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author | jsing <> | 2015-02-10 11:47:00 +0000 |
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committer | jsing <> | 2015-02-10 11:47:00 +0000 |
commit | b76138809e995e34fc681e084f108b341f20c1e2 (patch) | |
tree | 34cea5f7635ebb8f1c9b8bed28b0bab86579ffdf | |
parent | 3916ce5883a699ea542f26d548cde6c671e92add (diff) | |
download | openbsd-b76138809e995e34fc681e084f108b341f20c1e2.tar.gz openbsd-b76138809e995e34fc681e084f108b341f20c1e2.tar.bz2 openbsd-b76138809e995e34fc681e084f108b341f20c1e2.zip |
Remove old interesting but not useful content.
ok miod@
-rw-r--r-- | src/lib/libcrypto/rc4/rrc4.doc | 278 | ||||
-rw-r--r-- | src/lib/libssl/src/crypto/rc4/rrc4.doc | 278 |
2 files changed, 0 insertions, 556 deletions
diff --git a/src/lib/libcrypto/rc4/rrc4.doc b/src/lib/libcrypto/rc4/rrc4.doc deleted file mode 100644 index 2f9a953c12..0000000000 --- a/src/lib/libcrypto/rc4/rrc4.doc +++ /dev/null | |||
@@ -1,278 +0,0 @@ | |||
1 | Newsgroups: sci.crypt,alt.security,comp.security.misc,alt.privacy | ||
2 | Path: ghost.dsi.unimi.it!univ-lyon1.fr!jussieu.fr!zaphod.crihan.fr!warwick!clyde.open.ac.uk!strath-cs!bnr.co.uk!bt!pipex!howland.reston.ans.net!europa.eng.gtefsd.com!MathWorks.Com!yeshua.marcam.com!charnel.ecst.csuchico.edu!csusac!csus.edu!netcom.com!sterndark | ||
3 | From: sterndark@netcom.com (David Sterndark) | ||
4 | Subject: RC4 Algorithm revealed. | ||
5 | Message-ID: <sternCvKL4B.Hyy@netcom.com> | ||
6 | Sender: sterndark@netcom.com | ||
7 | Organization: NETCOM On-line Communication Services (408 261-4700 guest) | ||
8 | X-Newsreader: TIN [version 1.2 PL1] | ||
9 | Date: Wed, 14 Sep 1994 06:35:31 GMT | ||
10 | Lines: 263 | ||
11 | Xref: ghost.dsi.unimi.it sci.crypt:27332 alt.security:14732 comp.security.misc:11701 alt.privacy:16026 | ||
12 | |||
13 | I am shocked, shocked, I tell you, shocked, to discover | ||
14 | that the cypherpunks have illegaly and criminally revealed | ||
15 | a crucial RSA trade secret and harmed the security of | ||
16 | America by reverse engineering the RC4 algorithm and | ||
17 | publishing it to the world. | ||
18 | |||
19 | On Saturday morning an anonymous cypherpunk wrote: | ||
20 | |||
21 | |||
22 | SUBJECT: RC4 Source Code | ||
23 | |||
24 | |||
25 | I've tested this. It is compatible with the RC4 object module | ||
26 | that comes in the various RSA toolkits. | ||
27 | |||
28 | /* rc4.h */ | ||
29 | typedef struct rc4_key | ||
30 | { | ||
31 | unsigned char state[256]; | ||
32 | unsigned char x; | ||
33 | unsigned char y; | ||
34 | } rc4_key; | ||
35 | void prepare_key(unsigned char *key_data_ptr,int key_data_len, | ||
36 | rc4_key *key); | ||
37 | void rc4(unsigned char *buffer_ptr,int buffer_len,rc4_key * key); | ||
38 | |||
39 | |||
40 | /*rc4.c */ | ||
41 | #include "rc4.h" | ||
42 | static void swap_byte(unsigned char *a, unsigned char *b); | ||
43 | void prepare_key(unsigned char *key_data_ptr, int key_data_len, | ||
44 | rc4_key *key) | ||
45 | { | ||
46 | unsigned char swapByte; | ||
47 | unsigned char index1; | ||
48 | unsigned char index2; | ||
49 | unsigned char* state; | ||
50 | short counter; | ||
51 | |||
52 | state = &key->state[0]; | ||
53 | for(counter = 0; counter < 256; counter++) | ||
54 | state[counter] = counter; | ||
55 | key->x = 0; | ||
