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 | |
41 | static void progress_update(void *param, int phase, int iprogress) { |
42 | struct progress *p = (struct progress *)param; |
43 | unsigned progress = iprogress; |
44 | int position; |
45 | |
46 | switch (phase) { |
47 | case -1: |
48 | p->phase1param = 0x10000 + progress; |
49 | p->phase1current = 0x10000; p->phase1n = 0; |
50 | return; |
51 | case -2: |
52 | p->phase2param = 0x10000 + progress; |
53 | p->phase2current = 0x10000; p->phase2n = 0; |
54 | return; |
55 | case -3: |
56 | p->phase3mult = PHASE3TOTAL / progress; |
57 | return; |
58 | case 1: |
59 | while (p->phase1n < progress) { |
60 | p->phase1n++; |
61 | p->phase1current *= p->phase1param; |
62 | p->phase1current /= 0x10000; |
63 | } |
64 | position = PHASE1START + 0x10000 - p->phase1current; |
65 | break; |
66 | case 2: |
67 | while (p->phase2n < progress) { |
68 | p->phase2n++; |
69 | p->phase2current *= p->phase2param; |
70 | p->phase2current /= 0x10000; |
71 | } |
72 | position = PHASE2START + 0x10000 - p->phase2current; |
73 | break; |
74 | case 3: |
75 | position = PHASE3START + progress * p->phase3mult; |
76 | break; |
77 | } |
78 | |
79 | SendMessage(p->progbar, PBM_SETPOS, position / DIVISOR, 0); |
80 | } |
81 | |
82 | extern char ver[]; |
83 | |
84 | #define PASSPHRASE_MAXLEN 512 |
85 | |
86 | struct PassphraseProcStruct { |
87 | char *passphrase; |
88 | char *comment; |
89 | }; |
90 | |
91 | /* |
92 | * Dialog-box function for the passphrase box. |
93 | */ |
94 | static int CALLBACK PassphraseProc(HWND hwnd, UINT msg, |
95 | WPARAM wParam, LPARAM lParam) { |
96 | static char *passphrase; |
97 | struct PassphraseProcStruct *p; |
98 | |
99 | switch (msg) { |
100 | case WM_INITDIALOG: |
101 | SetForegroundWindow(hwnd); |
102 | SetWindowPos (hwnd, HWND_TOP, 0, 0, 0, 0, |
103 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
104 | p = (struct PassphraseProcStruct *)lParam; |
105 | passphrase = p->passphrase; |
106 | if (p->comment) |
107 | SetDlgItemText(hwnd, 101, p->comment); |
108 | *passphrase = 0; |
109 | return 0; |
110 | case WM_COMMAND: |
111 | switch (LOWORD(wParam)) { |
112 | case IDOK: |
113 | if (*passphrase) |
114 | EndDialog (hwnd, 1); |
115 | else |
116 | MessageBeep (0); |
117 | return 0; |
118 | case IDCANCEL: |
119 | EndDialog (hwnd, 0); |
120 | return 0; |
121 | case 102: /* edit box */ |
122 | if (HIWORD(wParam) == EN_CHANGE) { |
123 | GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1); |
124 | passphrase[PASSPHRASE_MAXLEN-1] = '\0'; |
125 | } |
126 | return 0; |
127 | } |
128 | return 0; |
129 | case WM_CLOSE: |
130 | EndDialog (hwnd, 0); |
131 | return 0; |
132 | } |
133 | return 0; |
134 | } |
135 | |
136 | /* |
137 | * Prompt for a key file. Assumes the filename buffer is of size |
138 | * FILENAME_MAX. |
139 | */ |
140 | static int prompt_keyfile(HWND hwnd, char *dlgtitle, |
141 | char *filename, int save) { |
142 | OPENFILENAME of; |
143 | memset(&of, 0, sizeof(of)); |
144 | #ifdef OPENFILENAME_SIZE_VERSION_400 |
145 | of.lStructSize = OPENFILENAME_SIZE_VERSION_400; |
146 | #else |
147 | of.lStructSize = sizeof(of); |
148 | #endif |
149 | of.hwndOwner = hwnd; |
150 | of.lpstrFilter = "All Files\0*\0\0\0"; |
151 | of.lpstrCustomFilter = NULL; |
