6e522441 |
1 | /* |
2 | * PuTTY key generation front end. |
3 | */ |
4 | |
5 | #include <windows.h> |
6 | #include <commctrl.h> |
7 | #include <time.h> |
6e522441 |
8 | #include <stdio.h> |
49bad831 |
9 | #include <stdlib.h> |
6e522441 |
10 | |
11 | #define PUTTY_DO_GLOBALS |
12 | |
13 | #include "putty.h" |
14 | #include "ssh.h" |
15 | #include "winstuff.h" |
16 | |
17 | #define WM_DONEKEY (WM_XUSER + 1) |
18 | |
0c2986d0 |
19 | #define DEFAULT_KEYSIZE 1024 |
6e522441 |
20 | |
6e522441 |
21 | /* ---------------------------------------------------------------------- |
22 | * Progress report code. This is really horrible :-) |
23 | */ |
24 | #define PHASE1TOTAL 0x10000 |
25 | #define PHASE2TOTAL 0x10000 |
26 | #define PHASE3TOTAL 0x04000 |
27 | #define PHASE1START 0 |
28 | #define PHASE2START (PHASE1TOTAL) |
29 | #define PHASE3START (PHASE1TOTAL + PHASE2TOTAL) |
30 | #define TOTALTOTAL (PHASE1TOTAL + PHASE2TOTAL + PHASE3TOTAL) |
31 | #define PROGRESSBIGRANGE 65535 |
32 | #define DIVISOR ((TOTALTOTAL + PROGRESSBIGRANGE - 1) / PROGRESSBIGRANGE) |
33 | #define PROGRESSRANGE (TOTALTOTAL / DIVISOR) |
34 | struct progress { |
35 | unsigned phase1param, phase1current, phase1n; |
36 | unsigned phase2param, phase2current, phase2n; |
37 | unsigned phase3mult; |
38 | HWND progbar; |
39 | }; |
40 | |
32874aea |
41 | static void progress_update(void *param, int phase, int iprogress) |
42 | { |
43 | struct progress *p = (struct progress *) param; |
6e522441 |
44 | unsigned progress = iprogress; |
45 | int position; |
46 | |
47 | switch (phase) { |
48 | case -1: |
32874aea |
49 | p->phase1param = 0x10000 + progress; |
50 | p->phase1current = 0x10000; |
51 | p->phase1n = 0; |
52 | return; |
6e522441 |
53 | case -2: |
32874aea |
54 | p->phase2param = 0x10000 + progress; |
55 | p->phase2current = 0x10000; |
56 | p->phase2n = 0; |
57 | return; |
6e522441 |
58 | case -3: |
32874aea |
59 | p->phase3mult = PHASE3TOTAL / progress; |
60 | return; |
6e522441 |
61 | case 1: |
32874aea |
62 | while (p->phase1n < progress) { |
63 | p->phase1n++; |
64 | p->phase1current *= p->phase1param; |
65 | p->phase1current /= 0x10000; |
66 | } |
67 | position = PHASE1START + 0x10000 - p->phase1current; |
68 | break; |
6e522441 |
69 | case 2: |
32874aea |
70 | while (p->phase2n < progress) { |
71 | p->phase2n++; |
72 | p->phase2current *= p->phase2param; |
73 | p->phase2current /= 0x10000; |
74 | } |
75 | position = PHASE2START + 0x10000 - p->phase2current; |
76 | break; |
6e522441 |
77 | case 3: |
32874aea |
78 | position = PHASE3START + progress * p->phase3mult; |
79 | break; |
6e522441 |
80 | } |
81 | |
82 | SendMessage(p->progbar, PBM_SETPOS, position / DIVISOR, 0); |
83 | } |
84 | |
85 | extern char ver[]; |
86 | |
87 | #define PASSPHRASE_MAXLEN 512 |
88 | |
89 | struct PassphraseProcStruct { |
90 | char *passphrase; |
91 | char *comment; |
92 | }; |
93 | |
94 | /* |
95 | * Dialog-box function for the passphrase box. |
96 | */ |
97 | static int CALLBACK PassphraseProc(HWND hwnd, UINT msg, |
32874aea |
98 | WPARAM wParam, LPARAM lParam) |
99 | { |
8e1feb27 |
100 | static char *passphrase = NULL; |
6e522441 |
101 | struct PassphraseProcStruct *p; |
102 | |
103 | switch (msg) { |
104 | case WM_INITDIALOG: |
32874aea |
105 | SetForegroundWindow(hwnd); |
106 | SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, |
107 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
65a22376 |
108 | |
109 | /* |
110 | * Centre the window. |
111 | */ |
112 | { /* centre the window */ |
113 | RECT rs, rd; |
114 | HWND hw; |
115 | |
116 | hw = GetDesktopWindow(); |
32874aea |
117 | if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) |
118 | MoveWindow(hwnd, |
119 | (rs.right + rs.left + rd.left - rd.right) / 2, |
120 | (rs.bottom + rs.top + rd.top - rd.bottom) / 2, |
121 | rd.right - rd.left, rd.bottom - rd.top, TRUE); |
65a22376 |
122 | } |
123 | |
32874aea |
124 | p = (struct PassphraseProcStruct *) lParam; |
125 | passphrase = p->passphrase; |
126 | if (p->comment) |
