1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
16 use slice::{AsSlice, SlicePrelude};
19 use core::hash::{Hash, Writer};
20 use core::hash::sip::{SipState, hash, hash_with_keys};
22 // Hash just the bytes of the slice, without length prefix
23 struct Bytes<'a>(&'a [u8]);
25 impl<'a, S: Writer> Hash<S> for Bytes<'a> {
26 #[allow(unused_must_use)]
27 fn hash(&self, state: &mut S) {
34 #[allow(unused_must_use)]
36 let vecs : [[u8; 8]; 64] = [
37 [ 0x31, 0x0e, 0x0e, 0xdd, 0x47, 0xdb, 0x6f, 0x72, ],
38 [ 0xfd, 0x67, 0xdc, 0x93, 0xc5, 0x39, 0xf8, 0x74, ],
39 [ 0x5a, 0x4f, 0xa9, 0xd9, 0x09, 0x80, 0x6c, 0x0d, ],
40 [ 0x2d, 0x7e, 0xfb, 0xd7, 0x96, 0x66, 0x67, 0x85, ],
41 [ 0xb7, 0x87, 0x71, 0x27, 0xe0, 0x94, 0x27, 0xcf, ],
42 [ 0x8d, 0xa6, 0x99, 0xcd, 0x64, 0x55, 0x76, 0x18, ],
43 [ 0xce, 0xe3, 0xfe, 0x58, 0x6e, 0x46, 0xc9, 0xcb, ],
44 [ 0x37, 0xd1, 0x01, 0x8b, 0xf5, 0x00, 0x02, 0xab, ],
45 [ 0x62, 0x24, 0x93, 0x9a, 0x79, 0xf5, 0xf5, 0x93, ],
46 [ 0xb0, 0xe4, 0xa9, 0x0b, 0xdf, 0x82, 0x00, 0x9e, ],
47 [ 0xf3, 0xb9, 0xdd, 0x94, 0xc5, 0xbb, 0x5d, 0x7a, ],
48 [ 0xa7, 0xad, 0x6b, 0x22, 0x46, 0x2f, 0xb3, 0xf4, ],
49 [ 0xfb, 0xe5, 0x0e, 0x86, 0xbc, 0x8f, 0x1e, 0x75, ],
50 [ 0x90, 0x3d, 0x84, 0xc0, 0x27, 0x56, 0xea, 0x14, ],
51 [ 0xee, 0xf2, 0x7a, 0x8e, 0x90, 0xca, 0x23, 0xf7, ],
52 [ 0xe5, 0x45, 0xbe, 0x49, 0x61, 0xca, 0x29, 0xa1, ],
53 [ 0xdb, 0x9b, 0xc2, 0x57, 0x7f, 0xcc, 0x2a, 0x3f, ],
54 [ 0x94, 0x47, 0xbe, 0x2c, 0xf5, 0xe9, 0x9a, 0x69, ],
55 [ 0x9c, 0xd3, 0x8d, 0x96, 0xf0, 0xb3, 0xc1, 0x4b, ],
56 [ 0xbd, 0x61, 0x79, 0xa7, 0x1d, 0xc9, 0x6d, 0xbb, ],
57 [ 0x98, 0xee, 0xa2, 0x1a, 0xf2, 0x5c, 0xd6, 0xbe, ],
58 [ 0xc7, 0x67, 0x3b, 0x2e, 0xb0, 0xcb, 0xf2, 0xd0, ],
59 [ 0x88, 0x3e, 0xa3, 0xe3, 0x95, 0x67, 0x53, 0x93, ],
60 [ 0xc8, 0xce, 0x5c, 0xcd, 0x8c, 0x03, 0x0c, 0xa8, ],
61 [ 0x94, 0xaf, 0x49, 0xf6, 0xc6, 0x50, 0xad, 0xb8, ],
62 [ 0xea, 0xb8, 0x85, 0x8a, 0xde, 0x92, 0xe1, 0xbc, ],
63 [ 0xf3, 0x15, 0xbb, 0x5b, 0xb8, 0x35, 0xd8, 0x17, ],
64 [ 0xad, 0xcf, 0x6b, 0x07, 0x63, 0x61, 0x2e, 0x2f, ],
65 [ 0xa5, 0xc9, 0x1d, 0xa7, 0xac, 0xaa, 0x4d, 0xde, ],
66 [ 0x71, 0x65, 0x95, 0x87, 0x66, 0x50, 0xa2, 0xa6, ],
67 [ 0x28, 0xef, 0x49, 0x5c, 0x53, 0xa3, 0x87, 0xad, ],
68 [ 0x42, 0xc3, 0x41, 0xd8, 0xfa, 0x92, 0xd8, 0x32, ],
69 [ 0xce, 0x7c, 0xf2, 0x72, 0x2f, 0x51, 0x27, 0x71, ],
70 [ 0xe3, 0x78, 0x59, 0xf9, 0x46, 0x23, 0xf3, 0xa7, ],
71 [ 0x38, 0x12, 0x05, 0xbb, 0x1a, 0xb0, 0xe0, 0x12, ],
72 [ 0xae, 0x97, 0xa1, 0x0f, 0xd4, 0x34, 0xe0, 0x15, ],
73 [ 0xb4, 0xa3, 0x15, 0x08, 0xbe, 0xff, 0x4d, 0x31, ],
74 [ 0x81, 0x39, 0x62, 0x29, 0xf0, 0x90, 0x79, 0x02, ],
75 [ 0x4d, 0x0c, 0xf4, 0x9e, 0xe5, 0xd4, 0xdc, 0xca, ],
76 [ 0x5c, 0x73, 0x33, 0x6a, 0x76, 0xd8, 0xbf, 0x9a, ],
