mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
446597bd3c
Justification: - reset() is unnecessary; states that have to be reused can be copied - reset() is error-prone. Copying a previous state prevents forgetting struct members. - reset() forces implementation to store sensitive data (key, initial state) in memory even when they are not needed. - reset() is confusing as it has a different meaning elsewhere in Zig.
602 lines
37 KiB
Zig
602 lines
37 KiB
Zig
// SPDX-License-Identifier: MIT
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// Copyright (c) 2015-2020 Zig Contributors
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// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
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// The MIT license requires this copyright notice to be included in all copies
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// and substantial portions of the software.
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// Translated from BLAKE3 reference implementation.
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// Source: https://github.com/BLAKE3-team/BLAKE3
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const std = @import("../std.zig");
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const fmt = std.fmt;
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const math = std.math;
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const mem = std.mem;
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const testing = std.testing;
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const ChunkIterator = struct {
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slice: []u8,
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chunk_len: usize,
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fn init(slice: []u8, chunk_len: usize) ChunkIterator {
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return ChunkIterator{
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.slice = slice,
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.chunk_len = chunk_len,
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};
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}
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fn next(self: *ChunkIterator) ?[]u8 {
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const next_chunk = self.slice[0..math.min(self.chunk_len, self.slice.len)];
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self.slice = self.slice[next_chunk.len..];
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return if (next_chunk.len > 0) next_chunk else null;
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}
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};
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const OUT_LEN: usize = 32;
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const KEY_LEN: usize = 32;
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const BLOCK_LEN: usize = 64;
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const CHUNK_LEN: usize = 1024;
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const IV = [8]u32{
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0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19,
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};
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const MSG_SCHEDULE = [7][16]u8{
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[_]u8{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
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[_]u8{ 2, 6, 3, 10, 7, 0, 4, 13, 1, 11, 12, 5, 9, 14, 15, 8 },
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[_]u8{ 3, 4, 10, 12, 13, 2, 7, 14, 6, 5, 9, 0, 11, 15, 8, 1 },
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[_]u8{ 10, 7, 12, 9, 14, 3, 13, 15, 4, 0, 11, 2, 5, 8, 1, 6 },
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[_]u8{ 12, 13, 9, 11, 15, 10, 14, 8, 7, 2, 5, 3, 0, 1, 6, 4 },
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[_]u8{ 9, 14, 11, 5, 8, 12, 15, 1, 13, 3, 0, 10, 2, 6, 4, 7 },
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[_]u8{ 11, 15, 5, 0, 1, 9, 8, 6, 14, 10, 2, 12, 3, 4, 7, 13 },
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};
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// These are the internal flags that we use to domain separate root/non-root,
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// chunk/parent, and chunk beginning/middle/end. These get set at the high end
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// of the block flags word in the compression function, so their values start
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// high and go down.
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const CHUNK_START: u8 = 1 << 0;
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const CHUNK_END: u8 = 1 << 1;
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const PARENT: u8 = 1 << 2;
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const ROOT: u8 = 1 << 3;
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const KEYED_HASH: u8 = 1 << 4;
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const DERIVE_KEY_CONTEXT: u8 = 1 << 5;
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const DERIVE_KEY_MATERIAL: u8 = 1 << 6;
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// The mixing function, G, which mixes either a column or a diagonal.
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fn g(state: *[16]u32, a: usize, b: usize, c: usize, d: usize, mx: u32, my: u32) void {
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_ = @addWithOverflow(u32, state[a], state[b], &state[a]);
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_ = @addWithOverflow(u32, state[a], mx, &state[a]);
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state[d] = math.rotr(u32, state[d] ^ state[a], 16);
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_ = @addWithOverflow(u32, state[c], state[d], &state[c]);
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state[b] = math.rotr(u32, state[b] ^ state[c], 12);
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_ = @addWithOverflow(u32, state[a], state[b], &state[a]);
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_ = @addWithOverflow(u32, state[a], my, &state[a]);
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state[d] = math.rotr(u32, state[d] ^ state[a], 8);
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_ = @addWithOverflow(u32, state[c], state[d], &state[c]);
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state[b] = math.rotr(u32, state[b] ^ state[c], 7);
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}
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fn round(state: *[16]u32, msg: [16]u32, schedule: [16]u8) void {
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// Mix the columns.
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g(state, 0, 4, 8, 12, msg[schedule[0]], msg[schedule[1]]);
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g(state, 1, 5, 9, 13, msg[schedule[2]], msg[schedule[3]]);
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g(state, 2, 6, 10, 14, msg[schedule[4]], msg[schedule[5]]);
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g(state, 3, 7, 11, 15, msg[schedule[6]], msg[schedule[7]]);
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// Mix the diagonals.
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g(state, 0, 5, 10, 15, msg[schedule[8]], msg[schedule[9]]);
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g(state, 1, 6, 11, 12, msg[schedule[10]], msg[schedule[11]]);
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g(state, 2, 7, 8, 13, msg[schedule[12]], msg[schedule[13]]);
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g(state, 3, 4, 9, 14, msg[schedule[14]], msg[schedule[15]]);
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}
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fn compress(
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chaining_value: [8]u32,
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block_words: [16]u32,
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block_len: u32,
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counter: u64,
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flags: u8,
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) [16]u32 {
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var state = [16]u32{
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chaining_value[0],
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chaining_value[1],
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chaining_value[2],
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chaining_value[3],
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chaining_value[4],
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chaining_value[5],
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chaining_value[6],
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chaining_value[7],
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IV[0],
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IV[1],
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IV[2],
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IV[3],
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@truncate(u32, counter),
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@truncate(u32, counter >> 32),
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block_len,
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flags,
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};
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for (MSG_SCHEDULE) |schedule| {
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round(&state, block_words, schedule);
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}
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for (chaining_value) |_, i| {
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state[i] ^= state[i + 8];
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state[i + 8] ^= chaining_value[i];
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}
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return state;
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}
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fn first_8_words(words: [16]u32) [8]u32 {
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return @ptrCast(*const [8]u32, &words).*;
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}
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fn words_from_little_endian_bytes(words: []u32, bytes: []const u8) void {
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var byte_slice = bytes;
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for (words) |*word| {
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word.* = mem.readIntSliceLittle(u32, byte_slice);
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byte_slice = byte_slice[4..];
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}
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}
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// Each chunk or parent node can produce either an 8-word chaining value or, by
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// setting the ROOT flag, any number of final output bytes. The Output struct
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// captures the state just prior to choosing between those two possibilities.