127 | SetDlgItemText(hwnd, 101, p->comment); |
128 | *passphrase = 0; |
129 | SetDlgItemText(hwnd, 102, passphrase); |
130 | return 0; |
6e522441 |
131 | case WM_COMMAND: |
132 | switch (LOWORD(wParam)) { |
133 | case IDOK: |
134 | if (*passphrase) |
32874aea |
135 | EndDialog(hwnd, 1); |
6e522441 |
136 | else |
32874aea |
137 | MessageBeep(0); |
6e522441 |
138 | return 0; |
139 | case IDCANCEL: |
32874aea |
140 | EndDialog(hwnd, 0); |
6e522441 |
141 | return 0; |
32874aea |
142 | case 102: /* edit box */ |
8e1feb27 |
143 | if ((HIWORD(wParam) == EN_CHANGE) && passphrase) { |
32874aea |
144 | GetDlgItemText(hwnd, 102, passphrase, |
145 | PASSPHRASE_MAXLEN - 1); |
146 | passphrase[PASSPHRASE_MAXLEN - 1] = '\0'; |
147 | } |
148 | return 0; |
6e522441 |
149 | } |
150 | return 0; |
151 | case WM_CLOSE: |
32874aea |
152 | EndDialog(hwnd, 0); |
6e522441 |
153 | return 0; |
154 | } |
155 | return 0; |
156 | } |
157 | |
158 | /* |
159 | * Prompt for a key file. Assumes the filename buffer is of size |
160 | * FILENAME_MAX. |
161 | */ |
162 | static int prompt_keyfile(HWND hwnd, char *dlgtitle, |
32874aea |
163 | char *filename, int save) |
164 | { |
6e522441 |
165 | OPENFILENAME of; |
166 | memset(&of, 0, sizeof(of)); |
167 | #ifdef OPENFILENAME_SIZE_VERSION_400 |
168 | of.lStructSize = OPENFILENAME_SIZE_VERSION_400; |
169 | #else |
170 | of.lStructSize = sizeof(of); |
171 | #endif |
172 | of.hwndOwner = hwnd; |
173 | of.lpstrFilter = "All Files\0*\0\0\0"; |
174 | of.lpstrCustomFilter = NULL; |
175 | of.nFilterIndex = 1; |
32874aea |
176 | of.lpstrFile = filename; |
177 | *filename = '\0'; |
6e522441 |
178 | of.nMaxFile = FILENAME_MAX; |
179 | of.lpstrFileTitle = NULL; |
180 | of.lpstrInitialDir = NULL; |
181 | of.lpstrTitle = dlgtitle; |
182 | of.Flags = 0; |
183 | if (save) |
32874aea |
184 | return GetSaveFileName(&of); |
6e522441 |
185 | else |
32874aea |
186 | return GetOpenFileName(&of); |
6e522441 |
187 | } |
188 | |
189 | /* |
190 | * This function is needed to link with the DES code. We need not |
191 | * have it do anything at all. |
192 | */ |
32874aea |
193 | void logevent(char *msg) |
194 | { |
6e522441 |
195 | } |
196 | |
197 | /* |
198 | * Dialog-box function for the Licence box. |
199 | */ |
32874aea |
200 | static int CALLBACK LicenceProc(HWND hwnd, UINT msg, |
201 | WPARAM wParam, LPARAM lParam) |
202 | { |
6e522441 |
203 | switch (msg) { |
204 | case WM_INITDIALOG: |
65a22376 |
205 | /* |
206 | * Centre the window. |
207 | */ |
208 | { /* centre the window */ |
209 | RECT rs, rd; |
210 | HWND hw; |
211 | |
212 | hw = GetDesktopWindow(); |
32874aea |
213 | if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) |
214 | MoveWindow(hwnd, |
215 | (rs.right + rs.left + rd.left - rd.right) / 2, |
216 | (rs.bottom + rs.top + rd.top - rd.bottom) / 2, |
217 | rd.right - rd.left, rd.bottom - rd.top, TRUE); |
65a22376 |
218 | } |
219 | |
6e522441 |
220 | return 1; |
221 | case WM_COMMAND: |
222 | switch (LOWORD(wParam)) { |
223 | case IDOK: |
32874aea |
224 | EndDialog(hwnd, 1); |
6e522441 |
225 | return 0; |
226 | } |
227 | return 0; |
228 | case WM_CLOSE: |
229 | EndDialog(hwnd, 1); |
230 | return 0; |
231 | } |
232 | return 0; |
233 | } |
234 | |
235 | /* |
236 | * Dialog-box function for the About box. |
237 | */ |
32874aea |
238 | static int CALLBACK AboutProc(HWND hwnd, UINT msg, |
239 | WPARAM wParam, LPARAM lParam) |
240 | { |
6e522441 |
241 | switch (msg) { |
242 | case WM_INITDIALOG: |
65a22376 |
243 | /* |
244 | * Centre the window. |
245 | */ |
246 | { /* centre the window */ |
247 | RECT rs, rd; |
248 | HWND hw; |
249 | |
250 | hw = GetDesktopWindow(); |
32874aea |
251 | if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) |
252 | MoveWindow(hwnd, |
253 | (rs.right + rs.left + rd.left - rd.right) / 2, |
254 | (rs.bottom + rs.top + rd.top - rd.bottom) / 2, |
255 | rd.right - rd.left, rd.bottom - rd.top, TRUE); |
65a22376 |
256 | } |
257 | |
32874aea |
258 | SetDlgItemText(hwnd, 100, ver); |
