// Copyright 2014 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![allow(deprecated)] use test::{Bencher, black_box}; use core::hash::{Hash, Hasher}; use core::hash::{SipHasher, SipHasher13, SipHasher24}; // Hash just the bytes of the slice, without length prefix struct Bytes<'a>(&'a [u8]); impl<'a> Hash for Bytes<'a> { #[allow(unused_must_use)] fn hash(&self, state: &mut H) { let Bytes(v) = *self; state.write(v); } } macro_rules! u8to64_le { ($buf:expr, $i:expr) => ($buf[0+$i] as u64 | ($buf[1+$i] as u64) << 8 | ($buf[2+$i] as u64) << 16 | ($buf[3+$i] as u64) << 24 | ($buf[4+$i] as u64) << 32 | ($buf[5+$i] as u64) << 40 | ($buf[6+$i] as u64) << 48 | ($buf[7+$i] as u64) << 56); ($buf:expr, $i:expr, $len:expr) => ({ let mut t = 0; let mut out = 0; while t < $len { out |= ($buf[t+$i] as u64) << t*8; t += 1; } out }); } fn hash_with(mut st: H, x: &T) -> u64 { x.hash(&mut st); st.finish() } fn hash(x: &T) -> u64 { hash_with(SipHasher::new(), x) } fn hash_bytes(mut s: H, x: &[u8]) -> u64 { Hasher::write(&mut s, x); s.finish() } #[test] #[allow(unused_must_use)] fn test_siphash_1_3() { let vecs : [[u8; 8]; 64] = [ [ 0xdc, 0xc4, 0x0f, 0x05, 0x58, 0x01, 0xac, 0xab ], [ 0x93, 0xca, 0x57, 0x7d, 0xf3, 0x9b, 0xf4, 0xc9 ], [ 0x4d, 0xd4, 0xc7, 0x4d, 0x02, 0x9b, 0xcb, 0x82 ], [ 0xfb, 0xf7, 0xdd, 0xe7, 0xb8, 0x0a, 0xf8, 0x8b ], [ 0x28, 0x83, 0xd3, 0x88, 0x60, 0x57, 0x75, 0xcf ], [ 0x67, 0x3b, 0x53, 0x49, 0x2f, 0xd5, 0xf9, 0xde ], [ 0xa7, 0x22, 0x9f, 0xc5, 0x50, 0x2b, 0x0d, 0xc5 ], [ 0x40, 0x11, 0xb1, 0x9b, 0x98, 0x7d, 0x92, 0xd3 ], [ 0x8e, 0x9a, 0x29, 0x8d, 0x11, 0x95, 0x90, 0x36 ], [ 0xe4, 0x3d, 0x06, 0x6c, 0xb3, 0x8e, 0xa4, 0x25 ], [ 0x7f, 0x09, 0xff, 0x92, 0xee, 0x85, 0xde, 0x79 ], [ 0x52, 0xc3, 0x4d, 0xf9, 0xc1, 0x18, 0xc1, 0x70 ], [ 0xa2, 0xd9, 0xb4, 0x57, 0xb1, 0x84, 0xa3, 0x78 ], [ 0xa7, 0xff, 0x29, 0x12, 0x0c, 0x76, 0x6f, 0x30 ], [ 0x34, 0x5d, 0xf9, 0xc0, 0x11, 0xa1, 0x5a, 0x60 ], [ 0x56, 0x99, 0x51, 0x2a, 0x6d, 0xd8, 0x20, 0xd3 ], [ 0x66, 0x8b, 0x90, 0x7d, 0x1a, 0xdd, 0x4f, 0xcc ], [ 0x0c, 0xd8, 0xdb, 0x63, 0x90, 0x68, 0xf2, 0x9c ], [ 0x3e, 0xe6, 0x73, 0xb4, 0x9c, 0x38, 0xfc, 0x8f ], [ 0x1c, 0x7d, 0x29, 0x8d, 0xe5, 0x9d, 0x1f, 0xf2 ], [ 0x40, 0xe0, 0xcc, 0xa6, 0x46, 0x2f, 0xdc, 0xc0 ], [ 0x44, 0xf8, 0x45, 0x2b, 0xfe, 0xab, 0x92, 0xb9 ], [ 0x2e, 0x87, 0x20, 0xa3, 0x9b, 0x7b, 0xfe, 0x7f ], [ 0x23, 0xc1, 0xe6, 0xda, 0x7f, 0x0e, 0x5a, 0x52 ], [ 0x8c, 0x9c, 0x34, 0x67, 0xb2, 0xae, 0x64, 0xf4 ], [ 0x79, 0x09, 0x5b, 0x70, 0x28, 0x59, 0xcd, 0x45 ], [ 0xa5, 0x13, 0x99, 0xca, 0xe3, 0x35, 0x3e, 0x3a ], [ 0x35, 0x3b, 0xde, 0x4a, 0x4e, 0xc7, 0x1d, 0xa9 ], [ 0x0d, 0xd0, 0x6c, 0xef, 0x02, 0xed, 0x0b, 0xfb ], [ 0xf4, 0xe1, 0xb1, 0x4a, 0xb4, 0x3c, 0xd9, 0x88 ], [ 0x63, 0xe6, 0xc5, 0x43, 0xd6, 0x11, 0x0f, 0x54 ], [ 0xbc, 0xd1, 0x21, 0x8c, 0x1f, 0xdd, 0x70, 0x23 ], [ 0x0d, 0xb6, 0xa7, 0x16, 0x6c, 0x7b, 0x15, 0x81 ], [ 0xbf, 0xf9, 0x8f, 0x7a, 0xe5, 0xb9, 0x54, 0x4d ], [ 0x3e, 0x75, 0x2a, 0x1f, 0x78, 0x12, 0x9f, 0x75 ], [ 0x91, 0x6b, 0x18, 0xbf, 0xbe, 0xa3, 0xa1, 0xce ], [ 0x06, 0x62, 0xa2, 0xad, 0xd3, 0x08, 0xf5, 0x2c ], [ 0x57, 0x30, 0xc3, 0xa3, 0x2d, 0x1c, 0x10, 0xb6 ], [ 0xa1, 0x36, 0x3a, 0xae, 0x96, 0x74, 0xf4, 0xb3 ], [ 0x92, 0x83, 0x10, 0x7b, 0x54, 0x57, 0x6b, 0x62 ], [ 0x31, 0x15, 0xe4, 0x99, 0x32, 0x36, 0xd2, 0xc1 ], [ 0x44, 0xd9, 0x1a, 0x3f, 0x92, 0xc1, 0x7c, 0x66 ], [ 0x25, 0x88, 0x13, 0xc8, 0xfe, 0x4f, 0x70, 0x65 ], [ 0xa6, 0x49, 0x89, 0xc2, 0xd1, 0x80, 0xf2, 0x24 ], [ 0x6b, 0x87, 0xf8, 0xfa, 0xed, 0x1c, 0xca, 0xc2 ], [ 0x96, 0x21, 0x04, 0x9f, 0xfc, 0x4b, 0x16, 0xc2 ], [ 0x23, 0xd6, 0xb1, 0x68, 0x93, 0x9c, 0x6e, 0xa1 ], [ 0xfd, 0x14, 0x51, 0x8b, 0x9c, 0x16, 0xfb, 0x49 ], [ 0x46, 0x4c, 0x07, 0xdf, 0xf8, 0x43, 0x31, 0x9f ], [ 0xb3, 0x86, 0xcc, 0x12, 0x24, 0xaf, 0xfd, 0xc6 ], [ 0x8f, 0x09, 0x52, 0x0a, 0xd1, 0x49, 0xaf, 0x7e ], [ 0x9a, 0x2f, 0x29, 0x9d, 0x55, 0x13, 0xf3, 0x1c ], [ 0x12, 0x1f, 0xf4, 0xa2, 0xdd, 0x30, 0x4a, 0xc4 ], [ 0xd0, 0x1e, 0xa7, 0x43, 0x89, 0xe9, 0xfa, 0x36 ], [ 0xe6, 0xbc, 0xf0, 0x73, 0x4c, 0xb3, 0x8f, 0x31 ], [ 0x80, 0xe9, 0xa7, 0x70, 0x36, 0xbf, 0x7a, 0xa2 ], [ 0x75, 0x6d, 0x3c, 0x24, 0xdb, 0xc0, 0xbc, 0xb4 ], [ 0x13, 0x15, 0xb7, 0xfd, 0x52, 0xd8, 0xf8, 0x23 ], [ 0x08, 0x8a, 0x7d, 0xa6, 0x4d, 0x5f, 0x03, 0x8f ], [ 0x48, 0xf1, 0xe8, 0xb7, 0xe5, 0xd0, 0x9c, 0xd8 ], [ 0xee, 0x44, 0xa6, 0xf7, 0xbc, 0xe6, 0xf4, 0xf6 ], [ 0xf2, 0x37, 0x18, 0x0f, 0xd8, 0x9a, 0xc5, 0xae ], [ 0xe0, 0x94, 0x66, 0x4b, 0x15, 0xf6, 0xb2, 0xc3 ], [ 0xa8, 0xb3, 0xbb, 0xb7, 0x62, 0x90, 0x19, 0x9d ] ]; let k0 = 0x_07_06_05_04_03_02_01_00; let k1 = 0x_0f_0e_0d_0c_0b_0a_09_08; let mut buf = Vec::new(); let mut t = 0; let mut state_inc = SipHasher13::new_with_keys(k0, k1); while t < 64 { let vec = u8to64_le!