[英]Get SecKey from SecCertificate pre iOS 10.3
我需要從證書中獲取公鑰
我找到了在iOS 12+和iOS 10.3+上執行此操作的方法,但是如何在iOS 10.0+上執行操作?
func publicKey(for certificate: SecCertificate) -> SecKey? {
if #available(iOS 12.0, *) {
return SecCertificateCopyKey(certificate)
} else if #available(iOS 10.3, *) {
return SecCertificateCopyPublicKey(certificate)
} else {
// ???
return nil
}
}
我找到了解決方案
func publicKey(for certificate: SecCertificate) -> SecKey? {
if #available(iOS 12.0, *) {
return SecCertificateCopyKey(certificate)
} else if #available(iOS 10.3, *) {
return SecCertificateCopyPublicKey(certificate)
} else {
var possibleTrust: SecTrust?
SecTrustCreateWithCertificates(certificate, SecPolicyCreateBasicX509(), &possibleTrust)
guard let trust = possibleTrust else { return nil }
var result: SecTrustResultType = .unspecified
SecTrustEvaluate(trust, &result)
return SecTrustCopyPublicKey(trust)
}
}
在這里找到: https : //github.com/daltoniam/Starscream/blob/a2ed45c0b2f996cb8c335c4f270ecc68c3bd4c0f/Sources/Starscream/SSLSecurity.swift#L214
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