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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftCertificates open source project
//
// Copyright (c) 2022 Apple Inc. and the SwiftCertificates project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftCertificates project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import SwiftASN1
@usableFromInline
struct SubjectPublicKeyInfo: DERImplicitlyTaggable, Hashable, Sendable {
@inlinable
static var defaultIdentifier: ASN1Identifier {
.sequence
}
@usableFromInline
var algorithmIdentifier: AlgorithmIdentifier
@usableFromInline
var key: ASN1BitString
@inlinable
init(derEncoded rootNode: ASN1Node, withIdentifier identifier: ASN1Identifier) throws {
// The SPKI block looks like this:
//
// SubjectPublicKeyInfo ::= SEQUENCE {
// algorithm AlgorithmIdentifier,
// subjectPublicKey BIT STRING
// }
self = try DER.sequence(rootNode, identifier: identifier) { nodes in
let algorithmIdentifier = try AlgorithmIdentifier(derEncoded: &nodes)
let key = try ASN1BitString(derEncoded: &nodes)
return SubjectPublicKeyInfo(algorithmIdentifier: algorithmIdentifier, key: key)
}
}
@inlinable
init(algorithmIdentifier: AlgorithmIdentifier, key: ASN1BitString) {
self.algorithmIdentifier = algorithmIdentifier
self.key = key
}
@inlinable
internal init(algorithmIdentifier: AlgorithmIdentifier, key: [UInt8]) {
self.algorithmIdentifier = algorithmIdentifier
self.key = ASN1BitString(bytes: key[...])
}
@inlinable
func serialize(into coder: inout DER.Serializer, withIdentifier identifier: ASN1Identifier) throws {
try coder.appendConstructedNode(identifier: identifier) { coder in
try coder.serialize(self.algorithmIdentifier)
try coder.serialize(self.key)
}
}
}
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