Objective-C

Example: Crypt2.GenRandomBytesENC method

Shows how to use the GenRandomBytesENC method to generate a specified number of random bytes and return them as a binary encoded string, such as in base64 or hex format. Objective-C

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

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

// Example of a some of the binary encodings supported by Chilkat.

// Internally uses the Fortuna cryptographically secure random number generation algorithm
// auto-seeded from a secure source of entropy that depends on the OS.

crypt.EncodingMode = @"hex";
NSString *s = [crypt GenRandomBytesENC: [NSNumber numberWithInt: 8]];
NSLog(@"%@%@",@"Uppercase Hex: ",s);

crypt.EncodingMode = @"hex_lower";
s = [crypt GenRandomBytesENC: [NSNumber numberWithInt: 8]];
NSLog(@"%@%@",@"Lowercase Hex: ",s);

crypt.EncodingMode = @"base64";
s = [crypt GenRandomBytesENC: [NSNumber numberWithInt: 8]];
NSLog(@"%@%@",@"Base64: ",s);

crypt.EncodingMode = @"base64url";
s = [crypt GenRandomBytesENC: [NSNumber numberWithInt: 8]];
NSLog(@"%@%@",@"Base64Url: ",s);

crypt.EncodingMode = @"base58";
s = [crypt GenRandomBytesENC: [NSNumber numberWithInt: 8]];
NSLog(@"%@%@",@"Base58: ",s);

crypt.EncodingMode = @"base32";
s = [crypt GenRandomBytesENC: [NSNumber numberWithInt: 8]];
NSLog(@"%@%@",@"Base32: ",s);

crypt.EncodingMode = @"decList";
s = [crypt GenRandomBytesENC: [NSNumber numberWithInt: 8]];
NSLog(@"%@%@",@"Decimal List: ",s);

// Sample Output:

// Uppercase Hex: 1BA0E87915C3B429
// Lowercase Hex: 1e1638a1c7996c58
// Base64: 1lV0I/su5lg=
// Base64Url: Zq7DU0nukLk
// Base58: foUVWUjAT6e
// Base32: LHV5RV4HRCLW2===
// Decimal List: 168,55,214,82,93,154,191,164