6e522441 |
259 | return 1; |
260 | case WM_COMMAND: |
261 | switch (LOWORD(wParam)) { |
262 | case IDOK: |
32874aea |
263 | EndDialog(hwnd, 1); |
6e522441 |
264 | return 0; |
265 | case 101: |
266 | EnableWindow(hwnd, 0); |
32874aea |
267 | DialogBox(hinst, MAKEINTRESOURCE(214), NULL, LicenceProc); |
6e522441 |
268 | EnableWindow(hwnd, 1); |
32874aea |
269 | SetActiveWindow(hwnd); |
6e522441 |
270 | return 0; |
271 | } |
272 | return 0; |
273 | case WM_CLOSE: |
32874aea |
274 | EndDialog(hwnd, 1); |
6e522441 |
275 | return 0; |
276 | } |
277 | return 0; |
278 | } |
279 | |
280 | /* |
281 | * Thread to generate a key. |
282 | */ |
283 | struct rsa_key_thread_params { |
32874aea |
284 | HWND progressbar; /* notify this with progress */ |
285 | HWND dialog; /* notify this on completion */ |
0c2986d0 |
286 | int keysize; /* bits in key */ |
6e522441 |
287 | struct RSAKey *key; |
6e522441 |
288 | }; |
32874aea |
289 | static DWORD WINAPI generate_rsa_key_thread(void *param) |
290 | { |
6e522441 |
291 | struct rsa_key_thread_params *params = |
32874aea |
292 | (struct rsa_key_thread_params *) param; |
6e522441 |
293 | struct progress prog; |
294 | prog.progbar = params->progressbar; |
295 | |
65a22376 |
296 | rsa_generate(params->key, params->keysize, progress_update, &prog); |
6e522441 |
297 | |
298 | PostMessage(params->dialog, WM_DONEKEY, 0, 0); |
299 | |
dcbde236 |
300 | sfree(params); |
6e522441 |
301 | return 0; |
302 | } |
303 | |
304 | struct MainDlgState { |
305 | int collecting_entropy; |
306 | int generation_thread_exists; |
307 | int key_exists; |
308 | int entropy_got, entropy_required, entropy_size; |
0c2986d0 |
309 | int keysize; |
65a22376 |
310 | int ssh2; |
311 | char **commentptr; /* points to key.comment or ssh2key.comment */ |
312 | struct ssh2_userkey ssh2key; |
6e522441 |
313 | unsigned *entropy; |
314 | struct RSAKey key; |
6e522441 |
315 | }; |
316 | |
32874aea |
317 | static void hidemany(HWND hwnd, const int *ids, int hideit) |
318 | { |
6e522441 |
319 | while (*ids) { |
32874aea |
320 | ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW)); |
6e522441 |
321 | } |
322 | } |
323 | |
32874aea |
324 | static void setupbigedit1(HWND hwnd, int id, struct RSAKey *key) |
325 | { |
6e522441 |
326 | char *buffer; |
327 | char *dec1, *dec2; |
328 | |
329 | dec1 = bignum_decimal(key->exponent); |
330 | dec2 = bignum_decimal(key->modulus); |
32874aea |
331 | buffer = smalloc(strlen(dec1) + strlen(dec2) + |
332 | strlen(key->comment) + 30); |
6e522441 |
333 | sprintf(buffer, "%d %s %s %s", |
32874aea |
334 | bignum_bitcount(key->modulus), dec1, dec2, key->comment); |
6e522441 |
335 | SetDlgItemText(hwnd, id, buffer); |
dcbde236 |
336 | sfree(dec1); |
337 | sfree(dec2); |
338 | sfree(buffer); |
6e522441 |
339 | } |
340 | |
32874aea |
341 | static void setupbigedit2(HWND hwnd, int id, struct ssh2_userkey *key) |
342 | { |
65a22376 |
343 | unsigned char *pub_blob; |
344 | char *buffer, *p; |
44fb739e |
345 | int pub_len; |
65a22376 |
346 | int i; |
347 | |
348 | pub_blob = key->alg->public_blob(key->data, &pub_len); |
32874aea |
349 | buffer = smalloc(strlen(key->alg->name) + 4 * ((pub_len + 2) / 3) + |
65a22376 |
350 | strlen(key->comment) + 3); |
351 | strcpy(buffer, key->alg->name); |
352 | p = buffer + strlen(buffer); |
353 | *p++ = ' '; |
354 | i = 0; |
355 | while (i < pub_len) { |
32874aea |
356 | int n = (pub_len - i < 3 ? pub_len - i : 3); |
357 | base64_encode_atom(pub_blob + i, n, p); |
65a22376 |
358 | i += n; |
359 | p += 4; |
360 | } |
361 | *p++ = ' '; |
362 | strcpy(p, key->comment); |
363 | SetDlgItemText(hwnd, id, buffer); |
364 | sfree(pub_blob); |
32874aea |
365 | sfree(buffer); |
65a22376 |
366 | } |
367 | |
6e522441 |
368 | /* |
369 | * Dialog-box function for the main PuTTYgen dialog box. |
370 | */ |
32874aea |
371 | static int CALLBACK MainDlgProc(HWND hwnd, UINT msg, |
372 | WPARAM wParam, LPARAM lParam) |
373 | { |
6e522441 |
374 | enum { |
32874aea |
375 | controlidstart = 100, |
