Encryption Error

[Gantaios]

Hi need to encrypt this string

NSString *dataString2 = @"eJDRqD_1ME0:APA91bFRfuy6Xk0GMVHtFLKjw5eZnqoGQ7wdTYjXdLGPqOVGuApv_eaZQzHQmqhqTKN70mspUt6BpZFFnCGn4j2y0Ew-eS1SnghLQZNxNAbh9LSgCjviWGe2wwCCW132jqW5E_aaxL5g";

    NSData *dataIn2 = [dataString2 dataUsingEncoding:NSUTF8StringEncoding];
    NSData *result2 = [BBAES encryptedDataFromData:dataIn2 IV:ivData key:symKey options:0]; // result = 16bytes
    NSData *hexaData2 = result2;
    NSString *DataHexadecimalString2 = [hexaData2 hexadecimalString];
    NSLog(@"Encrypted hexa  = %@", DataHexadecimalString2);

//output i am getting is
6bd95973e91de1330e3195098104116b0f888533bfeb0f20edcbcdf66a9e5d79676b8b33b62c470454003dc5013d92efb191b1b07e320b1cff59874007191d72be18e8b2784dcfc8c2960b59879b9c14c42421105ac356d5bccc7ee0f70122f8c2a47743984ba453a02b82b7ddd770fd5284483d3581c818076f9c87569345ab558c2e286ceb1388d6444042ecb10d0ccb294488ed51c86de20b85b076bb2d85

//expected Output is this
6bd95973e91de1330e3195098104116b0f888533bfeb0f20edcbcdf66a9e5d79676b8b33b62c470454003dc5013d92efb191b1b07e320b1cff59874007191d72be18e8b2784dcfc8c2960b59879b9c14c42421105ac356d5bccc7ee0f70122f8c2a47743984ba453a02b82b7ddd770fd5284483d3581c818076f9c87569345ab558c2e286ceb1388d6444042ecb10d0c46530088a27a522ba365d6942a83ac41

Don't know where i am don't know where am doing wrong can any one help me