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305 lines
13 KiB
Rust
305 lines
13 KiB
Rust
use super::*;
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use std::hash::{Hash, Hasher};
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// Hash just the bytes of the slice, without length prefix
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struct Bytes<'a>(&'a [u8]);
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impl<'a> Hash for Bytes<'a> {
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#[allow(unused_must_use)]
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fn hash<H: Hasher>(&self, state: &mut H) {
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for byte in self.0 {
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state.write_u8(*byte);
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}
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}
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}
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fn hash_with<T: Hash>(mut st: SipHasher128, x: &T) -> (u64, u64) {
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x.hash(&mut st);
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st.finish128()
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}
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fn hash<T: Hash>(x: &T) -> (u64, u64) {
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hash_with(SipHasher128::new_with_keys(0, 0), x)
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}
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#[rustfmt::skip]
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const TEST_VECTOR: [[u8; 16]; 64] = [
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[0xe7, 0x7e, 0xbc, 0xb2, 0x27, 0x88, 0xa5, 0xbe, 0xfd, 0x62, 0xdb, 0x6a, 0xdd, 0x30, 0x30, 0x01],
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[0xfc, 0x6f, 0x37, 0x04, 0x60, 0xd3, 0xed, 0xa8, 0x5e, 0x05, 0x73, 0xcc, 0x2b, 0x2f, 0xf0, 0x63],
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[0x75, 0x78, 0x7f, 0x09, 0x05, 0x69, 0x83, 0x9b, 0x85, 0x5b, 0xc9, 0x54, 0x8c, 0x6a, 0xea, 0x95],
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[0x6b, 0xc5, 0xcc, 0xfa, 0x1e, 0xdc, 0xf7, 0x9f, 0x48, 0x23, 0x18, 0x77, 0x12, 0xeb, 0xd7, 0x43],
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[0x0c, 0x78, 0x4e, 0x71, 0xac, 0x2b, 0x28, 0x5a, 0x9f, 0x8e, 0x92, 0xe7, 0x8f, 0xbf, 0x2c, 0x25],
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[0xf3, 0x28, 0xdb, 0x89, 0x34, 0x5b, 0x62, 0x0c, 0x79, 0x52, 0x29, 0xa4, 0x26, 0x95, 0x84, 0x3e],
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[0xdc, 0xd0, 0x3d, 0x29, 0xf7, 0x43, 0xe7, 0x10, 0x09, 0x51, 0xb0, 0xe8, 0x39, 0x85, 0xa6, 0xf8],
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[0x10, 0x84, 0xb9, 0x23, 0xf2, 0xaa, 0xe0, 0xc3, 0xa6, 0x2f, 0x2e, 0xc8, 0x08, 0x48, 0xab, 0x77],
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[0xaa, 0x12, 0xfe, 0xe1, 0xd5, 0xe3, 0xda, 0xb4, 0x72, 0x4f, 0x16, 0xab, 0x35, 0xf9, 0xc7, 0x99],
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[0x81, 0xdd, 0xb8, 0x04, 0x2c, 0xf3, 0x39, 0x94, 0xf4, 0x72, 0x0e, 0x00, 0x94, 0x13, 0x7c, 0x42],
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[0x4f, 0xaa, 0x54, 0x1d, 0x5d, 0x49, 0x8e, 0x89, 0xba, 0x0e, 0xa4, 0xc3, 0x87, 0xb2, 0x2f, 0xb4],
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[0x72, 0x3b, 0x9a, 0xf3, 0x55, 0x44, 0x91, 0xdb, 0xb1, 0xd6, 0x63, 0x3d, 0xfc, 0x6e, 0x0c, 0x4e],
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[0xe5, 0x3f, 0x92, 0x85, 0x9e, 0x48, 0x19, 0xa8, 0xdc, 0x06, 0x95, 0x73, 0x9f, 0xea, 0x8c, 0x65],
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[0xb2, 0xf8, 0x58, 0xc7, 0xc9, 0xea, 0x80, 0x1d, 0x53, 0xd6, 0x03, 0x59, 0x6d, 0x65, 0x78, 0x44],
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[0x87, 0xe7, 0x62, 0x68, 0xdb, 0xc9, 0x22, 0x72, 0x26, 0xb0, 0xca, 0x66, 0x5f, 0x64, 0xe3, 0x78],
