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feat: libse

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Hatter Jiang
2023-12-09 00:24:59 +08:00
parent 6b132b800a
commit d36c06f461
1 changed files with 43 additions and 52 deletions
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95
swift/se.swift
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@@ -1,64 +1,55 @@
// import Swift
import Foundation
// import Foundation
// import Security
import CryptoKit
import LocalAuthentication
func is_support_secure_enclave() -> Bool {
let se = SecureEnclave.isAvailable
print("Supports SE: \(se)")
return se
// reference:
// https://zenn.dev/iceman/scraps/380f69137c7ea2
// https://www.andyibanez.com/posts/cryptokit-secure-enclave/
@_cdecl("is_support_secure_enclave")
func isSupportSecureEnclave() -> Bool {
return SecureEnclave.isAvailable
}
enum StringError: Error {
case base64error
}
func generateKeyPair() throws {
var error: Unmanaged<CFError>? = nil;
guard
let accessCtrl = SecAccessControlCreateWithFlags(
nil,
kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
[.privateKeyUsage, .biometryCurrentSet],
&error
) else {
throw error!.takeRetainedValue() as Swift.Error
}
var privateKeyReference = try CryptoKit.SecureEnclave.P256.KeyAgreement.PrivateKey.init(
accessControl: accessCtrl
);
var dataRepresentation = privateKeyReference.dataRepresentation;
print("Private key reference: \(privateKeyReference)");
print("Private key reference - publicKey: \(privateKeyReference.publicKey)");
print("Private key reference - dataRepresentation: \(privateKeyReference.dataRepresentation)");
print("Private key reference - dataRepresentation: \(privateKeyReference.dataRepresentation.base64EncodedString())");
}
// // var error: Unmanaged<CFError>? = nil;
// // guard
// // let accessCtrl = SecAccessControlCreateWithFlags(
// // nil,
// // kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
// // [.privateKeyUsage, .biometryCurrentSet],
// // &error
// // ) else {
// // throw error!.takeRetainedValue() as Swift.Error
// // }
// // var privateKeyReference = try CryptoKit.SecureEnclave.P256.KeyAgreement.PrivateKey.init(
// // accessControl: accessCtrl
// // );
// // var dataRepresentation = privateKeyReference.dataRepresentation;
//
// guard let dataRepresentation = Data(base64Encoded: "BIIB2DGCAdQwgfUMAnJrMYHuMAsMA2JpZAQElxyY8jBIDANwdWIEQQQOrOKfvtBWnEquk6+92hH5yxO6SN5TSIA7/kP0DMdzRlojtNQJ3RUs7uJfG/stjJ/Cza+1i+hISbAGaL0BasDPMAgMA3JrbwIBADAHD-----") else {
// throw StringError.base64error
// }
//
//
// let context = LAContext();
// let p = try SecureEnclave.P256.KeyAgreement.PrivateKey(
// dataRepresentation: dataRepresentation, authenticationContext: context)
//
// let ephemeralSecretKey = P256.KeyAgreement.PrivateKey()
// let sharedSecret = try ephemeralSecretKey.sharedSecretFromKeyAgreement(with: p.publicKey)
//
//
// let sharedSecret2 = try p.sharedSecretFromKeyAgreement(with: ephemeralSecretKey.publicKey)
//
//
//
// // print("Private key reference: \(privateKeyReference)");
//
// // print("Private key reference - publicKey: \(privateKeyReference.publicKey)");
//
// // // print("Private key reference - publicKey - ageRecipient: \(privateKeyReference.publicKey.ageRecipient)");
//
// // print("Private key reference - dataRepresentation: \(privateKeyReference.dataRepresentation)");
// // print("Private key reference - dataRepresentation: \(privateKeyReference.dataRepresentation.base64EncodedString())");
//
// // https://www.andyibanez.com/posts/cryptokit-secure-enclave/
//
//
//
// print("Shared secret: \(sharedSecret)")
// print("Shared secret: \(sharedSecret2)")
func computeEcdh() throws {
guard let dataRepresentation = Data(base64Encoded: "BIIB2DGCAdQwgfUMAnJrMYHuMAsMA2JpZAQElx-----"
) else {
throw StringError.base64error
}
let context = LAContext();
let p = try SecureEnclave.P256.KeyAgreement.PrivateKey(
dataRepresentation: dataRepresentation, authenticationContext: context)
let ephemeralSecretKey = P256.KeyAgreement.PrivateKey()
let sharedSecret = try ephemeralSecretKey.sharedSecretFromKeyAgreement(with: p.publicKey)
let sharedSecret2 = try p.sharedSecretFromKeyAgreement(with: ephemeralSecretKey.publicKey)
print("Shared secret: \(sharedSecret)")
print("Shared secret: \(sharedSecret2)")
}