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More confusing "(BYTE *) & val" style punctuation.
[sgt/putty] / windows / winpgen.c
1 /*
2 * PuTTY key generation front end (Windows).
3 */
4
5 #include <time.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8
9 #define PUTTY_DO_GLOBALS
10
11 #include "putty.h"
12 #include "ssh.h"
13
14 #include <commctrl.h>
15
16 #ifdef MSVC4
17 #define ICON_BIG 1
18 #endif
19
20 #define WM_DONEKEY (WM_XUSER + 1)
21
22 #define DEFAULT_KEYSIZE 1024
23
24 static char *cmdline_keyfile = NULL;
25
26 /*
27 * Print a modal (Really Bad) message box and perform a fatal exit.
28 */
29 void modalfatalbox(char *fmt, ...)
30 {
31 va_list ap;
32 char *stuff;
33
34 va_start(ap, fmt);
35 stuff = dupvprintf(fmt, ap);
36 va_end(ap);
37 MessageBox(NULL, stuff, "PuTTYgen Fatal Error",
38 MB_SYSTEMMODAL | MB_ICONERROR | MB_OK);
39 sfree(stuff);
40 exit(1);
41 }
42
43 /* ----------------------------------------------------------------------
44 * Progress report code. This is really horrible :-)
45 */
46 #define PROGRESSRANGE 65535
47 #define MAXPHASE 5
48 struct progress {
49 int nphases;
50 struct {
51 int exponential;
52 unsigned startpoint, total;
53 unsigned param, current, n; /* if exponential */
54 unsigned mult; /* if linear */
55 } phases[MAXPHASE];
56 unsigned total, divisor, range;
57 HWND progbar;
58 };
59
60 static void progress_update(void *param, int action, int phase, int iprogress)
61 {
62 struct progress *p = (struct progress *) param;
63 unsigned progress = iprogress;
64 int position;
65
66 if (action < PROGFN_READY && p->nphases < phase)
67 p->nphases = phase;
68 switch (action) {
69 case PROGFN_INITIALISE:
70 p->nphases = 0;
71 break;
72 case PROGFN_LIN_PHASE:
73 p->phases[phase-1].exponential = 0;
74 p->phases[phase-1].mult = p->phases[phase].total / progress;
75 break;
76 case PROGFN_EXP_PHASE:
77 p->phases[phase-1].exponential = 1;
78 p->phases[phase-1].param = 0x10000 + progress;
79 p->phases[phase-1].current = p->phases[phase-1].total;
80 p->phases[phase-1].n = 0;
81 break;
82 case PROGFN_PHASE_EXTENT:
83 p->phases[phase-1].total = progress;
84 break;
85 case PROGFN_READY:
86 {
87 unsigned total = 0;
88 int i;
89 for (i = 0; i < p->nphases; i++) {
90 p->phases[i].startpoint = total;
91 total += p->phases[i].total;
92 }
93 p->total = total;
94 p->divisor = ((p->total + PROGRESSRANGE - 1) / PROGRESSRANGE);
95 p->range = p->total / p->divisor;
96 SendMessage(p->progbar, PBM_SETRANGE, 0, MAKELPARAM(0, p->range));
97 }
98 break;
99 case PROGFN_PROGRESS:
100 if (p->phases[phase-1].exponential) {
101 while (p->phases[phase-1].n < progress) {
102 p->phases[phase-1].n++;
103 p->phases[phase-1].current *= p->phases[phase-1].param;
104 p->phases[phase-1].current /= 0x10000;
105 }
106 position = (p->phases[phase-1].startpoint +
107 p->phases[phase-1].total - p->phases[phase-1].current);
108 } else {
109 position = (p->phases[phase-1].startpoint +
110 progress * p->phases[phase-1].mult);
111 }
112 SendMessage(p->progbar, PBM_SETPOS, position / p->divisor, 0);
113 break;
114 }
115 }
116
117 extern char ver[];
118
119 #define PASSPHRASE_MAXLEN 512
120
121 struct PassphraseProcStruct {
122 char *passphrase;
123 char *comment;
124 };
125
126 /*
127 * Dialog-box function for the passphrase box.
128 */
129 static int CALLBACK PassphraseProc(HWND hwnd, UINT msg,
130 WPARAM wParam, LPARAM lParam)
131 {
132 static char *passphrase = NULL;
133 struct PassphraseProcStruct *p;
134
135 switch (msg) {
136 case WM_INITDIALOG:
137 SetForegroundWindow(hwnd);
138 SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0,
139 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
140
141 /*
142 * Centre the window.
143 */
144 { /* centre the window */
145 RECT rs, rd;
146 HWND hw;
147
148 hw = GetDesktopWindow();
149 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
150 MoveWindow(hwnd,
151 (rs.right + rs.left + rd.left - rd.right) / 2,
152 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
153 rd.right - rd.left, rd.bottom - rd.top, TRUE);
154 }
155
156 p = (struct PassphraseProcStruct *) lParam;
157 passphrase = p->passphrase;
158 if (p->comment)
159 SetDlgItemText(hwnd, 101, p->comment);
160 *passphrase = 0;
161 SetDlgItemText(hwnd, 102, passphrase);
162 return 0;
163 case WM_COMMAND:
164 switch (LOWORD(wParam)) {
165 case IDOK:
166 if (*passphrase)
167 EndDialog(hwnd, 1);
168 else
169 MessageBeep(0);
170 return 0;
171 case IDCANCEL:
172 EndDialog(hwnd, 0);
173 return 0;
174 case 102: /* edit box */
175 if ((HIWORD(wParam) == EN_CHANGE) && passphrase) {
176 GetDlgItemText(hwnd, 102, passphrase,
177 PASSPHRASE_MAXLEN - 1);
178 passphrase[PASSPHRASE_MAXLEN - 1] = '\0';
179 }
180 return 0;
181 }
182 return 0;
183 case WM_CLOSE:
184 EndDialog(hwnd, 0);
185 return 0;
186 }
187 return 0;
188 }
189
190 /*
191 * Prompt for a key file. Assumes the filename buffer is of size
192 * FILENAME_MAX.
193 */
194 static int prompt_keyfile(HWND hwnd, char *dlgtitle,
195 char *filename, int save, int ppk)
196 {
197 OPENFILENAME of;
198 memset(&of, 0, sizeof(of));
199 of.hwndOwner = hwnd;
200 if (ppk) {
201 of.lpstrFilter = "PuTTY Private Key Files (*.ppk)\0*.ppk\0"
202 "All Files (*.*)\0*\0\0\0";
203 of.lpstrDefExt = ".ppk";
204 } else {
205 of.lpstrFilter = "All Files (*.*)\0*\0\0\0";
206 }
207 of.lpstrCustomFilter = NULL;
208 of.nFilterIndex = 1;
209 of.lpstrFile = filename;
210 *filename = '\0';
211 of.nMaxFile = FILENAME_MAX;
212 of.lpstrFileTitle = NULL;
213 of.lpstrTitle = dlgtitle;
214 of.Flags = 0;
215 return request_file(NULL, &of, FALSE, save);
216 }
217
218 /*
219 * Dialog-box function for the Licence box.
