I am struggling with Swift 3. I am getting (hexString) response from server in encrypted form and I am first converting it into Data.
Below is my method to converting hexString to in Data:
extension String {
func dataFromHexadecimalString() -> Data? {
var data = Data(capacity: characters.count / 2)
let regex = try! NSRegularExpression(pattern: "[0-9a-f]{1,2}", options: .caseInsensitive)
regex.enumerateMatches(in: self, options: [], range: NSMakeRange(0, characters.count)) { match, flags, stop in
let byteString = (self as NSString).substring(with: match!.range)
var num = UInt8(byteString, radix: 16)!
data.append(&num, count: 1)
}
guard data.count > 0 else {
return nil
}
return data
}
}
After that I am Decrypting the data using CryptoSwift framework. Here below is my method to decrypt the data :-
func getAllShops(data : [String : AnyObject]) {
AFWrapper.sharedInstance.requestPOSTURL(My_URL, params: data, headers: nil, success: {(json) in
// Key for AES
let key = "My_Key"
// Iv for AES
let iv = "My_IV"
//Hex String from Server Response
let str = json["encrypted"].string!
do {
//Converting Hex String to Data
let dataStr = str.dataFromHexadecimalString()
//Decrypt the Data
let decryptedData = try AES(key: key, iv: iv, blockMode: .CBC, padding: NoPadding()).decrypt(dataStr!)
//Getting json string Response
var jsonResponse = String(bytes: decryptedData, encoding: .utf8)!
/*let response = JSON(jsonResponse)
print(response)
let validJson = JSONSerialization.isValidJSONObject(response)//(JSONSerialization.JSONObjectWithData(jsonData, options:nil, error: &error) != nil)
print("Valid JSON: \(validJson)")*/
/*let data = jsonResponse.data(using: String.Encoding.utf8)
let jsonsdd = try JSONSerialization.jsonObject(with: data!, options: .allowFragments) as! [String:Any]
print(jsonsdd)*/
}
catch {
print(error)
}
}, failure: {(Error) in
print(Error.localizedDescription)
})
}.
I am trying to convert that json String to in JSON object so that I can parse the data.
I tried with swiftyJSON and JSONSerialization in my code that part is commented. but not able to convert it.
I guess I am missing small thing that I don't know.