56 | key->y = 0; | ||
57 | index1 = 0; | ||
58 | index2 = 0; | ||
59 | for(counter = 0; counter < 256; counter++) | ||
60 | { | ||
61 | index2 = (key_data_ptr[index1] + state[counter] + | ||
62 | index2) % 256; | ||
63 | swap_byte(&state[counter], &state[index2]); | ||
64 | |||
65 | index1 = (index1 + 1) % key_data_len; | ||
66 | } | ||
67 | } | ||
68 | |||
69 | void rc4(unsigned char *buffer_ptr, int buffer_len, rc4_key *key) | ||
70 | { | ||
71 | unsigned char x; | ||
72 | unsigned char y; | ||
73 | unsigned char* state; | ||
74 | unsigned char xorIndex; | ||
75 | short counter; | ||
76 | |||
77 | x = key->x; | ||
78 | y = key->y; | ||
79 | |||
80 | state = &key->state[0]; | ||
81 | for(counter = 0; counter < buffer_len; counter ++) | ||
82 | { | ||
83 | x = (x + 1) % 256; | ||
84 | y = (state[x] + y) % 256; | ||
85 | swap_byte(&state[x], &state[y]); | ||
86 | |||
87 | xorIndex = (state[x] + state[y]) % 256; | ||
88 | |||
89 | buffer_ptr[counter] ^= state[xorIndex]; | ||
90 | } | ||
91 | key->x = x; | ||
92 | key->y = y; | ||
93 | } | ||
94 | |||
95 | static void swap_byte(unsigned char *a, unsigned char *b) | ||
96 | { | ||
97 | unsigned char swapByte; | ||
98 | |||
99 | swapByte = *a; | ||
100 | *a = *b; | ||
101 | *b = swapByte; | ||
102 | } | ||
103 | |||
104 | |||
105 | |||
106 | Another cypherpunk, this one not anonymous, tested the | ||
107 | output from this algorithm against the output from | ||
108 | official RC4 object code | ||
109 | |||
110 | |||
111 | Date: Tue, 13 Sep 94 18:37:56 PDT | ||
112 | From: ekr@eit.COM (Eric Rescorla) | ||
113 | Message-Id: <9409140137.AA17743@eitech.eit.com> | ||
114 | Subject: RC4 compatibility testing | ||
115 | Cc: cypherpunks@toad.com | ||
116 | |||
117 | One data point: | ||
118 | |||
119 | I can't say anything about the internals of RC4 versus the | ||
120 | algorithm that Bill Sommerfeld is rightly calling 'Alleged RC4', | ||
121 | since I don't know anything about RC4's internals. | ||
122 | |||
123 | However, I do have a (legitimately acquired) copy of BSAFE2 and | ||
124 | so I'm able to compare the output of this algorithm to the output | ||
125 | of genuine RC4 as found in BSAFE. I chose a set of test vectors | ||
126 | and ran them through both algorithms. The algorithms appear to | ||
127 | give identical results, at least with these key/plaintext pairs. | ||
128 | |||
129 | I note that this is the algorithm _without_ Hal Finney's | ||
130 | proposed modification | ||
131 | |||
132 | (see <199409130605.XAA24133@jobe.shell.portal.com>). | ||
133 | |||
134 | The vectors I used (together with the ciphertext they produce) | ||
135 | follow at the end of this message. | ||
136 | |||
137 | -Ekr | ||
138 | |||
139 | Disclaimer: This posting does not reflect the opinions of EIT. | ||
140 | |||
141 | --------------------results follow-------------- | ||
142 | Test vector 0 | ||
143 | Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
144 | Input: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
145 | 0 Output: 0x75 0xb7 0x87 0x80 0x99 0xe0 0xc5 0x96 | ||
146 | |||
147 | Test vector 1 | ||
148 | Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
149 | Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
150 | 0 Output: 0x74 0x94 0xc2 0xe7 0x10 0x4b 0x08 0x79 | ||
151 | |||
152 | Test vector 2 | ||