220 */
221 static int CALLBACK LicenceProc(HWND hwnd, UINT msg,
222 WPARAM wParam, LPARAM lParam)
223 {
224 switch (msg) {
225 case WM_INITDIALOG:
226 /*
227 * Centre the window.
228 */
229 { /* centre the window */
230 RECT rs, rd;
231 HWND hw;
232
233 hw = GetDesktopWindow();
234 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
235 MoveWindow(hwnd,
236 (rs.right + rs.left + rd.left - rd.right) / 2,
237 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
238 rd.right - rd.left, rd.bottom - rd.top, TRUE);
239 }
240
241 return 1;
242 case WM_COMMAND:
243 switch (LOWORD(wParam)) {
244 case IDOK:
245 case IDCANCEL:
246 EndDialog(hwnd, 1);
247 return 0;
248 }
249 return 0;
250 case WM_CLOSE:
251 EndDialog(hwnd, 1);
252 return 0;
253 }
254 return 0;
255 }
256
257 /*
258 * Dialog-box function for the About box.
259 */
260 static int CALLBACK AboutProc(HWND hwnd, UINT msg,
261 WPARAM wParam, LPARAM lParam)
262 {
263 switch (msg) {
264 case WM_INITDIALOG:
265 /*
266 * Centre the window.
267 */
268 { /* centre the window */
269 RECT rs, rd;
270 HWND hw;
271
272 hw = GetDesktopWindow();
273 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
274 MoveWindow(hwnd,
275 (rs.right + rs.left + rd.left - rd.right) / 2,
276 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
277 rd.right - rd.left, rd.bottom - rd.top, TRUE);
278 }
279
280 SetDlgItemText(hwnd, 100, ver);
281 return 1;
282 case WM_COMMAND:
283 switch (LOWORD(wParam)) {
284 case IDOK:
285 case IDCANCEL:
286 EndDialog(hwnd, 1);
287 return 0;
288 case 101:
289 EnableWindow(hwnd, 0);
290 DialogBox(hinst, MAKEINTRESOURCE(214), hwnd, LicenceProc);
291 EnableWindow(hwnd, 1);
292 SetActiveWindow(hwnd);
293 return 0;
294 }
295 return 0;
296 case WM_CLOSE:
297 EndDialog(hwnd, 1);
298 return 0;
299 }
300 return 0;
301 }
302
303 /*
304 * Thread to generate a key.
305 */
306 struct rsa_key_thread_params {
307 HWND progressbar; /* notify this with progress */
308 HWND dialog; /* notify this on completion */
309 int keysize; /* bits in key */
310 int is_dsa;
311 struct RSAKey *key;
312 struct dss_key *dsskey;
313 };
314 static DWORD WINAPI generate_rsa_key_thread(void *param)
315 {
316 struct rsa_key_thread_params *params =
317 (struct rsa_key_thread_params *) param;
318 struct progress prog;
319 prog.progbar = params->progressbar;
320
321 progress_update(&prog, PROGFN_INITIALISE, 0, 0);
322
323 if (params->is_dsa)
324 dsa_generate(params->dsskey, params->keysize, progress_update, &prog);
325 else
326 rsa_generate(params->key, params->keysize, progress_update, &prog);
327
328 PostMessage(params->dialog, WM_DONEKEY, 0, 0);
329
330 sfree(params);
331 return 0;
332 }
333
334 struct MainDlgState {
335 int collecting_entropy;
336 int generation_thread_exists;
337 int key_exists;
338 int entropy_got, entropy_required, entropy_size;
339 int keysize;
340 int ssh2, is_dsa;
341 char **commentptr; /* points to key.comment or ssh2key.comment */
342 struct ssh2_userkey ssh2key;
343 unsigned *entropy;
344 struct RSAKey key;
345 struct dss_key dsskey;
346 HMENU filemenu, keymenu, cvtmenu;
347 };
348
349 static void hidemany(HWND hwnd, const int *ids, int hideit)
350 {
351 while (*ids) {
352 ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW));
353 }
354 }
355
356 static void setupbigedit1(HWND hwnd, int id, int idstatic, struct RSAKey *key)
357 {
358 char *buffer;
359 char *dec1, *dec2;
360
361 dec1 = bignum_decimal(key->exponent);
362 dec2 = bignum_decimal(key->modulus);
363 buffer = dupprintf("%d %s %s %s", bignum_bitcount(key->modulus),
364 dec1, dec2, key->comment);
365 SetDlgItemText(hwnd, id, buffer);
366 SetDlgItemText(hwnd, idstatic,
367 "&Public key for pasting into authorized_keys file:");
368 sfree(dec1);
369 sfree(dec2);
370 sfree(buffer);
371 }
372
373 static void setupbigedit2(HWND hwnd, int id, int idstatic,
374 struct ssh2_userkey *key)
375 {
376 unsigned char *pub_blob;
377 char *buffer, *p;
378 int pub_len;
379 int i;
380
381 pub_blob = key->alg->public_blob(key->data, &pub_len);
382 buffer = snewn(strlen(key->alg->name) + 4 * ((pub_len + 2) / 3) +
383 strlen(key->comment) + 3, char);
384 strcpy(buffer, key->alg->name);
385 p = buffer + strlen(buffer);
386 *p++ = ' ';
387 i = 0;
388 while (i < pub_len) {
389 int n = (pub_len - i < 3 ? pub_len - i : 3);
390 base64_encode_atom(pub_blob + i, n, p);
391 i += n;
392 p += 4;
393 }
394 *p++ = ' ';
395 strcpy(p, key->comment);
396 SetDlgItemText(hwnd, id, buffer);
397 SetDlgItemText(hwnd, idstatic, "&Public key for pasting into "
398 "OpenSSH authorized_keys file:");
399 sfree(pub_blob);
400 sfree(buffer);
401 }
402
403 static int save_ssh1_pubkey(char *filename, struct RSAKey *key)
404 {
405 char *dec1, *dec2;
406 FILE *fp;
407
408 dec1 = bignum_decimal(key->exponent);
409 dec2 = bignum_decimal(key->modulus);
410 fp = fopen(filename, "wb");
411 if (!fp)
412 return 0;
413 fprintf(fp, "%d %s %s %s\n",
414 bignum_bitcount(key->modulus), dec1, dec2, key->comment);
415 fclose(fp);
416 sfree(dec1);
417 sfree(dec2);
418 return 1;
419 }
420
421 /*
422 * Warn about the obsolescent key file format.
