Which type of encryption you have used in iOS App?

Ans : I have used trippleDES for passing data in request to server.

NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dicPostDict options:kNilOptions error:&error];

 NSString *strJsonData=[[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

 NSData *encryptedJsonString = [CommonMethods tripleDesEncryptString:strJsonData  key:@"2-055PL&okjnnhkey@inihgr" error:nil];
 NSString *strencryptedJsonString = [encryptedJsonString base64Encoding];