(vecs[t], 0); let out = hash_with(SipHasher13::new_with_keys(k0, k1), &Bytes(&buf)); assert_eq!(vec, out); let full = hash_with(SipHasher13::new_with_keys(k0, k1), &Bytes(&buf)); let i = state_inc.finish(); assert_eq!(full, i); assert_eq!(full, vec); buf.push(t as u8); Hasher::write(&mut state_inc, &[t as u8]); t += 1; } } #[test] #[allow(unused_must_use)] fn test_siphash_2_4() { let vecs : [[u8; 8]; 64] = [ [ 0x31, 0x0e, 0x0e, 0xdd, 0x47, 0xdb, 0x6f, 0x72, ], [ 0xfd, 0x67, 0xdc, 0x93, 0xc5, 0x39, 0xf8, 0x74, ], [ 0x5a, 0x4f, 0xa9, 0xd9, 0x09, 0x80, 0x6c, 0x0d, ], [ 0x2d, 0x7e, 0xfb, 0xd7, 0x96, 0x66, 0x67, 0x85, ], [ 0xb7, 0x87, 0x71, 0x27, 0xe0, 0x94, 0x27, 0xcf, ], [ 0x8d, 0xa6, 0x99, 0xcd, 0x64, 0x55, 0x76, 0x18, ], [ 0xce, 0xe3, 0xfe, 0x58, 0x6e, 0x46, 0xc9, 0xcb, ], [ 0x37, 0xd1, 0x01, 0x8b, 0xf5, 0x00, 0x02, 0xab, ], [ 0x62, 0x24, 0x93, 0x9a, 0x79, 0xf5, 0xf5, 0x93, ], [ 0xb0, 0xe4, 0xa9, 0x0b, 0xdf, 0x82, 0x00, 0x9e, ], [ 0xf3, 0xb9, 0xdd, 0x94, 0xc5, 0xbb, 0x5d, 0x7a, ], [ 0xa7, 0xad, 0x6b, 0x22, 0x46, 0x2f, 0xb3, 0xf4, ], [ 0xfb, 0xe5, 0x0e, 0x86, 0xbc, 0x8f, 0x1e, 0x75, ], [ 0x90, 0x3d, 0x84, 0xc0, 0x27, 0x56, 0xea, 0x14, ], [ 0xee, 0xf2, 0x7a, 0x8e, 0x90, 0xca, 0x23, 0xf7, ], [ 0xe5, 0x45, 0xbe, 0x49, 0x61, 0xca, 0x29, 0xa1, ], [ 0xdb, 0x9b, 0xc2, 0x57, 0x7f, 0xcc, 0x2a, 0x3f, ], [ 0x94, 0x47, 0xbe, 0x2c, 0xf5, 0xe9, 0x9a, 0x69, ], [ 0x9c, 0xd3, 0x8d, 0x96, 0xf0, 0xb3, 0xc1, 0x4b, ], [ 0xbd, 0x61, 0x79, 0xa7, 0x1d, 0xc9, 0x6d, 0xbb, ], [ 0x98, 0xee, 0xa2, 0x1a, 0xf2, 0x5c, 0xd6, 0xbe, ], [ 0xc7, 0x67, 0x3b, 0x2e, 0xb0, 0xcb, 0xf2, 0xd0, ], [ 0x88, 0x3e, 0xa3, 0xe3, 0x95, 0x67, 0x53, 0x93, ], [ 0xc8, 0xce, 0x5c, 0xcd, 0x8c, 0x03, 0x0c, 0xa8, ], [ 0x94, 0xaf, 0x49, 0xf6, 0xc6, 0x50, 0xad, 0xb8, ], [ 0xea, 0xb8, 0x85, 0x8a, 0xde, 0x92, 0xe1, 0xbc, ], [ 0xf3, 0x15, 0xbb, 0x5b, 0xb8, 0x35, 0xd8, 0x17, ], [ 0xad, 0xcf, 0x6b, 0x07, 0x63, 0x61, 0x2e, 0x2f, ], [ 0xa5, 0xc9, 0x1d, 0xa7, 0xac, 0xaa, 0x4d, 0xde, ], [ 0x71, 0x65, 0x95, 0x87, 0x66, 0x50, 0xa2, 