guard let publicKey = SecKeyCopyPublicKey(key) else {
        // Can't get public key
        return
    }
    let algorithm: SecKeyAlgorithm = .eciesEncryptionCofactorVariableIVX963SHA256AESGCM
    guard SecKeyIsAlgorithmSupported(publicKey, .encrypt, algorithm) else {
        // Algorith not supported
        return
    }
    // Now we're ready to encrypt data using publicKey