153 | Key: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
154 | Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
155 | 0 Output: 0xde 0x18 0x89 0x41 0xa3 0x37 0x5d 0x3a | ||
156 | |||
157 | Test vector 3 | ||
158 | Key: 0xef 0x01 0x23 0x45 | ||
159 | Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
160 | 0 Output: 0xd6 0xa1 0x41 0xa7 0xec 0x3c 0x38 0xdf 0xbd 0x61 | ||
161 | |||
162 | Test vector 4 | ||
163 | Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
164 | Input: 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
165 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
166 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
167 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
168 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
169 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
170 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
171 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
172 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
173 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
174 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
175 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
176 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
177 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
178 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
179 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
180 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
181 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
182 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
183 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
184 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
185 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
186 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
187 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
188 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
189 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
190 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
191 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
192 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
193 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
194 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
195 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
196 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
197 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
198 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
199 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
200 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
201 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
202 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
203 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
204 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
205 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
206 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
207 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
208 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
209 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
210 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
211 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
212 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
213 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
214 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
215 | 0x01 | ||
216 | 0 Output: 0x75 0x95 0xc3 0xe6 0x11 0x4a 0x09 0x78 0x0c 0x4a 0xd4 | ||
217 | 0x52 0x33 0x8e 0x1f 0xfd 0x9a 0x1b 0xe9 0x49 0x8f | ||
218 | 0x81 0x3d 0x76 0x53 0x34 0x49 0xb6 0x77 0x8d 0xca | ||
219 | 0xd8 0xc7 0x8a 0x8d 0x2b 0xa9 0xac 0x66 0x08 0x5d | ||
220 | 0x0e 0x53 0xd5 0x9c 0x26 0xc2 0xd1 0xc4 0x90 0xc1 | ||
221 | 0xeb 0xbe 0x0c 0xe6 0x6d 0x1b 0x6b 0x1b 0x13 0xb6 | ||
222 | 0xb9 0x19 0xb8 0x47 0xc2 0x5a 0x91 0x44 0x7a 0x95 | ||
223 | 0xe7 0x5e 0x4e 0xf1 0x67 0x79 0xcd 0xe8 0xbf 0x0a | ||
224 | 0x95 0x85 0x0e 0x32 0xaf 0x96 0x89 0x44 0x4f 0xd3 | ||
225 | 0x77 0x10 0x8f 0x98 0xfd 0xcb 0xd4 0xe7 0x26 0x56 | ||
226 | 0x75 0x00 0x99 0x0b 0xcc 0x7e 0x0c 0xa3 0xc4 0xaa | ||
227 | 0xa3 0x04 0xa3 0x87 0xd2 0x0f 0x3b 0x8f 0xbb 0xcd | ||
228 | 0x42 0xa1 0xbd 0x31 0x1d 0x7a 0x43 0x03 0xdd 0xa5 | ||
229 | 0xab 0x07 0x88 0x96 0xae 0x80 0xc1 0x8b 0x0a 0xf6 | ||
230 | 0x6d 0xff 0x31 0x96 0x16 0xeb 0x78 0x4e 0x49 0x5a | ||
231 | 0xd2 0xce 0x90 0xd7 0xf7 0x72 0xa8 0x17 0x47 0xb6 | ||
232 | 0x5f 0x62 0x09 0x3b 0x1e 0x0d 0xb9 0xe5 0xba 0x53 | ||
233 | 0x2f 0xaf 0xec 0x47 0x50 0x83 0x23 0xe6 0x71 0x32 | ||
234 | 0x7d 0xf9 0x44 0x44 0x32 0xcb 0x73 0x67 0xce 0xc8 | ||
235 | 0x2f 0x5d 0x44 0xc0 0xd0 0x0b 0x67 0xd6 0x50 0xa0 | ||
236 | 0x75 0xcd 0x4b 0x70 0xde 0xdd 0x77 0xeb 0x9b 0x10 | ||
237 | 0x23 0x1b 0x6b 0x5b 0x74 0x13 0x47 0x39 0x6d 0x62 | ||
238 | 0x89 0x74 0x21 0xd4 0x3d 0xf9 0xb4 0x2e 0x44 0x6e | ||
239 | 0x35 0x8e 0x9c 0x11 0xa9 0xb2 0x18 0x4e 0xcb 0xef | ||
240 | 0x0c 0xd8 0xe7 0xa8 0x77 0xef 0x96 0x8f 0x13 0x90 | ||
241 | 0xec 0x9b 0x3d 0x35 0xa5 0x58 0x5c 0xb0 0x09 0x29 | ||
242 | 0x0e 0x2f 0xcd 0xe7 0xb5 0xec 0x66 0xd9 0x08 0x4b | ||
243 | 0xe4 0x40 0x55 0xa6 0x19 0xd9 0xdd 0x7f 0xc3 0x16 | ||
244 | 0x6f 0x94 0x87 0xf7 0xcb 0x27 0x29 0x12 0x42 0x64 | ||
245 | 0x45 0x99 0x85 0x14 0xc1 0x5d 0x53 0xa1 0x8c 0x86 | ||
246 | 0x4c 0xe3 0xa2 0xb7 0x55 0x57 0x93 0x98 0x81 0x26 | ||
247 | 0x52 0x0e 0xac 0xf2 0xe3 0x06 0x6e 0x23 0x0c 0x91 | ||
248 | 0xbe 0xe4 0xdd 0x53 0x04 0xf5 0xfd 0x04 0x05 0xb3 | ||
249 | 0x5b 0xd9 0x9c 0x73 0x13 0x5d 0x3d 0x9b 0xc3 0x35 | ||
250 | 0xee 0x04 0x9e 0xf6 0x9b 0x38 0x67 0xbf 0x2d 0x7b | ||
251 | 0xd1 0xea 0xa5 0x95 0xd8 0xbf 0xc0 0x06 0x6f 0xf8 | ||
252 | 0xd3 0x15 0x09 0xeb 0x0c 0x6c 0xaa 0x00 0x6c 0x80 | ||
253 | 0x7a 0x62 0x3e 0xf8 0x4c 0x3d 0x33 0xc1 0x95 0xd2 | ||
254 | 0x3e 0xe3 0x20 0xc4 0x0d 0xe0 0x55 0x81 0x57 0xc8 | ||
255 | 0x22 0xd4 0xb8 0xc5 0x69 0xd8 0x49 0xae 0xd5 0x9d | ||
256 | 0x4e 0x0f 0xd7 0xf3 0x79 0x58 0x6b 0x4b 0x7f 0xf6 | ||
257 | 0x84 0xed 0x6a 0x18 0x9f 0x74 0x86 0xd4 0x9b 0x9c | ||
258 | 0x4b 0xad 0x9b 0xa2 0x4b 0x96 0xab 0xf9 0x24 0x37 | ||
259 | 0x2c 0x8a 0x8f 0xff 0xb1 0x0d 0x55 0x35 0x49 0x00 | ||
260 | 0xa7 0x7a 0x3d 0xb5 0xf2 0x05 0xe1 0xb9 0x9f 0xcd | ||
261 | 0x86 0x60 0x86 0x3a 0x15 0x9a 0xd4 0xab 0xe4 0x0f | ||
262 | 0xa4 0x89 0x34 0x16 0x3d 0xdd 0xe5 0x42 0xa6 0x58 | ||
263 | 0x55 0x40 0xfd 0x68 0x3c 0xbf 0xd8 0xc0 0x0f 0x12 | ||
264 | 0x12 0x9a 0x28 0x4d 0xea 0xcc 0x4c 0xde 0xfe 0x58 | ||
265 | 0xbe 0x71 0x37 0x54 0x1c 0x04 0x71 0x26 0xc8 0xd4 | ||
266 | 0x9e 0x27 0x55 0xab 0x18 0x1a 0xb7 0xe9 0x40 0xb0 | ||
267 | 0xc0 | ||
268 | |||
269 | |||
270 | |||
271 | -- | ||
