Sample code for 30+ languages & platforms
Objective-C

Example: Crypt2.SetEncodedIV method

Demonstrates how to call the SetEncodedIV method.

Chilkat Objective-C Downloads

Objective-C
#import <CkoCrypt2.h>

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

crypt.CryptAlgorithm = @"aes";
crypt.CipherMode = @"cbc";
crypt.KeyLength = [NSNumber numberWithInt:256];

//  Note: The lenght of the IV is equal to the block size of the symmetric encryption algorithm.
//  The block size for AES is 16 bytes.  Therefore, the IV is 16 bytes regardless of the encryption strenght (128-bit, 256-bit, etc.)
[crypt SetEncodedIV: @"000102030405060708090A0B0C0D0E0F" encoding: @"hex"];

//  ...
//  ...