snarkvm_console_account/graph_key/
bytes.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> FromBytes for GraphKey<N> {
19    /// Reads an account graph key from a buffer.
20    #[inline]
21    fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
22        let sk_tag = Field::<N>::read_le(&mut reader).map_err(into_io_error)?;
23        Self::try_from(sk_tag).map_err(into_io_error)
24    }
25}
26
27impl<N: Network> ToBytes for GraphKey<N> {
28    /// Writes an account graph key to a buffer.
29    fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
30        self.sk_tag.write_le(&mut writer)
31    }
32}
33
34#[cfg(test)]
35mod tests {
36    use super::*;
37    use crate::PrivateKey;
38    use snarkvm_console_network::MainnetV0;
39
40    type CurrentNetwork = MainnetV0;
41
42    const ITERATIONS: u64 = 1000;
43
44    #[test]
45    fn test_bytes() -> Result<()> {
46        let mut rng = TestRng::default();
47
48        for _ in 0..ITERATIONS {
49            // Sample a new graph key.
50            let private_key = PrivateKey::<CurrentNetwork>::new(&mut rng)?;
51            let view_key = ViewKey::try_from(private_key)?;
52            let expected = GraphKey::try_from(view_key)?;
53
54            // Check the byte representation.
55            let expected_bytes = expected.to_bytes_le()?;
56            assert_eq!(expected, GraphKey::read_le(&expected_bytes[..])?);
57            assert!(GraphKey::<CurrentNetwork>::read_le(&expected_bytes[1..]).is_err());
58        }
59        Ok(())
60    }
61}
snarkvm_console_account/graph_key/bytes.rs

snarkvm_console_account/graph_key/
bytes.rs