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[0xc1, 0x7e, 0x55, 0x05, 0xb2, 0xbd, 0x52, 0x6c, 0x29, 0x21, 0xcd, 0xec, 0x1e, 0x7e, 0x01, 0x09],
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[0xd0, 0xa8, 0xd9, 0x57, 0x15, 0x51, 0x8e, 0xeb, 0xb5, 0x13, 0xb0, 0xf8, 0x3d, 0x9e, 0x17, 0x93],
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[0x23, 0x41, 0x26, 0xf9, 0x3f, 0xbb, 0x66, 0x8d, 0x97, 0x51, 0x12, 0xe8, 0xfe, 0xbd, 0xf7, 0xec],
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[0xef, 0x42, 0xf0, 0x3d, 0xb7, 0x8f, 0x70, 0x4d, 0x02, 0x3c, 0x44, 0x9f, 0x16, 0xb7, 0x09, 0x2b],
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[0xab, 0xf7, 0x62, 0x38, 0xc2, 0x0a, 0xf1, 0x61, 0xb2, 0x31, 0x4b, 0x4d, 0x55, 0x26, 0xbc, 0xe9],
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[0x3c, 0x2c, 0x2f, 0x11, 0xbb, 0x90, 0xcf, 0x0b, 0xe3, 0x35, 0xca, 0x9b, 0x2e, 0x91, 0xe9, 0xb7],
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[0x2a, 0x7a, 0x68, 0x0f, 0x22, 0xa0, 0x2a, 0x92, 0xf4, 0x51, 0x49, 0xd2, 0x0f, 0xec, 0xe0, 0xef],
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[0xc9, 0xa8, 0xd1, 0x30, 0x23, 0x1d, 0xd4, 0x3e, 0x42, 0xe6, 0x45, 0x69, 0x57, 0xf8, 0x37, 0x79],
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[0x1d, 0x12, 0x7b, 0x84, 0x40, 0x5c, 0xea, 0xb9, 0x9f, 0xd8, 0x77, 0x5a, 0x9b, 0xe6, 0xc5, 0x59],
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[0x9e, 0x4b, 0xf8, 0x37, 0xbc, 0xfd, 0x92, 0xca, 0xce, 0x09, 0xd2, 0x06, 0x1a, 0x84, 0xd0, 0x4a],
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[0x39, 0x03, 0x1a, 0x96, 0x5d, 0x73, 0xb4, 0xaf, 0x5a, 0x27, 0x4d, 0x18, 0xf9, 0x73, 0xb1, 0xd2],
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[0x7f, 0x4d, 0x0a, 0x12, 0x09, 0xd6, 0x7e, 0x4e, 0xd0, 0x6f, 0x75, 0x38, 0xe1, 0xcf, 0xad, 0x64],
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[0xe6, 0x1e, 0xe2, 0x40, 0xfb, 0xdc, 0xce, 0x38, 0x96, 0x9f, 0x4c, 0xd2, 0x49, 0x27, 0xdd, 0x93],
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[0x4c, 0x3b, 0xa2, 0xb3, 0x7b, 0x0f, 0xdd, 0x8c, 0xfa, 0x5e, 0x95, 0xc1, 0x89, 0xb2, 0x94, 0x14],
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[0xe0, 0x6f, 0xd4, 0xca, 0x06, 0x6f, 0xec, 0xdd, 0x54, 0x06, 0x8a, 0x5a, 0xd8, 0x89, 0x6f, 0x86],
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[0x5c, 0xa8, 0x4c, 0x34, 0x13, 0x9c, 0x65, 0x80, 0xa8, 0x8a, 0xf2, 0x49, 0x90, 0x72, 0x07, 0x06],
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[0x42, 0xea, 0x96, 0x1c, 0x5b, 0x3c, 0x85, 0x8b, 0x17, 0xc3, 0xe5, 0x50, 0xdf, 0xa7, 0x90, 0x10],
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[0x40, 0x6c, 0x44, 0xde, 0xe6, 0x78, 0x57, 0xb2, 0x94, 0x31, 0x60, 0xf3, 0x0c, 0x74, 0x17, 0xd3],
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[0xc5, 0xf5, 0x7b, 0xae, 0x13, 0x20, 0xfc, 0xf4, 0xb4, 0xe8, 0x68, 0xe7, 0x1d, 0x56, 0xc6, 0x6b],
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[0x04, 0xbf, 0x73, 0x7a, 0x5b, 0x67, 0x6b, 0xe7, 0xc3, 0xde, 0x05, 0x01, 0x7d, 0xf4, 0xbf, 0xf9],
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[0x51, 0x63, 0xc9, 0xc0, 0x3f, 0x19, 0x07, 0xea, 0x10, 0x44, 0xed, 0x5c, 0x30, 0x72, 0x7b, 0x4f],
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[0x37, 0xa1, 0x10, 0xf0, 0x02, 0x71, 0x8e, 0xda, 0xd2, 0x4b, 0x3f, 0x9e, 0xe4, 0x53, 0xf1, 0x40],
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[0xb9, 0x87, 0x7e, 0x38, 0x1a, 0xed, 0xd3, 0xda, 0x08, 0xc3, 0x3e, 0x75, 0xff, 0x23, 0xac, 0x10],
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[0x7c, 0x50, 0x04, 0x00, 0x5e, 0xc5, 0xda, 0x4c, 0x5a, 0xc9, 0x44, 0x0e, 0x5c, 0x72, 0x31, 0x93],
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[0x81, 0xb8, 0x24, 0x37, 0x83, 0xdb, 0xc6, 0x46, 0xca, 0x9d, 0x0c, 0xd8, 0x2a, 0xbd, 0xb4, 0x6c],
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[0x50, 0x57, 0x20, 0x54, 0x3e, 0xb9, 0xb4, 0x13, 0xd5, 0x0b, 0x3c, 0xfa, 0xd9, 0xee, 0xf9, 0x38],
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[0x94, 0x5f, 0x59, 0x4d, 0xe7, 0x24, 0x11, 0xe4, 0xd3, 0x35, 0xbe, 0x87, 0x44, 0x56, 0xd8, 0xf3],
