85b8eaULL, 0x17d835b85bbb15f3ULL, |
| 38 | 0x2f2e6163076bcfadULL, 0xde4daaaca71dc9a5ULL, 0xa6a2506687956571ULL, |
| 39 | 0xad87a3535c49ef28ULL, 0x32d892fad841c342ULL, 0x7127512f72f27cceULL, |
| 40 | 0xa7f32346f95978e3ULL, 0x12e0b01abb051238ULL, 0x15e034d40fa197aeULL, |
| 41 | 0x314dffbe0815a3b4ULL, 0x027990f029623981ULL, 0xcadcd4e59ef40c4dULL, |
| 42 | 0x9abfd8766a33735cULL, 0x0e3ea96b5304a7d0ULL, 0xad0c42d6fc585992ULL, |
| 43 | 0x187306c89bc215a9ULL, 0xd4a60abcf3792b95ULL, 0xf935451de4f21df2ULL, |
| 44 | 0xa9538f0419755787ULL, 0xdb9acddff56ca510ULL, 0xd06c98cd5c0975ebULL, |
| 45 | 0xe612a3cb9ecba951ULL, 0xc766e62cfcadaf96ULL, 0xee64435a9752fe72ULL, |
| 46 | 0xa192d576b245165aULL, 0x0a8787bf8ecb74b2ULL, 0x81b3e73d20b49b6fULL, |
| 47 | 0x7fa8220ba3b2eceaULL, 0x245731c13ca42499ULL, 0xb78dbfaf3a8d83bdULL, |
| 48 | 0xea1ad565322a1a0bULL, 0x60e61c23a3795013ULL, 0x6606d7e446282b93ULL, |
| 49 | 0x6ca4ecb15c5f91e1ULL, 0x9f626da15c9625f3ULL, 0xe51b38608ef25f57ULL, |
| 50 | 0x958a324ceb064572ULL |
| 51 | }; |
| 52 | |
| 53 | static int __init siphash_test_init(void) |
| 54 | { |
| 55 | u8 in[64] __aligned(SIPHASH_ALIGNMENT); |
| 56 | u8 in_unaligned[65] __aligned(SIPHASH_ALIGNMENT); |
| 57 | u8 i; |
| 58 | int ret = 0; |
| 59 | |
| 60 | for (i = 0; i < 64; ++i) { |
| 61 | in[i] = i; |
| 62 | in_unaligned[i + 1] = i; |
| 63 | if (siphash(in, i, &test_key_siphash) != |
| 64 | test_vectors_siphash[i]) { |
| 65 | pr_info("siphash self-test aligned %u: FAIL\n", i + 1); |
| 66 | ret = -EINVAL; |
| 67 | } |
| 68 | if (siphash(in_unaligned + 1, i, &test_key_siphash) != |
| 69 | test_vectors_siphash[i]) { |
| 70 | pr_info("siphash self-test unaligned %u: FAIL\n", i + 1); |
| 71 | ret = -EINVAL; |
| 72 | } |
| 73 | } |
| 74 | if (siphash_1u64(0x0706050403020100ULL, &test_key_siphash) != |
| 75 | test_vectors_siphash[8]) { |
| 76 | pr_info("siphash self-test 1u64: FAIL\n"); |
| 77 | ret = -EINVAL; |
| 78 | } |
| 79 | if (siphash_2u64(0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL, |
| 80 | &test_key_siphash) != test_vectors_siphash[16]) { |
| 81 | pr_info("siphash self-test 2u64: FAIL\n"); |
| 82 | ret = -EINVAL; |
| 83 | } |
| 84 | if (siphash_3u64(0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL, |
| 85 | 0x1716151413121110ULL, &test_key_siphash) != |
| 86 | test_vectors_siphash[24]) { |
| 87 | pr_info("siphash self-test 3u64: FAIL\n"); |
| 88 | ret = -EINVAL; |
| 89 | } |
| 90 | if (siphash_4u64(0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL, |
| 91 | 0x1716151413121110ULL, 0x1f1e1d1c1b1a1918ULL, |
| 92 | &test_key_siphash) != test_vectors_siphash[32]) { |
| 93 | pr_info("siphash self-test 4u64: FAIL\n"); |
| 94 | ret = -EINVAL; |
| 95 | } |
| 96 | if (siphash_1u32(0x03020100U, &test_key_siphash) != |
| 97 | test_vectors_siphash[4]) { |
| 98 | pr_info("siphash self-test 1u32: FAIL\n"); |
| 99 | ret = -EINVAL; |
| 100 | } |
| 101 | if (siphash_2u32(0x03020100U, 0x07060504U, &test_key_siphash) != |
| 102 | test_vectors_siphash[8]) { |
| 103 | pr_info("siphash self-test 2u32: FAIL\n"); |
| 104 | ret = -EINVAL; |
| 105 | } |
| 106 | if (siphash_3u32(0x03020100U, 0x07060504U, |
| 107 | 0x0b0a0908U, &test_key_siphash) != |
| 108 | test_vectors_siphash[12]) { |
| 109 | pr_info("siphash self-test 3u32: FAIL\n"); |
| 110 | ret = -EINVAL; |
| 111 | } |
| 112 | if (siphash_4u32(0x03020100U, 0x07060504U, |
| 113 | 0x0b0a0908U, 0x0f0e0d0cU, &test_key_siphash) != |
| 114 | test_vectors_siphash[16]) { |
| 115 | pr_info("siphash self-test 4u32: FAIL\n"); |
| 116 | ret = -EINVAL; |
| 117 | } |
| 118 | if (!ret) |
| 119 | pr_info("self-tests: pass\n"); |
| 120 | return ret; |
| 121 | } |
| 122 | |
| 123 | static void __exit siphash_test_exit(void) |
| 124 | { |
| 125 | } |
| 126 | |
| 127 | module_init(siphash_test_init); |
| 128 | module_exit(siphash_test_exit); |
| 129 | |
| 130 | MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>"); |
| 131 | MODULE_LICENSE("Dual BSD/GPL"); |