#![allow(deprecated)] use core::hash::{Hash, Hasher}; use core::hash::{SipHasher, SipHasher13}; use core::{mem, slice}; // Hash just the bytes of the slice, without length prefix struct Bytes<'a>(&'a [u8]); impl<'a> Hash for Bytes<'a> { fn hash(&self, state: &mut H) { let Bytes(v) = *self; state.write(v); } } 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) } #[test] const fn test_const_sip() { let val1 = 0x45; let val2 = 0xfeed; const fn const_hash(x: &T) -> u64 { let mut st = SipHasher::new(); x.hash(&mut st); st.finish() } assert!(const_hash(&(val1)) != const_hash(&(val2))); } #[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 = u64::from_le_bytes(vecs[t]); 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 = u64::from_le_bytes(vecs[t]); 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_ne!(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_ne!(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_ne!(hash(&val), hash(&zero_byte(val, 0))); assert_ne!(hash(&val), hash(&zero_byte(val, 1))); assert_ne!(hash(&val), hash(&zero_byte(val, 2))); assert_ne!(hash(&val), hash(&zero_byte(val, 3))); assert_ne!(hash(&val), hash(&zero_byte(val, 4))); assert_ne!(hash(&val), hash(&zero_byte(val, 5))); assert_ne!(hash(&val), hash(&zero_byte(val, 6))); assert_ne!(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_ne!(hash(&val), hash(&zero_byte(val, 0))); assert_ne!(hash(&val), hash(&zero_byte(val, 1))); assert_ne!(hash(&val), hash(&zero_byte(val, 2))); assert_ne!(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_ne!(s, t); assert_ne!(t, u); assert_ne!(hash(&s), hash(&t)); assert_ne!(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_ne!(v, w); assert_ne!(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::()) }); h2.write(b"bytes"); h2.write(b"string"); h2.write(&[0xFFu8, 0x01u8]); assert_eq!(h1.finish(), h2.finish()); }