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const Output = struct {
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input_chaining_value: [8]u32,
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block_words: [16]u32,
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block_len: u32,
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counter: u64,
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flags: u8,
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fn chaining_value(self: *const Output) [8]u32 {
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return first_8_words(compress(
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self.input_chaining_value,
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self.block_words,
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self.block_len,
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self.counter,
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self.flags,
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));
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}
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fn root_output_bytes(self: *const Output, output: []u8) void {
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var out_block_it = ChunkIterator.init(output, 2 * OUT_LEN);
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var output_block_counter: usize = 0;
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while (out_block_it.next()) |out_block| {
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var words = compress(
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self.input_chaining_value,
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self.block_words,
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self.block_len,
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output_block_counter,
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self.flags | ROOT,
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);
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var out_word_it = ChunkIterator.init(out_block, 4);
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var word_counter: usize = 0;
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while (out_word_it.next()) |out_word| {
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var word_bytes: [4]u8 = undefined;
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mem.writeIntLittle(u32, &word_bytes, words[word_counter]);
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mem.copy(u8, out_word, word_bytes[0..out_word.len]);
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word_counter += 1;
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}
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output_block_counter += 1;
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}
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}
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};
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const ChunkState = struct {
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chaining_value: [8]u32,
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chunk_counter: u64,
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block: [BLOCK_LEN]u8 = [_]u8{0} ** BLOCK_LEN,
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block_len: u8 = 0,
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blocks_compressed: u8 = 0,
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flags: u8,
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fn init(key: [8]u32, chunk_counter: u64, flags: u8) ChunkState {
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return ChunkState{
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.chaining_value = key,
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.chunk_counter = chunk_counter,
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.flags = flags,
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};
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}
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fn len(self: *const ChunkState) usize {
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return BLOCK_LEN * @as(usize, self.blocks_compressed) + @as(usize, self.block_len);
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}
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fn fill_block_buf(self: *ChunkState, input: []const u8) []const u8 {
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const want = BLOCK_LEN - self.block_len;
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const take = math.min(want, input.len);
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mem.copy(u8, self.block[self.block_len..][0..take], input[0..take]);
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self.block_len += @truncate(u8, take);
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return input[take..];
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}
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fn start_flag(self: *const ChunkState) u8 {
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return if (self.blocks_compressed == 0) CHUNK_START else 0;
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}
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fn update(self: *ChunkState, input_slice: []const u8) void {
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var input = input_slice;
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while (input.len > 0) {
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// If the block buffer is full, compress it and clear it. More
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// input is coming, so this compression is not CHUNK_END.
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if (self.block_len == BLOCK_LEN) {
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var block_words: [16]u32 = undefined;
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words_from_little_endian_bytes(block_words[0..], self.block[0..]);
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self.chaining_value = first_8_words(compress(
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self.chaining_value,
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block_words,
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BLOCK_LEN,
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self.chunk_counter,
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self.flags | self.start_flag(),
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));
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self.blocks_compressed += 1;
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self.block = [_]u8{0} ** BLOCK_LEN;
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self.block_len = 0;
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}
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// Copy input bytes into the block buffer.
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input = self.fill_block_buf(input);
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}
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}
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fn output(self: *const ChunkState) Output {
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var block_words: [16]u32 = undefined;
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words_from_little_endian_bytes(block_words[0..], self.block[0..]);
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return Output{
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.input_chaining_value = self.chaining_value,
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.block_words = block_words,
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.block_len = self.block_len,
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.counter = self.chunk_counter,
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.flags = self.flags | self.start_flag() | CHUNK_END,
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};
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}
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};
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fn parent_output(
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left_child_cv: [8]u32,
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right_child_cv: [8]u32,
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key: [8]u32,
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flags: u8,
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) Output {
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var block_words: [16]u32 = undefined;
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mem.copy(u32, block_words[0..8], left_child_cv[0..]);
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mem.copy(u32, block_words[8..], right_child_cv[0..]);
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return Output{
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.input_chaining_value = key,
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.block_words = block_words,
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.block_len = BLOCK_LEN, // Always BLOCK_LEN (64) for parent nodes.
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.counter = 0, // Always 0 for parent nodes.
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.flags = PARENT | flags,
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};
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}
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fn parent_cv(
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left_child_cv: [8]u32,
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right_child_cv: [8]u32,
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key: [8]u32,
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flags: u8,
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) [8]u32 {
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return parent_output(left_child_cv, right_child_cv, key, flags).chaining_value();
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}
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/// An incremental hasher that can accept any number of writes.
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pub const Blake3 = struct {
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chunk_state: ChunkState,
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key: [8]u32,
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cv_stack: [54][8]u32 = undefined, // Space for 54 subtree chaining values:
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cv_stack_len: u8 = 0, // 2^54 * CHUNK_LEN = 2^64
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flags: u8,
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pub const digest_length = OUT_LEN;
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pub const block_length = BLOCK_LEN;
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fn init_internal(key: [8]u32, flags: u8) Blake3 {
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return Blake3{
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.chunk_state = ChunkState.init(key, 0, flags),
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.key = key,
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.flags = flags,
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};
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}
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/// Construct a new `Blake3` for the regular hash function.
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pub fn init() Blake3 {
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return comptime Blake3.init_internal(IV, 0);
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}
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/// Construct a new `Blake3` for the keyed hash function.