376 | IDC_TITLE, |
377 | IDC_BOX_KEY, |
378 | IDC_NOKEY, |
379 | IDC_GENERATING, |
380 | IDC_PROGRESS, |
381 | IDC_PKSTATIC, IDC_KEYDISPLAY, |
382 | IDC_FPSTATIC, IDC_FINGERPRINT, |
383 | IDC_COMMENTSTATIC, IDC_COMMENTEDIT, |
384 | IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT, |
385 | IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, |
386 | IDC_BOX_ACTIONS, |
387 | IDC_GENSTATIC, IDC_GENERATE, |
388 | IDC_LOADSTATIC, IDC_LOAD, |
389 | IDC_SAVESTATIC, IDC_SAVE, |
390 | IDC_BOX_PARAMS, |
65a22376 |
391 | IDC_TYPESTATIC, IDC_KEYSSH1, IDC_KEYSSH2RSA, |
32874aea |
392 | IDC_BITSSTATIC, IDC_BITS, |
393 | IDC_ABOUT, |
6e522441 |
394 | }; |
395 | static const int nokey_ids[] = { IDC_NOKEY, 0 }; |
32874aea |
396 | static const int generating_ids[] = |
397 | { IDC_GENERATING, IDC_PROGRESS, 0 }; |
6e522441 |
398 | static const int gotkey_ids[] = { |
32874aea |
399 | IDC_PKSTATIC, IDC_KEYDISPLAY, |
400 | IDC_FPSTATIC, IDC_FINGERPRINT, |
401 | IDC_COMMENTSTATIC, IDC_COMMENTEDIT, |
402 | IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT, |
403 | IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 0 |
404 | }; |
6e522441 |
405 | static const char generating_msg[] = |
32874aea |
406 | "Please wait while a key is generated..."; |
6e522441 |
407 | static const char entropy_msg[] = |
32874aea |
408 | "Please generate some randomness by moving the mouse over the blank area."; |
6e522441 |
409 | struct MainDlgState *state; |
410 | |
411 | switch (msg) { |
412 | case WM_INITDIALOG: |
65a22376 |
413 | /* |
414 | * Centre the window. |
415 | */ |
416 | { /* centre the window */ |
417 | RECT rs, rd; |
418 | HWND hw; |
419 | |
420 | hw = GetDesktopWindow(); |
32874aea |
421 | if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) |
422 | MoveWindow(hwnd, |
423 | (rs.right + rs.left + rd.left - rd.right) / 2, |
424 | (rs.bottom + rs.top + rd.top - rd.bottom) / 2, |
425 | rd.right - rd.left, rd.bottom - rd.top, TRUE); |
65a22376 |
426 | } |
427 | |
32874aea |
428 | state = smalloc(sizeof(*state)); |
429 | state->generation_thread_exists = FALSE; |
430 | state->collecting_entropy = FALSE; |
431 | state->entropy = NULL; |
432 | state->key_exists = FALSE; |
433 | SetWindowLong(hwnd, GWL_USERDATA, (LONG) state); |
434 | { |
435 | struct ctlpos cp, cp2; |
6e522441 |
436 | |
a5470c60 |
437 | /* Accelerators used: acglops */ |
438 | |
32874aea |
439 | ctlposinit(&cp, hwnd, 10, 10, 10); |
440 | bartitle(&cp, "Public and private key generation for PuTTY", |
441 | IDC_TITLE); |
442 | beginbox(&cp, "Key", IDC_BOX_KEY); |
443 | cp2 = cp; |
444 | statictext(&cp2, "No key.", IDC_NOKEY); |
445 | cp2 = cp; |
446 | statictext(&cp2, "", IDC_GENERATING); |
447 | progressbar(&cp2, IDC_PROGRESS); |
448 | bigeditctrl(&cp, |
449 | "&Public key for pasting into authorized_keys file:", |
450 | IDC_PKSTATIC, IDC_KEYDISPLAY, 7); |
451 | SendDlgItemMessage(hwnd, IDC_KEYDISPLAY, EM_SETREADONLY, 1, 0); |
452 | staticedit(&cp, "Key fingerprint:", IDC_FPSTATIC, |
453 | IDC_FINGERPRINT, 75); |
454 | SendDlgItemMessage(hwnd, IDC_FINGERPRINT, EM_SETREADONLY, 1, |
455 | 0); |
456 | staticedit(&cp, "Key &comment:", IDC_COMMENTSTATIC, |
457 | IDC_COMMENTEDIT, 75); |
458 | staticpassedit(&cp, "Key p&assphrase:", IDC_PASSPHRASE1STATIC, |
459 | IDC_PASSPHRASE1EDIT, 75); |
460 | staticpassedit(&cp, "C&onfirm passphrase:", |
461 | IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 75); |
462 | endbox(&cp); |
463 | beginbox(&cp, "Actions", IDC_BOX_ACTIONS); |
464 | staticbtn(&cp, "Generate a public/private key pair", |
465 | IDC_GENSTATIC, "&Generate", IDC_GENERATE); |
466 | staticbtn(&cp, "Load an existing private key file", |
467 | IDC_LOADSTATIC, "&Load", IDC_LOAD); |
468 | staticbtn(&cp, "Save the generated key to a new file", |
469 | IDC_SAVESTATIC, "&Save", IDC_SAVE); |
470 | endbox(&cp); |
471 | beginbox(&cp, "Parameters", IDC_BOX_PARAMS); |
65a22376 |
472 | radioline(&cp, "Type of key to generate:", IDC_TYPESTATIC, 2, |
32874aea |