152 | of.nFilterIndex = 1; |
153 | of.lpstrFile = filename; *filename = '\0'; |
154 | of.nMaxFile = FILENAME_MAX; |
155 | of.lpstrFileTitle = NULL; |
156 | of.lpstrInitialDir = NULL; |
157 | of.lpstrTitle = dlgtitle; |
158 | of.Flags = 0; |
159 | if (save) |
160 | return GetSaveFileName(&of); |
161 | else |
162 | return GetOpenFileName(&of); |
163 | } |
164 | |
165 | /* |
166 | * This function is needed to link with the DES code. We need not |
167 | * have it do anything at all. |
168 | */ |
169 | void logevent(char *msg) { |
170 | } |
171 | |
172 | /* |
173 | * Dialog-box function for the Licence box. |
174 | */ |
175 | static int CALLBACK LicenceProc (HWND hwnd, UINT msg, |
176 | WPARAM wParam, LPARAM lParam) { |
177 | switch (msg) { |
178 | case WM_INITDIALOG: |
179 | return 1; |
180 | case WM_COMMAND: |
181 | switch (LOWORD(wParam)) { |
182 | case IDOK: |
183 | EndDialog(hwnd, 1); |
184 | return 0; |
185 | } |
186 | return 0; |
187 | case WM_CLOSE: |
188 | EndDialog(hwnd, 1); |
189 | return 0; |
190 | } |
191 | return 0; |
192 | } |
193 | |
194 | /* |
195 | * Dialog-box function for the About box. |
196 | */ |
197 | static int CALLBACK AboutProc (HWND hwnd, UINT msg, |
198 | WPARAM wParam, LPARAM lParam) { |
199 | switch (msg) { |
200 | case WM_INITDIALOG: |
201 | SetDlgItemText (hwnd, 100, ver); |
202 | return 1; |
203 | case WM_COMMAND: |
204 | switch (LOWORD(wParam)) { |
205 | case IDOK: |
206 | EndDialog(hwnd, 1); |
207 | return 0; |
208 | case 101: |
209 | EnableWindow(hwnd, 0); |
210 | DialogBox (hinst, MAKEINTRESOURCE(214), NULL, LicenceProc); |
211 | EnableWindow(hwnd, 1); |
212 | SetActiveWindow(hwnd); |
213 | return 0; |
214 | } |
215 | return 0; |
216 | case WM_CLOSE: |
217 | EndDialog(hwnd, 1); |
218 | return 0; |
219 | } |
220 | return 0; |
221 | } |
222 | |
223 | /* |
224 | * Thread to generate a key. |
225 | */ |
226 | struct rsa_key_thread_params { |
227 | HWND progressbar; /* notify this with progress */ |
228 | HWND dialog; /* notify this on completion */ |
0c2986d0 |
229 | int keysize; /* bits in key */ |
6e522441 |
230 | struct RSAKey *key; |
231 | struct RSAAux *aux; |
232 | }; |
233 | static DWORD WINAPI generate_rsa_key_thread(void *param) { |
234 | struct rsa_key_thread_params *params = |
235 | (struct rsa_key_thread_params *)param; |
236 | struct progress prog; |
237 | prog.progbar = params->progressbar; |
238 | |
0c2986d0 |
239 | rsa_generate(params->key, params->aux, |
240 | params->keysize, progress_update, &prog); |
6e522441 |
241 | |
242 | PostMessage(params->dialog, WM_DONEKEY, 0, 0); |
243 | |
244 | free(params); |
245 | return 0; |
246 | } |
247 | |
248 | struct MainDlgState { |
249 | int collecting_entropy; |
250 | int generation_thread_exists; |
251 | int key_exists; |
252 | int entropy_got, entropy_required, entropy_size; |
0c2986d0 |
253 | int keysize; |
6e522441 |
254 | unsigned *entropy; |
255 | struct RSAKey key; |
256 | struct RSAAux aux; |
257 | }; |
258 | |
259 | static void hidemany(HWND hwnd, const int *ids, int hideit) { |
260 | while (*ids) { |
261 | ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW)); |
262 | } |
263 | } |
264 | |
265 | static void setupbigedit(HWND hwnd, int id, struct RSAKey *key) { |
266 | char *buffer; |