0xa6, ], [ 0x28, 0xef, 0x49, 0x5c, 0x53, 0xa3, 0x87, 0xad, ], [ 0x42, 0xc3, 0x41, 0xd8, 0xfa, 0x92, 0xd8, 0x32, ], [ 0xce, 0x7c, 0xf2, 0x72, 0x2f, 0x51, 0x27, 0x71, ], [ 0xe3, 0x78, 0x59, 0xf9, 0x46, 0x23, 0xf3, 0xa7, ], [ 0x38, 0x12, 0x05, 0xbb, 0x1a, 0xb0, 0xe0, 0x12, ], [ 0xae, 0x97, 0xa1, 0x0f, 0xd4, 0x34, 0xe0, 0x15, ], [ 0xb4, 0xa3, 0x15, 0x08, 0xbe, 0xff, 0x4d, 0x31, ], [ 0x81, 0x39, 0x62, 0x29, 0xf0, 0x90, 0x79, 0x02, ], [ 0x4d, 0x0c, 0xf4, 0x9e, 0xe5, 0xd4, 0xdc, 0xca, ], [ 0x5c, 0x73, 0x33, 0x6a, 0x76, 0xd8, 0xbf, 0x9a, ], [ 0xd0, 0xa7, 0x04, 0x53, 0x6b, 0xa9, 0x3e, 0x0e, ], [ 0x92, 0x59, 0x58, 0xfc, 0xd6, 0x42, 0x0c, 0xad, ], [ 0xa9, 0x15, 0xc2, 0x9b, 0xc8, 0x06, 0x73, 0x18, ], [ 0x95, 0x2b, 0x79, 0xf3, 0xbc, 0x0a, 0xa6, 0xd4, ], [ 0xf2, 0x1d, 0xf2, 0xe4, 0x1d, 0x45, 0x35, 0xf9, ], [ 0x87, 0x57, 0x75, 0x19, 0x04, 0x8f, 0x53, 0xa9, ], [ 0x10, 0xa5, 0x6c, 0xf5, 0xdf, 0xcd, 0x9a, 0xdb, ], [ 0xeb, 0x75, 0x09, 0x5c, 0xcd, 0x98, 0x6c, 0xd0, ], [ 0x51, 0xa9, 0xcb, 0x9e, 0xcb, 0xa3, 0x12, 0xe6, ], [ 0x96, 0xaf, 0xad, 0xfc, 0x2c, 0xe6, 0x66, 0xc7, ], [ 0x72, 0xfe, 0x52, 0x97, 0x5a, 0x43, 0x64, 0xee, ], [ 0x5a, 0x16, 0x45, 0xb2, 0x76, 0xd5, 0x92, 0xa1, ], [ 0xb2, 0x74, 0xcb, 0x8e, 0xbf, 0x87, 0x87, 0x0a, ], [ 0x6f, 0x9b, 0xb4, 0x20, 0x3d, 0xe7, 0xb3, 0x81, ], [ 0xea, 0xec, 0xb2, 0xa3, 0x0b, 0x22, 0xa8, 0x7f, ], [ 0x99, 0x24, 0xa4, 0x3c, 0xc1, 0x31, 0x57, 0x24, ], [ 0xbd, 0x83, 0x8d, 0x3a, 0xaf, 0xbf, 0x8d, 0xb7, ], [ 0x0b, 0x1a, 0x2a, 0x32, 0x65, 0xd5, 0x1a, 0xea, ], [ 0x13, 0x50, 0x79, 0xa3, 0x23, 0x1c, 0xe6, 0x60, ], [ 0x93, 0x2b, 0x28, 0x46, 0xe4, 0xd7, 0x06, 0x66, ], [ 0xe1, 0x91, 0x5f, 0x5c, 0xb1, 0xec, 0xa4, 0x6c, ], [ 0xf3, 0x25, 0x96, 0x5c, 0xa1, 0x6d, 0x62, 0x9f, ], [ 0x57, 0x5f, 0xf2, 0x8e, 0x60, 0x38, 0x1b, 0xe5, ], [ 0x72, 0x45, 0x06, 0xeb, 0x4c, 0x32, 0x8a, 0x95, ] ]; let k0 = 0x_07_06_05_04_03_02_01_00; let k1 = 0x_0f_0e_0d_0c_0b_0a_09_08; let mut buf = Vec::new(); let mut t = 0; let mut state_inc = SipHasher24::new_with_keys(k0, k1); while t < 64 { let vec = u8to64_le!(vecs[t], 0); let out = hash_with(SipHasher24::new_with_keys(k0, k1), &Bytes(&buf)); assert_eq!(vec, out); let full = hash_with(SipHasher24::new_with_keys(k0, k1), &Bytes(&buf)); let i = state_inc.finish(); assert_eq!