tunnelkit/TunnelKit/Sources/Core/CryptoBox.h
2018-08-23 12:10:56 +02:00

44 lines
1.4 KiB
Objective-C

//
// CryptoBox.h
// TunnelKit
//
// Created by Davide De Rosa on 2/4/17.
// Copyright © 2018 London Trust Media. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "ZeroingData.h"
@protocol Encrypter;
@protocol Decrypter;
@interface CryptoBox : NSObject
+ (BOOL)preparePRNGWithSeed:(nonnull const uint8_t *)seed length:(NSInteger)length;
- (nonnull instancetype)initWithCipherAlgorithm:(nonnull NSString *)cipherAlgorithm
digestAlgorithm:(nullable NSString *)digestAlgorithm;
- (BOOL)configureWithCipherEncKey:(nonnull ZeroingData *)cipherEncKey
cipherDecKey:(nonnull ZeroingData *)cipherDecKey
hmacEncKey:(nonnull ZeroingData *)hmacEncKey
hmacDecKey:(nonnull ZeroingData *)hmacDecKey
error:(NSError **)error;
// WARNING: hmac must be able to hold HMAC result
+ (BOOL)hmacWithDigestName:(nonnull NSString *)digestName
secret:(nonnull const uint8_t *)secret
secretLength:(NSInteger)secretLength
data:(nonnull const uint8_t *)data
dataLength:(NSInteger)dataLength
hmac:(nonnull uint8_t *)hmac
hmacLength:(nonnull NSInteger *)hmacLength
error:(NSError **)error;
// encrypt/decrypt are mutually thread-safe
- (nonnull id<Encrypter>)encrypter;
- (nonnull id<Decrypter>)decrypter;
@end