272 | --------------------------------------------------------------------- | ||
273 | We have the right to defend ourselves and our | ||
274 | property, because of the kind of animals that we James A. Donald | ||
275 | are. True law derives from this right, not from | ||
276 | the arbitrary power of the omnipotent state. jamesd@netcom.com | ||
277 | |||
278 | |||
diff --git a/src/lib/libssl/src/crypto/rc4/rrc4.doc b/src/lib/libssl/src/crypto/rc4/rrc4.doc deleted file mode 100644 index 2f9a953c12..0000000000 --- a/src/lib/libssl/src/crypto/rc4/rrc4.doc +++ /dev/null | |||
@@ -1,278 +0,0 @@ | |||
1 | Newsgroups: sci.crypt,alt.security,comp.security.misc,alt.privacy | ||
2 | Path: ghost.dsi.unimi.it!univ-lyon1.fr!jussieu.fr!zaphod.crihan.fr!warwick!clyde.open.ac.uk!strath-cs!bnr.co.uk!bt!pipex!howland.reston.ans.net!europa.eng.gtefsd.com!MathWorks.Com!yeshua.marcam.com!charnel.ecst.csuchico.edu!csusac!csus.edu!netcom.com!sterndark | ||
3 | From: sterndark@netcom.com (David Sterndark) | ||
4 | Subject: RC4 Algorithm revealed. | ||
5 | Message-ID: <sternCvKL4B.Hyy@netcom.com> | ||
6 | Sender: sterndark@netcom.com | ||
7 | Organization: NETCOM On-line Communication Services (408 261-4700 guest) | ||
8 | X-Newsreader: TIN [version 1.2 PL1] | ||
9 | Date: Wed, 14 Sep 1994 06:35:31 GMT | ||
10 | Lines: 263 | ||
11 | Xref: ghost.dsi.unimi.it sci.crypt:27332 alt.security:14732 comp.security.misc:11701 alt.privacy:16026 | ||
12 | |||
13 | I am shocked, shocked, I tell you, shocked, to discover | ||
14 | that the cypherpunks have illegaly and criminally revealed | ||
15 | a crucial RSA trade secret and harmed the security of | ||
16 | America by reverse engineering the RC4 algorithm and | ||
17 | publishing it to the world. | ||
18 | |||
19 | On Saturday morning an anonymous cypherpunk wrote: | ||
20 | |||
21 | |||
22 | SUBJECT: RC4 Source Code | ||
23 | |||
24 | |||
25 | I've tested this. It is compatible with the RC4 object module | ||
26 | that comes in the various RSA toolkits. | ||
27 | |||
28 | /* rc4.h */ | ||
29 | typedef struct rc4_key | ||
30 | { | ||
31 | unsigned char state[256]; | ||
32 | unsigned char x; | ||
33 | unsigned char y; | ||
34 | } rc4_key; | ||
35 | void prepare_key(unsigned char *key_data_ptr,int key_data_len, | ||
36 | rc4_key *key); | ||
37 | void rc4(unsigned char *buffer_ptr,int buffer_len,rc4_key * key); | ||
38 | |||
39 | |||
40 | /*rc4.c */ | ||
41 | #include "rc4.h" | ||
42 | static void swap_byte(unsigned char *a, unsigned char *b); | ||
43 | void prepare_key(unsigned char *key_data_ptr, int key_data_len, | ||
44 | rc4_key *key) | ||
45 | { | ||
46 | unsigned char swapByte; | ||
47 | unsigned char index1; | ||
48 | unsigned char index2; | ||
49 | unsigned char* state; | ||
50 | short counter; | ||
51 | |||
52 | state = &key->state[0]; | ||
53 | for(counter = 0; counter < 256; counter++) | ||
54 | state[counter] = counter; | ||
55 | key->x = 0; | ||
56 | key->y = 0; | ||
57 | index1 = 0; | ||
58 | index2 = 0; | ||
59 | for(counter = 0; counter < 256; counter++) | ||
60 | { | ||
61 | index2 = (key_data_ptr[index1] + state[counter] + | ||
62 | index2) % 256; | ||
63 | swap_byte(&state[counter], &state[index2]); | ||
64 | |||
65 | index1 = (index1 + 1) % key_data_len; | ||
66 | } | ||
67 | } | ||
68 | |||
