1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftCertificates open source project
//
// Copyright (c) 2023 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
/// An RSA PKCS1 Public Key looks like this:
///
/// ```
/// RSAPublicKey ::= SEQUENCE {
/// modulus INTEGER, -- n
/// publicExponent INTEGER -- e
/// }
/// ```
///
/// This type can decode that format.
@usableFromInline
struct RSAPKCS1PublicKey: DERImplicitlyTaggable, Hashable, Sendable {
@inlinable
static var defaultIdentifier: ASN1Identifier {
.sequence
}
@usableFromInline
var modulus: ArraySlice<UInt8>
@usableFromInline
var publicExponent: ArraySlice<UInt8>
@inlinable
init(derEncoded rootNode: ASN1Node, withIdentifier identifier: ASN1Identifier) throws {
self = try DER.sequence(rootNode, identifier: identifier) { nodes in
let modulus = try ArraySlice(derEncoded: &nodes)
let publicExponent = try ArraySlice(derEncoded: &nodes)
return RSAPKCS1PublicKey(modulus: modulus, publicExponent: publicExponent)
}
}
@inlinable
init(modulus: ArraySlice<UInt8>, publicExponent: ArraySlice<UInt8>) {
self.modulus = modulus
self.publicExponent = publicExponent
}
@inlinable
func serialize(into coder: inout DER.Serializer, withIdentifier identifier: ASN1Identifier) throws {
try coder.appendConstructedNode(identifier: identifier) { coder in
try coder.serialize(self.modulus)
try coder.serialize(self.publicExponent)
}
}
}
|