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pub fn init_keyed(key: [KEY_LEN]u8) Blake3 {
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var key_words: [8]u32 = undefined;
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words_from_little_endian_bytes(key_words[0..], key[0..]);
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return Blake3.init_internal(key_words, KEYED_HASH);
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}
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/// Construct a new `Blake3` for the key derivation function. The context
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/// string should be hardcoded, globally unique, and application-specific.
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pub fn init_derive_key(context: []const u8) Blake3 {
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var context_hasher = Blake3.init_internal(IV, DERIVE_KEY_CONTEXT);
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context_hasher.update(context);
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var context_key: [KEY_LEN]u8 = undefined;
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context_hasher.final(context_key[0..]);
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var context_key_words: [8]u32 = undefined;
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words_from_little_endian_bytes(context_key_words[0..], context_key[0..]);
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return Blake3.init_internal(context_key_words, DERIVE_KEY_MATERIAL);
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}
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pub fn hash(in: []const u8, out: []u8) void {
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var hasher = Blake3.init();
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hasher.update(in);
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hasher.final(out);
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}
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fn push_cv(self: *Blake3, cv: [8]u32) void {
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self.cv_stack[self.cv_stack_len] = cv;
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self.cv_stack_len += 1;
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}
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fn pop_cv(self: *Blake3) [8]u32 {
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self.cv_stack_len -= 1;
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return self.cv_stack[self.cv_stack_len];
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}
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// Section 5.1.2 of the BLAKE3 spec explains this algorithm in more detail.
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fn add_chunk_chaining_value(self: *Blake3, first_cv: [8]u32, total_chunks: u64) void {
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// This chunk might complete some subtrees. For each completed subtree,
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// its left child will be the current top entry in the CV stack, and
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// its right child will be the current value of `new_cv`. Pop each left
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// child off the stack, merge it with `new_cv`, and overwrite `new_cv`
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// with the result. After all these merges, push the final value of
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// `new_cv` onto the stack. The number of completed subtrees is given
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// by the number of trailing 0-bits in the new total number of chunks.
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var new_cv = first_cv;
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var chunk_counter = total_chunks;
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while (chunk_counter & 1 == 0) {
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new_cv = parent_cv(self.pop_cv(), new_cv, self.key, self.flags);
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chunk_counter >>= 1;
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}
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self.push_cv(new_cv);
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}
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/// Add input to the hash state. This can be called any number of times.
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pub fn update(self: *Blake3, input_slice: []const u8) void {
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var input = input_slice;
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while (input.len > 0) {
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// If the current chunk is complete, finalize it and reset the
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// chunk state. More input is coming, so this chunk is not ROOT.
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if (self.chunk_state.len() == CHUNK_LEN) {
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const chunk_cv = self.chunk_state.output().chaining_value();
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const total_chunks = self.chunk_state.chunk_counter + 1;
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self.add_chunk_chaining_value(chunk_cv, total_chunks);
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self.chunk_state = ChunkState.init(self.key, total_chunks, self.flags);
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}
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// Compress input bytes into the current chunk state.
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const want = CHUNK_LEN - self.chunk_state.len();
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const take = math.min(want, input.len);
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self.chunk_state.update(input[0..take]);
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input = input[take..];
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}
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}
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/// Finalize the hash and write any number of output bytes.
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pub fn final(self: *const Blake3, out_slice: []u8) void {
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// Starting with the Output from the current chunk, compute all the
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// parent chaining values along the right edge of the tree, until we
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// have the root Output.
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var output = self.chunk_state.output();
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var parent_nodes_remaining: usize = self.cv_stack_len;
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while (parent_nodes_remaining > 0) {
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parent_nodes_remaining -= 1;
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output = parent_output(
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self.cv_stack[parent_nodes_remaining],
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output.chaining_value(),
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self.key,
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self.flags,
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);
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}
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output.root_output_bytes(out_slice);
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}
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};
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// Use named type declarations to workaround crash with anonymous structs (issue #4373).
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const ReferenceTest = struct {
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key: *const [KEY_LEN]u8,
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context_string: []const u8,
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cases: []const ReferenceTestCase,
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};
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const ReferenceTestCase = struct {
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input_len: usize,
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hash: *const [262]u8,
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keyed_hash: *const [262]u8,
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derive_key: *const [262]u8,
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};
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// Each test is an input length and three outputs, one for each of the `hash`, `keyed_hash`, and
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// `derive_key` modes. The input in each case is filled with a 251-byte-long repeating pattern:
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// 0, 1, 2, ..., 249, 250, 0, 1, ... The key used with `keyed_hash` is the 32-byte ASCII string
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// given in the `key` field below. For `derive_key`, the test input is used as the input key, and
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// the context string is 'BLAKE3 2019-12-27 16:29:52 test vectors context'. (As good practice for
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// following the security requirements of `derive_key`, test runners should make that context
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// string a hardcoded constant, and we do not provided it in machine-readable form.) Outputs are
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// encoded as hexadecimal. Each case is an extended output, and implementations should also check
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// that the first 32 bytes match their default-length output.