69 | void rc4(unsigned char *buffer_ptr, int buffer_len, rc4_key *key) | ||
70 | { | ||
71 | unsigned char x; | ||
72 | unsigned char y; | ||
73 | unsigned char* state; | ||
74 | unsigned char xorIndex; | ||
75 | short counter; | ||
76 | |||
77 | x = key->x; | ||
78 | y = key->y; | ||
79 | |||
80 | state = &key->state[0]; | ||
81 | for(counter = 0; counter < buffer_len; counter ++) | ||
82 | { | ||
83 | x = (x + 1) % 256; | ||
84 | y = (state[x] + y) % 256; | ||
85 | swap_byte(&state[x], &state[y]); | ||
86 | |||
87 | xorIndex = (state[x] + state[y]) % 256; | ||
88 | |||
89 | buffer_ptr[counter] ^= state[xorIndex]; | ||
90 | } | ||
91 | key->x = x; | ||
92 | key->y = y; | ||
93 | } | ||
94 | |||
95 | static void swap_byte(unsigned char *a, unsigned char *b) | ||
96 | { | ||
97 | unsigned char swapByte; | ||
98 | |||
99 | swapByte = *a; | ||
100 | *a = *b; | ||
101 | *b = swapByte; | ||
102 | } | ||
103 | |||
104 | |||
105 | |||
106 | Another cypherpunk, this one not anonymous, tested the | ||
107 | output from this algorithm against the output from | ||
108 | official RC4 object code | ||
109 | |||
110 | |||
111 | Date: Tue, 13 Sep 94 18:37:56 PDT | ||
112 | From: ekr@eit.COM (Eric Rescorla) | ||
113 | Message-Id: <9409140137.AA17743@eitech.eit.com> | ||
114 | Subject: RC4 compatibility testing | ||
115 | Cc: cypherpunks@toad.com | ||
116 | |||
117 | One data point: | ||
118 | |||
119 | I can't say anything about the internals of RC4 versus the | ||
120 | algorithm that Bill Sommerfeld is rightly calling 'Alleged RC4', | ||
121 | since I don't know anything about RC4's internals. | ||
122 | |||
123 | However, I do have a (legitimately acquired) copy of BSAFE2 and | ||
124 | so I'm able to compare the output of this algorithm to the output | ||
125 | of genuine RC4 as found in BSAFE. I chose a set of test vectors | ||
126 | and ran them through both algorithms. The algorithms appear to | ||
127 | give identical results, at least with these key/plaintext pairs. | ||
128 | |||
129 | I note that this is the algorithm _without_ Hal Finney's | ||
130 | proposed modification | ||
131 | |||
132 | (see <199409130605.XAA24133@jobe.shell.portal.com>). | ||
133 | |||
134 | The vectors I used (together with the ciphertext they produce) | ||
135 | follow at the end of this message. | ||
136 | |||
137 | -Ekr | ||
138 | |||
139 | Disclaimer: This posting does not reflect the opinions of EIT. | ||
140 | |||
141 | --------------------results follow-------------- | ||
142 | Test vector 0 | ||
143 | Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
144 | Input: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
145 | 0 Output: 0x75 0xb7 0x87 0x80 0x99 0xe0 0xc5 0x96 | ||
146 | |||
147 | Test vector 1 | ||
148 | Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
149 | Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
150 | 0 Output: 0x74 0x94 0xc2 0xe7 0x10 0x4b 0x08 0x79 | ||
151 | |||
152 | Test vector 2 | ||
153 | Key: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
154 | Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
155 | 0 Output: 0xde 0x18 0x89 0x41 0xa3 0x37 0x5d 0x3a | ||
156 | |||
157 | Test vector 3 | ||
158 | Key: 0xef 0x01 0x23 0x45 | ||
159 | Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 | ||
160 | 0 Output: 0xd6 0xa1 0x41 0xa7 0xec 0x3c 0x38 0xdf 0xbd 0x61 | ||
161 | |||
