Spracherkennung für: .m vermutete Sprache: Abap {ABAP[55] Delphi[54] Lisp[52]} [Methode: maximale Elemente, drei Dimensionen]
#import "NonceHasher.h"
#import "CryptoUtils.h"
#ifdef DEBUG
static const DDLogLevel ddLogLevel = DDLogLevelVerbose;
#else
static const DDLogLevel ddLogLevel = DDLogLevelNotice;
#endif
@implementation NonceHasher
+ (NSData *)hashedNonce:(NSData *)nonce myIdentity:(nullable NSString *)myIdentity {
/* Hash nonce with HMAC-SHA256 using the identity as the key if available.
This serves to make it impossible to correlate the nonce DBs of users to determine whether they have been communicating. */
NSData *identity = [myIdentity dataUsingEncoding:NSASCIIStringEncoding];
if (identity == nil) {
// This should never be called
DDLogError(@"Nonces should only be processed if my identity exists");
NSAssert(false, @"Nonces should only be processed if my identity exists");
return nil;
} else {
return [CryptoUtils hmacSha256ForData:nonce key:identity];
}
}
@end
[Dauer der Verarbeitung: 0.9 Sekunden]