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//
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// Source: https://github.com/BLAKE3-team/BLAKE3/blob/92d421dea1a89e2f079f4dbd93b0dab41234b279/test_vectors/test_vectors.json
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const reference_test = ReferenceTest{
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.key = "whats the Elvish word for friend",
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.context_string = "BLAKE3 2019-12-27 16:29:52 test vectors context",
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.cases = &[_]ReferenceTestCase{
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.{
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.input_len = 0,
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.derive_key = "2cc39783c223154fea8dfb7c1b1660f2ac2dcbd1c1de8277b0b0dd39b7e50d7d905630c8be290dfcf3e6842f13bddd573c098c3f17361f1f206b8cad9d088aa4a3f746752c6b0ce6a83b0da81d59649257cdf8eb3e9f7d4998e41021fac119deefb896224ac99f860011f73609e6e0e4540f93b273e56547dfd3aa1a035ba6689d89a0",
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},
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.{
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.keyed_hash = "6d7878dfff2f485635d39013278ae14f1454b8c0a3a2d34bc1ab38228a80c95b6568c0490609413006fbd428eb3fd14e7756d90f73a4725fad147f7bf70fd61c4e0cf7074885e92b0e3f125978b4154986d4fb202a3f331a3fb6cf349a3a70e49990f98fe4289761c8602c4e6ab1138d31d3b62218078b2f3ba9a88e1d08d0dd4cea11",
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.derive_key = "b3e2e340a117a499c6cf2398a19ee0d29cca2bb7404c73063382693bf66cb06c5827b91bf889b6b97c5477f535361caefca0b5d8c4746441c57617111933158950670f9aa8a05d791daae10ac683cbef8faf897c84e6114a59d2173c3f417023a35d6983f2c7dfa57e7fc559ad751dbfb9ffab39c2ef8c4aafebc9ae973a64f0c76551",
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},
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.{
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.input_len = 1023,
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.keyed_hash = "c951ecdf03288d0fcc96ee3413563d8a6d3589547f2c2fb36d9786470f1b9d6e890316d2e6d8b8c25b0a5b2180f94fb1a158ef508c3cde45e2966bd796a696d3e13efd86259d756387d9becf5c8bf1ce2192b87025152907b6d8cc33d17826d8b7b9bc97e38c3c85108ef09f013e01c229c20a83d9e8efac5b37470da28575fd755a10",
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.derive_key = "74a16c1c3d44368a86e1ca6df64be6a2f64cce8f09220787450722d85725dea59c413264404661e9e4d955409dfe4ad3aa487871bcd454ed12abfe2c2b1eb7757588cf6cb18d2eccad49e018c0d0fec323bec82bf1644c6325717d13ea712e6840d3e6e730d35553f59eff5377a9c350bcc1556694b924b858f329c44ee64b884ef00d",
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|
},
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.{
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|
.input_len = 1024,
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.keyed_hash = "75c46f6f3d9eb4f55ecaaee480db732e6c2105546f1e675003687c31719c7ba4a78bc838c72852d4f49c864acb7adafe2478e824afe51c8919d06168414c265f298a8094b1ad813a9b8614acabac321f24ce61c5a5346eb519520d38ecc43e89b5000236df0597243e4d2493fd626730e2ba17ac4d8824d09d1a4a8f57b8227778e2de",
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.derive_key = "7356cd7720d5b66b6d0697eb3177d9f8d73a4a5c5e968896eb6a6896843027066c23b601d3ddfb391e90d5c8eccdef4ae2a264bce9e612ba15e2bc9d654af1481b2e75dbabe615974f1070bba84d56853265a34330b4766f8e75edd1f4a1650476c10802f22b64bd3919d246ba20a17558bc51c199efdec67e80a227251808d8ce5bad",
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|
},
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.{
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|
.input_len = 1025,
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.hash = "d00278ae47eb27b34faecf67b4fe263f82d5412916c1ffd97c8cb7fb814b8444f4c4a22b4b399155358a994e52bf255de60035742ec71bd08ac275a1b51cc6bfe332b0ef84b409108cda080e6269ed4b3e2c3f7d722aa4cdc98d16deb554e5627be8f955c98e1d5f9565a9194cad0c4285f93700062d9595adb992ae68ff12800ab67a",
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.keyed_hash = "357dc55de0c7e382c900fd6e320acc04146be01db6a8ce7210b7189bd664ea69362396b77fdc0d2634a552970843722066c3c15902ae5097e00ff53f1e116f1cd5352720113a837ab2452cafbde4d54085d9cf5d21ca613071551b25d52e69d6c81123872b6f19cd3bc1333edf0c52b94de23ba772cf82636cff4542540a7738d5b930",
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.derive_key = "effaa245f065fbf82ac186839a249707c3bddf6d3fdda22d1b95a3c970379bcb5d31013a167509e9066273ab6e2123bc835b408b067d88f96addb550d96b6852dad38e320b9d940f86db74d398c770f462118b35d2724efa13da97194491d96dd37c3c09cbef665953f2ee85ec83d88b88d11547a6f911c8217cca46defa2751e7f3ad",
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|
},
