~mdw / sgt / putty / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Wez Furlong's patch to add xterm mouse reporting and proper mouse
[sgt/putty] / puttygen.c
CommitLineData
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)
34struct progress {
35 unsigned phase1param, phase1current, phase1n;
36 unsigned phase2param, phase2current, phase2n;
37 unsigned phase3mult;
38 HWND progbar;
39};
40
41static 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
82extern char ver[];
83
84#define PASSPHRASE_MAXLEN 512
85
86struct PassphraseProcStruct {
87 char *passphrase;
88 char *comment;
89};
90
91/*
92 * Dialog-box function for the passphrase box.
93 */
94static int CALLBACK PassphraseProc(HWND hwnd, UINT msg,
95 WPARAM wParam, LPARAM lParam) {
8e1feb27 96 static char *passphrase = NULL;
6e522441 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);
65a22376 104
105 /*
106 * Centre the window.
107 */
108 { /* centre the window */
109 RECT rs, rd;
110 HWND hw;
111
112 hw = GetDesktopWindow();
113 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
114 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
115 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
116 rd.right-rd.left, rd.bottom-rd.top, TRUE);
117 }
118
6e522441 119 p = (struct PassphraseProcStruct *)lParam;
120 passphrase = p->passphrase;
121 if (p->comment)
122 SetDlgItemText(hwnd, 101, p->comment);
123 *passphrase = 0;
8e1feb27 124 SetDlgItemText(hwnd, 102, passphrase);
6e522441 125 return 0;
126 case WM_COMMAND:
127 switch (LOWORD(wParam)) {
128 case IDOK:
129 if (*passphrase)
130 EndDialog (hwnd, 1);
131 else
132 MessageBeep (0);
133 return 0;
134 case IDCANCEL:
135 EndDialog (hwnd, 0);
136 return 0;
137 case 102: /* edit box */
8e1feb27 138 if ((HIWORD(wParam) == EN_CHANGE) && passphrase) {
6e522441 139 GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1);
140 passphrase[PASSPHRASE_MAXLEN-1] = '\0';
141 }
142 return 0;
143 }
144 return 0;
145 case WM_CLOSE:
146 EndDialog (hwnd, 0);
147 return 0;
148 }
149 return 0;
150}
151
152/*
153 * Prompt for a key file. Assumes the filename buffer is of size
154 * FILENAME_MAX.
155 */
156static int prompt_keyfile(HWND hwnd, char *dlgtitle,
157 char *filename, int save) {
158 OPENFILENAME of;
159 memset(&of, 0, sizeof(of));
160#ifdef OPENFILENAME_SIZE_VERSION_400
161 of.lStructSize = OPENFILENAME_SIZE_VERSION_400;
162#else
163 of.lStructSize = sizeof(of);
164#endif
165 of.hwndOwner = hwnd;
166 of.lpstrFilter = "All Files\0*\0\0\0";
167 of.lpstrCustomFilter = NULL;
168 of.nFilterIndex = 1;
169 of.lpstrFile = filename; *filename = '\0';
170 of.nMaxFile = FILENAME_MAX;
171 of.lpstrFileTitle = NULL;
172 of.lpstrInitialDir = NULL;
173 of.lpstrTitle = dlgtitle;
174 of.Flags = 0;
175 if (save)
176 return GetSaveFileName(&of);
177 else
178 return GetOpenFileName(&of);
179}
180
181/*
182 * This function is needed to link with the DES code. We need not
183 * have it do anything at all.
184 */
185void logevent(char *msg) {
186}
187
188/*
189 * Dialog-box function for the Licence box.
190 */
191static int CALLBACK LicenceProc (HWND hwnd, UINT msg,
192 WPARAM wParam, LPARAM lParam) {
193 switch (msg) {
194 case WM_INITDIALOG:
65a22376 195 /*
196 * Centre the window.
197 */
198 { /* centre the window */
199 RECT rs, rd;
200 HWND hw;
201
202 hw = GetDesktopWindow();
203 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
204 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
205 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
206 rd.right-rd.left, rd.bottom-rd.top, TRUE);
207 }
208
6e522441 209 return 1;
210 case WM_COMMAND:
211 switch (LOWORD(wParam)) {
212 case IDOK:
213 EndDialog(hwnd, 1);
214 return 0;
215 }
216 return 0;
217 case WM_CLOSE:
218 EndDialog(hwnd, 1);
219 return 0;
220 }
221 return 0;
222}
223
224/*
225 * Dialog-box function for the About box.
