Objective-C

Set the JWS Payload from BinData

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetPayloadBd, which sets the payload to be signed from the binary bytes in a BinData.

Background. JWS (JSON Web Signature) integrity-protects a payload with a signature or MAC. The header alg names the algorithm; this example uses HMAC-SHA256 (HS256) with a symmetric MAC key.

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Objective-C

#import <CkoJws.h>
#import <CkoBinData.h>

BOOL success = NO;

CkoJws *jws = [[CkoJws alloc] init];

//  Set the payload from the binary bytes in a BinData.
CkoBinData *bdPayload = [[CkoBinData alloc] init];
[bdPayload AppendString: @"Binary content to sign." charset: @"utf-8"];

success = [jws SetPayloadBd: bdPayload];
if (success == NO) {
    NSLog(@"%@",jws.LastErrorText);
    return;
}

NSLog(@"%@",@"Payload set.");