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.{
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|
.input_len = 2048,
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.hash = "e776b6028c7cd22a4d0ba182a8bf62205d2ef576467e838ed6f2529b85fba24a9a60bf80001410ec9eea6698cd537939fad4749edd484cb541aced55cd9bf54764d063f23f6f1e32e12958ba5cfeb1bf618ad094266d4fc3c968c2088f677454c288c67ba0dba337b9d91c7e1ba586dc9a5bc2d5e90c14f53a8863ac75655461cea8f9",
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.keyed_hash = "879cf1fa2ea0e79126cb1063617a05b6ad9d0b696d0d757cf053439f60a99dd10173b961cd574288194b23ece278c330fbb8585485e74967f31352a8183aa782b2b22f26cdcadb61eed1a5bc144b8198fbb0c13abbf8e3192c145d0a5c21633b0ef86054f42809df823389ee40811a5910dcbd1018af31c3b43aa55201ed4edaac74fe",
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.derive_key = "7b2945cb4fef70885cc5d78a87bf6f6207dd901ff239201351ffac04e1088a23e2c11a1ebffcea4d80447867b61badb1383d842d4e79645d48dd82ccba290769caa7af8eaa1bd78a2a5e6e94fbdab78d9c7b74e894879f6a515257ccf6f95056f4e25390f24f6b35ffbb74b766202569b1d797f2d4bd9d17524c720107f985f4ddc583",
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},
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.{
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|
.input_len = 2049,
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.hash = "5f4d72f40d7a5f82b15ca2b2e44b1de3c2ef86c426c95c1af0b687952256303096de31d71d74103403822a2e0bc1eb193e7aecc9643a76b7bbc0c9f9c52e8783aae98764ca468962b5c2ec92f0c74eb5448d519713e09413719431c802f948dd5d90425a4ecdadece9eb178d80f26efccae630734dff63340285adec2aed3b51073ad3",
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.keyed_hash = "9f29700902f7c86e514ddc4df1e3049f258b2472b6dd5267f61bf13983b78dd5f9a88abfefdfa1e00b418971f2b39c64ca621e8eb37fceac57fd0c8fc8e117d43b81447be22d5d8186f8f5919ba6bcc6846bd7d50726c06d245672c2ad4f61702c646499ee1173daa061ffe15bf45a631e2946d616a4c345822f1151284712f76b2b0e",
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.derive_key = "2ea477c5515cc3dd606512ee72bb3e0e758cfae7232826f35fb98ca1bcbdf27316d8e9e79081a80b046b60f6a263616f33ca464bd78d79fa18200d06c7fc9bffd808cc4755277a7d5e09da0f29ed150f6537ea9bed946227ff184cc66a72a5f8c1e4bd8b04e81cf40fe6dc4427ad5678311a61f4ffc39d195589bdbc670f63ae70f4b6",
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|
},
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.{
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|
.input_len = 3072,
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.hash = "b98cb0ff3623be03326b373de6b9095218513e64f1ee2edd2525c7ad1e5cffd29a3f6b0b978d6608335c09dc94ccf682f9951cdfc501bfe47b9c9189a6fc7b404d120258506341a6d802857322fbd20d3e5dae05b95c88793fa83db1cb08e7d8008d1599b6209d78336e24839724c191b2a52a80448306e0daa84a3fdb566661a37e11",
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.keyed_hash = "044a0e7b172a312dc02a4c9a818c036ffa2776368d7f528268d2e6b5df19177022f302d0529e4174cc507c463671217975e81dab02b8fdeb0d7ccc7568dd22574c783a76be215441b32e91b9a904be8ea81f7a0afd14bad8ee7c8efc305ace5d3dd61b996febe8da4f56ca0919359a7533216e2999fc87ff7d8f176fbecb3d6f34278b",
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.derive_key = "050df97f8c2ead654d9bb3ab8c9178edcd902a32f8495949feadcc1e0480c46b3604131bbd6e3ba573b6dd682fa0a63e5b165d39fc43a625d00207607a2bfeb65ff1d29292152e26b298868e3b87be95d6458f6f2ce6118437b632415abe6ad522874bcd79e4030a5e7bad2efa90a7a7c67e93f0a18fb28369d0a9329ab5c24134ccb0",
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|
},
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.{
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|
.input_len = 3073,
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.hash = "7124b49501012f81cc7f11ca069ec9226cecb8a2c850cfe644e327d22d3e1cd39a27ae3b79d68d89da9bf25bc27139ae65a324918a5f9b7828181e52cf373c84f35b639b7fccbb985b6f2fa56aea0c18f531203497b8bbd3a07ceb5926f1cab74d14bd66486d9a91eba99059a98bd1cd25876b2af5a76c3e9eed554ed72ea952b603bf",
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.keyed_hash = "68dede9bef00ba89e43f31a6825f4cf433389fedae75c04ee9f0cf16a427c95a96d6da3fe985054d3478865be9a092250839a697bbda74e279e8a9e69f0025e4cfddd6cfb434b1cd9543aaf97c635d1b451a4386041e4bb100f5e45407cbbc24fa53ea2de3536ccb329e4eb9466ec37093a42cf62b82903c696a93a50b702c80f3c3c5",
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|
.derive_key = "72613c9ec9ff7e40f8f5c173784c532ad852e827dba2bf85b2ab4b76f7079081576288e552647a9d86481c2cae75c2dd4e7c5195fb9ada1ef50e9c5098c249d743929191441301c69e1f48505a4305ec1778450ee48b8e69dc23a25960fe33070ea549119599760a8a2d28aeca06b8c5e9ba58bc19e11fe57b6ee98aa44b2a8e6b14a5",
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|
},
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.{
|
|
.input_len = 4096,
