catbuffer_rust/
vrf_proof_builder.rs

1/*
2 * // Copyright (c) 2016-2019, Jaguar0625, gimre, BloodyRookie, Tech Bureau, Corp.
3 * // Copyright (c) 2020-present, Jaguar0625, gimre, BloodyRookie.
4 * // All rights reserved.
5 * //
6 * // This file is part of Catapult.
7 * //
8 * // Catapult is free software: you can redistribute it and/or modify
9 * // it under the terms of the GNU Lesser General Public License as published by
10 * // the Free Software Foundation, either version 3 of the License, or
11 * // (at your option) any later version.
12 * //
13 * // Catapult is distributed in the hope that it will be useful,
14 * // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * // GNU Lesser General Public License for more details.
17 * //
18 * // You should have received a copy of the GNU Lesser General Public License
19 * // along with Catapult. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22use super::generator_utils::*;
23use super::proof_gamma_dto::*;
24use super::proof_scalar_dto::*;
25use super::proof_verification_hash_dto::*;
26
27/// Verfiable random function proof.
28#[derive(Debug, Clone)]
29pub struct VrfProofBuilder {
30    /// Gamma.
31    gamma: ProofGammaDto,
32    /// Verification hash.
33    verification_hash: ProofVerificationHashDto,
34    /// Scalar.
35    scalar: ProofScalarDto,
36}
37
38
39impl VrfProofBuilder {
40    /// Creates an instance of VrfProofBuilder from binary payload.
41    /// payload: Byte payload to use to serialize the object.
42    /// # Returns
43    /// A VrfProofBuilder.
44    pub fn from_binary(_bytes: &[u8]) -> Self {
45        let gamma = ProofGammaDto::from_binary(&_bytes); // kind:CUSTOM1
46        let mut _bytes = _bytes[gamma.get_size()..].to_vec();
47        let verification_hash = ProofVerificationHashDto::from_binary(&_bytes); // kind:CUSTOM1
48        let mut _bytes = _bytes[verification_hash.get_size()..].to_vec();
49        let scalar = ProofScalarDto::from_binary(&_bytes); // kind:CUSTOM1
50        let mut _bytes = _bytes[scalar.get_size()..].to_vec();
51        VrfProofBuilder { gamma, verification_hash, scalar }
52    }
53
54    /// Gets gamma.
55    ///
56    /// # Returns
57    /// A Gamma.
58    pub fn get_gamma(&self) -> ProofGammaDto {
59        self.gamma.clone()
60    }
61
62    /// Gets verification hash.
63    ///
64    /// # Returns
65    /// A Verification hash.
66    pub fn get_verification_hash(&self) -> ProofVerificationHashDto {
67        self.verification_hash.clone()
68    }
69
70    /// Gets scalar.
71    ///
72    /// # Returns
73    /// A Scalar.
74    pub fn get_scalar(&self) -> ProofScalarDto {
75        self.scalar.clone()
76    }
77
78    /// Gets the size of the type.
79    ///
80    /// Returns:
81    /// A size in bytes.
82    pub fn get_size(&self) -> usize {
83        let mut size = 0;
84        size += self.gamma.get_size(); // gamma;
85        size += self.verification_hash.get_size(); // verification_hash;
86        size += self.scalar.get_size(); // scalar;
87        size
88    }
89
90    /// Serializes self to bytes.
91    ///
92    /// # Returns
93    /// A Serialized bytes.
94    pub fn serializer(&self) -> Vec<u8> {
95        let mut buf: Vec<u8> = vec![];
96        buf.append(&mut self.gamma.serializer()); // kind:CUSTOM
97        buf.append(&mut self.verification_hash.serializer()); // kind:CUSTOM
98        buf.append(&mut self.scalar.serializer()); // kind:CUSTOM
99        buf
100    }
101}
102
catbuffer_rust/vrf_proof_builder.rs

catbuffer_rust/
vrf_proof_builder.rs