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[0x37, 0x92, 0x3b, 0x3e, 0x37, 0x17, 0x77, 0xb2, 0x11, 0x70, 0xbf, 0x9d, 0x7e, 0x62, 0xf6, 0x02],
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[0x3a, 0xd4, 0xe7, 0xc8, 0x57, 0x64, 0x96, 0x46, 0x11, 0xeb, 0x0a, 0x6c, 0x4d, 0x62, 0xde, 0x56],
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[0xcd, 0x91, 0x39, 0x6c, 0x44, 0xaf, 0x4f, 0x51, 0x85, 0x57, 0x8d, 0x9d, 0xd9, 0x80, 0x3f, 0x0a],
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[0xfe, 0x28, 0x15, 0x8e, 0x72, 0x7b, 0x86, 0x8f, 0x39, 0x03, 0xc9, 0xac, 0xda, 0x64, 0xa2, 0x58],
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[0x40, 0xcc, 0x10, 0xb8, 0x28, 0x8c, 0xe5, 0xf0, 0xbc, 0x3a, 0xc0, 0xb6, 0x8a, 0x0e, 0xeb, 0xc8],
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[0x6f, 0x14, 0x90, 0xf5, 0x40, 0x69, 0x9a, 0x3c, 0xd4, 0x97, 0x44, 0x20, 0xec, 0xc9, 0x27, 0x37],
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[0xd5, 0x05, 0xf1, 0xb7, 0x5e, 0x1a, 0x84, 0xa6, 0x03, 0xc4, 0x35, 0x83, 0xb2, 0xed, 0x03, 0x08],
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[0x49, 0x15, 0x73, 0xcf, 0xd7, 0x2b, 0xb4, 0x68, 0x2b, 0x7c, 0xa5, 0x88, 0x0e, 0x1c, 0x8d, 0x6f],
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[0x3e, 0xd6, 0x9c, 0xfe, 0x45, 0xab, 0x40, 0x3f, 0x2f, 0xd2, 0xad, 0x95, 0x9b, 0xa2, 0x76, 0x66],
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[0x8b, 0xe8, 0x39, 0xef, 0x1b, 0x20, 0xb5, 0x7c, 0x83, 0xba, 0x7e, 0xb6, 0xa8, 0xc2, 0x2b, 0x6a],
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[0x14, 0x09, 0x18, 0x6a, 0xb4, 0x22, 0x31, 0xfe, 0xde, 0xe1, 0x81, 0x62, 0xcf, 0x1c, 0xb4, 0xca],
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[0x2b, 0xf3, 0xcc, 0xc2, 0x4a, 0xb6, 0x72, 0xcf, 0x15, 0x1f, 0xb8, 0xd2, 0xf3, 0xf3, 0x06, 0x9b],
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[0xb9, 0xb9, 0x3a, 0x28, 0x82, 0xd6, 0x02, 0x5c, 0xdb, 0x8c, 0x56, 0xfa, 0x13, 0xf7, 0x53, 0x7b],
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[0xd9, 0x7c, 0xca, 0x36, 0x94, 0xfb, 0x20, 0x6d, 0xb8, 0xbd, 0x1f, 0x36, 0x50, 0xc3, 0x33, 0x22],
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[0x94, 0xec, 0x2e, 0x19, 0xa4, 0x0b, 0xe4, 0x1a, 0xf3, 0x94, 0x0d, 0x6b, 0x30, 0xc4, 0x93, 0x84],
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[0x4b, 0x41, 0x60, 0x3f, 0x20, 0x9a, 0x04, 0x5b, 0xe1, 0x40, 0xa3, 0x41, 0xa3, 0xdf, 0xfe, 0x10],
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[0x23, 0xfb, 0xcb, 0x30, 0x9f, 0x1c, 0xf0, 0x94, 0x89, 0x07, 0x55, 0xab, 0x1b, 0x42, 0x65, 0x69],
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[0xe7, 0xd9, 0xb6, 0x56, 0x90, 0x91, 0x8a, 0x2b, 0x23, 0x2f, 0x2f, 0x5c, 0x12, 0xc8, 0x30, 0x0e],
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[0xad, 0xe8, 0x3c, 0xf7, 0xe7, 0xf3, 0x84, 0x7b, 0x36, 0xfa, 0x4b, 0x54, 0xb0, 0x0d, 0xce, 0x61],
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[0x06, 0x10, 0xc5, 0xf2, 0xee, 0x57, 0x1c, 0x8a, 0xc8, 0x0c, 0xbf, 0xe5, 0x38, 0xbd, 0xf1, 0xc7],
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[0x27, 0x1d, 0x5d, 0x00, 0xfb, 0xdb, 0x5d, 0x15, 0x5d, 0x9d, 0xce, 0xa9, 0x7c, 0xb4, 0x02, 0x18],
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[0x4c, 0x58, 0x00, 0xe3, 0x4e, 0xfe, 0x42, 0x6f, 0x07, 0x9f, 0x6b, 0x0a, 0xa7, 0x52, 0x60, 0xad],
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];
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#[test]
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fn test_siphash_1_3_test_vector() {
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let k0 = 0x_07_06_05_04_03_02_01_00;
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let k1 = 0x_0f_0e_0d_0c_0b_0a_09_08;
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let mut input: Vec<u8> = Vec::new();
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for i in 0..64 {
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let out = hash_with(SipHasher128::new_with_keys(k0, k1), &Bytes(&input[..]));