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.hash = "015094013f57a5277b59d8475c0501042c0b642e531b0a1c8f58d2163229e9690289e9409ddb1b99768eafe1623da896faf7e1114bebeadc1be30829b6f8af707d85c298f4f0ff4d9438aef948335612ae921e76d411c3a9111df62d27eaf871959ae0062b5492a0feb98ef3ed4af277f5395172dbe5c311918ea0074ce0036454f620",
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.keyed_hash = "befc660aea2f1718884cd8deb9902811d332f4fc4a38cf7c7300d597a081bfc0bbb64a36edb564e01e4b4aaf3b060092a6b838bea44afebd2deb8298fa562b7b597c757b9df4c911c3ca462e2ac89e9a787357aaf74c3b56d5c07bc93ce899568a3eb17d9250c20f6c5f6c1e792ec9a2dcb715398d5a6ec6d5c54f586a00403a1af1de",
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|
.derive_key = "1e0d7f3db8c414c97c6307cbda6cd27ac3b030949da8e23be1a1a924ad2f25b9d78038f7b198596c6cc4a9ccf93223c08722d684f240ff6569075ed81591fd93f9fff1110b3a75bc67e426012e5588959cc5a4c192173a03c00731cf84544f65a2fb9378989f72e9694a6a394a8a30997c2e67f95a504e631cd2c5f55246024761b245",
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|
},
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|
.{
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|
.input_len = 4097,
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.hash = "9b4052b38f1c5fc8b1f9ff7ac7b27cd242487b3d890d15c96a1c25b8aa0fb99505f91b0b5600a11251652eacfa9497b31cd3c409ce2e45cfe6c0a016967316c426bd26f619eab5d70af9a418b845c608840390f361630bd497b1ab44019316357c61dbe091ce72fc16dc340ac3d6e009e050b3adac4b5b2c92e722cffdc46501531956",
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.keyed_hash = "00df940cd36bb9fa7cbbc3556744e0dbc8191401afe70520ba292ee3ca80abbc606db4976cfdd266ae0abf667d9481831ff12e0caa268e7d3e57260c0824115a54ce595ccc897786d9dcbf495599cfd90157186a46ec800a6763f1c59e36197e9939e900809f7077c102f888caaf864b253bc41eea812656d46742e4ea42769f89b83f",
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|
.derive_key = "aca51029626b55fda7117b42a7c211f8c6e9ba4fe5b7a8ca922f34299500ead8a897f66a400fed9198fd61dd2d58d382458e64e100128075fc54b860934e8de2e84170734b06e1d212a117100820dbc48292d148afa50567b8b84b1ec336ae10d40c8c975a624996e12de31abbe135d9d159375739c333798a80c64ae895e51e22f3ad",
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|
},
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|
.{
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|
.input_len = 5120,
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|
.hash = "9cadc15fed8b5d854562b26a9536d9707cadeda9b143978f319ab34230535833acc61c8fdc114a2010ce8038c853e121e1544985133fccdd0a2d507e8e615e611e9a0ba4f47915f49e53d721816a9198e8b30f12d20ec3689989175f1bf7a300eee0d9321fad8da232ece6efb8e9fd81b42ad161f6b9550a069e66b11b40487a5f5059",
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|
.keyed_hash = "2c493e48e9b9bf31e0553a22b23503c0a3388f035cece68eb438d22fa1943e209b4dc9209cd80ce7c1f7c9a744658e7e288465717ae6e56d5463d4f80cdb2ef56495f6a4f5487f69749af0c34c2cdfa857f3056bf8d807336a14d7b89bf62bef2fb54f9af6a546f818dc1e98b9e07f8a5834da50fa28fb5874af91bf06020d1bf0120e",
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|
.derive_key = "7a7acac8a02adcf3038d74cdd1d34527de8a0fcc0ee3399d1262397ce5817f6055d0cefd84d9d57fe792d65a278fd20384ac6c30fdb340092f1a74a92ace99c482b28f0fc0ef3b923e56ade20c6dba47e49227166251337d80a037e987ad3a7f728b5ab6dfafd6e2ab1bd583a95d9c895ba9c2422c24ea0f62961f0dca45cad47bfa0d",
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|
},
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|
.{
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|
.input_len = 5121,
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.hash = "628bd2cb2004694adaab7bbd778a25df25c47b9d4155a55f8fbd79f2fe154cff96adaab0613a6146cdaabe498c3a94e529d3fc1da2bd08edf54ed64d40dcd6777647eac51d8277d70219a9694334a68bc8f0f23e20b0ff70ada6f844542dfa32cd4204ca1846ef76d811cdb296f65e260227f477aa7aa008bac878f72257484f2b6c95",
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|
.keyed_hash = "6ccf1c34753e7a044db80798ecd0782a8f76f33563accaddbfbb2e0ea4b2d0240d07e63f13667a8d1490e5e04f13eb617aea16a8c8a5aaed1ef6fbde1b0515e3c81050b361af6ead126032998290b563e3caddeaebfab592e155f2e161fb7cba939092133f23f9e65245e58ec23457b78a2e8a125588aad6e07d7f11a85b88d375b72d",
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|
.derive_key = "b07f01e518e702f7ccb44a267e9e112d403a7b3f4883a47ffbed4b48339b3c341a0add0ac032ab5aaea1e4e5b004707ec5681ae0fcbe3796974c0b1cf31a194740c14519273eedaabec832e8a784b6e7cfc2c5952677e6c3f2c3914454082d7eb1ce1766ac7d75a4d3001fc89544dd46b5147382240d689bbbaefc359fb6ae30263165",
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|
},
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|
.{
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|
.input_len = 6144,
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|