267 | char *dec1, *dec2; |
268 | |
269 | dec1 = bignum_decimal(key->exponent); |
270 | dec2 = bignum_decimal(key->modulus); |
271 | buffer = malloc(strlen(dec1)+strlen(dec2)+ |
272 | strlen(key->comment)+30); |
273 | sprintf(buffer, "%d %s %s %s", |
274 | ssh1_bignum_bitcount(key->modulus), |
275 | dec1, dec2, key->comment); |
276 | SetDlgItemText(hwnd, id, buffer); |
277 | free(dec1); |
278 | free(dec2); |
279 | free(buffer); |
280 | } |
281 | |
282 | /* |
283 | * Dialog-box function for the main PuTTYgen dialog box. |
284 | */ |
285 | static int CALLBACK MainDlgProc (HWND hwnd, UINT msg, |
286 | WPARAM wParam, LPARAM lParam) { |
287 | enum { |
288 | controlidstart = 100, |
289 | IDC_TITLE, |
290 | IDC_BOX_KEY, IDC_BOXT_KEY, |
291 | IDC_NOKEY, |
292 | IDC_GENERATING, |
293 | IDC_PROGRESS, |
294 | IDC_PKSTATIC, IDC_KEYDISPLAY, |
295 | IDC_FPSTATIC, IDC_FINGERPRINT, |
296 | IDC_COMMENTSTATIC, IDC_COMMENTEDIT, |
a5470c60 |
297 | IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT, |
298 | IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, |
6e522441 |
299 | IDC_BOX_ACTIONS, IDC_BOXT_ACTIONS, |
300 | IDC_GENSTATIC, IDC_GENERATE, |
301 | IDC_LOADSTATIC, IDC_LOAD, |
302 | IDC_SAVESTATIC, IDC_SAVE, |
0c2986d0 |
303 | IDC_BOX_PARAMS, IDC_BOXT_PARAMS, |
304 | IDC_BITSSTATIC, IDC_BITS, |
6e522441 |
305 | IDC_ABOUT, |
306 | }; |
307 | static const int nokey_ids[] = { IDC_NOKEY, 0 }; |
308 | static const int generating_ids[] = { IDC_GENERATING, IDC_PROGRESS, 0 }; |
309 | static const int gotkey_ids[] = { |
310 | IDC_PKSTATIC, IDC_KEYDISPLAY, |
311 | IDC_FPSTATIC, IDC_FINGERPRINT, |
312 | IDC_COMMENTSTATIC, IDC_COMMENTEDIT, |
a5470c60 |
313 | IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT, |
314 | IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 0 }; |
6e522441 |
315 | static const char generating_msg[] = |
316 | "Please wait while a key is generated..."; |
317 | static const char entropy_msg[] = |
47c98e43 |
318 | "Please generate some randomness by moving the mouse over the blank area."; |
6e522441 |
319 | struct MainDlgState *state; |
320 | |
321 | switch (msg) { |
322 | case WM_INITDIALOG: |
323 | state = malloc(sizeof(*state)); |
324 | state->generation_thread_exists = FALSE; |
325 | state->key_exists = FALSE; |
326 | SetWindowLong(hwnd, GWL_USERDATA, (LONG)state); |
327 | { |
328 | struct ctlpos cp, cp2; |
329 | |
a5470c60 |
330 | /* Accelerators used: acglops */ |
331 | |
6e522441 |
332 | ctlposinit(&cp, hwnd, 10, 10, 10); |
333 | bartitle(&cp, "Public and private key generation for PuTTY", |
334 | IDC_TITLE); |
335 | beginbox(&cp, "Key", |
336 | IDC_BOX_KEY, IDC_BOXT_KEY); |
337 | cp2 = cp; |
338 | statictext(&cp2, "No key.", IDC_NOKEY); |
339 | cp2 = cp; |
340 | statictext(&cp2, "", |
341 | IDC_GENERATING); |
342 | progressbar(&cp2, IDC_PROGRESS); |
343 | bigeditctrl(&cp, |
344 | "&Public key for pasting into authorized_keys file:", |
345 | IDC_PKSTATIC, IDC_KEYDISPLAY, 7); |
346 | SendDlgItemMessage(hwnd, IDC_KEYDISPLAY, EM_SETREADONLY, 1, 0); |
347 | staticedit(&cp, "Key fingerprint:", IDC_FPSTATIC, |
348 | IDC_FINGERPRINT, 70); |
349 | SendDlgItemMessage(hwnd, IDC_FINGERPRINT, EM_SETREADONLY, 1, 0); |
350 | staticedit(&cp, "Key &comment:", IDC_COMMENTSTATIC, |