226 */
227static int CALLBACK AboutProc (HWND hwnd, UINT msg,
228 WPARAM wParam, LPARAM lParam) {
229 switch (msg) {
230 case WM_INITDIALOG:
65a22376 231 /*
232 * Centre the window.
233 */
234 { /* centre the window */
235 RECT rs, rd;
236 HWND hw;
237
238 hw = GetDesktopWindow();
239 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
240 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
241 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
242 rd.right-rd.left, rd.bottom-rd.top, TRUE);
243 }
244
6e522441 245 SetDlgItemText (hwnd, 100, ver);
246 return 1;
247 case WM_COMMAND:
248 switch (LOWORD(wParam)) {
249 case IDOK:
250 EndDialog(hwnd, 1);
251 return 0;
252 case 101:
253 EnableWindow(hwnd, 0);
254 DialogBox (hinst, MAKEINTRESOURCE(214), NULL, LicenceProc);
255 EnableWindow(hwnd, 1);
256 SetActiveWindow(hwnd);
257 return 0;
258 }
259 return 0;
260 case WM_CLOSE:
261 EndDialog(hwnd, 1);
262 return 0;
263 }
264 return 0;
265}
266
267/*
268 * Thread to generate a key.
269 */
270struct rsa_key_thread_params {
271 HWND progressbar; /* notify this with progress */
272 HWND dialog; /* notify this on completion */
0c2986d0 273 int keysize; /* bits in key */
6e522441 274 struct RSAKey *key;
6e522441 275};
276static DWORD WINAPI generate_rsa_key_thread(void *param) {
277 struct rsa_key_thread_params *params =
278 (struct rsa_key_thread_params *)param;
279 struct progress prog;
280 prog.progbar = params->progressbar;
281
65a22376 282 rsa_generate(params->key, params->keysize, progress_update, &prog);
6e522441 283
284 PostMessage(params->dialog, WM_DONEKEY, 0, 0);
285
dcbde236 286 sfree(params);
6e522441 287 return 0;
288}
289
290struct MainDlgState {
291 int collecting_entropy;
292 int generation_thread_exists;
293 int key_exists;
294 int entropy_got, entropy_required, entropy_size;
0c2986d0 295 int keysize;
65a22376 296 int ssh2;
297 char **commentptr; /* points to key.comment or ssh2key.comment */
298 struct ssh2_userkey ssh2key;
6e522441 299 unsigned *entropy;
300 struct RSAKey key;
6e522441 301};
302
303static void hidemany(HWND hwnd, const int *ids, int hideit) {
304 while (*ids) {
305 ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW));
306 }
307}
308
65a22376 309static void setupbigedit1(HWND hwnd, int id, struct RSAKey *key) {
6e522441 310 char *buffer;
311 char *dec1, *dec2;
312
313 dec1 = bignum_decimal(key->exponent);
314 dec2 = bignum_decimal(key->modulus);
dcbde236 315 buffer = smalloc(strlen(dec1)+strlen(dec2)+
316 strlen(key->comment)+30);
6e522441 317 sprintf(buffer, "%d %s %s %s",
ddecd643 318 bignum_bitcount(key->modulus),
6e522441 319 dec1, dec2, key->comment);
320 SetDlgItemText(hwnd, id, buffer);
dcbde236 321 sfree(dec1);
322 sfree(dec2);
323 sfree(buffer);
6e522441 324}
325
65a22376 326static void setupbigedit2(HWND hwnd, int id, struct ssh2_userkey *key) {
327 unsigned char *pub_blob;
328 char *buffer, *p;
44fb739e 329 int pub_len;
65a22376 330 int i;
331
332 pub_blob = key->alg->public_blob(key->data, &pub_len);
333 buffer = smalloc(strlen(key->alg->name) + 4*((pub_len+2)/3) +
334 strlen(key->comment) + 3);
335 strcpy(buffer, key->alg->name);
336 p = buffer + strlen(buffer);
337 *p++ = ' ';
338 i = 0;
339 while (i < pub_len) {
340 int n = (pub_len-i < 3 ? pub_len-i : 3);
341 base64_encode_atom(pub_blob+i, n, p);
342 i += n;
343 p += 4;
344 }
345 *p++ = ' ';
346 strcpy(p, key->comment);
347 SetDlgItemText(hwnd, id, buffer);
348 sfree(pub_blob);
349 sfree(buffer);
350}
351
6e522441 352/*
353 * Dialog-box function for the main PuTTYgen dialog box.
