snarkvm_synthesizer_program/
to_checksum.rs

1// Copyright (c) 2019-2025 Provable Inc.
2// This file is part of the snarkVM library.
3
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at:
7
8// http://www.apache.org/licenses/LICENSE-2.0
9
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15
16use super::*;
17
18impl<N: Network> ProgramCore<N> {
19    /// Returns the checksum of the program.
20    ///
21    /// The checksum is a 32-byte hash of the program's source code in string format.
22    /// This ensures a strict definition of program equivalence, useful for program upgradability.
23    pub fn to_checksum(&self) -> [U8<N>; 32] {
24        let mut keccak = TinySha3::v256();
25        keccak.update(self.to_string().as_bytes());
26
27        let mut hash = [0u8; 32];
28        keccak.finalize(&mut hash);
29        hash.map(U8::new)
30    }
31}
snarkvm_synthesizer_program/to_checksum.rs

snarkvm_synthesizer_program/
to_checksum.rs
