darkfi/zkas/
constants.rs

1/* This file is part of DarkFi (https://dark.fi)
2 *
3 * Copyright (C) 2020-2026 Dyne.org foundation
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU Affero General Public License as
7 * published by the Free Software Foundation, either version 3 of the
8 * License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU Affero General Public License for more details.
14 *
15 * You should have received a copy of the GNU Affero General Public License
16 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
17 */
18
19/// Maximum allowed k param (circuit rows = 2^k)
20pub(super) const MAX_K: u32 = 16;
21
22/// Maximum allowed namespace length in bytes
23pub(super) const MAX_NS_LEN: usize = 32;
24
25/// Minimum size allowed for a syntactically valid ZkBinary
26/// MAGIC_BYTES.length = 4;
27/// `k = ##;` = 6 (because the current upper-limit for k is a two-digit number
28/// Therefore 4 + 6 = 10 is the minimum size
29pub(super) const MIN_BIN_SIZE: usize = 10;
30
31/// Maximum allowed binary size (1M)
32pub(super) const MAX_BIN_SIZE: usize = 1024 * 1024;
33
34/// Maximum number of constants allowed
35pub(super) const MAX_CONSTANTS: usize = 1024;
36
37/// Maximum number of literals allowed
38pub(super) const MAX_LITERALS: usize = 4096;
39
40/// Maximum number of witnesses allowed
41pub(super) const MAX_WITNESSES: usize = 4096;
42
43/// Maximum number of opcodes allowed
44pub(super) const MAX_OPCODES: usize = 4096;
45
46/// Maximum number of arguments per opcode
47pub(super) const MAX_ARGS_PER_OPCODE: usize = 256;
48
49/// Maximum total heap size (constants + witnesses + assigned variables)
50pub(super) const MAX_HEAP_SIZE: usize = MAX_CONSTANTS + MAX_WITNESSES + MAX_OPCODES;
51
52/// Maximum string length for names
53pub(super) const MAX_STRING_LEN: usize = 1024;
54
55/// Allowed fields for proofs
56pub(super) const ALLOWED_FIELDS: [&str; 1] = ["pallas"];
57
58/// Maximum recursion depth for nested function calls
59pub(super) const MAX_RECURSION_DEPTH: usize = 16;
60
61// Section markers in the binary format
62pub(super) const SECTION_CONSTANT: &[u8] = b".constant";
63pub(super) const SECTION_LITERAL: &[u8] = b".literal";
64pub(super) const SECTION_WITNESS: &[u8] = b".witness";
65pub(super) const SECTION_CIRCUIT: &[u8] = b".circuit";
66pub(super) const SECTION_DEBUG: &[u8] = b".debug";
darkfi/zkas/constants.rs

darkfi/zkas/
constants.rs