473 | "SSH&1 (RSA)", IDC_KEYSSH1, |
474 | "SSH2 &RSA", IDC_KEYSSH2RSA, NULL); |
475 | staticedit(&cp, "Number of &bits in a generated key:", |
0c2986d0 |
476 | IDC_BITSSTATIC, IDC_BITS, 20); |
32874aea |
477 | endbox(&cp); |
478 | } |
65a22376 |
479 | CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2RSA, IDC_KEYSSH1); |
0c2986d0 |
480 | SetDlgItemInt(hwnd, IDC_BITS, DEFAULT_KEYSIZE, FALSE); |
481 | |
32874aea |
482 | /* |
483 | * Initially, hide the progress bar and the key display, |
484 | * and show the no-key display. Also disable the Save |
485 | * button, because with no key we obviously can't save |
486 | * anything. |
487 | */ |
488 | hidemany(hwnd, nokey_ids, FALSE); |
489 | hidemany(hwnd, generating_ids, TRUE); |
490 | hidemany(hwnd, gotkey_ids, TRUE); |
491 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); |
6e522441 |
492 | |
493 | return 1; |
494 | case WM_MOUSEMOVE: |
32874aea |
495 | state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); |
496 | if (state->collecting_entropy && |
497 | state->entropy && state->entropy_got < state->entropy_required) { |
498 | state->entropy[state->entropy_got++] = lParam; |
499 | state->entropy[state->entropy_got++] = GetMessageTime(); |
500 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, |
501 | state->entropy_got, 0); |
502 | if (state->entropy_got >= state->entropy_required) { |
503 | struct rsa_key_thread_params *params; |
504 | DWORD threadid; |
505 | |
506 | /* |
507 | * Seed the entropy pool |
508 | */ |
509 | random_add_heavynoise(state->entropy, state->entropy_size); |
510 | memset(state->entropy, 0, state->entropy_size); |
511 | sfree(state->entropy); |
512 | state->collecting_entropy = FALSE; |
513 | |
514 | SetDlgItemText(hwnd, IDC_GENERATING, generating_msg); |
515 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, |
516 | MAKELPARAM(0, PROGRESSRANGE)); |
517 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); |
518 | |
519 | params = smalloc(sizeof(*params)); |
520 | params->progressbar = GetDlgItem(hwnd, IDC_PROGRESS); |
521 | params->dialog = hwnd; |
0c2986d0 |
522 | params->keysize = state->keysize; |
32874aea |
523 | params->key = &state->key; |
524 | |
525 | if (!CreateThread(NULL, 0, generate_rsa_key_thread, |
526 | params, 0, &threadid)) { |
527 | MessageBox(hwnd, "Out of thread resources", |
528 | "Key generation error", |
529 | MB_OK | MB_ICONERROR); |
530 | sfree(params); |
531 | } else { |
532 | state->generation_thread_exists = TRUE; |
533 | } |
534 | } |
535 | } |
536 | break; |
6e522441 |
537 | case WM_COMMAND: |
538 | switch (LOWORD(wParam)) { |
539 | case IDC_COMMENTEDIT: |
540 | if (HIWORD(wParam) == EN_CHANGE) { |
32874aea |
541 | state = (struct MainDlgState *) |
542 | GetWindowLong(hwnd, GWL_USERDATA); |
543 | if (state->key_exists) { |
544 | HWND editctl = GetDlgItem(hwnd, IDC_COMMENTEDIT); |
545 | int len = GetWindowTextLength(editctl); |
546 | if (*state->commentptr) |
547 | sfree(*state->commentptr); |
548 | *state->commentptr = smalloc(len + 1); |
549 | GetWindowText(editctl, *state->commentptr, len + 1); |
2e8324fc |
550 | if (state->ssh2) { |
32874aea |
551 | setupbigedit2(hwnd, IDC_KEYDISPLAY, |
552 | &state->ssh2key); |
2e8324fc |
553 | } else { |
554 | setupbigedit1(hwnd, IDC_KEYDISPLAY, &state->key); |
555 | } |
556 | } |
557 | } |
6e522441 |
558 | break; |
559 | case IDC_ABOUT: |
560 | EnableWindow(hwnd, 0); |
32874aea |
561 | DialogBox(hinst, MAKEINTRESOURCE(213), NULL, AboutProc); |
6e522441 |
562 | EnableWindow(hwnd, 1); |
32874aea |
563 | SetActiveWindow(hwnd); |
6e522441 |
564 | return 0; |
32874aea |
565 | case IDC_GENERATE: |
566 | state = |
567 | (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); |
568 | if (!state->generation_thread_exists) { |
569 | BOOL ok; |
570 | state->keysize = GetDlgItemInt(hwnd, IDC_BITS, &ok, FALSE); |
571 | if (!ok) |
572 | state->keysize = DEFAULT_KEYSIZE; |
65a22376 |
573 | /* If we ever introduce a new key type, check it here! */ |