354 */
355static int CALLBACK MainDlgProc (HWND hwnd, UINT msg,
356 WPARAM wParam, LPARAM lParam) {
357 enum {
358 controlidstart = 100,
359 IDC_TITLE,
630ce4de 360 IDC_BOX_KEY,
6e522441 361 IDC_NOKEY,
362 IDC_GENERATING,
363 IDC_PROGRESS,
364 IDC_PKSTATIC, IDC_KEYDISPLAY,
365 IDC_FPSTATIC, IDC_FINGERPRINT,
366 IDC_COMMENTSTATIC, IDC_COMMENTEDIT,
a5470c60 367 IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT,
368 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT,
630ce4de 369 IDC_BOX_ACTIONS,
6e522441 370 IDC_GENSTATIC, IDC_GENERATE,
371 IDC_LOADSTATIC, IDC_LOAD,
372 IDC_SAVESTATIC, IDC_SAVE,
630ce4de 373 IDC_BOX_PARAMS,
65a22376 374 IDC_TYPESTATIC, IDC_KEYSSH1, IDC_KEYSSH2RSA,
0c2986d0 375 IDC_BITSSTATIC, IDC_BITS,
6e522441 376 IDC_ABOUT,
377 };
378 static const int nokey_ids[] = { IDC_NOKEY, 0 };
379 static const int generating_ids[] = { IDC_GENERATING, IDC_PROGRESS, 0 };
380 static const int gotkey_ids[] = {
381 IDC_PKSTATIC, IDC_KEYDISPLAY,
382 IDC_FPSTATIC, IDC_FINGERPRINT,
383 IDC_COMMENTSTATIC, IDC_COMMENTEDIT,
a5470c60 384 IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT,
385 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 0 };
6e522441 386 static const char generating_msg[] =
387 "Please wait while a key is generated...";
388 static const char entropy_msg[] =
47c98e43 389 "Please generate some randomness by moving the mouse over the blank area.";
6e522441 390 struct MainDlgState *state;
391
392 switch (msg) {
393 case WM_INITDIALOG:
65a22376 394 /*
395 * Centre the window.
396 */
397 { /* centre the window */
398 RECT rs, rd;
399 HWND hw;
400
401 hw = GetDesktopWindow();
402 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
403 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
404 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
405 rd.right-rd.left, rd.bottom-rd.top, TRUE);
406 }
407
dcbde236 408 state = smalloc(sizeof(*state));
6e522441 409 state->generation_thread_exists = FALSE;
b8957e43 410 state->collecting_entropy = FALSE;
411 state->entropy = NULL;
6e522441 412 state->key_exists = FALSE;
413 SetWindowLong(hwnd, GWL_USERDATA, (LONG)state);
414 {
415 struct ctlpos cp, cp2;
416
a5470c60 417 /* Accelerators used: acglops */
418
6e522441 419 ctlposinit(&cp, hwnd, 10, 10, 10);
420 bartitle(&cp, "Public and private key generation for PuTTY",
421 IDC_TITLE);
422 beginbox(&cp, "Key",
630ce4de 423 IDC_BOX_KEY);
6e522441 424 cp2 = cp;
425 statictext(&cp2, "No key.", IDC_NOKEY);
426 cp2 = cp;
427 statictext(&cp2, "",
428 IDC_GENERATING);
429 progressbar(&cp2, IDC_PROGRESS);
430 bigeditctrl(&cp,
431 "&Public key for pasting into authorized_keys file:",
432 IDC_PKSTATIC, IDC_KEYDISPLAY, 7);
433 SendDlgItemMessage(hwnd, IDC_KEYDISPLAY, EM_SETREADONLY, 1, 0);
434 staticedit(&cp, "Key fingerprint:", IDC_FPSTATIC,
65a22376 435 IDC_FINGERPRINT, 75);
6e522441 436 SendDlgItemMessage(hwnd, IDC_FINGERPRINT, EM_SETREADONLY, 1, 0);
437 staticedit(&cp, "Key &comment:", IDC_COMMENTSTATIC,
65a22376 438 IDC_COMMENTEDIT, 75);
a5470c60 439 staticpassedit(&cp, "Key p&assphrase:", IDC_PASSPHRASE1STATIC,
65a22376 440 IDC_PASSPHRASE1EDIT, 75);
a5470c60 441 staticpassedit(&cp, "C&onfirm passphrase:", IDC_PASSPHRASE2STATIC,
65a22376 442 IDC_PASSPHRASE2EDIT, 75);
6e522441 443 endbox(&cp);
444 beginbox(&cp, "Actions",
630ce4de 445 IDC_BOX_ACTIONS);
6e522441 446 staticbtn(&cp, "Generate a public/private key pair",
