2

我从给定的证书中获得了一个 SecKey。根据证书，SecKey 可以使用 RSA 或 EllipticCurve 加密。

    let certificate = SecCertificateCreateWithData(kCFAllocatorDefault, certificateData) 
    let certArray = [ certificate ]
    let policy = SecPolicyCreateBasicX509()

    var optionalTrust: SecTrust?
    let status = SecTrustCreateWithCertificates(certArray as AnyObject, policy, &optionalTrust)

    if status == errSecSuccess {
        let publicKey = SecTrustCopyPublicKey(optionalTrust!)
        print(publicKey!)
    }

一旦我打印了 publicKey，它就会给我：SecKeyRef algorithm id: 1, key type: RSAPublicKey, version: 4, block size: 2048 bits, exponent: {hex: 10001, decimal: 65537}, modules: , addr: 0x7f7fba5arerw34，其中它特别说明了它的类型为 RSAPublicKey。

有没有办法获得使用的加密类型？

4

0 回答 0