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let expected = (
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((TEST_VECTOR[i][0] as u64) << 0)
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| ((TEST_VECTOR[i][1] as u64) << 8)
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| ((TEST_VECTOR[i][2] as u64) << 16)
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| ((TEST_VECTOR[i][3] as u64) << 24)
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| ((TEST_VECTOR[i][4] as u64) << 32)
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| ((TEST_VECTOR[i][5] as u64) << 40)
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| ((TEST_VECTOR[i][6] as u64) << 48)
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| ((TEST_VECTOR[i][7] as u64) << 56),
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((TEST_VECTOR[i][8] as u64) << 0)
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| ((TEST_VECTOR[i][9] as u64) << 8)
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| ((TEST_VECTOR[i][10] as u64) << 16)
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| ((TEST_VECTOR[i][11] as u64) << 24)
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| ((TEST_VECTOR[i][12] as u64) << 32)
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| ((TEST_VECTOR[i][13] as u64) << 40)
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| ((TEST_VECTOR[i][14] as u64) << 48)
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| ((TEST_VECTOR[i][15] as u64) << 56),
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);
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assert_eq!(out, expected);
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input.push(i as u8);
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}
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}
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#[test]
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#[cfg(target_arch = "arm")]
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fn test_hash_usize() {
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let val = 0xdeadbeef_deadbeef_u64;
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assert!(hash(&(val as u64)) != hash(&(val as usize)));
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assert_eq!(hash(&(val as u32)), hash(&(val as usize)));
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}
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#[test]
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#[cfg(target_arch = "x86_64")]
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fn test_hash_usize() {
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let val = 0xdeadbeef_deadbeef_u64;
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assert_eq!(hash(&(val as u64)), hash(&(val as usize)));
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assert!(hash(&(val as u32)) != hash(&(val as usize)));
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}
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#[test]
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#[cfg(target_arch = "x86")]
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fn test_hash_usize() {
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let val = 0xdeadbeef_deadbeef_u64;
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assert!(hash(&(val as u64)) != hash(&(val as usize)));
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assert_eq!(hash(&(val as u32)), hash(&(val as usize)));
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}
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#[test]
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fn test_hash_idempotent() {
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let val64 = 0xdeadbeef_deadbeef_u64;
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assert_eq!(hash(&val64), hash(&val64));