77 [ 0xd0, 0xa7, 0x04, 0x53, 0x6b, 0xa9, 0x3e, 0x0e, ],
78 [ 0x92, 0x59, 0x58, 0xfc, 0xd6, 0x42, 0x0c, 0xad, ],
79 [ 0xa9, 0x15, 0xc2, 0x9b, 0xc8, 0x06, 0x73, 0x18, ],
80 [ 0x95, 0x2b, 0x79, 0xf3, 0xbc, 0x0a, 0xa6, 0xd4, ],
81 [ 0xf2, 0x1d, 0xf2, 0xe4, 0x1d, 0x45, 0x35, 0xf9, ],
82 [ 0x87, 0x57, 0x75, 0x19, 0x04, 0x8f, 0x53, 0xa9, ],
83 [ 0x10, 0xa5, 0x6c, 0xf5, 0xdf, 0xcd, 0x9a, 0xdb, ],
84 [ 0xeb, 0x75, 0x09, 0x5c, 0xcd, 0x98, 0x6c, 0xd0, ],
85 [ 0x51, 0xa9, 0xcb, 0x9e, 0xcb, 0xa3, 0x12, 0xe6, ],
86 [ 0x96, 0xaf, 0xad, 0xfc, 0x2c, 0xe6, 0x66, 0xc7, ],
87 [ 0x72, 0xfe, 0x52, 0x97, 0x5a, 0x43, 0x64, 0xee, ],
88 [ 0x5a, 0x16, 0x45, 0xb2, 0x76, 0xd5, 0x92, 0xa1, ],
89 [ 0xb2, 0x74, 0xcb, 0x8e, 0xbf, 0x87, 0x87, 0x0a, ],
90 [ 0x6f, 0x9b, 0xb4, 0x20, 0x3d, 0xe7, 0xb3, 0x81, ],
91 [ 0xea, 0xec, 0xb2, 0xa3, 0x0b, 0x22, 0xa8, 0x7f, ],
92 [ 0x99, 0x24, 0xa4, 0x3c, 0xc1, 0x31, 0x57, 0x24, ],
93 [ 0xbd, 0x83, 0x8d, 0x3a, 0xaf, 0xbf, 0x8d, 0xb7, ],
94 [ 0x0b, 0x1a, 0x2a, 0x32, 0x65, 0xd5, 0x1a, 0xea, ],
95 [ 0x13, 0x50, 0x79, 0xa3, 0x23, 0x1c, 0xe6, 0x60, ],
96 [ 0x93, 0x2b, 0x28, 0x46, 0xe4, 0xd7, 0x06, 0x66, ],
97 [ 0xe1, 0x91, 0x5f, 0x5c, 0xb1, 0xec, 0xa4, 0x6c, ],
98 [ 0xf3, 0x25, 0x96, 0x5c, 0xa1, 0x6d, 0x62, 0x9f, ],
99 [ 0x57, 0x5f, 0xf2, 0x8e, 0x60, 0x38, 0x1b, 0xe5, ],
100 [ 0x72, 0x45, 0x06, 0xeb, 0x4c, 0x32, 0x8a, 0x95, ]
103 let k0 = 0x_07_06_05_04_03_02_01_00;
104 let k1 = 0x_0f_0e_0d_0c_0b_0a_09_08;
105 let mut buf = Vec::new();
107 let mut state_inc = SipState::new_with_keys(k0, k1);
108 let mut state_full = SipState::new_with_keys(k0, k1);
110 fn to_hex_str(r: &[u8; 8]) -> String {
111 let mut s = String::new();
113 s.push_str(format!("{}", fmt::radix(*b, 16)));
118 fn result_bytes(h: u64) -> Vec<u8> {
130 fn result_str(h: u64) -> String {
131 let r = result_bytes(h);
132 let mut s = String::new();
134 s.push_str(format!("{}", fmt::radix(*b, 16)));
140 debug!("siphash test {}: {}", t, buf);
141 let vec = u8to64_le!(vecs[t], 0);
142 let out = hash_with_keys(k0, k1, &Bytes(buf));
143 debug!("got {}, expected {}", out, vec);
144 assert_eq!(vec, out);
147 state_full.write(buf);
148 let f = result_str(state_full.result());
149 let i = result_str(state_inc.result());
150 let v = to_hex_str(&vecs[t]);
151 debug!("{}: ({}) => inc={} full={}", t, v, i, f);
157 state_inc.write(&[t as u8]);
163 #[test] #[cfg(target_arch = "arm")]
164 fn test_hash_uint() {
165 let val = 0xdeadbeef_deadbeef_u64;
166 assert!(hash(&(val as u64)) != hash(&(val as uint)));
167 assert_eq!(hash(&(val as u32)), hash(&(val as uint)));
169 #[test] #[cfg(target_arch = "x86_64")]
170 fn test_hash_uint() {
171 let val = 0xdeadbeef_deadbeef_u64;
172 assert_eq!(hash(&(val as u64)), hash(&(val as uint)));