351 | IDC_COMMENTEDIT, 70); |
a5470c60 |
352 | staticpassedit(&cp, "Key p&assphrase:", IDC_PASSPHRASE1STATIC, |
353 | IDC_PASSPHRASE1EDIT, 70); |
354 | staticpassedit(&cp, "C&onfirm passphrase:", IDC_PASSPHRASE2STATIC, |
355 | IDC_PASSPHRASE2EDIT, 70); |
6e522441 |
356 | endbox(&cp); |
357 | beginbox(&cp, "Actions", |
358 | IDC_BOX_ACTIONS, IDC_BOXT_ACTIONS); |
359 | staticbtn(&cp, "Generate a public/private key pair", |
360 | IDC_GENSTATIC, "&Generate", IDC_GENERATE); |
361 | staticbtn(&cp, "Load an existing private key file", |
362 | IDC_LOADSTATIC, "&Load", IDC_LOAD); |
363 | staticbtn(&cp, "Save the generated key to a new file", |
364 | IDC_SAVESTATIC, "&Save", IDC_SAVE); |
365 | endbox(&cp); |
ec68f104 |
366 | beginbox(&cp, "Parameters", |
367 | IDC_BOX_PARAMS, IDC_BOXT_PARAMS); |
47c98e43 |
368 | staticedit(&cp, "Number of &bits in a generated key:", |
0c2986d0 |
369 | IDC_BITSSTATIC, IDC_BITS, 20); |
370 | endbox(&cp); |
6e522441 |
371 | } |
0c2986d0 |
372 | SetDlgItemInt(hwnd, IDC_BITS, DEFAULT_KEYSIZE, FALSE); |
373 | |
6e522441 |
374 | /* |
375 | * Initially, hide the progress bar and the key display, |
376 | * and show the no-key display. Also disable the Save |
377 | * button, because with no key we obviously can't save |
378 | * anything. |
379 | */ |
380 | hidemany(hwnd, nokey_ids, FALSE); |
381 | hidemany(hwnd, generating_ids, TRUE); |
382 | hidemany(hwnd, gotkey_ids, TRUE); |
383 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); |
384 | |
385 | return 1; |
386 | case WM_MOUSEMOVE: |
387 | state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); |
388 | if (state->collecting_entropy) { |
389 | state->entropy[state->entropy_got++] = lParam; |
390 | state->entropy[state->entropy_got++] = GetMessageTime(); |
391 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, |
392 | state->entropy_got, 0); |
393 | if (state->entropy_got >= state->entropy_required) { |
394 | struct rsa_key_thread_params *params; |
395 | DWORD threadid; |
396 | |
397 | /* |
398 | * Seed the entropy pool |
399 | */ |
400 | random_add_heavynoise(state->entropy, state->entropy_size); |
401 | memset(state->entropy, 0, state->entropy_size); |
402 | free(state->entropy); |
403 | |
404 | SetDlgItemText(hwnd, IDC_GENERATING, generating_msg); |
405 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, |
406 | MAKELPARAM(0, PROGRESSRANGE)); |
407 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); |
408 | |
409 | params = malloc(sizeof(*params)); |
410 | params->progressbar = GetDlgItem(hwnd, IDC_PROGRESS); |
411 | params->dialog = hwnd; |
0c2986d0 |
412 | params->keysize = state->keysize; |
6e522441 |
413 | params->key = &state->key; |
414 | params->aux = &state->aux; |
415 | |
416 | if (!CreateThread(NULL, 0, generate_rsa_key_thread, |
417 | params, 0, &threadid)) { |
418 | MessageBox(hwnd, "Out of thread resources", |
419 | "Key generation error", |
420 | MB_OK | MB_ICONERROR); |
421 | free(params); |
422 | } else { |
423 | state->generation_thread_exists = TRUE; |
424 | state->collecting_entropy = FALSE; |
425 | } |
426 | } |
427 | } |
428 | break; |
429 | case WM_COMMAND: |
430 | switch (LOWORD(wParam)) { |
431 | case IDC_COMMENTEDIT: |
432 | if (HIWORD(wParam) == EN_CHANGE) { |