(full, i); assert_eq!(full, vec); buf.push(t as u8); Hasher::write(&mut state_inc, &[t as u8]); t += 1; } } #[test] #[cfg(target_arch = "arm")] fn test_hash_usize() { let val = 0xdeadbeef_deadbeef_u64; assert!(hash(&(val as u64)) != hash(&(val as usize))); assert_eq!(hash(&(val as u32)), hash(&(val as usize))); } #[test] #[cfg(target_arch = "x86_64")] fn test_hash_usize() { let val = 0xdeadbeef_deadbeef_u64; assert_eq!(hash(&(val as u64)), hash(&(val as usize))); assert!(hash(&(val as u32)) != hash(&(val as usize))); } #[test] #[cfg(target_arch = "x86")] fn test_hash_usize() { let val = 0xdeadbeef_deadbeef_u64; assert!(hash(&(val as u64)) != hash(&(val as usize))); assert_eq!(hash(&(val as u32)), hash(&(val as usize))); } #[test] fn test_hash_idempotent() { let val64 = 0xdeadbeef_deadbeef_u64; assert_eq!(hash(&val64), hash(&val64)); let val32 = 0xdeadbeef_u32; assert_eq!(hash(&val32), hash(&val32)); } #[test] fn test_hash_no_bytes_dropped_64() { let val = 0xdeadbeef_deadbeef_u64; assert!(hash(&val) != hash(&zero_byte(val, 0))); assert!(hash(&val) != hash(&zero_byte(val, 1))); assert!(hash(&val) != hash(&zero_byte(val, 2))); assert!(hash(&val) != hash(&zero_byte(val, 3))); assert!(hash(&val) != hash(&zero_byte(val, 4))); assert!(hash(&val) != hash(&zero_byte(val, 5))); assert!(hash(&val) != hash(&zero_byte(val, 6))); assert!(hash(&val) != hash(&zero_byte(val, 7))); fn zero_byte(val: u64, byte: usize) -> u64 { assert!(byte < 8); val & !(0xff << (byte * 8)) } } #[test] fn test_hash_no_bytes_dropped_32() { let val = 0xdeadbeef_u32; assert!(hash(&val) != hash(&zero_byte(val, 0))); assert!(hash(&val) != hash(&zero_byte(val, 1))); assert!(hash(&val) != hash(&zero_byte(val, 2))); assert!(hash(&val) != hash(&zero_byte(val, 3))); fn zero_byte(val: u32, byte: usize) -> u32 { assert!(byte < 4); val & !(0xff << (byte * 8)) } } #[test] fn test_hash_no_concat_alias() { let s = ("aa", "bb"); let t = ("aabb", ""); let u = ("a", "abb"); assert!(s != t && t != u); assert!(hash(&s) != hash(&t) && hash(&s) != hash(&u)); let u = [1, 0, 0, 0]; let v = (&u[..1], &u[1..3], &u[3..]); let w = (&u[..], &u[4..4], &u[4..4]); assert!(v != w); assert!