(Objective-C) Re-Encode (How to convert encodings)

Demonstrates how to convert a string from one encoding to another.

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

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

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

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

// Here are some bytes as a hex string
NSString *hex = @"4142434445462140232425";

// The ReEncode method converts a string from one encoding to another.
// Valid encodings are "url", "base64", "qp", "hex", "modbase64", "base64url", "base32", "base58",
// and any of the encodings listed here:  http://cknotes.com/chilkat-binary-encoding-list

// Convert from hex to base64
NSString *b64 = [crypt ReEncode: hex fromEncoding: @"hex" toEncoding: @"base64"];
NSLog(@"%@%@",@"base64: ",b64);

// Convert from base64 to base32
NSString *b32 = [crypt ReEncode: b64 fromEncoding: @"base64" toEncoding: @"base32"];
NSLog(@"%@%@",@"base32: ",b32);

// Convert from base32 back to hex
hex = [crypt ReEncode: b32 fromEncoding: @"base32" toEncoding: @"hex"];
NSLog(@"%@%@",@"hex: ",hex);