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let val32 = 0xdeadbeef_u32;
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assert_eq!(hash(&val32), hash(&val32));
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}
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#[test]
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fn test_hash_no_bytes_dropped_64() {
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let val = 0xdeadbeef_deadbeef_u64;
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assert!(hash(&val) != hash(&zero_byte(val, 0)));
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assert!(hash(&val) != hash(&zero_byte(val, 1)));
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assert!(hash(&val) != hash(&zero_byte(val, 2)));
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assert!(hash(&val) != hash(&zero_byte(val, 3)));
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assert!(hash(&val) != hash(&zero_byte(val, 4)));
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assert!(hash(&val) != hash(&zero_byte(val, 5)));
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assert!(hash(&val) != hash(&zero_byte(val, 6)));
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assert!(hash(&val) != hash(&zero_byte(val, 7)));
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fn zero_byte(val: u64, byte: usize) -> u64 {
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assert!(byte < 8);
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val & !(0xff << (byte * 8))
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}
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}
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#[test]
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fn test_hash_no_bytes_dropped_32() {
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let val = 0xdeadbeef_u32;
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assert!(hash(&val) != hash(&zero_byte(val, 0)));
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assert!(hash(&val) != hash(&zero_byte(val, 1)));
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assert!(hash(&val) != hash(&zero_byte(val, 2)));
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assert!(hash(&val) != hash(&zero_byte(val, 3)));
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fn zero_byte(val: u32, byte: usize) -> u32 {
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assert!(byte < 4);
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val & !(0xff << (byte * 8))
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}
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}
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#[test]
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fn test_hash_no_concat_alias() {
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let s = ("aa", "bb");
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let t = ("aabb", "");
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let u = ("a", "abb");
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assert!(s != t && t != u);
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assert!(hash(&s) != hash(&t) && hash(&s) != hash(&u));
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let u = [1, 0, 0, 0];
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let v = (&u[..1], &u[1..3], &u[3..]);
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let w = (&u[..], &u[4..4], &u[4..4]);
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assert!(v != w);
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assert!(hash(&v) != hash(&w));
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}
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#[test]
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fn test_short_write_works() {
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let test_u8 = 0xFF_u8;
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let test_u16 = 0x1122_u16;
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let test_u32 = 0x22334455_u32;
