2018-08-23 08:19:25 +00:00
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//
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// CryptoBox.h
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2018-08-23 10:07:55 +00:00
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// TunnelKit
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2018-08-23 08:19:25 +00:00
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//
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// Created by Davide De Rosa on 2/4/17.
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// Copyright © 2018 London Trust Media. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#import "ZeroingData.h"
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@protocol Encrypter;
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@protocol Decrypter;
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@interface CryptoBox : NSObject
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+ (BOOL)preparePRNGWithSeed:(nonnull const uint8_t *)seed length:(NSInteger)length;
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- (nonnull instancetype)initWithCipherAlgorithm:(nonnull NSString *)cipherAlgorithm
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digestAlgorithm:(nullable NSString *)digestAlgorithm;
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- (BOOL)configureWithCipherEncKey:(nonnull ZeroingData *)cipherEncKey
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cipherDecKey:(nonnull ZeroingData *)cipherDecKey
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hmacEncKey:(nonnull ZeroingData *)hmacEncKey
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hmacDecKey:(nonnull ZeroingData *)hmacDecKey
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error:(NSError **)error;
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// WARNING: hmac must be able to hold HMAC result
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+ (BOOL)hmacWithDigestName:(nonnull NSString *)digestName
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secret:(nonnull const uint8_t *)secret
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secretLength:(NSInteger)secretLength
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data:(nonnull const uint8_t *)data
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dataLength:(NSInteger)dataLength
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hmac:(nonnull uint8_t *)hmac
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hmacLength:(nonnull NSInteger *)hmacLength
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error:(NSError **)error;
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// encrypt/decrypt are mutually thread-safe
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- (nonnull id<Encrypter>)encrypter;
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- (nonnull id<Decrypter>)decrypter;
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@end
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