.hash = "3e2e5b74e048f3add6d21faab3f83aa44d3b2278afb83b80b3c35164ebeca2054d742022da6fdda444ebc384b04a54c3ac5839b49da7d39f6d8a9db03deab32aade156c1c0311e9b3435cde0ddba0dce7b26a376cad121294b689193508dd63151603c6ddb866ad16c2ee41585d1633a2cea093bea714f4c5d6b903522045b20395c83",
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|
.keyed_hash = "3d6b6d21281d0ade5b2b016ae4034c5dec10ca7e475f90f76eac7138e9bc8f1dc35754060091dc5caf3efabe0603c60f45e415bb3407db67e6beb3d11cf8e4f7907561f05dace0c15807f4b5f389c841eb114d81a82c02a00b57206b1d11fa6e803486b048a5ce87105a686dee041207e095323dfe172df73deb8c9532066d88f9da7e",
|
|
.derive_key = "2a95beae63ddce523762355cf4b9c1d8f131465780a391286a5d01abb5683a1597099e3c6488aab6c48f3c15dbe1942d21dbcdc12115d19a8b8465fb54e9053323a9178e4275647f1a9927f6439e52b7031a0b465c861a3fc531527f7758b2b888cf2f20582e9e2c593709c0a44f9c6e0f8b963994882ea4168827823eef1f64169fef",
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|
},
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|
.{
|
|
.input_len = 6145,
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|
.hash = "f1323a8631446cc50536a9f705ee5cb619424d46887f3c376c695b70e0f0507f18a2cfdd73c6e39dd75ce7c1c6e3ef238fd54465f053b25d21044ccb2093beb015015532b108313b5829c3621ce324b8e14229091b7c93f32db2e4e63126a377d2a63a3597997d4f1cba59309cb4af240ba70cebff9a23d5e3ff0cdae2cfd54e070022",
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.keyed_hash = "9ac301e9e39e45e3250a7e3b3df701aa0fb6889fbd80eeecf28dbc6300fbc539f3c184ca2f59780e27a576c1d1fb9772e99fd17881d02ac7dfd39675aca918453283ed8c3169085ef4a466b91c1649cc341dfdee60e32231fc34c9c4e0b9a2ba87ca8f372589c744c15fd6f985eec15e98136f25beeb4b13c4e43dc84abcc79cd4646c",
|
|
.derive_key = "379bcc61d0051dd489f686c13de00d5b14c505245103dc040d9e4dd1facab8e5114493d029bdbd295aaa744a59e31f35c7f52dba9c3642f773dd0b4262a9980a2aef811697e1305d37ba9d8b6d850ef07fe41108993180cf779aeece363704c76483458603bbeeb693cffbbe5588d1f3535dcad888893e53d977424bb707201569a8d2",
|
|
},
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|
.{
|
|
.input_len = 7168,
|
|
.hash = "61da957ec2499a95d6b8023e2b0e604ec7f6b50e80a9678b89d2628e99ada77a5707c321c83361793b9af62a40f43b523df1c8633cecb4cd14d00bdc79c78fca5165b863893f6d38b02ff7236c5a9a8ad2dba87d24c547cab046c29fc5bc1ed142e1de4763613bb162a5a538e6ef05ed05199d751f9eb58d332791b8d73fb74e4fce95",
|
|
.keyed_hash = "b42835e40e9d4a7f42ad8cc04f85a963a76e18198377ed84adddeaecacc6f3fca2f01d5277d69bb681c70fa8d36094f73ec06e452c80d2ff2257ed82e7ba348400989a65ee8daa7094ae0933e3d2210ac6395c4af24f91c2b590ef87d7788d7066ea3eaebca4c08a4f14b9a27644f99084c3543711b64a070b94f2c9d1d8a90d035d52",
|
|
.derive_key = "11c37a112765370c94a51415d0d651190c288566e295d505defdad895dae223730d5a5175a38841693020669c7638f40b9bc1f9f39cf98bda7a5b54ae24218a800a2116b34665aa95d846d97ea988bfcb53dd9c055d588fa21ba78996776ea6c40bc428b53c62b5f3ccf200f647a5aae8067f0ea1976391fcc72af1945100e2a6dcb88",
|
|
},
|
|
.{
|
|
.input_len = 7169,
|
|
.hash = "a003fc7a51754a9b3c7fae0367ab3d782dccf28855a03d435f8cfe74605e781798a8b20534be1ca9eb2ae2df3fae2ea60e48c6fb0b850b1385b5de0fe460dbe9d9f9b0d8db4435da75c601156df9d047f4ede008732eb17adc05d96180f8a73548522840779e6062d643b79478a6e8dbce68927f36ebf676ffa7d72d5f68f050b119c8",
|
|
.keyed_hash = "ed9b1a922c046fdb3d423ae34e143b05ca1bf28b710432857bf738bcedbfa5113c9e28d72fcbfc020814ce3f5d4fc867f01c8f5b6caf305b3ea8a8ba2da3ab69fabcb438f19ff11f5378ad4484d75c478de425fb8e6ee809b54eec9bdb184315dc856617c09f5340451bf42fd3270a7b0b6566169f242e533777604c118a6358250f54",
|
|
.derive_key = "554b0a5efea9ef183f2f9b931b7497995d9eb26f5c5c6dad2b97d62fc5ac31d99b20652c016d88ba2a611bbd761668d5eda3e568e940faae24b0d9991c3bd25a65f770b89fdcadabcb3d1a9c1cb63e69721cacf1ae69fefdcef1e3ef41bc5312ccc17222199e47a26552c6adc460cf47a72319cb5039369d0060eaea59d6c65130f1dd",
|
|
},
|
|
.{
|
|
.input_len = 8192,
|
|
.hash = "aae792484c8efe4f19e2ca7d371d8c467ffb10748d8a5a1ae579948f718a2a635fe51a27db045a567c1ad51be5aa34c01c6651c4d9b5b5ac5d0fd58cf18dd61a47778566b797a8c67df7b1d60b97b19288d2d877bb2df417ace009dcb0241ca1257d62712b6a4043b4ff33f690d849da91ea3bf711ed583cb7b7a7da2839ba71309bbf",
|
|
.keyed_hash = "dc9637c8845a770b4cbf76b8daec0eebf7dc2eac11498517f08d44c8fc00d58a4834464159dcbc12a0ba0c6d6eb41bac0ed6585cabfe0aca36a375e6c5480c22afdc40785c170f5a6b8a1107dbee282318d00d915ac9ed1143ad40765ec120042ee121cd2baa36250c618adaf9e27260fda2f94dea8fb6f08c04f8f10c78292aa46102",
|
|
.derive_key = "ad01d7ae4ad059b0d33baa3c01319dcf8088094d0359e5fd45d6aeaa8b2d0c3d4c9e58958553513b67f84f8eac653aeeb02ae1d5672dcecf91cd9985a0e67f4501910ecba25555395427ccc7241d70dc21c190e2aadee875e5aae6bf1912837e53411dabf7a56cbf8e4fb780432b0d7fe6cec45024a0788cf5874616407757e9e6bef7",
|
|
},
|
|
.{
|
|
.input_len = 8193,
|
|
