projects / apple / security.git / blame
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| b1ab9ed8 A |
1 | /* Copyright (c) 1998 Apple Computer, 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 COMPUTER, INC. AND THE | |
| 6 | * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE COMPUTER, | |
| 7 | * INC. ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL | |
| 8 | * EXPOSE YOU TO LIABILITY. | |
| 9 | *************************************************************************** | |
| 10 | * | |
| 11 | * DES.h - raw DES encryption engine interface | |
| 12 | * | |
| 13 | * Revision History | |
| 14 | * ---------------- | |
| 15 | * 31 Mar 97 Doug Mitchell at Apple | |
| 16 | * Put per-instance data in struct _desInst | |
| 17 | * 21 Aug 96 Doug Mitchell at NeXT | |
| 18 | * Broke out from NSDESCryptor.m | |
| 19 | * 22 Feb 96 Blaine Garst at NeXT | |
| 20 | * Created. | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef _CK_DES_H_ | |
| 24 | #define _CK_DES_H_ | |
| 25 | ||
| 26 | #include "ckconfig.h" | |
| 27 | ||
| 28 | #if CRYPTKIT_SYMMETRIC_ENABLE | |
| 29 | ||
| 30 | #ifdef __cplusplus | |
| 31 | extern "C" { | |
| 32 | #endif | |
| 33 | ||
| 34 | #define DES_BLOCK_SIZE_BYTES 8 /* in bytes */ | |
| 35 | #define DES_KEY_SIZE_BITS 56 /* effective key size in bits */ | |
| 36 | #define DES_KEY_SIZE_BITS_EXTERNAL 64 /* clients actually pass in this much */ | |
| 37 | #define DES_KEY_SIZE_BYTES_EXTERNAL (DES_KEY_SIZE_BITS_EXTERNAL / 8) | |
| 38 | ||
| 39 | #define DES_MODE_STD 0 /* standard Data Encryption Algorithm */ | |
| 40 | #define DES_MODE_FAST 1 /* DEA without initial and final */ | |
| 41 | /* permutations for speed */ | |
| 42 | #define DES_MODE_128 2 /* DEA without permutations and with */ | |
| 43 | /* 128-byte key (completely independent */ | |
| 44 | /* subkeys for each round) */ | |
| 45 | ||
| 46 | /* | |
| 47 | * Per-instance data. | |
| 48 | */ | |
| 49 | struct _desInst { | |
| 50 | /* 8 16-bit subkeys for each of 16 rounds, initialized by setkey() | |
| 51 | */ | |
| 52 | unsigned char kn[16][8]; | |
| 53 | int desmode; | |
| 54 | }; | |
| 55 | ||
| 56 | typedef struct _desInst *desInst; | |
| 57 | ||
| 58 | int desinit(desInst dinst, int mode); | |
| 59 | void dessetkey(desInst dinst, char *key); | |
| 60 | void endes(desInst dinst, char *block); | |
| 61 | void dedes(desInst dinst, char *block); | |
| 62 | void desdone(desInst dinst); | |
| 63 | ||
| 64 | #ifdef __cplusplus | |
| 65 | } | |
| 66 | #endif | |
| 67 | ||
| 68 | #endif /* CRYPTKIT_SYMMETRIC_ENABLE */ | |
| 69 | ||
| 70 | #endif /*_CK_DES_H_*/ |