(hash(&v) != hash(&w)); } #[bench] fn bench_str_under_8_bytes(b: &mut Bencher) { let s = "foo"; b.iter(|| { assert_eq!(hash(&s), 16262950014981195938); }) } #[bench] fn bench_str_of_8_bytes(b: &mut Bencher) { let s = "foobar78"; b.iter(|| { assert_eq!(hash(&s), 4898293253460910787); }) } #[bench] fn bench_str_over_8_bytes(b: &mut Bencher) { let s = "foobarbaz0"; b.iter(|| { assert_eq!(hash(&s), 10581415515220175264); }) } #[bench] fn bench_long_str(b: &mut Bencher) { let s = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor \ incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud \ exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute \ irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla \ pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui \ officia deserunt mollit anim id est laborum."; b.iter(|| { assert_eq!(hash(&s), 17717065544121360093); }) } #[bench] fn bench_u32(b: &mut Bencher) { let u = 162629500u32; let u = black_box(u); b.iter(|| { hash(&u) }); b.bytes = 8; } #[bench] fn bench_u32_keyed(b: &mut Bencher) { let u = 162629500u32; let u = black_box(u); let k1 = black_box(0x1); let k2 = black_box(0x2); b.iter(|| { hash_with(SipHasher::new_with_keys(k1, k2), &u) }); b.bytes = 8; } #[bench] fn bench_u64(b: &mut Bencher) { let u = 16262950014981195938u64; let u = black_box(u); b.iter(|| { hash(&u) }); b.bytes = 8; } #[bench] fn bench_bytes_4(b: &mut Bencher) { let data = black_box([b' '; 4]); b.iter(|| { hash_bytes(SipHasher::default(), &data) }); b.bytes = 4; } #[bench] fn bench_bytes_7(b: &mut Bencher) { let data = black_box([b' '; 7]); b.iter(|| { hash_bytes(SipHasher::default(), &data) }); b.bytes = 7; } #[bench] fn bench_bytes_8(b: &mut Bencher) { let data = black_box([b' '; 8]); b.iter(|| { hash_bytes(SipHasher::default(), &data) }); b.bytes = 8; } #[bench] fn bench_bytes_a_16(b: &mut Bencher) { let data = black_box([b' '; 16]); b.iter(|| { hash_bytes(SipHasher::default(), &data) }); b.bytes = 16; } #[bench] fn bench_bytes_b_32(b: &mut Bencher) { let data = black_box([b' '; 32]); b.iter(|| { hash_bytes(SipHasher::default(), &data) }); b.bytes = 32; } #[bench] fn bench_bytes_c_128(b: &mut Bencher) { let data = black_box([b' '; 128]); b.iter(|| { hash_bytes(SipHasher::default(), &data) }); b.bytes = 128; }