62 lines
1.8 KiB
Swift
62 lines
1.8 KiB
Swift
// SHA1.swift
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// based on the Vapor/open-crypto project which tries to replicate the CryptoKit framework interface
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// written by AdamFowler 2020/01/30
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#if canImport(CommonCrypto)
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import CommonCrypto
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public extension Insecure {
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struct SHA1Digest : ByteDigest {
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public static var byteCount: Int { return Int(CC_SHA1_DIGEST_LENGTH) }
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public var bytes: [UInt8]
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}
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struct SHA1: CCHashFunction {
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public typealias Digest = SHA1Digest
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public static var algorithm: CCHmacAlgorithm { return CCHmacAlgorithm(kCCHmacAlgSHA1) }
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var context: CC_SHA1_CTX
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public static func hash(bufferPointer: UnsafeRawBufferPointer) -> Self.Digest {
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var digest: [UInt8] = .init(repeating: 0, count: Digest.byteCount)
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CC_SHA1(bufferPointer.baseAddress, CC_LONG(bufferPointer.count), &digest)
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return .init(bytes: digest)
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}
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public init() {
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context = CC_SHA1_CTX()
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CC_SHA1_Init(&context)
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}
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public mutating func update(bufferPointer: UnsafeRawBufferPointer) {
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CC_SHA1_Update(&context, bufferPointer.baseAddress, CC_LONG(bufferPointer.count))
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}
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public mutating func finalize() -> Self.Digest {
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var digest: [UInt8] = .init(repeating: 0, count: Digest.byteCount)
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CC_SHA1_Final(&digest, &context)
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return .init(bytes: digest)
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}
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}
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}
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#else
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import CAWSCrypto
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public extension Insecure {
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struct SHA1Digest : ByteDigest {
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public static var byteCount: Int { return Int(SHA_DIGEST_LENGTH) }
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public var bytes: [UInt8]
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}
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struct SHA1: _OpenSSLHashFunction {
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public typealias Digest = SHA1Digest
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public static var algorithm: OpaquePointer { return EVP_sha1() }
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var context: OpaquePointer
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}
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}
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#endif
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