IOS Failes to decrypt VB.net String

[mld54444]

Dear
first i would like to than you about your great cryptlib

But i'm using it in android and swift

in android i managed to decrypt the string returned from the server successfully
but in IOS it keeps giving me errors or strange output data like :

ÄľIßþÑÔ×Q0•‹z•lz·'ù\u{0E} ¤*]9\u{15}ï!�EF\nëåt<NxýaI\u{1D}‘\u{03}� N3\u{07}½lô·÷=\u{1D}?ì\u{05}ÂòÅ·#Ñèâ\u{05}’=0Ñ<‰á\u{1D}\t\u{1E}!»>k/t\rÄ\u{07}K{-êg&ZÓ?\0o�¸\u{06}ˆ)ŸÝSX7ÜF\u{0F}]€[ïÎX-‰TÌœâ]¿ü.‚\nS\u{19}ÂN3!\u{15}\u{10}К¥ÍQUö„›'Ï~N\u{0E}€‚F;»ª:sÿÒZ°óD:¿\u{19}\u{1A}†ŽvL

here is an example to try to decrypt

IV = 509+QAilldg3dj3p
key string "sha256" = 2c8bc04829771e56a064e192425f0f98
Encrypted text =
LbA/hK1DfsyqvwPKuyvKH90cFh6u6WfUBvFgv7XLtjNB4s++iJFSdLbAAIYLsFwh4HpZLzWMA5VCZTNwPUztvflIdTfyZ99y9B6Il+KHUKWNsgSlw6WgPw9ZGy+3zpZkaYmI8KkJj9hudeiCODxknXIJ26hkfjbAl9BRJg2GHyNKN1or+DR82Gxtfx6srbHS1jV/vItcZEOKRdaWzdRhGZ1HwYOD5cVg6xdt8Gts3dU=

Can you please help me because i'm frustrated and i failed to decode it using all samples in we

this string is returned from VB.net service
Regards

[tarakinsuide]

I'm facing similar issues. Did you find the solution to this?

[skavinvarnan]

@tarakinsuide processed in VB.net?

[tarakinsuide]

Hi,

Sorry, it's not about .NET

I'm encrypting on NodeJS and trying to decrypt on iOS using the examples given in your repo.
But, the output is jargon strings.

I tried few solutions given in #29 but it didn't work for me.

[skavinvarnan]

@tarakinsuide the library has been updated to support iOS 13. Start fresh and try this example. https://github.com/skavinvarnan/Cross-Platform-AES#javascript--nodejs--web

[reunitedaditya]

Hey i am using the updated iOS13 Version of the library and the decrypt function is still not working.

  let plainText = "this is my plain text"
    let key = "PBKDF2WithHmacSHA1"
    let iv = "8119745113154120"

    let cryptLib = CryptLib()

    let cipherText = cryptLib.encryptPlainText(plainText, key: key, iv: iv)
    print("cipherText \(cipherText! as String)")

    let decryptedText = cryptLib.decryptCipherText(cipherText!, key: key, iv: iv)
    
    print(decryptedText)

This is the output:

cipherText fcb27GSZEKusGzvEMwZuH9rFOwlfGWleDWQC4EM9x68=
decryptedText }5-sn9>)>yiu;�/) text

Please help

/// UPDATE////

Guys i found the issue 👍

replace decrypt cipher text function with this

• (NSString *) decryptCipherText:(NSString *)ciperText key:(NSString *)key iv:(NSString *)iv {
  return [[NSString alloc] initWithData:[[CryptLib alloc] decrypt:[[NSData alloc] initWithBase64EncodedString:ciperText options:NSDataBase64DecodingIgnoreUnknownCharacters] key:[[CryptLib alloc] sha256:key length:32] iv: iv] encoding:NSUTF8StringEncoding];
  }