snarkvm_console_algorithms/ecdsa/
serialize.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 Serialize for ECDSASignature {
19    /// Serializes the signature into string or bytes.
20    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
21        match serializer.is_human_readable() {
22            true => serializer.collect_str(self),
23            false => ToBytesSerializer::serialize_with_size_encoding(self, serializer),
24        }
25    }
26}
27
28impl<'de> Deserialize<'de> for ECDSASignature {
29    /// Deserializes the signature from a string or bytes.
30    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
31        match deserializer.is_human_readable() {
32            true => FromStr::from_str(&String::deserialize(deserializer)?).map_err(de::Error::custom),
33            false => FromBytesDeserializer::<Self>::deserialize_with_size_encoding(deserializer, "ecdsa_signature"),
34        }
35    }
36}
37
38#[cfg(test)]
39mod tests {
40    use super::*;
41
42    const ITERATIONS: usize = 1000;
43
44    #[test]
45    fn test_serde_json() -> Result<()> {
46        let mut rng = TestRng::default();
47        let hasher = test_helpers::DefaultHasher::default();
48
49        for i in 0..ITERATIONS {
50            // Sample a new signature.
51            let (_, _, expected) = test_helpers::sample_ecdsa_signature(i, &hasher, &mut rng);
52
53            // Serialize
54            let expected_string = &expected.to_string();
55            let candidate_string = serde_json::to_string(&expected)?;
56            assert_eq!(expected_string, serde_json::Value::from_str(&candidate_string)?.as_str().unwrap());
57
58            // Deserialize
59            assert_eq!(expected, ECDSASignature::from_str(expected_string)?);
60            assert_eq!(expected, serde_json::from_str(&candidate_string)?);
61        }
62        Ok(())
63    }
64
65    #[test]
66    fn test_bincode() -> Result<()> {
67        let mut rng = TestRng::default();
68        let hasher = test_helpers::DefaultHasher::default();
69
70        for i in 0..ITERATIONS {
71            // Sample a new signature.
72            let (_, _, expected) = test_helpers::sample_ecdsa_signature(i, &hasher, &mut rng);
73
74            // Serialize
75            let expected_bytes = expected.to_bytes_le()?;
76            let expected_bytes_with_size_encoding = bincode::serialize(&expected)?;
77            assert_eq!(&expected_bytes[..], &expected_bytes_with_size_encoding[8..]);
78
79            // Deserialize
80            assert_eq!(expected, ECDSASignature::read_le(&expected_bytes[..])?);
81            assert_eq!(expected, bincode::deserialize(&expected_bytes_with_size_encoding[..])?);
82        }
83        Ok(())
84    }
85}
snarkvm_console_algorithms/ecdsa/serialize.rs

snarkvm_console_algorithms/ecdsa/
serialize.rs
