Objective-C

IMAP Login Secure

Demonstrates how to use the LoginSecure method introduced in Chilkat v9.5.0.71. Objective-C

#import <CkoImap.h>
#import <CkoJsonObject.h>
#import <CkoCrypt2.h>
#import <CkoSecureString.h>

BOOL success = NO;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

CkoImap *imap = [[CkoImap alloc] init];

//  Connect to an IMAP server..
imap.Ssl = YES;
imap.Port = [NSNumber numberWithInt:993];
success = [imap Connect: @"imap.mail.me.com"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

//  Imagine we've previously saved our encrypted login and password within a JSON config file
//  that contains this:

//  {
//    "imap_login": "fLkxsfnVaIWLiL/R32jo6g==",
//    "imap_password": "/NbaFBoCftBLFf8WBU9Xtw=="
//  }

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json LoadFile: @"qa_data/passwords/imap.json"];

CkoCrypt2 *crypt = [[CkoCrypt2 alloc] init];

//  These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
crypt.CryptAlgorithm = @"aes";
crypt.CipherMode = @"cbc";
crypt.KeyLength = [NSNumber numberWithInt:128];
[crypt SetEncodedKey: @"000102030405060708090A0B0C0D0E0F" encoding: @"hex"];
[crypt SetEncodedIV: @"000102030405060708090A0B0C0D0E0F" encoding: @"hex"];
crypt.EncodingMode = @"base64";

CkoSecureString *ssLogin = [[CkoSecureString alloc] init];
CkoSecureString *ssPassword = [[CkoSecureString alloc] init];

//  Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
//  a randomly generated session key.)
[crypt DecryptSecureENC: [json StringOf: @"imap_login"] secureStr: ssLogin];
[crypt DecryptSecureENC: [json StringOf: @"imap_password"] secureStr: ssPassword];

//  Pass the credentials to the LoginSecure method:
success = [imap LoginSecure: ssLogin password: ssPassword];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

//  ...

[imap Disconnect];