423 */
424 void old_keyfile_warning(void)
425 {
426 static const char mbtitle[] = "PuTTY Key File Warning";
427 static const char message[] =
428 "You are loading an SSH 2 private key which has an\n"
429 "old version of the file format. This means your key\n"
430 "file is not fully tamperproof. Future versions of\n"
431 "PuTTY may stop supporting this private key format,\n"
432 "so we recommend you convert your key to the new\n"
433 "format.\n"
434 "\n"
435 "Once the key is loaded into PuTTYgen, you can perform\n"
436 "this conversion simply by saving it again.";
437
438 MessageBox(NULL, message, mbtitle, MB_OK);
439 }
440
441 static int save_ssh2_pubkey(char *filename, struct ssh2_userkey *key)
442 {
443 unsigned char *pub_blob;
444 char *p;
445 int pub_len;
446 int i, column;
447 FILE *fp;
448
449 pub_blob = key->alg->public_blob(key->data, &pub_len);
450
451 fp = fopen(filename, "wb");
452 if (!fp)
453 return 0;
454
455 fprintf(fp, "---- BEGIN SSH2 PUBLIC KEY ----\n");
456
457 fprintf(fp, "Comment: \"");
458 for (p = key->comment; *p; p++) {
459 if (*p == '\\' || *p == '\"')
460 fputc('\\', fp);
461 fputc(*p, fp);
462 }
463 fprintf(fp, "\"\n");
464
465 i = 0;
466 column = 0;
467 while (i < pub_len) {
468 char buf[5];
469 int n = (pub_len - i < 3 ? pub_len - i : 3);
470 base64_encode_atom(pub_blob + i, n, buf);
471 i += n;
472 buf[4] = '\0';
473 fputs(buf, fp);
474 if (++column >= 16) {
475 fputc('\n', fp);
476 column = 0;
477 }
478 }
479 if (column > 0)
480 fputc('\n', fp);
481
482 fprintf(fp, "---- END SSH2 PUBLIC KEY ----\n");
483 fclose(fp);
484 sfree(pub_blob);
485 return 1;
486 }
487
488 enum {
489 controlidstart = 100,
490 IDC_QUIT,
491 IDC_TITLE,
492 IDC_BOX_KEY,
493 IDC_NOKEY,
494 IDC_GENERATING,
495 IDC_PROGRESS,
496 IDC_PKSTATIC, IDC_KEYDISPLAY,
497 IDC_FPSTATIC, IDC_FINGERPRINT,
498 IDC_COMMENTSTATIC, IDC_COMMENTEDIT,
499 IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT,
500 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT,
501 IDC_BOX_ACTIONS,
502 IDC_GENSTATIC, IDC_GENERATE,
503 IDC_LOADSTATIC, IDC_LOAD,
504 IDC_SAVESTATIC, IDC_SAVE, IDC_SAVEPUB,
505 IDC_BOX_PARAMS,
506 IDC_TYPESTATIC, IDC_KEYSSH1, IDC_KEYSSH2RSA, IDC_KEYSSH2DSA,
507 IDC_BITSSTATIC, IDC_BITS,
508 IDC_ABOUT,
509 IDC_GIVEHELP,
510 IDC_IMPORT, IDC_EXPORT_OPENSSH, IDC_EXPORT_SSHCOM
511 };
512
513 static const int nokey_ids[] = { IDC_NOKEY, 0 };
514 static const int generating_ids[] = { IDC_GENERATING, IDC_PROGRESS, 0 };
515 static const int gotkey_ids[] = {
516 IDC_PKSTATIC, IDC_KEYDISPLAY,
517 IDC_FPSTATIC, IDC_FINGERPRINT,
518 IDC_COMMENTSTATIC, IDC_COMMENTEDIT,
519 IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT,
520 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 0
521 };
522
523 /*
524 * Small UI helper function to switch the state of the main dialog
525 * by enabling and disabling controls and menu items.
526 */
527 void ui_set_state(HWND hwnd, struct MainDlgState *state, int status)
528 {
529 int type;
530
531 switch (status) {
532 case 0: /* no key */
533 hidemany(hwnd, nokey_ids, FALSE);
534 hidemany(hwnd, generating_ids, TRUE);
535 hidemany(hwnd, gotkey_ids, TRUE);
536 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
537 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
538 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0);
539 EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 0);
540 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 1);
541 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 1);
542 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 1);
543 EnableWindow(GetDlgItem(hwnd, IDC_BITS), 1);
544 EnableMenuItem(state->filemenu, IDC_LOAD, MF_ENABLED|MF_BYCOMMAND);
545 EnableMenuItem(state->filemenu, IDC_SAVE, MF_GRAYED|MF_BYCOMMAND);
546 EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_GRAYED|MF_BYCOMMAND);
547 EnableMenuItem(state->keymenu, IDC_GENERATE, MF_ENABLED|MF_BYCOMMAND);
548 EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_ENABLED|MF_BYCOMMAND);
549 EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA, MF_ENABLED|MF_BYCOMMAND);
550 EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA, MF_ENABLED|MF_BYCOMMAND);
551 EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_ENABLED|MF_BYCOMMAND);
552 EnableMenuItem(state->cvtmenu, IDC_EXPORT_OPENSSH,
553 MF_GRAYED|MF_BYCOMMAND);
554 EnableMenuItem(state->cvtmenu, IDC_EXPORT_SSHCOM,
555 MF_GRAYED|MF_BYCOMMAND);
556 break;
557 case 1: /* generating key */
558 hidemany(hwnd, nokey_ids, TRUE);
559 hidemany(hwnd, generating_ids, FALSE);
560 hidemany(hwnd, gotkey_ids, TRUE);
561 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 0);
562 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 0);
563 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0);
564 EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 0);
565 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 0);
566 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 0);
567 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 0);
568 EnableWindow(GetDlgItem(hwnd, IDC_BITS), 0);
569 EnableMenuItem(state->filemenu, IDC_LOAD, MF_GRAYED|MF_BYCOMMAND);
570 EnableMenuItem(state->filemenu, IDC_SAVE, MF_GRAYED|MF_BYCOMMAND);
571 EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_GRAYED|MF_BYCOMMAND);
572 EnableMenuItem(state->keymenu, IDC_GENERATE, MF_GRAYED|MF_BYCOMMAND);
573 EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_GRAYED|MF_BYCOMMAND);
574 EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA, MF_GRAYED|MF_BYCOMMAND);
575 EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA, MF_GRAYED|MF_BYCOMMAND);
576 EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_GRAYED|MF_BYCOMMAND);
577 EnableMenuItem(state->cvtmenu, IDC_EXPORT_OPENSSH,
578 MF_GRAYED|MF_BYCOMMAND);
579 EnableMenuItem(state->cvtmenu, IDC_EXPORT_SSHCOM,
580 MF_GRAYED|MF_BYCOMMAND);
581 break;
582 case 2:
583 hidemany(hwnd, nokey_ids, TRUE);
584 hidemany(hwnd, generating_ids, TRUE);
585 hidemany(hwnd, gotkey_ids, FALSE);
586 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
587 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
588 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1);
589 EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 1);
590 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 1);
591 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 1);
592 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 1);
593 EnableWindow(GetDlgItem(hwnd, IDC_BITS), 1);
594 EnableMenuItem(state->filemenu, IDC_LOAD, MF_ENABLED|MF_BYCOMMAND);
595 EnableMenuItem(state->filemenu, IDC_SAVE, MF_ENABLED|MF_BYCOMMAND);
596 EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_ENABLED|MF_BYCOMMAND);
597 EnableMenuItem(state->keymenu, IDC_GENERATE, MF_ENABLED|MF_BYCOMMAND);
598 EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_ENABLED|MF_BYCOMMAND);
599 EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA,MF_ENABLED|MF_BYCOMMAND);
600 EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA,MF_ENABLED|MF_BYCOMMAND);
601 EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_ENABLED|MF_BYCOMMAND);
602 /*
603 * Enable export menu items if and only if the key type
604 * supports this kind of export.
