a410c9480a
- Add YKFSmartCardInterface extension to simplify smart card related calls - Use async/await to rewrite callback closures - Update YubiKeyConnection - Better error handling
61 lines
2 KiB
Swift
61 lines
2 KiB
Swift
//
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// YubiKeyAPDU.swift
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// passKit
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//
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// Copyright © 2022 Bob Sun. All rights reserved.
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//
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import YubiKit
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public enum YubiKeyAPDU {
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public static func selectOpenPGPApplication() -> YKFSelectApplicationAPDU {
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YKFSelectApplicationAPDU(data: Data([0xD2, 0x76, 0x00, 0x01, 0x24, 0x01]))!
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}
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public static func verify(password: String) -> YKFAPDU {
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YKFAPDU(cla: 0x00, ins: 0x20, p1: 0x00, p2: 0x82, data: Data(password.utf8), type: .extended)!
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}
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public static func decipherExtended(data: Data) -> [YKFAPDU] {
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let apdu = YKFAPDU(cla: 0x00, ins: 0x2A, p1: 0x80, p2: 0x86, data: data, type: .extended)!
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return [apdu]
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}
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public static func decipherChained(data: Data) -> [YKFAPDU] {
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var result: [YKFAPDU] = []
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let chunks = chunk(data: data)
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for chunk in chunks.dropLast() {
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var apdu: [UInt8] = []
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apdu += [0x10] // CLA (command is not the last command of a chain)
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apdu += [0x2A, 0x80, 0x86] // INS, P1, P2: PSO.DECIPHER
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apdu += withUnsafeBytes(of: UInt8(chunk.count).bigEndian, Array.init)
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apdu += chunk
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result += [YKFAPDU(data: Data(apdu))!]
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}
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var apdu: [UInt8] = []
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apdu += [0x00] // CLA (last or only command of a chain)
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apdu += [0x2A, 0x80, 0x86] // INS, P1, P2: PSO.DECIPHER
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apdu += withUnsafeBytes(of: UInt8(chunks.last!.count).bigEndian, Array.init)
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apdu += chunks.last!
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apdu += [0x00] // Le
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result += [YKFAPDU(data: Data(apdu))!]
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return result
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}
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public static func getApplicationRelatedData() -> YKFAPDU {
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YKFAPDU(cla: 0x00, ins: 0xCA, p1: 0x00, p2: 0x6E, data: Data(), type: .short)!
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}
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static func chunk(data: Data) -> [[UInt8]] {
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// starts with 00 padding
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let padded: [UInt8] = [0x00] + data
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let MAX_SIZE = 254
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return stride(from: 0, to: padded.count, by: MAX_SIZE).map {
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Array(padded[$0 ..< Swift.min($0 + MAX_SIZE, padded.count)])
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}
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}
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}
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