447 IDC_GENSTATIC, "&Generate", IDC_GENERATE);
448 staticbtn(&cp, "Load an existing private key file",
449 IDC_LOADSTATIC, "&Load", IDC_LOAD);
450 staticbtn(&cp, "Save the generated key to a new file",
451 IDC_SAVESTATIC, "&Save", IDC_SAVE);
452 endbox(&cp);
ec68f104 453 beginbox(&cp, "Parameters",
630ce4de 454 IDC_BOX_PARAMS);
65a22376 455 radioline(&cp, "Type of key to generate:", IDC_TYPESTATIC, 2,
456 "SSH&1 (RSA)", IDC_KEYSSH1,
457 "SSH2 &RSA", IDC_KEYSSH2RSA, NULL);
47c98e43 458 staticedit(&cp, "Number of &bits in a generated key:",
0c2986d0 459 IDC_BITSSTATIC, IDC_BITS, 20);
460 endbox(&cp);
6e522441 461 }
65a22376 462 CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2RSA, IDC_KEYSSH1);
0c2986d0 463 SetDlgItemInt(hwnd, IDC_BITS, DEFAULT_KEYSIZE, FALSE);
464
6e522441 465 /*
466 * Initially, hide the progress bar and the key display,
467 * and show the no-key display. Also disable the Save
468 * button, because with no key we obviously can't save
469 * anything.
470 */
471 hidemany(hwnd, nokey_ids, FALSE);
472 hidemany(hwnd, generating_ids, TRUE);
473 hidemany(hwnd, gotkey_ids, TRUE);
474 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0);
475
476 return 1;
477 case WM_MOUSEMOVE:
478 state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA);
b8957e43 479 if (state->collecting_entropy &&
480 state->entropy &&
481 state->entropy_got < state->entropy_required) {
6e522441 482 state->entropy[state->entropy_got++] = lParam;
483 state->entropy[state->entropy_got++] = GetMessageTime();
484 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS,
485 state->entropy_got, 0);
486 if (state->entropy_got >= state->entropy_required) {
487 struct rsa_key_thread_params *params;
488 DWORD threadid;
489
490 /*
491 * Seed the entropy pool
492 */
493 random_add_heavynoise(state->entropy, state->entropy_size);
494 memset(state->entropy, 0, state->entropy_size);
dcbde236 495 sfree(state->entropy);
b8957e43 496 state->collecting_entropy = FALSE;
6e522441 497
498 SetDlgItemText(hwnd, IDC_GENERATING, generating_msg);
499 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
500 MAKELPARAM(0, PROGRESSRANGE));
501 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0);
502
dcbde236 503 params = smalloc(sizeof(*params));
6e522441 504 params->progressbar = GetDlgItem(hwnd, IDC_PROGRESS);
505 params->dialog = hwnd;
0c2986d0 506 params->keysize = state->keysize;
6e522441 507 params->key = &state->key;
6e522441 508
509 if (!CreateThread(NULL, 0, generate_rsa_key_thread,
510 params, 0, &threadid)) {
511 MessageBox(hwnd, "Out of thread resources",
512 "Key generation error",
513 MB_OK | MB_ICONERROR);
dcbde236 514 sfree(params);
6e522441 515 } else {
516 state->generation_thread_exists = TRUE;
6e522441 517 }
518 }
519 }
520 break;
521 case WM_COMMAND:
522 switch (LOWORD(wParam)) {
523 case IDC_COMMENTEDIT:
524 if (HIWORD(wParam) == EN_CHANGE) {
525 state = (struct MainDlgState *)
526 GetWindowLong(hwnd, GWL_USERDATA);
527 if (state->key_exists) {
528 HWND editctl = GetDlgItem(hwnd, IDC_COMMENTEDIT);
529 int len = GetWindowTextLength(editctl);
65a22376 530 if (*state->commentptr)
531 sfree(*state->commentptr);
532 *state->commentptr = smalloc(len+1);
533 GetWindowText(editctl, *state->commentptr, len+1);
2e8324fc 534 if (state->ssh2) {
535 setupbigedit2(hwnd, IDC_KEYDISPLAY, &state->ssh2key);
536 } else {
537 setupbigedit1(hwnd, IDC_KEYDISPLAY, &state->key);