605 */
606 type = state->ssh2 ? SSH_KEYTYPE_SSH2 : SSH_KEYTYPE_SSH1;
607 #define do_export_menuitem(x,y) \
608 EnableMenuItem(state->cvtmenu, x, MF_BYCOMMAND | \
609 (import_target_type(y)==type?MF_ENABLED:MF_GRAYED))
610 do_export_menuitem(IDC_EXPORT_OPENSSH, SSH_KEYTYPE_OPENSSH);
611 do_export_menuitem(IDC_EXPORT_SSHCOM, SSH_KEYTYPE_SSHCOM);
612 #undef do_export_menuitem
613 break;
614 }
615 }
616
617 void load_key_file(HWND hwnd, struct MainDlgState *state,
618 Filename filename, int was_import_cmd)
619 {
620 char passphrase[PASSPHRASE_MAXLEN];
621 int needs_pass;
622 int type, realtype;
623 int ret;
624 const char *errmsg = NULL;
625 char *comment;
626 struct PassphraseProcStruct pps;
627 struct RSAKey newkey1;
628 struct ssh2_userkey *newkey2 = NULL;
629
630 type = realtype = key_type(&filename);
631 if (type != SSH_KEYTYPE_SSH1 &&
632 type != SSH_KEYTYPE_SSH2 &&
633 !import_possible(type)) {
634 char *msg = dupprintf("Couldn't load private key (%s)",
635 key_type_to_str(type));
636 message_box(msg, "PuTTYgen Error", MB_OK | MB_ICONERROR,
637 HELPCTXID(errors_cantloadkey));
638 sfree(msg);
639 return;
640 }
641
642 if (type != SSH_KEYTYPE_SSH1 &&
643 type != SSH_KEYTYPE_SSH2) {
644 realtype = type;
645 type = import_target_type(type);
646 }
647
648 comment = NULL;
649 if (realtype == SSH_KEYTYPE_SSH1)
650 needs_pass = rsakey_encrypted(&filename, &comment);
651 else if (realtype == SSH_KEYTYPE_SSH2)
652 needs_pass =
653 ssh2_userkey_encrypted(&filename, &comment);
654 else
655 needs_pass = import_encrypted(&filename, realtype,
656 &comment);
657 pps.passphrase = passphrase;
658 pps.comment = comment;
659 do {
660 if (needs_pass) {
661 int dlgret;
662 dlgret = DialogBoxParam(hinst,
663 MAKEINTRESOURCE(210),
664 NULL, PassphraseProc,
665 (LPARAM) &pps);
666 if (!dlgret) {
667 ret = -2;
668 break;
669 }
670 } else
671 *passphrase = '\0';
672 if (type == SSH_KEYTYPE_SSH1) {
673 if (realtype == type)
674 ret = loadrsakey(&filename, &newkey1,
675 passphrase, &errmsg);
676 else
677 ret = import_ssh1(&filename, realtype,
678 &newkey1, passphrase, &errmsg);
679 } else {
680 if (realtype == type)
681 newkey2 = ssh2_load_userkey(&filename,
682 passphrase, &errmsg);
683 else
684 newkey2 = import_ssh2(&filename, realtype,
685 passphrase, &errmsg);
686 if (newkey2 == SSH2_WRONG_PASSPHRASE)
687 ret = -1;
688 else if (!newkey2)
689 ret = 0;
690 else
691 ret = 1;
692 }
693 } while (ret == -1);
694 if (comment)
695 sfree(comment);
696 if (ret == 0) {
697 char *msg = dupprintf("Couldn't load private key (%s)", errmsg);
698 message_box(msg, "PuTTYgen Error", MB_OK | MB_ICONERROR,
699 HELPCTXID(errors_cantloadkey));
700 sfree(msg);
701 } else if (ret == 1) {
702 /*
703 * Now update the key controls with all the
704 * key data.
705 */
706 {
707 SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT,
708 passphrase);
709 SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT,
710 passphrase);
711 if (type == SSH_KEYTYPE_SSH1) {
712 char buf[128];
713 char *savecomment;
714
715 state->ssh2 = FALSE;
716 state->commentptr = &state->key.comment;
717 state->key = newkey1;
718
719 /*
720 * Set the key fingerprint.
721 */
722 savecomment = state->key.comment;
723 state->key.comment = NULL;
724 rsa_fingerprint(buf, sizeof(buf),
725 &state->key);
726 state->key.comment = savecomment;
727
728 SetDlgItemText(hwnd, IDC_FINGERPRINT, buf);
729 /*
730 * Construct a decimal representation
731 * of the key, for pasting into
732 * .ssh/authorized_keys on a Unix box.
733 */
734 setupbigedit1(hwnd, IDC_KEYDISPLAY,
735 IDC_PKSTATIC, &state->key);
736 } else {
737 char *fp;
738 char *savecomment;
739
740 state->ssh2 = TRUE;
741 state->commentptr =
742 &state->ssh2key.comment;
743 state->ssh2key = *newkey2; /* structure copy */
744 sfree(newkey2);
745
746 savecomment = state->ssh2key.comment;
747 state->ssh2key.comment = NULL;
748 fp =
749 state->ssh2key.alg->
750 fingerprint(state->ssh2key.data);
751 state->ssh2key.comment = savecomment;
752
753 SetDlgItemText(hwnd, IDC_FINGERPRINT, fp);
754 sfree(fp);
755
756 setupbigedit2(hwnd, IDC_KEYDISPLAY,
757 IDC_PKSTATIC, &state->ssh2key);
758 }
759 SetDlgItemText(hwnd, IDC_COMMENTEDIT,
760 *state->commentptr);
761 }
762 /*
763 * Finally, hide the progress bar and show
764 * the key data.
