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// | ||
// SHA256.h | ||
// GigaBitcoin/secp256k1.swift | ||
// | ||
// Copyright (c) 2021 GigaBitcoin LLC | ||
// Distributed under the MIT software license | ||
// | ||
// See the accompanying file LICENSE for information | ||
// | ||
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#include "../secp256k1/src/hash.h" | ||
#include "../secp256k1/include/secp256k1.h" | ||
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/// Exposes secp256k1 SHA256 implementation to the bindings target | ||
/// @param output pointer to an array to be filled by the function | ||
/// @param input a pointer to the data to be hashed | ||
/// @param len the length of the data to be hashed | ||
void secp256k1_swift_sha256(unsigned char *output, const unsigned char *input, size_t len); |
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// | ||
// SHA256.c | ||
// GigaBitcoin/secp256k1.swift | ||
// | ||
// Copyright (c) 2021 GigaBitcoin LLC | ||
// Distributed under the MIT software license | ||
// | ||
// See the accompanying file LICENSE for information | ||
// | ||
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#include "SHA256.h" | ||
#include "../secp256k1/src/hash_impl.h" | ||
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/// Exposes secp256k1 SHA256 implementation to the bindings target | ||
/// @param output pointer to an array to be filled by the function | ||
/// @param input a pointer to the data to be hashed | ||
/// @param len the length of the data to be hashed | ||
void secp256k1_swift_sha256(unsigned char *output, const unsigned char *input, size_t len) { | ||
secp256k1_sha256 hasher; | ||
secp256k1_sha256_initialize(&hasher); | ||
secp256k1_sha256_write(&hasher, input, len); | ||
secp256k1_sha256_finalize(&hasher, output); | ||
} |
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// | ||
// Digests.swift | ||
// GigaBitcoin/secp256k1.swift | ||
// | ||
// Modifications Copyright (c) 2021 GigaBitcoin LLC | ||
// Distributed under the MIT software license | ||
// | ||
// See the accompanying file LICENSE for information | ||
// | ||
// | ||
// NOTICE: THIS FILE HAS BEEN MODIFIED BY GigaBitcoin LLC | ||
// UNDER COMPLIANCE WITH THE APACHE 2.0 LICENSE FROM THE | ||
// ORIGINAL WORK OF THE COMPANY Apple Inc. | ||
// | ||
// THE FOLLOWING IS THE COPYRIGHT OF THE ORIGINAL DOCUMENT: | ||
// | ||
// | ||
//===----------------------------------------------------------------------===// | ||
// | ||
// This source file is part of the SwiftCrypto open source project | ||
// | ||
// Copyright (c) 2019-2020 Apple Inc. and the SwiftCrypto project authors | ||
// Licensed under Apache License v2.0 | ||
// | ||
// See LICENSE.txt for license information | ||
// See CONTRIBUTORS.md for the list of SwiftCrypto project authors | ||
// | ||
// SPDX-License-Identifier: Apache-2.0 | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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import Foundation | ||
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// MARK: - SHA256Digest + DigestPrivate | ||
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public struct SHA256Digest: Digest { | ||
let bytes: (UInt64, UInt64, UInt64, UInt64) | ||
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public static var byteCount: Int { | ||
get { return 32 } | ||
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set { fatalError("Cannot set SHA256.byteCount") } | ||
} | ||
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public func withUnsafeBytes<R>(_ body: (UnsafeRawBufferPointer) throws -> R) rethrows -> R { | ||
return try Swift.withUnsafeBytes(of: bytes) { | ||
let boundsCheckedPtr = UnsafeRawBufferPointer(start: $0.baseAddress, | ||
count: Self.byteCount) | ||
return try body(boundsCheckedPtr) | ||
} | ||
} | ||
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private func toArray() -> ArraySlice<UInt8> { | ||
var array = [UInt8]() | ||
array.appendByte(bytes.0) | ||
array.appendByte(bytes.1) | ||
array.appendByte(bytes.2) | ||
array.appendByte(bytes.3) | ||
return array.prefix(upTo: SHA256Digest.byteCount) | ||
} | ||
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public var description: String { | ||
return "\("SHA256") digest: \(toArray().hexString)" | ||
} | ||
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public func hash(into hasher: inout Hasher) { | ||
self.withUnsafeBytes { hasher.combine(bytes: $0) } | ||
} | ||
} |
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