433 | state = (struct MainDlgState *) |
434 | GetWindowLong(hwnd, GWL_USERDATA); |
435 | if (state->key_exists) { |
436 | HWND editctl = GetDlgItem(hwnd, IDC_COMMENTEDIT); |
437 | int len = GetWindowTextLength(editctl); |
438 | if (state->key.comment) |
439 | free(state->key.comment); |
440 | state->key.comment = malloc(len+1); |
441 | GetWindowText(editctl, state->key.comment, len+1); |
442 | } |
443 | } |
444 | break; |
445 | case IDC_ABOUT: |
446 | EnableWindow(hwnd, 0); |
447 | DialogBox (hinst, MAKEINTRESOURCE(213), NULL, AboutProc); |
448 | EnableWindow(hwnd, 1); |
449 | SetActiveWindow(hwnd); |
450 | return 0; |
451 | case IDC_GENERATE: |
452 | state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); |
453 | if (!state->generation_thread_exists) { |
454 | hidemany(hwnd, nokey_ids, TRUE); |
455 | hidemany(hwnd, generating_ids, FALSE); |
456 | hidemany(hwnd, gotkey_ids, TRUE); |
457 | EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 0); |
458 | EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 0); |
459 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); |
460 | state->key_exists = FALSE; |
461 | SetDlgItemText(hwnd, IDC_GENERATING, entropy_msg); |
462 | state->collecting_entropy = TRUE; |
0c2986d0 |
463 | { |
464 | BOOL ok; |
465 | state->keysize = GetDlgItemInt(hwnd, IDC_BITS, |
466 | &ok, FALSE); |
467 | if (!ok) state->keysize = DEFAULT_KEYSIZE; |
468 | } |
6e522441 |
469 | |
470 | /* |
471 | * My brief statistical tests on mouse movements |
47c98e43 |
472 | * suggest that there are about 2.5 bits of |
473 | * randomness in the x position, 2.5 in the y |
6e522441 |
474 | * position, and 1.7 in the message time, making |
47c98e43 |
475 | * 5.7 bits of unpredictability per mouse movement. |
476 | * However, other people have told me it's far less |
477 | * than that, so I'm going to be stupidly cautious |
478 | * and knock that down to a nice round 2. With this |
479 | * method, we require two words per mouse movement, |
480 | * so with 2 bits per mouse movement we expect 2 |
481 | * bits every 2 words. |
6e522441 |
482 | */ |
47c98e43 |
483 | state->entropy_required = (state->keysize/2) * 2; |
6e522441 |
484 | state->entropy_got = 0; |
485 | state->entropy_size = (state->entropy_required * |
486 | sizeof(*state->entropy)); |
487 | state->entropy = malloc(state->entropy_size); |
488 | |
489 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, |
490 | MAKELPARAM(0, state->entropy_required)); |
491 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); |
492 | } |
493 | break; |
494 | case IDC_SAVE: |
495 | state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); |
496 | if (state->key_exists) { |
497 | char filename[FILENAME_MAX]; |
498 | char passphrase[PASSPHRASE_MAXLEN]; |
a5470c60 |
499 | char passphrase2[PASSPHRASE_MAXLEN]; |
500 | GetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, |
501 | passphrase, sizeof(passphrase)); |
502 | GetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, |
503 | passphrase2, sizeof(passphrase2)); |
504 | if (strcmp(passphrase, passphrase2)) { |
505 | MessageBox(hwnd, |
506 | "The two passphrases given do not match.", |
507 | "PuTTYgen Error", |
508 | MB_OK | MB_ICONERROR); |
509 | break; |
510 | } |
6e522441 |
511 | if (!*passphrase) { |