765 */
766 ui_set_state(hwnd, state, 2);
767 state->key_exists = TRUE;
768
769 /*
770 * If the user has imported a foreign key
771 * using the Load command, let them know.
772 * If they've used the Import command, be
773 * silent.
774 */
775 if (realtype != type && !was_import_cmd) {
776 char msg[512];
777 sprintf(msg, "Successfully imported foreign key\n"
778 "(%s).\n"
779 "To use this key with PuTTY, you need to\n"
780 "use the \"Save private key\" command to\n"
781 "save it in PuTTY's own format.",
782 key_type_to_str(realtype));
783 MessageBox(NULL, msg, "PuTTYgen Notice",
784 MB_OK | MB_ICONINFORMATION);
785 }
786 }
787 }
788
789 /*
790 * Dialog-box function for the main PuTTYgen dialog box.
791 */
792 static int CALLBACK MainDlgProc(HWND hwnd, UINT msg,
793 WPARAM wParam, LPARAM lParam)
794 {
795 static const char generating_msg[] =
796 "Please wait while a key is generated...";
797 static const char entropy_msg[] =
798 "Please generate some randomness by moving the mouse over the blank area.";
799 struct MainDlgState *state;
800
801 switch (msg) {
802 case WM_INITDIALOG:
803 if (help_path)
804 SetWindowLong(hwnd, GWL_EXSTYLE,
805 GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_CONTEXTHELP);
806 else {
807 /*
808 * If we add a Help button, this is where we destroy it
809 * if the help file isn't present.
810 */
811 }
812 requested_help = FALSE;
813 SendMessage(hwnd, WM_SETICON, (WPARAM) ICON_BIG,
814 (LPARAM) LoadIcon(hinst, MAKEINTRESOURCE(200)));
815
816 state = snew(struct MainDlgState);
817 state->generation_thread_exists = FALSE;
818 state->collecting_entropy = FALSE;
819 state->entropy = NULL;
820 state->key_exists = FALSE;
821 SetWindowLong(hwnd, GWL_USERDATA, (LONG) state);
822 {
823 HMENU menu, menu1;
824
825 menu = CreateMenu();
826
827 menu1 = CreateMenu();
828 AppendMenu(menu1, MF_ENABLED, IDC_LOAD, "&Load private key");
829 AppendMenu(menu1, MF_ENABLED, IDC_SAVEPUB, "Save p&ublic key");
830 AppendMenu(menu1, MF_ENABLED, IDC_SAVE, "&Save private key");
831 AppendMenu(menu1, MF_SEPARATOR, 0, 0);
832 AppendMenu(menu1, MF_ENABLED, IDC_QUIT, "E&xit");
833 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&File");
834 state->filemenu = menu1;
835
836 menu1 = CreateMenu();
837 AppendMenu(menu1, MF_ENABLED, IDC_GENERATE, "&Generate key pair");
838 AppendMenu(menu1, MF_SEPARATOR, 0, 0);
839 AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH1, "SSH&1 key (RSA)");
840 AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH2RSA, "SSH2 &RSA key");
841 AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH2DSA, "SSH2 &DSA key");
842 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&Key");
843 state->keymenu = menu1;
844
845 menu1 = CreateMenu();
846 AppendMenu(menu1, MF_ENABLED, IDC_IMPORT, "&Import key");
847 AppendMenu(menu1, MF_SEPARATOR, 0, 0);
848 AppendMenu(menu1, MF_ENABLED, IDC_EXPORT_OPENSSH,
849 "Export &OpenSSH key");
850 AppendMenu(menu1, MF_ENABLED, IDC_EXPORT_SSHCOM,
851 "Export &ssh.com key");
852 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1,
853 "Con&versions");
854 state->cvtmenu = menu1;
855
856 menu1 = CreateMenu();
857 AppendMenu(menu1, MF_ENABLED, IDC_ABOUT, "&About");
858 if (help_path)
859 AppendMenu(menu1, MF_ENABLED, IDC_GIVEHELP, "&Help");
860 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&Help");
861
862 SetMenu(hwnd, menu);
863 }
864
865 /*
866 * Centre the window.
867 */
868 { /* centre the window */
869 RECT rs, rd;
870 HWND hw;
871
872 hw = GetDesktopWindow();
873 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
874 MoveWindow(hwnd,
875 (rs.right + rs.left + rd.left - rd.right) / 2,
876 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
877 rd.right - rd.left, rd.bottom - rd.top, TRUE);
878 }
879
880 {
881 struct ctlpos cp, cp2;
882
883 /* Accelerators used: acglops1rbd */
884
885 ctlposinit(&cp, hwnd, 4, 4, 4);
886 beginbox(&cp, "Key", IDC_BOX_KEY);
887 cp2 = cp;
888 statictext(&cp2, "No key.", 1, IDC_NOKEY);
889 cp2 = cp;
890 statictext(&cp2, "", 1, IDC_GENERATING);
891 progressbar(&cp2, IDC_PROGRESS);
892 bigeditctrl(&cp,
893 "&Public key for pasting into authorized_keys file:",
894 IDC_PKSTATIC, IDC_KEYDISPLAY, 5);
895 SendDlgItemMessage(hwnd, IDC_KEYDISPLAY, EM_SETREADONLY, 1, 0);
896 staticedit(&cp, "Key f&ingerprint:", IDC_FPSTATIC,
897 IDC_FINGERPRINT, 75);
898 SendDlgItemMessage(hwnd, IDC_FINGERPRINT, EM_SETREADONLY, 1,
899 0);
900 staticedit(&cp, "Key &comment:", IDC_COMMENTSTATIC,
901 IDC_COMMENTEDIT, 75);
902 staticpassedit(&cp, "Key p&assphrase:", IDC_PASSPHRASE1STATIC,
903 IDC_PASSPHRASE1EDIT, 75);
904 staticpassedit(&cp, "C&onfirm passphrase:",
905 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 75);
906 endbox(&cp);
907 beginbox(&cp, "Actions", IDC_BOX_ACTIONS);
908 staticbtn(&cp, "Generate a public/private key pair",
909 IDC_GENSTATIC, "&Generate", IDC_GENERATE);
910 staticbtn(&cp, "Load an existing private key file",
911 IDC_LOADSTATIC, "&Load", IDC_LOAD);
912 static2btn(&cp, "Save the generated key", IDC_SAVESTATIC,
913 "Save p&ublic key", IDC_SAVEPUB,
914 "&Save private key", IDC_SAVE);
915 endbox(&cp);
916 beginbox(&cp, "Parameters", IDC_BOX_PARAMS);
917 radioline(&cp, "Type of key to generate:", IDC_TYPESTATIC, 3,
918 "SSH&1 (RSA)", IDC_KEYSSH1,
919 "SSH2 &RSA", IDC_KEYSSH2RSA,
920 "SSH2 &DSA", IDC_KEYSSH2DSA, NULL);
921 staticedit(&cp, "Number of &bits in a generated key:",
922 IDC_BITSSTATIC, IDC_BITS, 20);
923 endbox(&cp);
924 }
925 CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2DSA, IDC_KEYSSH2RSA);
926 CheckMenuRadioItem(state->keymenu, IDC_KEYSSH1, IDC_KEYSSH2DSA,
927 IDC_KEYSSH2RSA, MF_BYCOMMAND);
928 SetDlgItemInt(hwnd, IDC_BITS, DEFAULT_KEYSIZE, FALSE);
929
930 /*
931 * Initially, hide the progress bar and the key display,
932 * and show the no-key display. Also disable the Save
933 * buttons, because with no key we obviously can't save
934 * anything.