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let test_u64 = 0x33445566_778899AA_u64;
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let test_u128 = 0x11223344_55667788_99AABBCC_DDEEFF77_u128;
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let test_usize = 0xD0C0B0A0_usize;
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let test_i8 = -1_i8;
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let test_i16 = -2_i16;
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let test_i32 = -3_i32;
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let test_i64 = -4_i64;
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let test_i128 = -5_i128;
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let test_isize = -6_isize;
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let mut h1 = SipHasher128::new_with_keys(0, 0);
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h1.write(b"bytes");
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h1.write(b"string");
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h1.write_u8(test_u8);
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h1.write_u16(test_u16);
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h1.write_u32(test_u32);
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h1.write_u64(test_u64);
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h1.write_u128(test_u128);
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h1.write_usize(test_usize);
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h1.write_i8(test_i8);
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h1.write_i16(test_i16);
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h1.write_i32(test_i32);
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h1.write_i64(test_i64);
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h1.write_i128(test_i128);
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h1.write_isize(test_isize);
|
|
|
|
let mut h2 = SipHasher128::new_with_keys(0, 0);
|
|
h2.write(b"bytes");
|
|
h2.write(b"string");
|
|
h2.write(&test_u8.to_ne_bytes());
|
|
h2.write(&test_u16.to_ne_bytes());
|
|
h2.write(&test_u32.to_ne_bytes());
|
|
h2.write(&test_u64.to_ne_bytes());
|
|
h2.write(&test_u128.to_ne_bytes());
|
|
h2.write(&test_usize.to_ne_bytes());
|
|
h2.write(&test_i8.to_ne_bytes());
|
|
h2.write(&test_i16.to_ne_bytes());
|
|
h2.write(&test_i32.to_ne_bytes());
|
|
h2.write(&test_i64.to_ne_bytes());
|
|
h2.write(&test_i128.to_ne_bytes());
|
|
h2.write(&test_isize.to_ne_bytes());
|
|
|
|
let h1_hash = h1.finish128();
|
|
let h2_hash = h2.finish128();
|
|
|
|
assert_eq!(h1_hash, h2_hash);
|
|
}
|
|
|
|
macro_rules! test_fill_buffer {
|
|
($type:ty, $write_method:ident) => {{
|
|
// Test filling and overfilling the buffer from all possible offsets
|
|
// for a given integer type and its corresponding write method.
|
|
const SIZE: usize = std::mem::size_of::<$type>();
|
|
let input = [42; BUFFER_SIZE];
|
|
let x = 0x01234567_89ABCDEF_76543210_FEDCBA98_u128 as $type;
|
|
let x_bytes = &x.to_ne_bytes();
|
|
|
|
for i in 1..=SIZE {
|
|
let s = &input[..BUFFER_SIZE - i];
|
|
|
|
let mut h1 = SipHasher128::new_with_keys(7, 13);
|
|
h1.write(s);
|
|
h1.$write_method(x);
|
|
|
|
let mut h2 = SipHasher128::new_with_keys(7, 13);
|
|
h2.write(s);
|
|
h2.write(x_bytes);
|
|
|
|
let h1_hash = h1.finish128();
|
|
let h2_hash = h2.finish128();
|
|
|
|
assert_eq!(h1_hash, h2_hash);
|
|
}
|
|
}};
|
|
}
|
|
|
|
#[test]
|
|
fn test_fill_buffer() {
|
|
test_fill_buffer!(u8, write_u8);
|
|
test_fill_buffer!(u16, write_u16);
|
|
test_fill_buffer!(u32, write_u32);
|
|
test_fill_buffer!(u64, write_u64);
|
|
test_fill_buffer!(u128, write_u128);
|
|
test_fill_buffer!(usize, write_usize);
|
|
|
|
test_fill_buffer!(i8, write_i8);
|
|
test_fill_buffer!(i16, write_i16);
|
|
test_fill_buffer!(i32, write_i32);
|
|
test_fill_buffer!(i64, write_i64);
|
|
test_fill_buffer!(i128, write_i128);
|
|
test_fill_buffer!(isize, write_isize);
|
|
}
|