source: tools/traceanon/rijndael.h @ 3ed9a80

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivegetfragoffhelplibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 3ed9a80 was 853603a, checked in by Perry Lorier <perry@…>, 16 years ago

Migrate tools to the new API

  • Property mode set to 100644
File size: 5.5 KB
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1#ifndef _RIJNDAEL_H_
2#define _RIJNDAEL_H_
3
4/* $Id$
5//
6// File : rijndael.h
7// Creation date : Sun Nov 5 2000 03:21:05 CEST
8// Author : Szymon Stefanek (stefanek@tin.it)
9//
10// Another implementation of the Rijndael cipher.
11// This is intended to be an easily usable library file.
12// This code is public domain.
13// Based on the Vincent Rijmen and K.U.Leuven implementation 2.4.
14*/
15
16/*
17// Original Copyright notice:
18//
19//    rijndael-alg-fst.c   v2.4   April '2000
20//    rijndael-alg-fst.h
21//    rijndael-api-fst.c
22//    rijndael-api-fst.h
23//
24//    Optimised ANSI C code
25//
26//    authors: v1.0: Antoon Bosselaers
27//             v2.0: Vincent Rijmen, K.U.Leuven
28//             v2.3: Paulo Barreto
29//             v2.4: Vincent Rijmen, K.U.Leuven
30//
31//    This code is placed in the public domain.
32*/
33
34/*
35// This implementation works on 128 , 192 , 256 bit keys
36// and on 128 bit blocks
37*/
38
39/*
40// Example of usage:
41//
42//  // Input data
43//  unsigned char key[32];                       // The key
44//  initializeYour256BitKey();                   // Obviously initialized with sth
45//  const unsigned char * plainText = getYourPlainText(); // Your plain text
46//  int plainTextLen = strlen(plainText);        // Plain text length
47//
48//  // Encrypting
49//  Rijndael rin;
50//  unsigned char output[plainTextLen + 16];
51//
52//  rin.init(Rijndael::CBC,Rijndael::Encrypt,key,Rijndael::Key32Bytes);
53//  // It is a good idea to check the error code
54//  int len = rin.padEncrypt(plainText,len,output);
55//  if(len >= 0)useYourEncryptedText();
56//  else encryptError(len);
57//
58//  // Decrypting: we can reuse the same object
59//  unsigned char output2[len];
60//  rin.init(Rijndael::CBC,Rijndael::Decrypt,key,Rijndael::Key32Bytes));
61//  len = rin.padDecrypt(output,len,output2);
62//  if(len >= 0)useYourDecryptedText();
63//  else decryptError(len);
64*/
65
66#define _MAX_KEY_COLUMNS (256/32)
67#define _MAX_ROUNDS      14
68#define MAX_IV_SIZE      16
69
70/* We assume that unsigned int is 32 bits long....  */
71typedef unsigned char  UINT8;
72typedef unsigned int   UINT32;
73typedef unsigned short UINT16;
74
75/* Error codes */
76#define RIJNDAEL_SUCCESS 0
77#define RIJNDAEL_UNSUPPORTED_MODE -1
78#define RIJNDAEL_UNSUPPORTED_DIRECTION -2
79#define RIJNDAEL_UNSUPPORTED_KEY_LENGTH -3
80#define RIJNDAEL_BAD_KEY -4
81#define RIJNDAEL_NOT_INITIALIZED -5
82#define RIJNDAEL_BAD_DIRECTION -6
83#define RIJNDAEL_CORRUPTED_DATA -7
84
85/*class Rijndael
86//{     
87//public:
88*/
89
90enum Direction_e { Encrypt , Decrypt };
91enum Mode_e { ECB , CBC , CFB1 };
92enum KeyLength_e { Key16Bytes , Key24Bytes , Key32Bytes };
93enum State_e { Valid , Invalid };
94
95typedef enum Mode_e Mode;
96typedef enum Direction_e Direction;
97typedef enum KeyLength_e KeyLength;
98typedef enum State_e State;
99
100/*
101// Creates a Rijndael cipher object
102// You have to call init() before you can encrypt or decrypt stuff
103//
104//      Rijndael();
105//      ~Rijndael();
106//protected:
107//      // Internal stuff
108
109//public:
110        //////////////////////////////////////////////////////////////////////////////////////////
111        // API
112        //////////////////////////////////////////////////////////////////////////////////////////
113
114        // init(): Initializes the crypt session
115        // Returns RIJNDAEL_SUCCESS or an error code
116        // mode      : Rijndael::ECB, Rijndael::CBC or Rijndael::CFB1
117        //             You have to use the same mode for encrypting and decrypting
118        // dir       : Rijndael::Encrypt or Rijndael::Decrypt
119        //             A cipher instance works only in one direction
120        //             (Well , it could be easily modified to work in both
121        //             directions with a single init() call, but it looks
122        //             useless to me...anyway , it is a matter of generating
123        //             two expanded keys)
124        // key       : array of unsigned octets , it can be 16 , 24 or 32 bytes long
125        //             this CAN be binary data (it is not expected to be null terminated)
126        // keyLen    : Rijndael::Key16Bytes , Rijndael::Key24Bytes or Rijndael::Key32Bytes
127        // initVector: initialization vector, you will usually use 0 here
128
129int rijndael_init(Mode mode, Direction dir, const UINT8 *key, KeyLength keyLen, UINT8 * initVector);
130
131  // Encrypts the input array (can be binary data)
132        // The input array length must be a multiple of 16 bytes, the remaining part
133        // is DISCARDED.
134        // so it actually encrypts inputLen / 128 blocks of input and puts it in outBuffer
135        // Input len is in BITS!
136        // outBuffer must be at least inputLen / 8 bytes long.
137        // Returns the encrypted buffer length in BITS or an error code < 0 in case of error
138int blockEncrypt(const UINT8 *input, int inputLen, UINT8 *outBuffer);
139        // Encrypts the input array (can be binary data)
140        // The input array can be any length , it is automatically padded on a 16 byte boundary.
141        // Input len is in BYTES!
142        // outBuffer must be at least (inputLen + 16) bytes long
143        // Returns the encrypted buffer length in BYTES or an error code < 0 in case of error
144int padEncrypt(const UINT8 *input, int inputOctets, UINT8 *outBuffer);
145        // Decrypts the input vector
146        // Input len is in BITS!
147        // outBuffer must be at least inputLen / 8 bytes long
148        // Returns the decrypted buffer length in BITS and an error code < 0 in case of error
149int blockDecrypt(const UINT8 *input, int inputLen, UINT8 *outBuffer);
150        // Decrypts the input vector
151        // Input len is in BYTES!
152        // outBuffer must be at least inputLen bytes long
153        // Returns the decrypted buffer length in BYTES and an error code < 0 in case of error
154int padDecrypt(const UINT8 *input, int inputOctets, UINT8 *outBuffer);
155//protected:
156void keySched(UINT8 key[_MAX_KEY_COLUMNS][4]);
157void keyEncToDec();
158void r_encrypt(const UINT8 a[16], UINT8 b[16]);
159void r_decrypt(const UINT8 a[16], UINT8 b[16]);
160//};
161*/
162       
163#endif /* _RIJNDAEL_H_ */
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