Objective-C

Quoted-Printable Encode/Decode a String

See more Encryption Examples

_LANGUAGE_ example to quoted-printable encode and decode a string. Objective-C

#import <CkoCrypt2.h>
#import <NSString.h>

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

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

//  Here's a string in Icelandic using non us-ascii chars:
NSString *s = @"Ég get etið gler án þess að meiða mig.";

crypt.CryptAlgorithm = @"none";
crypt.EncodingMode = @"quoted-printable";

//  Quoted-printable encode/decode the iso-8859-1
//  representation of the string.  Notice how each
//  Icelandic char is represented by 1 byte:
crypt.Charset = @"iso-8859-1";
NSString *qp = [crypt EncryptStringENC: s];
NSLog(@"%@",@"iso-8859-1:");
NSLog(@"%@",qp);
NSString *decoded = [crypt DecryptStringENC: qp];
NSLog(@"%@",decoded);

//  Now do the same using utf-8. Notice how each
//  Icelandic char is represented by 2 bytes in utf-8:
crypt.Charset = @"utf-8";
NSString *qp = [crypt EncryptStringENC: s];
NSLog(@"%@",@"utf-8:");
NSLog(@"%@",qp);
NSString *decoded = [crypt DecryptStringENC: qp];
NSLog(@"%@",decoded);