Objective-C

Load EC Public Key from X,Y Values (easier)

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Demonstrates how to load an ECDSA public key from X and Y values using the LoadEcdsa method introduced in Chilkat v9.5.0.85. Objective-C

#import <NSString.h>
#import <CkoPublicKey.h>

BOOL success = NO;

// Note: This example requires Chilkat v9.5.0.85 or greater.

// We have the following x and y values in hex (for an EC point on the P-256 curve).
NSString *x = @"1ccbe91c075fc7f4f033bfa248db8fccd3565de94bbfb12f3c59ff46c271bf83";
NSString *y = @"ce4014c68811f9a21a1fdb2c0e6113e06db7ca93b7404e78dc7ccd5ca89a4ca9";

CkoPublicKey *pubkey = [[CkoPublicKey alloc] init];
success = [pubkey LoadEcdsa: @"secp256r1" Qx: x Qy: y];
if (success == NO) {
    NSLog(@"%@",pubkey.LastErrorText);
    return;
}

NSLog(@"%@",@"Success.");