538 }
539 }
540 }
6e522441 541 break;
542 case IDC_ABOUT:
543 EnableWindow(hwnd, 0);
544 DialogBox (hinst, MAKEINTRESOURCE(213), NULL, AboutProc);
545 EnableWindow(hwnd, 1);
546 SetActiveWindow(hwnd);
547 return 0;
548 case IDC_GENERATE:
549 state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA);
550 if (!state->generation_thread_exists) {
e28350d4 551 BOOL ok;
552 state->keysize = GetDlgItemInt(hwnd, IDC_BITS,
553 &ok, FALSE);
554 if (!ok) state->keysize = DEFAULT_KEYSIZE;
65a22376 555 /* If we ever introduce a new key type, check it here! */
556 state->ssh2 = !IsDlgButtonChecked(hwnd, IDC_KEYSSH1);
e28350d4 557 if (state->keysize < 256) {
558 int ret = MessageBox(hwnd,
559 "PuTTYgen will not generate a key"
560 " smaller than 256 bits.\n"
561 "Key length reset to 256. Continue?",
562 "PuTTYgen Warning",
563 MB_ICONWARNING | MB_OKCANCEL);
564 if (ret != IDOK)
565 break;
566 state->keysize = 256;
567 SetDlgItemInt(hwnd, IDC_BITS, 256, FALSE);
568 }
6e522441 569 hidemany(hwnd, nokey_ids, TRUE);
570 hidemany(hwnd, generating_ids, FALSE);
571 hidemany(hwnd, gotkey_ids, TRUE);
572 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 0);
573 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 0);
574 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0);
575 state->key_exists = FALSE;
576 SetDlgItemText(hwnd, IDC_GENERATING, entropy_msg);
577 state->collecting_entropy = TRUE;
578
579 /*
580 * My brief statistical tests on mouse movements
47c98e43 581 * suggest that there are about 2.5 bits of
582 * randomness in the x position, 2.5 in the y
6e522441 583 * position, and 1.7 in the message time, making
47c98e43 584 * 5.7 bits of unpredictability per mouse movement.
585 * However, other people have told me it's far less
586 * than that, so I'm going to be stupidly cautious
587 * and knock that down to a nice round 2. With this
588 * method, we require two words per mouse movement,
589 * so with 2 bits per mouse movement we expect 2
590 * bits every 2 words.
6e522441 591 */
47c98e43 592 state->entropy_required = (state->keysize/2) * 2;
6e522441 593 state->entropy_got = 0;
594 state->entropy_size = (state->entropy_required *
595 sizeof(*state->entropy));
dcbde236 596 state->entropy = smalloc(state->entropy_size);
6e522441 597
598 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
599 MAKELPARAM(0, state->entropy_required));
600 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0);
601 }
602 break;
603 case IDC_SAVE:
604 state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA);
605 if (state->key_exists) {
606 char filename[FILENAME_MAX];
607 char passphrase[PASSPHRASE_MAXLEN];
a5470c60 608 char passphrase2[PASSPHRASE_MAXLEN];
609 GetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT,
610 passphrase, sizeof(passphrase));
611 GetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT,
612 passphrase2, sizeof(passphrase2));
613 if (strcmp(passphrase, passphrase2)) {
614 MessageBox(hwnd,
615 "The two passphrases given do not match.",
616 "PuTTYgen Error",
617 MB_OK | MB_ICONERROR);
618 break;
619 }
6e522441 620 if (!*passphrase) {
621 int ret;
622 ret = MessageBox(hwnd,
623 "Are you sure you want to save this key\n"
624 "without a passphrase to protect it?",
625 "PuTTYgen Warning",
626 MB_YESNO | MB_ICONWARNING);
627 if (ret != IDYES)
628 break;
629 }
630 if (prompt_keyfile(hwnd, "Save private key as:",