574 | state->ssh2 = !IsDlgButtonChecked(hwnd, IDC_KEYSSH1); |
32874aea |
575 | if (state->keysize < 256) { |
576 | int ret = MessageBox(hwnd, |
577 | "PuTTYgen will not generate a key" |
578 | " smaller than 256 bits.\n" |
579 | "Key length reset to 256. Continue?", |
580 | "PuTTYgen Warning", |
581 | MB_ICONWARNING | MB_OKCANCEL); |
582 | if (ret != IDOK) |
583 | break; |
584 | state->keysize = 256; |
585 | SetDlgItemInt(hwnd, IDC_BITS, 256, FALSE); |
586 | } |
587 | hidemany(hwnd, nokey_ids, TRUE); |
588 | hidemany(hwnd, generating_ids, FALSE); |
589 | hidemany(hwnd, gotkey_ids, TRUE); |
590 | EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 0); |
591 | EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 0); |
592 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); |
593 | state->key_exists = FALSE; |
594 | SetDlgItemText(hwnd, IDC_GENERATING, entropy_msg); |
595 | state->collecting_entropy = TRUE; |
596 | |
597 | /* |
598 | * My brief statistical tests on mouse movements |
599 | * suggest that there are about 2.5 bits of |
600 | * randomness in the x position, 2.5 in the y |
601 | * position, and 1.7 in the message time, making |
602 | * 5.7 bits of unpredictability per mouse movement. |
603 | * However, other people have told me it's far less |
604 | * than that, so I'm going to be stupidly cautious |
605 | * and knock that down to a nice round 2. With this |
606 | * method, we require two words per mouse movement, |
607 | * so with 2 bits per mouse movement we expect 2 |
608 | * bits every 2 words. |
609 | */ |
610 | state->entropy_required = (state->keysize / 2) * 2; |
611 | state->entropy_got = 0; |
612 | state->entropy_size = (state->entropy_required * |
613 | sizeof(*state->entropy)); |
614 | state->entropy = smalloc(state->entropy_size); |
615 | |
616 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, |
617 | MAKELPARAM(0, state->entropy_required)); |
618 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); |
619 | } |
620 | break; |
621 | case IDC_SAVE: |
622 | state = |
623 | (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); |
624 | if (state->key_exists) { |
625 | char filename[FILENAME_MAX]; |
626 | char passphrase[PASSPHRASE_MAXLEN]; |
627 | char passphrase2[PASSPHRASE_MAXLEN]; |
628 | GetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, |
629 | passphrase, sizeof(passphrase)); |
630 | GetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, |
631 | passphrase2, sizeof(passphrase2)); |
a5470c60 |
632 | if (strcmp(passphrase, passphrase2)) { |
32874aea |
633 | MessageBox(hwnd, |
a5470c60 |
634 | "The two passphrases given do not match.", |
32874aea |
635 | "PuTTYgen Error", MB_OK | MB_ICONERROR); |
a5470c60 |
636 | break; |
637 | } |
32874aea |
638 | if (!*passphrase) { |
639 | int ret; |
640 | ret = MessageBox(hwnd, |
641 | "Are you sure you want to save this key\n" |
642 | "without a passphrase to protect it?", |
643 | "PuTTYgen Warning", |
644 | MB_YESNO | MB_ICONWARNING); |
645 | if (ret != IDYES) |
646 | break; |
647 | } |
648 | if (prompt_keyfile(hwnd, "Save private key as:", |
649 | filename, 1)) { |
bdea0743 |
650 | int ret; |
18790478 |
651 | FILE *fp = fopen(filename, "r"); |
652 | if (fp) { |
32874aea |
653 | char buffer[FILENAME_MAX + 80]; |
18790478 |
654 | fclose(fp); |
655 | sprintf(buffer, "Overwrite existing file\n%.*s?", |
656 | FILENAME_MAX, filename); |
657 | ret = MessageBox(hwnd, buffer, "PuTTYgen Warning", |
658 | MB_YESNO | MB_ICONWARNING); |
659 | if (ret != IDYES) |
660 | break; |
661 | } |
65a22376 |
662 | if (state->ssh2) { |
663 | ret = ssh2_save_userkey(filename, &state->ssh2key, |
32874aea |
664 | *passphrase ? passphrase : |
665 | NULL); |
65a22376 |
666 | } else { |
667 | ret = saversakey(filename, &state->key, |
668 | *passphrase ? passphrase : NULL); |
669 | } |
bdea0743 |
670 | if (ret <= 0) { |
671 | MessageBox(hwnd, "Unable to save key file", |
32874aea |
672 | "PuTTYgen Error", MB_OK | MB_ICONERROR); |
bdea0743 |
673 | } |
32874aea |