.hash = "bab6c09cb8ce8cf459261398d2e7aef35700bf488116ceb94a36d0f5f1b7bc3bb2282aa69be089359ea1154b9a9286c4a56af4de975a9aa4a5c497654914d279bea60bb6d2cf7225a2fa0ff5ef56bbe4b149f3ed15860f78b4e2ad04e158e375c1e0c0b551cd7dfc82f1b155c11b6b3ed51ec9edb30d133653bb5709d1dbd55f4e1ff6",
|
|
.keyed_hash = "954a2a75420c8d6547e3ba5b98d963e6fa6491addc8c023189cc519821b4a1f5f03228648fd983aef045c2fa8290934b0866b615f585149587dda2299039965328835a2b18f1d63b7e300fc76ff260b571839fe44876a4eae66cbac8c67694411ed7e09df51068a22c6e67d6d3dd2cca8ff12e3275384006c80f4db68023f24eebba57",
|
|
.derive_key = "af1e0346e389b17c23200270a64aa4e1ead98c61695d917de7d5b00491c9b0f12f20a01d6d622edf3de026a4db4e4526225debb93c1237934d71c7340bb5916158cbdafe9ac3225476b6ab57a12357db3abbad7a26c6e66290e44034fb08a20a8d0ec264f309994d2810c49cfba6989d7abb095897459f5425adb48aba07c5fb3c83c0",
|
|
},
|
|
.{
|
|
.input_len = 16384,
|
|
.hash = "f875d6646de28985646f34ee13be9a576fd515f76b5b0a26bb324735041ddde49d764c270176e53e97bdffa58d549073f2c660be0e81293767ed4e4929f9ad34bbb39a529334c57c4a381ffd2a6d4bfdbf1482651b172aa883cc13408fa67758a3e47503f93f87720a3177325f7823251b85275f64636a8f1d599c2e49722f42e93893",
|
|
.keyed_hash = "9e9fc4eb7cf081ea7c47d1807790ed211bfec56aa25bb7037784c13c4b707b0df9e601b101e4cf63a404dfe50f2e1865bb12edc8fca166579ce0c70dba5a5c0fc960ad6f3772183416a00bd29d4c6e651ea7620bb100c9449858bf14e1ddc9ecd35725581ca5b9160de04060045993d972571c3e8f71e9d0496bfa744656861b169d65",
|
|
.derive_key = "160e18b5878cd0df1c3af85eb25a0db5344d43a6fbd7a8ef4ed98d0714c3f7e160dc0b1f09caa35f2f417b9ef309dfe5ebd67f4c9507995a531374d099cf8ae317542e885ec6f589378864d3ea98716b3bbb65ef4ab5e0ab5bb298a501f19a41ec19af84a5e6b428ecd813b1a47ed91c9657c3fba11c406bc316768b58f6802c9e9b57",
|
|
},
|
|
.{
|
|
.input_len = 31744,
|
|
.hash = "62b6960e1a44bcc1eb1a611a8d6235b6b4b78f32e7abc4fb4c6cdcce94895c47860cc51f2b0c28a7b77304bd55fe73af663c02d3f52ea053ba43431ca5bab7bfea2f5e9d7121770d88f70ae9649ea713087d1914f7f312147e247f87eb2d4ffef0ac978bf7b6579d57d533355aa20b8b77b13fd09748728a5cc327a8ec470f4013226f",
|
|
.keyed_hash = "efa53b389ab67c593dba624d898d0f7353ab99e4ac9d42302ee64cbf9939a4193a7258db2d9cd32a7a3ecfce46144114b15c2fcb68a618a976bd74515d47be08b628be420b5e830fade7c080e351a076fbc38641ad80c736c8a18fe3c66ce12f95c61c2462a9770d60d0f77115bbcd3782b593016a4e728d4c06cee4505cb0c08a42ec",
|
|
.derive_key = "39772aef80e0ebe60596361e45b061e8f417429d529171b6764468c22928e28e9759adeb797a3fbf771b1bcea30150a020e317982bf0d6e7d14dd9f064bc11025c25f31e81bd78a921db0174f03dd481d30e93fd8e90f8b2fee209f849f2d2a52f31719a490fb0ba7aea1e09814ee912eba111a9fde9d5c274185f7bae8ba85d300a2b",
|
|
},
|
|
.{
|
|
.input_len = 102400,
|
|
.hash = "bc3e3d41a1146b069abffad3c0d44860cf664390afce4d9661f7902e7943e085e01c59dab908c04c3342b816941a26d69c2605ebee5ec5291cc55e15b76146e6745f0601156c3596cb75065a9c57f35585a52e1ac70f69131c23d611ce11ee4ab1ec2c009012d236648e77be9295dd0426f29b764d65de58eb7d01dd42248204f45f8e",
|
|
.keyed_hash = "1c35d1a5811083fd7119f5d5d1ba027b4d01c0c6c49fb6ff2cf75393ea5db4a7f9dbdd3e1d81dcbca3ba241bb18760f207710b751846faaeb9dff8262710999a59b2aa1aca298a032d94eacfadf1aa192418eb54808db23b56e34213266aa08499a16b354f018fc4967d05f8b9d2ad87a7278337be9693fc638a3bfdbe314574ee6fc4",
|
|
.derive_key = "4652cff7a3f385a6103b5c260fc1593e13c778dbe608efb092fe7ee69df6e9c6d83a3e041bc3a48df2879f4a0a3ed40e7c961c73eff740f3117a0504c2dff4786d44fb17f1549eb0ba585e40ec29bf7732f0b7e286ff8acddc4cb1e23b87ff5d824a986458dcc6a04ac83969b80637562953df51ed1a7e90a7926924d2763778be8560",
|
|
},
|
|
},
|
|
};
|
|
|
|
fn test_blake3(hasher: *Blake3, input_len: usize, expected_hex: [262]u8) void {
|
|
// Save initial state
|
|
const initial_state = hasher.*;
|
|
|
|
// Setup input pattern
|
|
var input_pattern: [251]u8 = undefined;
|
|
for (input_pattern) |*e, i| e.* = @truncate(u8, i);
|
|
|
|
// Write repeating input pattern to hasher
|
|
var input_counter = input_len;
|
|
while (input_counter > 0) {
|
|
const update_len = math.min(input_counter, input_pattern.len);
|
|
hasher.update(input_pattern[0..update_len]);
|
|
input_counter -= update_len;
|
|
}
|
|
|
|
// Read final hash value
|
|
var actual_bytes: [expected_hex.len / 2]u8 = undefined;
|
|
hasher.final(actual_bytes[0..]);
|
|
|
|
// Compare to expected value
|
|
var expected_bytes: [expected_hex.len / 2]u8 = undefined;
|
|
fmt.hexToBytes(expected_bytes[0..], expected_hex[0..]) catch unreachable;
|
|
testing.expectEqual(actual_bytes, expected_bytes);
|
|
|
|
// Restore initial state
|
|
hasher.* = initial_state;
|
|
}
|
|
|
|
test "BLAKE3 reference test cases" {
|
|
var hash = &Blake3.init();
|
|
var keyed_hash = &Blake3.init_keyed(reference_test.key.*);
|
|
var derive_key = &Blake3.init_derive_key(reference_test.context_string);
|
|
|
|
for (reference_test.cases) |t| {
|
|
test_blake3(hash, t.input_len, t.hash.*);
|
|
test_blake3(keyed_hash, t.input_len, t.keyed_hash.*);
|
|
test_blake3(derive_key, t.input_len, t.derive_key.*);
|
|
}
|
|
}
|