| #![allow(deprecated)] |
| |
| use core::hash::{Hash, Hasher}; |
| use core::hash::{SipHasher, SipHasher13}; |
| use core::{slice, mem}; |
| |
| // 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<H: Hasher>(&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<H: Hasher, T: Hash>(mut st: H, x: &T) -> u64 { |
| x.hash(&mut st); |
| st.finish() |
| } |
| |
| fn hash<T: Hash>(x: &T) -> u64 { |
| hash_with(SipHasher::new(), x) |
| } |
| |
| #[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 = SipHasher::new_with_keys(k0, k1); |
| |
| while t < 64 { |
| let vec = u8to64_le!(vecs[t], 0); |
| let out = hash_with(SipHasher::new_with_keys(k0, k1), &Bytes(&buf)); |
| assert_eq!(vec, out); |
| |
| let full = hash_with(SipHasher::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_pointer_width = "32")] |
| 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_pointer_width = "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] |
| 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)); |
| } |
| |
| #[test] |
| fn test_write_short_works() { |
| let test_usize = 0xd0c0b0a0usize; |
| let mut h1 = SipHasher::new(); |
| h1.write_usize(test_usize); |
| h1.write(b"bytes"); |
| h1.write(b"string"); |
| h1.write_u8(0xFFu8); |
| h1.write_u8(0x01u8); |
| let mut h2 = SipHasher::new(); |
| h2.write(unsafe { |
| slice::from_raw_parts(&test_usize as *const _ as *const u8, |
| mem::size_of::<usize>()) |
| }); |
| h2.write(b"bytes"); |
| h2.write(b"string"); |
| h2.write(&[0xFFu8, 0x01u8]); |
| assert_eq!(h1.finish(), h2.finish()); |
| } |