674 | } |
675 | } |
676 | break; |
677 | case IDC_LOAD: |
678 | state = |
679 | (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); |
680 | if (!state->generation_thread_exists) { |
681 | char filename[FILENAME_MAX]; |
682 | if (prompt_keyfile(hwnd, "Load private key:", filename, 0)) { |
683 | char passphrase[PASSPHRASE_MAXLEN]; |
684 | int needs_pass; |
65a22376 |
685 | int ver; |
32874aea |
686 | int ret; |
687 | char *comment; |
688 | struct PassphraseProcStruct pps; |
689 | struct RSAKey newkey1; |
65a22376 |
690 | struct ssh2_userkey *newkey2; |
691 | |
692 | ver = keyfile_version(filename); |
693 | if (ver == 0) { |
32874aea |
694 | MessageBox(NULL, "Couldn't load private key.", |
695 | "PuTTYgen Error", MB_OK | MB_ICONERROR); |
65a22376 |
696 | break; |
697 | } |
6e522441 |
698 | |
65a22376 |
699 | comment = NULL; |
700 | if (ver == 1) |
701 | needs_pass = rsakey_encrypted(filename, &comment); |
702 | else |
32874aea |
703 | needs_pass = |
704 | ssh2_userkey_encrypted(filename, &comment); |
705 | pps.passphrase = passphrase; |
706 | pps.comment = comment; |
707 | do { |
708 | if (needs_pass) { |
709 | int dlgret; |
710 | dlgret = DialogBoxParam(hinst, |
711 | MAKEINTRESOURCE(210), |
712 | NULL, PassphraseProc, |
713 | (LPARAM) & pps); |
714 | if (!dlgret) { |
715 | ret = -2; |
716 | break; |
717 | } |
718 | } else |
719 | *passphrase = '\0'; |
65a22376 |
720 | if (ver == 1) |
32874aea |
721 | ret = |
722 | loadrsakey(filename, &newkey1, passphrase); |
65a22376 |
723 | else { |
32874aea |
724 | newkey2 = |
725 | ssh2_load_userkey(filename, passphrase); |
65a22376 |
726 | if (newkey2 == SSH2_WRONG_PASSPHRASE) |
727 | ret = -1; |
728 | else if (!newkey2) |
729 | ret = 0; |
730 | else |
731 | ret = 1; |
732 | } |
32874aea |
733 | } while (ret == -1); |
734 | if (comment) |
735 | sfree(comment); |
736 | if (ret == 0) { |
737 | MessageBox(NULL, "Couldn't load private key.", |
738 | "PuTTYgen Error", MB_OK | MB_ICONERROR); |
739 | } else if (ret == 1) { |
740 | EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); |
741 | EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); |
742 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); |
743 | /* |
744 | * Now update the key controls with all the |
745 | * key data. |
746 | */ |
747 | { |
748 | SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, |
749 | passphrase); |
750 | SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, |
751 | passphrase); |
65a22376 |
752 | if (ver == 1) { |
753 | char buf[128]; |
754 | char *savecomment; |
755 | |
756 | state->ssh2 = FALSE; |
757 | state->commentptr = &state->key.comment; |
758 | state->key = newkey1; |
759 | |
760 | /* |
761 | * Set the key fingerprint. |
762 | */ |
763 | savecomment = state->key.comment; |
32874aea |
764 | state->key.comment = NULL; |
765 | rsa_fingerprint(buf, sizeof(buf), |
766 | &state->key); |
767 | state->key.comment = savecomment; |
65a22376 |
768 | |
769 | SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); |
770 | /* |
771 | * Construct a decimal representation |
772 | * of the key, for pasting into |
773 | * .ssh/authorized_keys on a Unix box. |
774 | */ |
32874aea |
775 | setupbigedit1(hwnd, IDC_KEYDISPLAY, |
776 | &state->key); |
65a22376 |
777 | } else { |
778 | char *fp; |
779 | char *savecomment; |
780 | |
781 | state->ssh2 = TRUE; |
32874aea |
782 | state->commentptr = |
783 | &state->ssh2key.comment; |
784 | state->ssh2key = *newkey2; /* structure copy */ |
65a22376 |
785 | sfree(newkey2); |
786 | |
787 | savecomment = state->ssh2key.comment; |
32874aea |
788 | state->ssh2key.comment = NULL; |
789 | fp = |
790 | state->ssh2key.alg-> |
791 | fingerprint(state->ssh2key.data); |
792 | state->ssh2key.comment = savecomment; |
65a22376 |
793 | |
794 | SetDlgItemText(hwnd, IDC_FINGERPRINT, fp); |
795 | sfree(fp); |
796 | |
32874aea |
797 | setupbigedit2(hwnd, IDC_KEYDISPLAY, |
798 | &state->ssh2key); |
65a22376 |
799 | } |
32874aea |
800 | SetDlgItemText(hwnd, IDC_COMMENTEDIT, |
