diff options
Diffstat (limited to 'qa/rpc-tests/test_framework/siphash.py')
-rw-r--r-- | qa/rpc-tests/test_framework/siphash.py | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/qa/rpc-tests/test_framework/siphash.py b/qa/rpc-tests/test_framework/siphash.py deleted file mode 100644 index f68ecad36b..0000000000 --- a/qa/rpc-tests/test_framework/siphash.py +++ /dev/null @@ -1,63 +0,0 @@ -#!/usr/bin/env python3 -# Copyright (c) 2016 The Bitcoin Core developers -# Distributed under the MIT software license, see the accompanying -# file COPYING or http://www.opensource.org/licenses/mit-license.php. -"""Specialized SipHash-2-4 implementations. - -This implements SipHash-2-4 for 256-bit integers. -""" - -def rotl64(n, b): - return n >> (64 - b) | (n & ((1 << (64 - b)) - 1)) << b - -def siphash_round(v0, v1, v2, v3): - v0 = (v0 + v1) & ((1 << 64) - 1) - v1 = rotl64(v1, 13) - v1 ^= v0 - v0 = rotl64(v0, 32) - v2 = (v2 + v3) & ((1 << 64) - 1) - v3 = rotl64(v3, 16) - v3 ^= v2 - v0 = (v0 + v3) & ((1 << 64) - 1) - v3 = rotl64(v3, 21) - v3 ^= v0 - v2 = (v2 + v1) & ((1 << 64) - 1) - v1 = rotl64(v1, 17) - v1 ^= v2 - v2 = rotl64(v2, 32) - return (v0, v1, v2, v3) - -def siphash256(k0, k1, h): - n0 = h & ((1 << 64) - 1) - n1 = (h >> 64) & ((1 << 64) - 1) - n2 = (h >> 128) & ((1 << 64) - 1) - n3 = (h >> 192) & ((1 << 64) - 1) - v0 = 0x736f6d6570736575 ^ k0 - v1 = 0x646f72616e646f6d ^ k1 - v2 = 0x6c7967656e657261 ^ k0 - v3 = 0x7465646279746573 ^ k1 ^ n0 - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0 ^= n0 - v3 ^= n1 - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0 ^= n1 - v3 ^= n2 - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0 ^= n2 - v3 ^= n3 - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0 ^= n3 - v3 ^= 0x2000000000000000 - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0 ^= 0x2000000000000000 - v2 ^= 0xFF - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3) - return v0 ^ v1 ^ v2 ^ v3 |