snarkvm_console_program/data/ciphertext/
from_fields.rs

1// Copyright 2024 Aleo Network Foundation
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> TryFrom<Vec<Field<N>>> for Ciphertext<N> {
19    type Error = Error;
20
21    /// Initializes a ciphertext from a list of base field elements.
22    fn try_from(fields: Vec<Field<N>>) -> Result<Self, Self::Error> {
23        // Ensure the number of field elements does not exceed the maximum allowed size.
24        match fields.len() <= N::MAX_DATA_SIZE_IN_FIELDS as usize {
25            true => Ok(Self(fields)),
26            false => bail!("Ciphertext exceeds maximum allowed size"),
27        }
28    }
29}
30
31impl<N: Network> TryFrom<&[Field<N>]> for Ciphertext<N> {
32    type Error = Error;
33
34    /// Initializes a ciphertext from a list of base field elements.
35    fn try_from(fields: &[Field<N>]) -> Result<Self, Self::Error> {
36        Self::from_fields(fields)
37    }
38}
39
40impl<N: Network> FromFields for Ciphertext<N> {
41    type Field = Field<N>;
42
43    /// Initializes a ciphertext from a list of base field elements.
44    fn from_fields(fields: &[Self::Field]) -> Result<Self> {
45        Self::try_from(fields.to_vec())
46    }
47}