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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitaeeae06a79815dc190061534d47236cec09f9e32 (patch)
tree851692b9c2f9c04f077666855641900f19fdb217 /src/lib/libcrypto/perlasm/cbc.pl
parenta4f79641824cbf9f60ca9d1168d1fcc46717a82a (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/perlasm/cbc.pl')
-rw-r--r--src/lib/libcrypto/perlasm/cbc.pl342
1 files changed, 342 insertions, 0 deletions
diff --git a/src/lib/libcrypto/perlasm/cbc.pl b/src/lib/libcrypto/perlasm/cbc.pl
new file mode 100644
index 0000000000..2789305790
--- /dev/null
+++ b/src/lib/libcrypto/perlasm/cbc.pl
@@ -0,0 +1,342 @@
1#!/usr/bin/perl
2
3# void des_ncbc_encrypt(input, output, length, schedule, ivec, enc)
4# des_cblock (*input);
5# des_cblock (*output);
6# long length;
7# des_key_schedule schedule;
8# des_cblock (*ivec);
9# int enc;
10#
11# calls
12# des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
13#
14
15#&cbc("des_ncbc_encrypt","des_encrypt",0);
16#&cbc("BF_cbc_encrypt","BF_encrypt","BF_encrypt",
17# 1,4,5,3,5,-1);
18#&cbc("des_ncbc_encrypt","des_encrypt","des_encrypt",
19# 0,4,5,3,5,-1);
20#&cbc("des_ede3_cbc_encrypt","des_encrypt3","des_decrypt3",
21# 0,6,7,3,4,5);
22#
23# When doing a cipher that needs bigendian order,
24# for encrypt, the iv is kept in bigendian form,
25# while for decrypt, it is kept in little endian.
26sub cbc
27 {
28 local($name,$enc_func,$dec_func,$swap,$iv_off,$enc_off,$p1,$p2,$p3)=@_;
29 # name is the function name
30 # enc_func and dec_func and the functions to call for encrypt/decrypt
31 # swap is true if byte order needs to be reversed
32 # iv_off is parameter number for the iv
33 # enc_off is parameter number for the encrypt/decrypt flag
34 # p1,p2,p3 are the offsets for parameters to be passed to the
35 # underlying calls.
36
37 &function_begin_B($name,"");
38 &comment("");
39
40 $in="esi";
41 $out="edi";
42 $count="ebp";
43
44 &push("ebp");
45 &push("ebx");
46 &push("esi");
47 &push("edi");
48
49 $data_off=4;
50 $data_off+=4 if ($p1 > 0);
51 $data_off+=4 if ($p2 > 0);
52 $data_off+=4 if ($p3 > 0);
53
54 &mov($count, &wparam(2)); # length
55
56 &comment("getting iv ptr from parameter $iv_off");
57 &mov("ebx", &wparam($iv_off)); # Get iv ptr
58
59 &mov($in, &DWP(0,"ebx","",0));# iv[0]
60 &mov($out, &DWP(4,"ebx","",0));# iv[1]
61
62 &push($out);
63 &push($in);
64 &push($out); # used in decrypt for iv[1]
65 &push($in); # used in decrypt for iv[0]
66
67 &mov("ebx", "esp"); # This is the address of tin[2]
68
69 &mov($in, &wparam(0)); # in
70 &mov($out, &wparam(1)); # out
71
72 # We have loaded them all, how lets push things
73 &comment("getting encrypt flag from parameter $enc_off");
74 &mov("ecx", &wparam($enc_off)); # Get enc flag
75 if ($p3 > 0)
76 {
77 &comment("get and push parameter $p3");
78 if ($enc_off != $p3)
79 { &mov("eax", &wparam($p3)); &push("eax"); }
80 else { &push("ecx"); }
81 }
82 if ($p2 > 0)
83 {
84 &comment("get and push parameter $p2");
85 if ($enc_off != $p2)
86 { &mov("eax", &wparam($p2)); &push("eax"); }
87 else { &push("ecx"); }
88 }
89 if ($p1 > 0)
90 {
91 &comment("get and push parameter $p1");
92 if ($enc_off != $p1)
93 { &mov("eax", &wparam($p1)); &push("eax"); }
94 else { &push("ecx"); }
95 }
96 &push("ebx"); # push data/iv
97
98 &cmp("ecx",0);
99 &jz(&label("decrypt"));
100
101 &and($count,0xfffffff8);
102 &mov("eax", &DWP($data_off,"esp","",0)); # load iv[0]
