OSX/libsecurity_cryptkit/lib/NSDESCryptor.h

   1 /* Copyright (c) 1998,2011,2014 Apple Inc.  All Rights Reserved.
   2  *
   3  * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT
   4  * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE
   5  * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE, INC. AND THE
   6  * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE,
   7  * INC.  ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL
   8  * EXPOSE YOU TO LIABILITY.
   9  ***************************************************************************
  10  *
  11  * NSDESCryptor.h created by blaine on Thu 22-Feb-1996
  12  */
  13
  14 #import "NSCryptors.h"
  15
  16 /******  Digital Encryption Standard/Algorithm ********/
  17
  18 @interface NSDESCryptor : NSObject <NSCryptor>
  19 {
  20         void    *_priv;
  21 }
  22
  23 + cryptorWithState:(NSData *)s;
  24
  25 - initWithState:(NSData *)state;
  26      // designated initializer
  27      // 8 bytes with most sig bit ignored: 56 bits
  28
  29 - (void)setCryptorState:(NSData *)state;        // reset
  30 - (void)setBlockMode:(BOOL)yorn;                // default is chaining mode
  31
  32 /*
  33  * NSCryptor methods
  34  */
  35 - (NSData *)encryptData:(NSData *)input;
  36 - (NSData *)decryptData:(NSData *)input;
  37 - (unsigned)keyBitsize;
  38
  39 @end