173 assert!(hash(&(val as u32)) != hash(&(val as uint)));
175 #[test] #[cfg(target_arch = "x86")]
176 fn test_hash_uint() {
177 let val = 0xdeadbeef_deadbeef_u64;
178 assert!(hash(&(val as u64)) != hash(&(val as uint)));
179 assert_eq!(hash(&(val as u32)), hash(&(val as uint)));
183 fn test_hash_idempotent() {
184 let val64 = 0xdeadbeef_deadbeef_u64;
185 assert_eq!(hash(&val64), hash(&val64));
186 let val32 = 0xdeadbeef_u32;
187 assert_eq!(hash(&val32), hash(&val32));
191 fn test_hash_no_bytes_dropped_64() {
192 let val = 0xdeadbeef_deadbeef_u64;
194 assert!(hash(&val) != hash(&zero_byte(val, 0)));
195 assert!(hash(&val) != hash(&zero_byte(val, 1)));
196 assert!(hash(&val) != hash(&zero_byte(val, 2)));
197 assert!(hash(&val) != hash(&zero_byte(val, 3)));
198 assert!(hash(&val) != hash(&zero_byte(val, 4)));
199 assert!(hash(&val) != hash(&zero_byte(val, 5)));
200 assert!(hash(&val) != hash(&zero_byte(val, 6)));
201 assert!(hash(&val) != hash(&zero_byte(val, 7)));
203 fn zero_byte(val: u64, byte: uint) -> u64 {
205 val & !(0xff << (byte * 8))
210 fn test_hash_no_bytes_dropped_32() {
211 let val = 0xdeadbeef_u32;
213 assert!(hash(&val) != hash(&zero_byte(val, 0)));
214 assert!(hash(&val) != hash(&zero_byte(val, 1)));
215 assert!(hash(&val) != hash(&zero_byte(val, 2)));
216 assert!(hash(&val) != hash(&zero_byte(val, 3)));
218 fn zero_byte(val: u32, byte: uint) -> u32 {
220 val & !(0xff << (byte * 8))
225 fn test_hash_no_concat_alias() {
226 let s = ("aa", "bb");
227 let t = ("aabb", "");
228 let u = ("a", "abb");
230 assert!(s != t && t != u);
231 assert!(hash(&s) != hash(&t) && hash(&s) != hash(&u));
233 let v: (&[u8], &[u8], &[u8]) = (&[1], &[0, 0], &[0]);
234 let w: (&[u8], &[u8], &[u8]) = (&[1, 0, 0, 0], &[], &[]);
237 assert!(hash(&v) != hash(&w));
241 fn bench_str_under_8_bytes(b: &mut Bencher) {
244 assert_eq!(hash(&s), 16262950014981195938);
249 fn bench_str_of_8_bytes(b: &mut Bencher) {
252 assert_eq!(hash(&s), 4898293253460910787);
257 fn bench_str_over_8_bytes(b: &mut Bencher) {
258 let s = "foobarbaz0";
260 assert_eq!(hash(&s), 10581415515220175264);
265 fn bench_long_str(b: &mut Bencher) {
266 let s = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor \
267 incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud \
268 exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute \
269 irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla \
270 pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui \
271 officia deserunt mollit anim id est laborum.";
273 assert_eq!(hash(&s), 17717065544121360093);
278 fn bench_u64(b: &mut Bencher) {
279 let u = 16262950014981195938u64;
281 assert_eq!(hash(&u), 5254097107239593357);