103 &mov("ebx", &DWP($data_off+4,"esp","",0)); # load iv[1]
104
105 &jz(&label("encrypt_finish"));
106
107 #############################################################
108
109 &set_label("encrypt_loop");
110 # encrypt start
111 # "eax" and "ebx" hold iv (or the last cipher text)
112
113 &mov("ecx", &DWP(0,$in,"",0)); # load first 4 bytes
114 &mov("edx", &DWP(4,$in,"",0)); # second 4 bytes
115
116 &xor("eax", "ecx");
117 &xor("ebx", "edx");
118
119 &bswap("eax") if $swap;
120 &bswap("ebx") if $swap;
121
122 &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
123 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
124
125 &call($enc_func);
126
127 &mov("eax", &DWP($data_off,"esp","",0));
128 &mov("ebx", &DWP($data_off+4,"esp","",0));
129
130 &bswap("eax") if $swap;
131 &bswap("ebx") if $swap;
132
133 &mov(&DWP(0,$out,"",0),"eax");
134 &mov(&DWP(4,$out,"",0),"ebx");
135
136 # eax and ebx are the next iv.
137
138 &add($in, 8);
139 &add($out, 8);
140
141 &sub($count, 8);
142 &jnz(&label("encrypt_loop"));
143
144###################################################################3
145 &set_label("encrypt_finish");
146 &mov($count, &wparam(2)); # length
147 &and($count, 7);
148 &jz(&label("finish"));
149 &xor("ecx","ecx");
150 &xor("edx","edx");
151 &mov($count,&DWP(&label("cbc_enc_jmp_table"),"",$count,4));
152 &jmp_ptr($count);
153
154&set_label("ej7");
155 &xor("edx", "edx") if $ppro; # ppro friendly
156 &movb(&HB("edx"), &BP(6,$in,"",0));
157 &shl("edx",8);
158&set_label("ej6");
159 &movb(&HB("edx"), &BP(5,$in,"",0));
160&set_label("ej5");
161 &movb(&LB("edx"), &BP(4,$in,"",0));
162&set_label("ej4");
163 &mov("ecx", &DWP(0,$in,"",0));
164 &jmp(&label("ejend"));
165&set_label("ej3");
166 &movb(&HB("ecx"), &BP(2,$in,"",0));
167 &xor("ecx", "ecx") if $ppro; # ppro friendly
168 &shl("ecx",8);
169&set_label("ej2");
170 &movb(&HB("ecx"), &BP(1,$in,"",0));
171&set_label("ej1");
172 &movb(&LB("ecx"), &BP(0,$in,"",0));
173&set_label("ejend");
174
175 &xor("eax", "ecx");
176 &xor("ebx", "edx");
177
178 &bswap("eax") if $swap;
179 &bswap("ebx") if $swap;
180
181 &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
182 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
183
184 &call($enc_func);
185
186 &mov("eax", &DWP($data_off,"esp","",0));
187 &mov("ebx", &DWP($data_off+4,"esp","",0));
188
189 &bswap("eax") if $swap;
190 &bswap("ebx") if $swap;
191
192 &mov(&DWP(0,$out,"",0),"eax");
193 &mov(&DWP(4,$out,"",0),"ebx");
194
195 &jmp(&label("finish"));
196
197 #############################################################
198 #############################################################
199 &set_label("decrypt",1);
200 # decrypt start
201 &and($count,0xfffffff8);
202 # The next 2 instructions are only for if the jz is taken
203 &mov("eax", &DWP($data_off+8,"esp","",0)); # get iv[0]
204 &mov("ebx", &DWP($data_off+12,"esp","",0)); # get iv[1]
205 &jz(&label("decrypt_finish"));
206
207 &set_label("decrypt_loop");
208 &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
209 &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
210
211 &bswap("eax") if $swap;
212 &bswap("ebx") if $swap;
213
214 &mov(&DWP($data_off,"esp","",0), "eax"); # put back
215 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
216
217 &call($dec_func);
218
219 &mov("eax", &DWP($data_off,"esp","",0)); # get return
220 &mov("ebx", &DWP($data_off+4,"esp","",0)); #
221