512 | int ret; |
513 | ret = MessageBox(hwnd, |
514 | "Are you sure you want to save this key\n" |
515 | "without a passphrase to protect it?", |
516 | "PuTTYgen Warning", |
517 | MB_YESNO | MB_ICONWARNING); |
518 | if (ret != IDYES) |
519 | break; |
520 | } |
521 | if (prompt_keyfile(hwnd, "Save private key as:", |
522 | filename, 1)) { |
bdea0743 |
523 | int ret; |
18790478 |
524 | FILE *fp = fopen(filename, "r"); |
525 | if (fp) { |
18790478 |
526 | char buffer[FILENAME_MAX+80]; |
527 | fclose(fp); |
528 | sprintf(buffer, "Overwrite existing file\n%.*s?", |
529 | FILENAME_MAX, filename); |
530 | ret = MessageBox(hwnd, buffer, "PuTTYgen Warning", |
531 | MB_YESNO | MB_ICONWARNING); |
532 | if (ret != IDYES) |
533 | break; |
534 | } |
bdea0743 |
535 | ret = saversakey(filename, &state->key, &state->aux, |
536 | *passphrase ? passphrase : NULL); |
537 | if (ret <= 0) { |
538 | MessageBox(hwnd, "Unable to save key file", |
539 | "PuTTYgen Error", |
540 | MB_OK | MB_ICONERROR); |
541 | } |
6e522441 |
542 | } |
543 | } |
544 | break; |
545 | case IDC_LOAD: |
546 | state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); |
547 | if (!state->generation_thread_exists) { |
548 | char filename[FILENAME_MAX]; |
549 | if (prompt_keyfile(hwnd, "Load private key:", |
550 | filename, 0)) { |
551 | char passphrase[PASSPHRASE_MAXLEN]; |
552 | int needs_pass; |
553 | int ret; |
554 | char *comment; |
555 | struct PassphraseProcStruct pps; |
556 | struct RSAKey newkey; |
557 | struct RSAAux newaux; |
558 | |
559 | needs_pass = rsakey_encrypted(filename, &comment); |
560 | pps.passphrase = passphrase; |
561 | pps.comment = comment; |
562 | do { |
563 | if (needs_pass) { |
564 | int dlgret; |
565 | dlgret = DialogBoxParam(hinst, |
566 | MAKEINTRESOURCE(210), |
567 | NULL, PassphraseProc, |
568 | (LPARAM)&pps); |
569 | if (!dlgret) { |
570 | ret = -2; |
571 | break; |
572 | } |
573 | } else |
574 | *passphrase = '\0'; |
575 | ret = loadrsakey(filename, &newkey, &newaux, |
576 | passphrase); |
577 | } while (ret == -1); |
578 | if (comment) free(comment); |
579 | if (ret == 0) { |
580 | MessageBox(NULL, "Couldn't load private key.", |
581 | "PuTTYgen Error", MB_OK | MB_ICONERROR); |
582 | } else if (ret == 1) { |
583 | state->key = newkey; |
584 | state->aux = newaux; |
585 | |
586 | EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); |
587 | EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); |
588 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); |
589 | /* |
590 | * Now update the key controls with all the |
591 | * key data. |
592 | */ |
593 | { |
594 | char buf[128]; |
a5470c60 |
595 | SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, |
596 | passphrase); |
597 | SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, |
6e522441 |
598 | passphrase); |
599 | SetDlgItemText(hwnd, IDC_COMMENTEDIT, |
600 | state->key.comment); |
601 | /* |
602 | * Set the key fingerprint. |
603 | */ |
604 | { |
605 | char *savecomment = state->key.comment; |
606 | state->key.comment = NULL; |
607 | rsa_fingerprint(buf, sizeof(buf), &state->key); |
608 | state->key.comment = savecomment; |
609 | } |
610 | SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); |
611 | /* |
612 | * Construct a decimal representation |
