How to do AES 128 encryption of a string in Swift using Xcode and send it as POST to the server?

Question

How to do AES 128 encryption of a string in Swift using Xcode and send it as POST to the server?... I am new to Xcode and am learning to encrypt the string data and want to send

Answer 1

Based on examples from: https://github.com/krzyzanowskim/CryptoSwift

To encrypt a string using CryptoSwift:

func encrypt(text: String) -> String?  {
    if let aes = try? AES(key: "passwordpassword", iv: "drowssapdrowssap"),
       let encrypted = try? aes.encrypt(Array(text.utf8)) {
        return encrypted.toHexString()
    }
    return nil
}

To decrypt:

func decrypt(hexString: String) -> String? {
    if let aes = try? AES(key: "passwordpassword", iv: "drowssapdrowssap"),
        let decrypted = try? aes.decrypt(Array(hex: hexString)) {
        return String(data: Data(bytes: decrypted), encoding: .utf8)
    }
    return nil
}

To send the values to server look up: HTTP Request in Swift with POST method or any one of the thousands of posts how to send data to server.