222 &bswap("eax") if $swap;
223 &bswap("ebx") if $swap;
224
225 &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
226 &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
227
228 &xor("ecx", "eax");
229 &xor("edx", "ebx");
230
231 &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
232 &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
233
234 &mov(&DWP(0,$out,"",0),"ecx");
235 &mov(&DWP(4,$out,"",0),"edx");
236
237 &mov(&DWP($data_off+8,"esp","",0), "eax"); # save iv
238 &mov(&DWP($data_off+12,"esp","",0), "ebx"); #
239
240 &add($in, 8);
241 &add($out, 8);
242
243 &sub($count, 8);
244 &jnz(&label("decrypt_loop"));
245############################ ENDIT #######################3
246 &set_label("decrypt_finish");
247 &mov($count, &wparam(2)); # length
248 &and($count, 7);
249 &jz(&label("finish"));
250
251 &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
252 &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
253
254 &bswap("eax") if $swap;
255 &bswap("ebx") if $swap;
256
257 &mov(&DWP($data_off,"esp","",0), "eax"); # put back
258 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
259
260 &call($dec_func);
261
262 &mov("eax", &DWP($data_off,"esp","",0)); # get return
263 &mov("ebx", &DWP($data_off+4,"esp","",0)); #
264
265 &bswap("eax") if $swap;
266 &bswap("ebx") if $swap;
267
268 &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
269 &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
270
271 &xor("ecx", "eax");
272 &xor("edx", "ebx");
273
274 # this is for when we exit
275 &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
276 &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
277
278&set_label("dj7");
279 &rotr("edx", 16);
280 &movb(&BP(6,$out,"",0), &LB("edx"));
281 &shr("edx",16);
282&set_label("dj6");
283 &movb(&BP(5,$out,"",0), &HB("edx"));
284&set_label("dj5");
285 &movb(&BP(4,$out,"",0), &LB("edx"));
286&set_label("dj4");
287 &mov(&DWP(0,$out,"",0), "ecx");
288 &jmp(&label("djend"));
289&set_label("dj3");
290 &rotr("ecx", 16);
291 &movb(&BP(2,$out,"",0), &LB("ecx"));
292 &shl("ecx",16);
293&set_label("dj2");
294 &movb(&BP(1,$in,"",0), &HB("ecx"));
295&set_label("dj1");
296 &movb(&BP(0,$in,"",0), &LB("ecx"));
297&set_label("djend");
298
299 # final iv is still in eax:ebx
300 &jmp(&label("finish"));
301
302
303############################ FINISH #######################3
304 &set_label("finish",1);
305 &mov("ecx", &wparam($iv_off)); # Get iv ptr
306
307 #################################################
308 $total=16+4;
309 $total+=4 if ($p1 > 0);
310 $total+=4 if ($p2 > 0);
311 $total+=4 if ($p3 > 0);
312 &add("esp",$total);
313
314 &mov(&DWP(0,"ecx","",0), "eax"); # save iv
315 &mov(&DWP(4,"ecx","",0), "ebx"); # save iv
316
317 &function_end_A($name);
318
319 &set_label("cbc_enc_jmp_table",1);
320 &data_word("0");
321 &data_word(&label("ej1"));
322 &data_word(&label("ej2"));
323 &data_word(&label("ej3"));
324 &data_word(&label("ej4"));
325 &data_word(&label("ej5"));
326 &data_word(&label("ej6"));
327 &data_word(&label("ej7"));
328 &set_label("cbc_dec_jmp_table",1);
329 &data_word("0");
330 &data_word(&label("dj1"));
331 &data_word(&label("dj2"));
332 &data_word(&label("dj3"));
333 &data_word(&label("dj4"));
334 &data_word(&label("dj5"));
335 &data_word(&label("dj6"));
336 &data_word(&label("dj7"));
337
338 &function_end_B($name);
339
340 }
341
3421;
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