935 */
936 ui_set_state(hwnd, state, 0);
937
938 /*
939 * Load a key file if one was provided on the command line.
940 */
941 if (cmdline_keyfile)
942 load_key_file(hwnd, state, filename_from_str(cmdline_keyfile), 0);
943
944 return 1;
945 case WM_MOUSEMOVE:
946 state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA);
947 if (state->collecting_entropy &&
948 state->entropy && state->entropy_got < state->entropy_required) {
949 state->entropy[state->entropy_got++] = lParam;
950 state->entropy[state->entropy_got++] = GetMessageTime();
951 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS,
952 state->entropy_got, 0);
953 if (state->entropy_got >= state->entropy_required) {
954 struct rsa_key_thread_params *params;
955 DWORD threadid;
956
957 /*
958 * Seed the entropy pool
959 */
960 random_add_heavynoise(state->entropy, state->entropy_size);
961 memset(state->entropy, 0, state->entropy_size);
962 sfree(state->entropy);
963 state->collecting_entropy = FALSE;
964
965 SetDlgItemText(hwnd, IDC_GENERATING, generating_msg);
966 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
967 MAKELPARAM(0, PROGRESSRANGE));
968 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0);
969
970 params = snew(struct rsa_key_thread_params);
971 params->progressbar = GetDlgItem(hwnd, IDC_PROGRESS);
972 params->dialog = hwnd;
973 params->keysize = state->keysize;
974 params->is_dsa = state->is_dsa;
975 params->key = &state->key;
976 params->dsskey = &state->dsskey;
977
978 if (!CreateThread(NULL, 0, generate_rsa_key_thread,
979 params, 0, &threadid)) {
980 MessageBox(hwnd, "Out of thread resources",
981 "Key generation error",
982 MB_OK | MB_ICONERROR);
983 sfree(params);
984 } else {
985 state->generation_thread_exists = TRUE;
986 }
987 }
988 }
989 break;
990 case WM_COMMAND:
991 switch (LOWORD(wParam)) {
992 case IDC_KEYSSH1:
993 case IDC_KEYSSH2RSA:
994 case IDC_KEYSSH2DSA:
995 {
996 state = (struct MainDlgState *)
997 GetWindowLong(hwnd, GWL_USERDATA);
998 if (!IsDlgButtonChecked(hwnd, LOWORD(wParam)))
999 CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2DSA,
1000 LOWORD(wParam));
1001 CheckMenuRadioItem(state->keymenu, IDC_KEYSSH1, IDC_KEYSSH2DSA,
1002 LOWORD(wParam), MF_BYCOMMAND);
1003 }
1004 break;
1005 case IDC_QUIT:
1006 PostMessage(hwnd, WM_CLOSE, 0, 0);
1007 break;
1008 case IDC_COMMENTEDIT:
1009 if (HIWORD(wParam) == EN_CHANGE) {
1010 state = (struct MainDlgState *)
1011 GetWindowLong(hwnd, GWL_USERDATA);
1012 if (state->key_exists) {
1013 HWND editctl = GetDlgItem(hwnd, IDC_COMMENTEDIT);
1014 int len = GetWindowTextLength(editctl);
1015 if (*state->commentptr)
1016 sfree(*state->commentptr);
1017 *state->commentptr = snewn(len + 1, char);
1018 GetWindowText(editctl, *state->commentptr, len + 1);
1019 if (state->ssh2) {
1020 setupbigedit2(hwnd, IDC_KEYDISPLAY, IDC_PKSTATIC,
1021 &state->ssh2key);
1022 } else {
1023 setupbigedit1(hwnd, IDC_KEYDISPLAY, IDC_PKSTATIC,
1024 &state->key);
1025 }
1026 }
1027 }
1028 break;
1029 case IDC_ABOUT:
1030 EnableWindow(hwnd, 0);
1031 DialogBox(hinst, MAKEINTRESOURCE(213), hwnd, AboutProc);
1032 EnableWindow(hwnd, 1);
1033 SetActiveWindow(hwnd);
1034 return 0;
1035 case IDC_GIVEHELP:
1036 if (HIWORD(wParam) == BN_CLICKED ||
1037 HIWORD(wParam) == BN_DOUBLECLICKED) {
1038 if (help_path) {
1039 WinHelp(hwnd, help_path, HELP_COMMAND,
1040 (DWORD)"JI(`',`puttygen.general')");
1041 requested_help = TRUE;
1042 }
1043 }
1044 return 0;
1045 case IDC_GENERATE:
1046 if (HIWORD(wParam) != BN_CLICKED &&
1047 HIWORD(wParam) != BN_DOUBLECLICKED)
1048 break;
1049 state =
1050 (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA);
1051 if (!state->generation_thread_exists) {
1052 BOOL ok;
1053 state->keysize = GetDlgItemInt(hwnd, IDC_BITS, &ok, FALSE);
1054 if (!ok)
1055 state->keysize = DEFAULT_KEYSIZE;
1056 /* If we ever introduce a new key type, check it here! */
1057 state->ssh2 = !IsDlgButtonChecked(hwnd, IDC_KEYSSH1);
1058 state->is_dsa = IsDlgButtonChecked(hwnd, IDC_KEYSSH2DSA);
1059 if (state->keysize < 256) {
1060 int ret = MessageBox(hwnd,
1061 "PuTTYgen will not generate a key"
1062 " smaller than 256 bits.\n"
1063 "Key length reset to 256. Continue?",
1064 "PuTTYgen Warning",
1065 MB_ICONWARNING | MB_OKCANCEL);
1066 if (ret != IDOK)
1067 break;
1068 state->keysize = 256;
1069 SetDlgItemInt(hwnd, IDC_BITS, 256, FALSE);
1070 }
1071 ui_set_state(hwnd, state, 1);
1072 SetDlgItemText(hwnd, IDC_GENERATING, entropy_msg);
1073 state->key_exists = FALSE;
1074 state->collecting_entropy = TRUE;
1075
1076 /*
1077 * My brief statistical tests on mouse movements
1078 * suggest that there are about 2.5 bits of
1079 * randomness in the x position, 2.5 in the y
1080 * position, and 1.7 in the message time, making
1081 * 5.7 bits of unpredictability per mouse movement.
