Objective-C

HMAC SHA-1 to Match RFC 2022 Test Vectors

See more Encryption Examples

Demonstrates using Chilkat in _LANGUAGE_ to computer HMAC SHA-1 message authentication codes to match the test vectors given by RFC 2202. Objective-C

#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];

//  The output will be Hex, so set the EncodingMode:
crypt.EncodingMode = @"hex";

//  Set the hash algorithm:
//  Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
crypt.HashAlgorithm = @"sha-1";
crypt.MacAlgorithm = @"hmac";

NSString *mac = 0;

//  Set the HMAC key:
[crypt SetMacKeyEncoded: @"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b" encoding: @"hex"];
mac = [crypt MacStringENC: @"Hi There"];
NSLog(@"%@",mac);

[crypt SetMacKeyEncoded: @"Jefe" encoding: @"ansi"];
mac = [crypt MacStringENC: @"what do ya want for nothing?"];
NSLog(@"%@",mac);