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I referred C# code for byte array to string conversion in swift

System.Text.Encoding.UTF8.GetString(encryptedpassword)

I tried to convert byte array to string by using below few codes:

(A)

 let utf8 : [UInt8] = [231, 13, 38, 246, 234, 144, 148, 111, 174, 136, 15, 61, 200, 186, 215, 113,0]
 let str = NSString(bytes: utf8, length: utf8.count, encoding: String.Encoding.utf8.rawValue)
 print("str : \(str)")

result : getting nil value

(B)

 let datastring = NSString(bytes: chars, length: count, encoding: String.Encoding.utf8.rawValue)
 print("string byte data\(chars.map{"\($0)"}.reduce(""){$0+$1})")

result : 23113382462341441481111741361561200186215113 (I thought this is not ideal way)

I searched from last two days and tried other multiple ways but I missed something or doing some mistake . Please help me out resolved this issue.

Referred links: how-to-convert-uint8-byte-array-to-string-in-swift

how-to-convert-uint8-byte-array-to-string-in-swift 2

Improve this question
23
  • 1
    That's certainly not a readable UTF8 string? You might first decrypt it. Commented Apr 10, 2019 at 12:14
  • You are right UTF8 encoding not readable but in C# they pass byte array encryptedpassword into GetString() with encoding UTF8.Is there any alternate way in swift ? Commented Apr 10, 2019 at 12:23
  • 1
    As long as the string is not UTF8 compatible you have to deal with raw Data. You can convert [UInt8] to data simply with let data = Data(utf8) Commented Apr 10, 2019 at 12:28
  • 1
    No, you can't. Please read my comments carefully. Once again you can't because it's not an UTF8 string. Commented Apr 10, 2019 at 12:51
  • 1
    Yes, of course: Data(utf8).base64EncodedString() Commented Apr 10, 2019 at 13:05
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