613 | * of the key, for pasting into |
614 | * .ssh/authorized_keys on a Unix box. |
615 | */ |
616 | setupbigedit(hwnd, IDC_KEYDISPLAY, &state->key); |
617 | } |
618 | /* |
619 | * Finally, hide the progress bar and show |
620 | * the key data. |
621 | */ |
622 | hidemany(hwnd, nokey_ids, TRUE); |
623 | hidemany(hwnd, generating_ids, TRUE); |
624 | hidemany(hwnd, gotkey_ids, FALSE); |
625 | state->key_exists = TRUE; |
626 | } |
627 | } |
628 | } |
629 | break; |
630 | } |
631 | return 0; |
632 | case WM_DONEKEY: |
633 | state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); |
634 | state->generation_thread_exists = FALSE; |
635 | state->key_exists = TRUE; |
636 | SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, PROGRESSRANGE, 0); |
637 | EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); |
638 | EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); |
639 | EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); |
640 | /* |
641 | * Invent a comment for the key. We'll do this by including |
642 | * the date in it. This will be so horrifyingly ugly that |
643 | * the user will immediately want to change it, which is |
644 | * what we want :-) |
645 | */ |
646 | state->key.comment = malloc(30); |
647 | { |
648 | time_t t; |
649 | struct tm *tm; |
650 | time(&t); |
651 | tm = localtime(&t); |
652 | strftime(state->key.comment, 30, "rsa-key-%Y%m%d", tm); |
653 | } |
654 | |
655 | /* |
656 | * Now update the key controls with all the key data. |
657 | */ |
658 | { |
659 | char buf[128]; |
660 | /* |
661 | * Blank passphrase, initially. This isn't dangerous, |
662 | * because we will warn (Are You Sure?) before allowing |
663 | * the user to save an unprotected private key. |
664 | */ |
a5470c60 |
665 | SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, ""); |
666 | SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, ""); |
6e522441 |
667 | /* |
668 | * Set the comment. |
669 | */ |
670 | SetDlgItemText(hwnd, IDC_COMMENTEDIT, state->key.comment); |
671 | /* |
672 | * Set the key fingerprint. |
673 | */ |
674 | { |
675 | char *savecomment = state->key.comment; |
676 | state->key.comment = NULL; |
677 | rsa_fingerprint(buf, sizeof(buf), &state->key); |
678 | state->key.comment = savecomment; |
679 | } |
680 | SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); |
681 | /* |
682 | * Construct a decimal representation of the key, for |
683 | * pasting into .ssh/authorized_keys on a Unix box. |
684 | */ |
685 | setupbigedit(hwnd, IDC_KEYDISPLAY, &state->key); |
686 | } |
687 | /* |
688 | * Finally, hide the progress bar and show the key data. |
689 | */ |
690 | hidemany(hwnd, nokey_ids, TRUE); |
691 | hidemany(hwnd, generating_ids, TRUE); |
692 | hidemany(hwnd, gotkey_ids, FALSE); |
693 | break; |
694 | case WM_CLOSE: |
695 | state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); |
696 | free(state); |
697 | EndDialog(hwnd, 1); |
698 | return 0; |
699 | } |
700 | return 0; |
701 | } |
702 | |
703 | int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) { |
8b8cf871 |
704 | InitCommonControls(); |
6e522441 |
705 | hinst = inst; |
706 | random_init(); |
707 | return DialogBox(hinst, MAKEINTRESOURCE(201), NULL, MainDlgProc) != IDOK; |
708 | } |