1082 * However, other people have told me it's far less
1083 * than that, so I'm going to be stupidly cautious
1084 * and knock that down to a nice round 2. With this
1085 * method, we require two words per mouse movement,
1086 * so with 2 bits per mouse movement we expect 2
1087 * bits every 2 words.
1088 */
1089 state->entropy_required = (state->keysize / 2) * 2;
1090 state->entropy_got = 0;
1091 state->entropy_size = (state->entropy_required *
1092 sizeof(unsigned));
1093 state->entropy = snewn(state->entropy_required, unsigned);
1094
1095 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
1096 MAKELPARAM(0, state->entropy_required));
1097 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0);
1098 }
1099 break;
1100 case IDC_SAVE:
1101 case IDC_EXPORT_OPENSSH:
1102 case IDC_EXPORT_SSHCOM:
1103 if (HIWORD(wParam) != BN_CLICKED)
1104 break;
1105 state =
1106 (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA);
1107 if (state->key_exists) {
1108 char filename[FILENAME_MAX];
1109 char passphrase[PASSPHRASE_MAXLEN];
1110 char passphrase2[PASSPHRASE_MAXLEN];
1111 int type, realtype;
1112
1113 if (state->ssh2)
1114 realtype = SSH_KEYTYPE_SSH2;
1115 else
1116 realtype = SSH_KEYTYPE_SSH1;
1117
1118 if (LOWORD(wParam) == IDC_EXPORT_OPENSSH)
1119 type = SSH_KEYTYPE_OPENSSH;
1120 else if (LOWORD(wParam) == IDC_EXPORT_SSHCOM)
1121 type = SSH_KEYTYPE_SSHCOM;
1122 else
1123 type = realtype;
1124
1125 if (type != realtype &&
1126 import_target_type(type) != realtype) {
1127 char msg[256];
1128 sprintf(msg, "Cannot export an SSH%d key in an SSH%d"
1129 " format", (state->ssh2 ? 2 : 1),
1130 (state->ssh2 ? 1 : 2));
1131 MessageBox(hwnd, msg,
1132 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1133 break;
1134 }
1135
1136 GetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT,
1137 passphrase, sizeof(passphrase));
1138 GetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT,
1139 passphrase2, sizeof(passphrase2));
1140 if (strcmp(passphrase, passphrase2)) {
1141 MessageBox(hwnd,
1142 "The two passphrases given do not match.",
1143 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1144 break;
1145 }
1146 if (!*passphrase) {
1147 int ret;
1148 ret = MessageBox(hwnd,
1149 "Are you sure you want to save this key\n"
1150 "without a passphrase to protect it?",
1151 "PuTTYgen Warning",
1152 MB_YESNO | MB_ICONWARNING);
1153 if (ret != IDYES)
1154 break;
1155 }
1156 if (prompt_keyfile(hwnd, "Save private key as:",
1157 filename, 1, (type == realtype))) {
1158 int ret;
1159 FILE *fp = fopen(filename, "r");
1160 if (fp) {
1161 char *buffer;
1162 fclose(fp);
1163 buffer = dupprintf("Overwrite existing file\n%s?",
1164 filename);
1165 ret = MessageBox(hwnd, buffer, "PuTTYgen Warning",
1166 MB_YESNO | MB_ICONWARNING);
1167 sfree(buffer);
1168 if (ret != IDYES)
1169 break;
1170 }
1171
1172 if (state->ssh2) {
1173 Filename fn = filename_from_str(filename);
1174 if (type != realtype)
1175 ret = export_ssh2(&fn, type, &state->ssh2key,
1176 *passphrase ? passphrase : NULL);
1177 else
1178 ret = ssh2_save_userkey(&fn, &state->ssh2key,
1179 *passphrase ? passphrase :
1180 NULL);
1181 } else {
1182 Filename fn = filename_from_str(filename);
1183 if (type != realtype)
1184 ret = export_ssh1(&fn, type, &state->key,
1185 *passphrase ? passphrase : NULL);
1186 else
1187 ret = saversakey(&fn, &state->key,
1188 *passphrase ? passphrase : NULL);
1189 }
1190 if (ret <= 0) {
1191 MessageBox(hwnd, "Unable to save key file",
1192 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1193 }
1194 }
1195 }
1196 break;
1197 case IDC_SAVEPUB:
1198 if (HIWORD(wParam) != BN_CLICKED)
1199 break;
1200 state =
1201 (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA);
1202 if (state->key_exists) {
1203 char filename[FILENAME_MAX];
1204 if (prompt_keyfile(hwnd, "Save public key as:",
1205 filename, 1, 0)) {
1206 int ret;
1207 FILE *fp = fopen(filename, "r");
1208 if (fp) {
1209 char *buffer;
1210 fclose(fp);
1211 buffer = dupprintf("Overwrite existing file\n%s?",
1212 filename);
1213 ret = MessageBox(hwnd, buffer, "PuTTYgen Warning",
1214 MB_YESNO | MB_ICONWARNING);
1215 sfree(buffer);
1216 if (ret != IDYES)
1217 break;
1218 }
1219 if (state->ssh2) {
1220 ret = save_ssh2_pubkey(filename, &state->ssh2key);
1221 } else {
1222 ret = save_ssh1_pubkey(filename, &state->key);
1223 }
1224 if (ret <= 0) {
1225 MessageBox(hwnd, "Unable to save key file",
1226 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1227 }
1228 }
1229 }
1230 break;
1231 case IDC_LOAD:
1232 case IDC_IMPORT:
1233 if (HIWORD(wParam) != BN_CLICKED)
1234 break;
1235 state =
1236 (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA);
1237 if (!state->generation_thread_exists) {
1238 char filename[FILENAME_MAX];
1239 if (prompt_keyfile(hwnd, "Load private key:",
1240 filename, 0, LOWORD(wParam)==IDC_LOAD))
1241 load_key_file(hwnd, state, filename_from_str(filename),
1242 LOWORD(wParam) != IDC_LOAD);
1243 }
1244 break;
1245 }
1246 return 0;
1247 case WM_DONEKEY:
1248 state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA);
1249 state->generation_thread_exists = FALSE;
1250 state->key_exists = TRUE;
1251 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
1252 MAKELPARAM(0, PROGRESSRANGE));
1253 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, PROGRESSRANGE, 0);
1254 if (state->ssh2) {
1255 if (state->is_dsa) {
1256 state->ssh2key.data = &state->dsskey;
1257 state->ssh2key.alg = &ssh_dss;
1258 } else {
1259 state->ssh2key.data = &state->key;
1260 state->ssh2key.alg = &ssh_rsa;
1261 }
1262 state->commentptr = &state->ssh2key.comment;
1263 } else {
1264 state->commentptr = &state->key.comment;
1265 }
1266 /*
1267 * Invent a comment for the key. We'll do this by including
1268 * the date in it. This will be so horrifyingly ugly that
1269 * the user will immediately want to change it, which is
1270 * what we want :-)
1271 */
1272 *state->commentptr = snewn(30, char);
1273 {
1274 struct tm tm;
1275 tm = ltime();
1276 if (state->is_dsa)
1277 strftime(*state->commentptr, 30, "dsa-key-%Y%m%d", &tm);
1278 else
1279 strftime(*state->commentptr, 30, "rsa-key-%Y%m%d", &tm);
1280 }
1281
1282 /*
1283 * Now update the key controls with all the key data.