631 filename, 1)) {
bdea0743 632 int ret;
18790478 633 FILE *fp = fopen(filename, "r");
634 if (fp) {
18790478 635 char buffer[FILENAME_MAX+80];
636 fclose(fp);
637 sprintf(buffer, "Overwrite existing file\n%.*s?",
638 FILENAME_MAX, filename);
639 ret = MessageBox(hwnd, buffer, "PuTTYgen Warning",
640 MB_YESNO | MB_ICONWARNING);
641 if (ret != IDYES)
642 break;
643 }
65a22376 644 if (state->ssh2) {
645 ret = ssh2_save_userkey(filename, &state->ssh2key,
646 *passphrase ? passphrase : NULL);
647 } else {
648 ret = saversakey(filename, &state->key,
649 *passphrase ? passphrase : NULL);
650 }
bdea0743 651 if (ret <= 0) {
652 MessageBox(hwnd, "Unable to save key file",
653 "PuTTYgen Error",
654 MB_OK | MB_ICONERROR);
655 }
6e522441 656 }
657 }
658 break;
659 case IDC_LOAD:
660 state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA);
661 if (!state->generation_thread_exists) {
662 char filename[FILENAME_MAX];
663 if (prompt_keyfile(hwnd, "Load private key:",
664 filename, 0)) {
665 char passphrase[PASSPHRASE_MAXLEN];
666 int needs_pass;
65a22376 667 int ver;
6e522441 668 int ret;
669 char *comment;
670 struct PassphraseProcStruct pps;
65a22376 671 struct RSAKey newkey1;
672 struct ssh2_userkey *newkey2;
673
674 ver = keyfile_version(filename);
675 if (ver == 0) {
676 MessageBox(NULL, "Couldn't load private key.",
677 "PuTTYgen Error", MB_OK | MB_ICONERROR);
678 break;
679 }
6e522441 680
65a22376 681 comment = NULL;
682 if (ver == 1)
683 needs_pass = rsakey_encrypted(filename, &comment);
684 else
685 needs_pass = ssh2_userkey_encrypted(filename, &comment);
6e522441 686 pps.passphrase = passphrase;
687 pps.comment = comment;
688 do {
689 if (needs_pass) {
690 int dlgret;
691 dlgret = DialogBoxParam(hinst,
692 MAKEINTRESOURCE(210),
693 NULL, PassphraseProc,
694 (LPARAM)&pps);
695 if (!dlgret) {
696 ret = -2;
697 break;
698 }
699 } else
700 *passphrase = '\0';
65a22376 701 if (ver == 1)
702 ret = loadrsakey(filename, &newkey1, passphrase);
703 else {
704 newkey2 = ssh2_load_userkey(filename, passphrase);
705 if (newkey2 == SSH2_WRONG_PASSPHRASE)
706 ret = -1;
707 else if (!newkey2)
708 ret = 0;
709 else
710 ret = 1;
711 }
6e522441 712 } while (ret == -1);
dcbde236 713 if (comment) sfree(comment);
6e522441 714 if (ret == 0) {
715 MessageBox(NULL, "Couldn't load private key.",
716 "PuTTYgen Error", MB_OK | MB_ICONERROR);
717 } else if (ret == 1) {
6e522441 718 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
719 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
720 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1);
721 /*
722 * Now update the key controls with all the
723 * key data.
724 */
725 {
a5470c60 726 SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT,
727 passphrase);
728 SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT,
6e522441 729 passphrase);
65a22376 730 if (ver == 1) {
731 char buf[128];
732 char *savecomment;
733
734 state->ssh2 = FALSE;
735 state->commentptr = &state->key.comment;
736 state->key = newkey1;
737
738 /*
739 * Set the key fingerprint.
740 */
741 savecomment = state->key.comment;
6e522441 742 state->key.comment = NULL;
743 rsa_fingerprint(buf, sizeof(buf), &state->key);
744 state->key.comment = savecomment;
65a22376 745
746 SetDlgItemText(hwnd, IDC_FINGERPRINT, buf);
747 /*
748 * Construct a decimal representation
749 * of the key, for pasting into
750 * .ssh/authorized_keys on a Unix box.