162 | Test vector 4 | ||
163 | Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef | ||
164 | Input: 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
165 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
166 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
167 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
168 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
169 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
170 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
171 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
172 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
173 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
174 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
175 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
176 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
177 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
178 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
179 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
180 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
181 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
182 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
183 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
184 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
185 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
186 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
187 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
188 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
189 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
190 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
191 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
192 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
193 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
194 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
195 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
196 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
197 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
198 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
199 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
200 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
201 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
202 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
203 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
204 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
205 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
206 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
207 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
208 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
209 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
210 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
211 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
212 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
213 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
214 | 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 | ||
215 | 0x01 | ||
216 | 0 Output: 0x75 0x95 0xc3 0xe6 0x11 0x4a 0x09 0x78 0x0c 0x4a 0xd4 | ||
217 | 0x52 0x33 0x8e 0x1f 0xfd 0x9a 0x1b 0xe9 0x49 0x8f | ||
218 | 0x81 0x3d 0x76 0x53 0x34 0x49 0xb6 0x77 0x8d 0xca | ||
219 | 0xd8 0xc7 0x8a 0x8d 0x2b 0xa9 0xac 0x66 0x08 0x5d | ||
220 | 0x0e 0x53 0xd5 0x9c 0x26 0xc2 0xd1 0xc4 0x90 0xc1 | ||
221 | 0xeb 0xbe 0x0c 0xe6 0x6d 0x1b 0x6b 0x1b 0x13 0xb6 | ||
222 | 0xb9 0x19 0xb8 0x47 0xc2 0x5a 0x91 0x44 0x7a 0x95 | ||
223 | 0xe7 0x5e 0x4e 0xf1 0x67 0x79 0xcd 0xe8 0xbf 0x0a | ||
224 | 0x95 0x85 0x0e 0x32 0xaf 0x96 0x89 0x44 0x4f 0xd3 | ||
225 | 0x77 0x10 0x8f 0x98 0xfd 0xcb 0xd4 0xe7 0x26 0x56 | ||
226 | 0x75 0x00 0x99 0x0b 0xcc 0x7e 0x0c 0xa3 0xc4 0xaa | ||
227 | 0xa3 0x04 0xa3 0x87 0xd2 0x0f 0x3b 0x8f 0xbb 0xcd | ||
228 | 0x42 0xa1 0xbd 0x31 0x1d 0x7a 0x43 0x03 0xdd 0xa5 | ||
229 | 0xab 0x07 0x88 0x96 0xae 0x80 0xc1 0x8b 0x0a 0xf6 | ||
230 | 0x6d 0xff 0x31 0x96 0x16 0xeb 0x78 0x4e 0x49 0x5a | ||
231 | 0xd2 0xce 0x90 0xd7 0xf7 0x72 0xa8 0x17 0x47 0xb6 | ||
232 | 0x5f 0x62 0x09 0x3b 0x1e 0x0d 0xb9 0xe5 0xba 0x53 | ||
233 | 0x2f 0xaf 0xec 0x47 0x50 0x83 0x23 0xe6 0x71 0x32 | ||
234 | 0x7d 0xf9 0x44 0x44 0x32 0xcb 0x73 0x67 0xce 0xc8 | ||
235 | 0x2f 0x5d 0x44 0xc0 0xd0 0x0b 0x67 0xd6 0x50 0xa0 | ||
236 | 0x75 0xcd 0x4b 0x70 0xde 0xdd 0x77 0xeb 0x9b 0x10 | ||
237 | 0x23 0x1b 0x6b 0x5b 0x74 0x13 0x47 0x39 0x6d 0x62 | ||
238 | 0x89 0x74 0x21 0xd4 0x3d 0xf9 0xb4 0x2e 0x44 0x6e | ||
239 | 0x35 0x8e 0x9c 0x11 0xa9 0xb2 0x18 0x4e 0xcb 0xef | ||
240 | 0x0c 0xd8 0xe7 0xa8 0x77 0xef 0x96 0x8f 0x13 0x90 | ||
241 | 0xec 0x9b 0x3d 0x35 0xa5 0x58 0x5c 0xb0 0x09 0x29 | ||
242 | 0x0e 0x2f 0xcd 0xe7 0xb5 0xec 0x66 0xd9 0x08 0x4b | ||
243 | 0xe4 0x40 0x55 0xa6 0x19 0xd9 0xdd 0x7f 0xc3 0x16 | ||
244 | 0x6f 0x94 0x87 0xf7 0xcb 0x27 0x29 0x12 0x42 0x64 | ||
245 | 0x45 0x99 0x85 0x14 0xc1 0x5d 0x53 0xa1 0x8c 0x86 | ||
246 | 0x4c 0xe3 0xa2 0xb7 0x55 0x57 0x93 0x98 0x81 0x26 | ||
247 | 0x52 0x0e 0xac 0xf2 0xe3 0x06 0x6e 0x23 0x0c 0x91 | ||
248 | 0xbe 0xe4 0xdd 0x53 0x04 0xf5 0xfd 0x04 0x05 0xb3 | ||
249 | 0x5b 0xd9 0x9c 0x73 0x13 0x5d 0x3d 0x9b 0xc3 0x35 | ||
250 | 0xee 0x04 0x9e 0xf6 0x9b 0x38 0x67 0xbf 0x2d 0x7b | ||
251 | 0xd1 0xea 0xa5 0x95 0xd8 0xbf 0xc0 0x06 0x6f 0xf8 | ||
252 | 0xd3 0x15 0x09 0xeb 0x0c 0x6c 0xaa 0x00 0x6c 0x80 | ||
253 | 0x7a 0x62 0x3e 0xf8 0x4c 0x3d 0x33 0xc1 0x95 0xd2 | ||
254 | 0x3e 0xe3 0x20 0xc4 0x0d 0xe0 0x55 0x81 0x57 0xc8 | ||
255 | 0x22 0xd4 0xb8 0xc5 0x69 0xd8 0x49 0xae 0xd5 0x9d | ||
256 | 0x4e 0x0f 0xd7 0xf3 0x79 0x58 0x6b 0x4b 0x7f 0xf6 | ||
257 | 0x84 0xed 0x6a 0x18 0x9f 0x74 0x86 0xd4 0x9b 0x9c | ||
258 | 0x4b 0xad 0x9b 0xa2 0x4b 0x96 0xab 0xf9 0x24 0x37 | ||
259 | 0x2c 0x8a 0x8f 0xff 0xb1 0x0d 0x55 0x35 0x49 0x00 | ||
260 | 0xa7 0x7a 0x3d 0xb5 0xf2 0x05 0xe1 0xb9 0x9f 0xcd | ||
261 | 0x86 0x60 0x86 0x3a 0x15 0x9a 0xd4 0xab 0xe4 0x0f | ||
262 | 0xa4 0x89 0x34 0x16 0x3d 0xdd 0xe5 0x42 0xa6 0x58 | ||
263 | 0x55 0x40 0xfd 0x68 0x3c 0xbf 0xd8 0xc0 0x0f 0x12 | ||
264 | 0x12 0x9a 0x28 0x4d 0xea 0xcc 0x4c 0xde 0xfe 0x58 | ||
265 | 0xbe 0x71 0x37 0x54 0x1c 0x04 0x71 0x26 0xc8 0xd4 | ||
266 | 0x9e 0x27 0x55 0xab 0x18 0x1a 0xb7 0xe9 0x40 0xb0 | ||
267 | 0xc0 | ||
268 | |||
269 | |||
270 | |||
271 | -- | ||
272 | --------------------------------------------------------------------- | ||
273 | We have the right to defend ourselves and our | ||
274 | property, because of the kind of animals that we James A. Donald | ||
275 | are. True law derives from this right, not from | ||
276 | the arbitrary power of the omnipotent state. jamesd@netcom.com | ||
277 | |||
278 | |||