1284 */
1285 {
1286 char *savecomment;
1287 /*
1288 * Blank passphrase, initially. This isn't dangerous,
1289 * because we will warn (Are You Sure?) before allowing
1290 * the user to save an unprotected private key.
1291 */
1292 SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, "");
1293 SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, "");
1294 /*
1295 * Set the comment.
1296 */
1297 SetDlgItemText(hwnd, IDC_COMMENTEDIT, *state->commentptr);
1298 /*
1299 * Set the key fingerprint.
1300 */
1301 savecomment = *state->commentptr;
1302 *state->commentptr = NULL;
1303 if (state->ssh2) {
1304 char *fp;
1305 fp = state->ssh2key.alg->fingerprint(state->ssh2key.data);
1306 SetDlgItemText(hwnd, IDC_FINGERPRINT, fp);
1307 sfree(fp);
1308 } else {
1309 char buf[128];
1310 rsa_fingerprint(buf, sizeof(buf), &state->key);
1311 SetDlgItemText(hwnd, IDC_FINGERPRINT, buf);
1312 }
1313 *state->commentptr = savecomment;
1314 /*
1315 * Construct a decimal representation of the key, for
1316 * pasting into .ssh/authorized_keys or
1317 * .ssh/authorized_keys2 on a Unix box.
1318 */
1319 if (state->ssh2) {
1320 setupbigedit2(hwnd, IDC_KEYDISPLAY,
1321 IDC_PKSTATIC, &state->ssh2key);
1322 } else {
1323 setupbigedit1(hwnd, IDC_KEYDISPLAY,
1324 IDC_PKSTATIC, &state->key);
1325 }
1326 }
1327 /*
1328 * Finally, hide the progress bar and show the key data.
1329 */
1330 ui_set_state(hwnd, state, 2);
1331 break;
1332 case WM_HELP:
1333 if (help_path) {
1334 int id = ((LPHELPINFO)lParam)->iCtrlId;
1335 char *topic = NULL;
1336 switch (id) {
1337 case IDC_GENERATING:
1338 case IDC_PROGRESS:
1339 case IDC_GENSTATIC:
1340 case IDC_GENERATE:
1341 topic = "puttygen.generate"; break;
1342 case IDC_PKSTATIC:
1343 case IDC_KEYDISPLAY:
1344 topic = "puttygen.pastekey"; break;
1345 case IDC_FPSTATIC:
1346 case IDC_FINGERPRINT:
1347 topic = "puttygen.fingerprint"; break;
1348 case IDC_COMMENTSTATIC:
1349 case IDC_COMMENTEDIT:
1350 topic = "puttygen.comment"; break;
1351 case IDC_PASSPHRASE1STATIC:
1352 case IDC_PASSPHRASE1EDIT:
1353 case IDC_PASSPHRASE2STATIC:
1354 case IDC_PASSPHRASE2EDIT:
1355 topic = "puttygen.passphrase"; break;
1356 case IDC_LOADSTATIC:
1357 case IDC_LOAD:
1358 topic = "puttygen.load"; break;
1359 case IDC_SAVESTATIC:
1360 case IDC_SAVE:
1361 topic = "puttygen.savepriv"; break;
1362 case IDC_SAVEPUB:
1363 topic = "puttygen.savepub"; break;
1364 case IDC_TYPESTATIC:
1365 case IDC_KEYSSH1:
1366 case IDC_KEYSSH2RSA:
1367 case IDC_KEYSSH2DSA:
1368 topic = "puttygen.keytype"; break;
1369 case IDC_BITSSTATIC:
1370 case IDC_BITS:
1371 topic = "puttygen.bits"; break;
1372 case IDC_IMPORT:
1373 case IDC_EXPORT_OPENSSH:
1374 case IDC_EXPORT_SSHCOM:
1375 topic = "puttygen.conversions"; break;
1376 }
1377 if (topic) {
1378 char *cmd = dupprintf("JI(`',`%s')", topic);
1379 WinHelp(hwnd, help_path, HELP_COMMAND, (DWORD)cmd);
1380 sfree(cmd);
1381 requested_help = TRUE;
1382 } else {
1383 MessageBeep(0);
1384 }
1385 }
1386 break;
1387 case WM_CLOSE:
1388 state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA);
1389 sfree(state);
1390 if (requested_help) {
1391 WinHelp(hwnd, help_path, HELP_QUIT, 0);
1392 requested_help = FALSE;
1393 }
1394 EndDialog(hwnd, 1);
1395 return 0;
1396 }
1397 return 0;
1398 }
1399
1400 void cleanup_exit(int code) { exit(code); }
1401
1402 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
1403 {
1404 int argc;
1405 char **argv;
1406
1407 split_into_argv(cmdline, &argc, &argv, NULL);
1408
1409 if (argc > 0) {
1410 /*
1411 * Assume the first argument to be a private key file, and
1412 * attempt to load it.
1413 */
1414 cmdline_keyfile = argv[0];
1415 }
1416
1417 InitCommonControls();
1418 hinst = inst;
1419 hwnd = NULL;
1420
1421 /*
1422 * See if we can find our Help file.
1423 */
1424 {
1425 char b[2048], *p, *q, *r;
1426 FILE *fp;
1427 GetModuleFileName(NULL, b, sizeof(b) - 1);
1428 r = b;
1429 p = strrchr(b, '\\');
1430 if (p && p >= r) r = p+1;
1431 q = strrchr(b, ':');
1432 if (q && q >= r) r = q+1;
1433 strcpy(r, PUTTY_HELP_FILE);
1434 if ( (fp = fopen(b, "r")) != NULL) {
1435 help_path = dupstr(b);
1436 fclose(fp);
1437 } else
1438 help_path = NULL;
1439 }
1440
1441 random_ref();
1442 return DialogBox(hinst, MAKEINTRESOURCE(201), NULL,
1443 MainDlgProc) != IDOK;
1444 }
Simon Tatham's PuTTY GUI SSH client; import of svn://svn.tartarus.org/sgt/putty