751 */
752 setupbigedit1(hwnd, IDC_KEYDISPLAY, &state->key);
753 } else {
754 char *fp;
755 char *savecomment;
756
757 state->ssh2 = TRUE;
758 state->commentptr = &state->ssh2key.comment;
759 state->ssh2key = *newkey2; /* structure copy */
760 sfree(newkey2);
761
762 savecomment = state->ssh2key.comment;
763 state->ssh2key.comment = NULL;
764 fp = state->
765 ssh2key.alg->fingerprint(state->ssh2key.data);
766 state->ssh2key.comment = savecomment;
767
768 SetDlgItemText(hwnd, IDC_FINGERPRINT, fp);
769 sfree(fp);
770
771 setupbigedit2(hwnd, IDC_KEYDISPLAY, &state->ssh2key);
772 }
773 SetDlgItemText(hwnd, IDC_COMMENTEDIT,
774 *state->commentptr);
6e522441 775 }
776 /*
777 * Finally, hide the progress bar and show
778 * the key data.
779 */
780 hidemany(hwnd, nokey_ids, TRUE);
781 hidemany(hwnd, generating_ids, TRUE);
782 hidemany(hwnd, gotkey_ids, FALSE);
783 state->key_exists = TRUE;
784 }
785 }
786 }
787 break;
788 }
789 return 0;
790 case WM_DONEKEY:
791 state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA);
792 state->generation_thread_exists = FALSE;
793 state->key_exists = TRUE;
794 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, PROGRESSRANGE, 0);
795 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
796 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
797 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1);
3b4c5899 798 if (state->ssh2) {
799 state->ssh2key.data = &state->key;
800 state->ssh2key.alg = &ssh_rsa;
65a22376 801 state->commentptr = &state->ssh2key.comment;
3b4c5899 802 } else {
65a22376 803 state->commentptr = &state->key.comment;
3b4c5899 804 }
6e522441 805 /*
806 * Invent a comment for the key. We'll do this by including
807 * the date in it. This will be so horrifyingly ugly that
808 * the user will immediately want to change it, which is
809 * what we want :-)
810 */
65a22376 811 *state->commentptr = smalloc(30);
6e522441 812 {
813 time_t t;
814 struct tm *tm;
815 time(&t);
816 tm = localtime(&t);
65a22376 817 strftime(*state->commentptr, 30, "rsa-key-%Y%m%d", tm);
6e522441 818 }
819
820 /*
821 * Now update the key controls with all the key data.
822 */
823 {
65a22376 824 char *savecomment;
6e522441 825 /*
826 * Blank passphrase, initially. This isn't dangerous,
827 * because we will warn (Are You Sure?) before allowing
828 * the user to save an unprotected private key.
829 */
a5470c60 830 SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, "");
831 SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, "");
6e522441 832 /*
833 * Set the comment.
834 */
65a22376 835 SetDlgItemText(hwnd, IDC_COMMENTEDIT, *state->commentptr);
6e522441 836 /*
837 * Set the key fingerprint.
838 */
65a22376 839 savecomment = *state->commentptr;
840 *state->commentptr = NULL;
841 if (state->ssh2) {
842 char *fp;
843 fp = state->ssh2key.alg->fingerprint(state->ssh2key.data);
844 SetDlgItemText(hwnd, IDC_FINGERPRINT, fp);
845 sfree(fp);
846 } else {
847 char buf[128];
6e522441 848 rsa_fingerprint(buf, sizeof(buf), &state->key);
65a22376 849 SetDlgItemText(hwnd, IDC_FINGERPRINT, buf);
6e522441 850 }
65a22376 851 *state->commentptr = savecomment;
6e522441 852 /*
853 * Construct a decimal representation of the key, for
854 * pasting into .ssh/authorized_keys on a Unix box.
855 */
65a22376 856 if (state->ssh2) {
857 setupbigedit2(hwnd, IDC_KEYDISPLAY, &state->ssh2key);
858 } else {
859 setupbigedit1(hwnd, IDC_KEYDISPLAY, &state->key);
860 }
6e522441 861 }
862 /*
863 * Finally, hide the progress bar and show the key data.
864 */
865 hidemany(hwnd, nokey_ids, TRUE);
866 hidemany(hwnd, generating_ids, TRUE);
867 hidemany(hwnd, gotkey_ids, FALSE);
868 break;
869 case WM_CLOSE:
870 state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA);
dcbde236 871 sfree(state);
6e522441 872 EndDialog(hwnd, 1);
873 return 0;
874 }
875 return 0;
876}
877
878int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) {
8b8cf871 879 InitCommonControls();
6e522441 880 hinst = inst;
881 random_init();
882 return DialogBox(hinst, MAKEINTRESOURCE(201), NULL, MainDlgProc) != IDOK;
883}
Simon Tatham's PuTTY GUI SSH client; import of svn://svn.tartarus.org/sgt/putty