801 | *state->commentptr); |
802 | } |
803 | /* |
804 | * Finally, hide the progress bar and show |
805 | * the key data. |
806 | */ |
807 | hidemany(hwnd, nokey_ids, TRUE); |
808 | hidemany(hwnd, generating_ids, TRUE); |
809 | hidemany(hwnd, gotkey_ids, FALSE); |
810 | state->key_exists = TRUE; |
811 | } |
812 | } |
813 | } |
814 | break; |
6e522441 |
815 | } |
816 | return 0; |
817 | case WM_DONEKEY: |
32874aea |
818 | state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); |
819 | state->generation_thread_exists = FALSE; |
820 | state->key_exists = TRUE; |
821 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, PROGRESSRANGE, |
822 | 0); |
823 | EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); |
824 | EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); |
825 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); |
3b4c5899 |
826 | if (state->ssh2) { |
827 | state->ssh2key.data = &state->key; |
828 | state->ssh2key.alg = &ssh_rsa; |
65a22376 |
829 | state->commentptr = &state->ssh2key.comment; |
3b4c5899 |
830 | } else { |
65a22376 |
831 | state->commentptr = &state->key.comment; |
3b4c5899 |
832 | } |
32874aea |
833 | /* |
834 | * Invent a comment for the key. We'll do this by including |
835 | * the date in it. This will be so horrifyingly ugly that |
836 | * the user will immediately want to change it, which is |
837 | * what we want :-) |
838 | */ |
839 | *state->commentptr = smalloc(30); |
840 | { |
841 | time_t t; |
842 | struct tm *tm; |
843 | time(&t); |
844 | tm = localtime(&t); |
845 | strftime(*state->commentptr, 30, "rsa-key-%Y%m%d", tm); |
846 | } |
847 | |
848 | /* |
849 | * Now update the key controls with all the key data. |
850 | */ |
851 | { |
65a22376 |
852 | char *savecomment; |
32874aea |
853 | /* |
854 | * Blank passphrase, initially. This isn't dangerous, |
855 | * because we will warn (Are You Sure?) before allowing |
856 | * the user to save an unprotected private key. |
857 | */ |
858 | SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, ""); |
859 | SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, ""); |
860 | /* |
861 | * Set the comment. |
862 | */ |
863 | SetDlgItemText(hwnd, IDC_COMMENTEDIT, *state->commentptr); |
864 | /* |
865 | * Set the key fingerprint. |
866 | */ |
65a22376 |
867 | savecomment = *state->commentptr; |
868 | *state->commentptr = NULL; |
32874aea |
869 | if (state->ssh2) { |
65a22376 |
870 | char *fp; |
32874aea |
871 | fp = state->ssh2key.alg->fingerprint(state->ssh2key.data); |
65a22376 |
872 | SetDlgItemText(hwnd, IDC_FINGERPRINT, fp); |
873 | sfree(fp); |
874 | } else { |
875 | char buf[128]; |
32874aea |
876 | rsa_fingerprint(buf, sizeof(buf), &state->key); |
65a22376 |
877 | SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); |
32874aea |
878 | } |
65a22376 |
879 | *state->commentptr = savecomment; |
32874aea |
880 | /* |
881 | * Construct a decimal representation of the key, for |
882 | * pasting into .ssh/authorized_keys on a Unix box. |
883 | */ |
65a22376 |
884 | if (state->ssh2) { |
885 | setupbigedit2(hwnd, IDC_KEYDISPLAY, &state->ssh2key); |
886 | } else { |
887 | setupbigedit1(hwnd, IDC_KEYDISPLAY, &state->key); |
888 | } |
32874aea |
889 | } |
890 | /* |
891 | * Finally, hide the progress bar and show the key data. |
892 | */ |
893 | hidemany(hwnd, nokey_ids, TRUE); |
894 | hidemany(hwnd, generating_ids, TRUE); |
895 | hidemany(hwnd, gotkey_ids, FALSE); |
896 | break; |
6e522441 |
897 | case WM_CLOSE: |
32874aea |
898 | state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); |
899 | sfree(state); |
900 | EndDialog(hwnd, 1); |
6e522441 |
901 | return 0; |
902 | } |
903 | return 0; |
904 | } |
905 | |
32874aea |
906 | int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) |
907 | { |
8b8cf871 |
908 | InitCommonControls(); |
6e522441 |
909 | hinst = inst; |
910 | random_init(); |
32874aea |
911 | return DialogBox(hinst, MAKEINTRESOURCE(201), NULL, |
912 | MainDlgProc) != IDOK; |
6e522441 |
913 | } |