anya_core/security/crypto/
hash.rs

1//! Hash Function Module
2//!
3//! This module provides cryptographic hash function implementations for Bitcoin security.
4
5/// Supported hash algorithms
6#[derive(Debug, Clone, Copy, PartialEq)]
7pub enum HashAlgorithm {
8    /// SHA-256
9    Sha256,
10    /// SHA-512
11    Sha512,
12    /// RIPEMD-160
13    Ripemd160,
14    /// Double SHA-256 (Bitcoin specific)
15    DoubleSha256,
16    /// SHA-256 followed by RIPEMD-160 (Bitcoin specific)
17    Hash160,
18}
19
20/// Compute a hash using the specified algorithm
21pub fn hash(data: &[u8], algorithm: HashAlgorithm) -> Vec<u8> {
22    match algorithm {
23        HashAlgorithm::Sha256 => sha256(data),
24        HashAlgorithm::Sha512 => sha512(data),
25        HashAlgorithm::Ripemd160 => ripemd160(data),
26        HashAlgorithm::DoubleSha256 => double_sha256(data),
27        HashAlgorithm::Hash160 => hash160(data),
28    }
29}
30
31/// Compute SHA-256 hash
32pub fn sha256(_data: &[u8]) -> Vec<u8> {
33    // Placeholder implementation
34    // In a real implementation, we would use a crypto library like ring, etc.
35    vec![0u8; 32]
36}
37
38/// Compute SHA-512 hash
39pub fn sha512(_data: &[u8]) -> Vec<u8> {
40    // Placeholder implementation
41    // In a real implementation, we would use a crypto library like ring, etc.
42    vec![0u8; 64]
43}
44
45/// Compute RIPEMD-160 hash
46pub fn ripemd160(_data: &[u8]) -> Vec<u8> {
47    // Placeholder implementation
48    // In a real implementation, we would use a crypto library like ripemd, etc.
49    vec![0u8; 20]
50}
51
52/// Compute double SHA-256 hash (Bitcoin specific)
53pub fn double_sha256(data: &[u8]) -> Vec<u8> {
54    sha256(&sha256(data))
55}
56
57/// Compute SHA-256 followed by RIPEMD-160 (Bitcoin specific)
58pub fn hash160(data: &[u8]) -> Vec<u8> {
59    ripemd160(&sha256(data))
60}
61
62/// Compute HMAC using the specified hash algorithm
63pub fn hmac(_key: &[u8], _data: &[u8], algorithm: HashAlgorithm) -> Vec<u8> {
64    // Placeholder implementation
65    // In a real implementation, we would use a crypto library with HMAC support
66    match algorithm {
67        HashAlgorithm::Sha256 => vec![0u8; 32],
68        HashAlgorithm::Sha512 => vec![0u8; 64],
69        HashAlgorithm::Ripemd160 => vec![0u8; 20],
70        HashAlgorithm::DoubleSha256 => vec![0u8; 32],
71        HashAlgorithm::Hash160 => vec![0u8; 20],
72    }
73}
anya_core/security/crypto/hash.rs

anya_core/security/crypto/
hash.rs
