X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/8b8cf871e5471e658dda0836db678e0d68027e8c..2d466ffd08675d26db45e524c2fe6a8cf4628e2b:/puttygen.c diff --git a/puttygen.c b/puttygen.c index 564067ae..b9edf0d6 100644 --- a/puttygen.c +++ b/puttygen.c @@ -5,10 +5,8 @@ #include #include #include -#ifndef NO_SECURITY -#include -#endif #include +#include #define PUTTY_DO_GLOBALS @@ -18,16 +16,7 @@ #define WM_DONEKEY (WM_XUSER + 1) -#define KEYSIZE 1024 - -/* - * TODO: - * - have some means of verifying passphrase changes against typos - * - prompt before overwriting an existing file - * - check the return value from saversakey() - * - test the generated keys for actual working-RSA-key-hood - * - variable key size - */ +#define DEFAULT_KEYSIZE 1024 /* ---------------------------------------------------------------------- * Progress report code. This is really horrible :-) @@ -49,42 +38,52 @@ struct progress { HWND progbar; }; -static void progress_update(void *param, int phase, int iprogress) { - struct progress *p = (struct progress *)param; +static void progress_update(void *param, int phase, int iprogress) +{ + struct progress *p = (struct progress *) param; unsigned progress = iprogress; int position; switch (phase) { case -1: - p->phase1param = 0x10000 + progress; - p->phase1current = 0x10000; p->phase1n = 0; - return; + p->phase1param = 0x10000 + progress; + p->phase1current = 0x10000; + p->phase1n = 0; + return; case -2: - p->phase2param = 0x10000 + progress; - p->phase2current = 0x10000; p->phase2n = 0; - return; + p->phase2param = 0x10000 + progress; + p->phase2current = 0x10000; + p->phase2n = 0; + return; case -3: - p->phase3mult = PHASE3TOTAL / progress; - return; + p->phase3mult = PHASE3TOTAL / progress; + return; case 1: - while (p->phase1n < progress) { - p->phase1n++; - p->phase1current *= p->phase1param; - p->phase1current /= 0x10000; - } - position = PHASE1START + 0x10000 - p->phase1current; - break; + while (p->phase1n < progress) { + p->phase1n++; + p->phase1current *= p->phase1param; + p->phase1current /= 0x10000; + } + position = PHASE1START + 0x10000 - p->phase1current; + break; case 2: - while (p->phase2n < progress) { - p->phase2n++; - p->phase2current *= p->phase2param; - p->phase2current /= 0x10000; - } - position = PHASE2START + 0x10000 - p->phase2current; - break; + while (p->phase2n < progress) { + p->phase2n++; + p->phase2current *= p->phase2param; + p->phase2current /= 0x10000; + } + position = PHASE2START + 0x10000 - p->phase2current; + break; case 3: - position = PHASE3START + progress * p->phase3mult; - break; + position = PHASE3START + progress * p->phase3mult; + break; + default: + /* + * Shouldn't happen, but having a default clause placates + * gcc -Wall, which would otherwise complain that + * `position' might be used uninitialised. + */ + return; } SendMessage(p->progbar, PBM_SETPOS, position / DIVISOR, 0); @@ -103,42 +102,61 @@ struct PassphraseProcStruct { * Dialog-box function for the passphrase box. */ static int CALLBACK PassphraseProc(HWND hwnd, UINT msg, - WPARAM wParam, LPARAM lParam) { - static char *passphrase; + WPARAM wParam, LPARAM lParam) +{ + static char *passphrase = NULL; struct PassphraseProcStruct *p; switch (msg) { case WM_INITDIALOG: - SetForegroundWindow(hwnd); - SetWindowPos (hwnd, HWND_TOP, 0, 0, 0, 0, - SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); - p = (struct PassphraseProcStruct *)lParam; - passphrase = p->passphrase; - if (p->comment) - SetDlgItemText(hwnd, 101, p->comment); - *passphrase = 0; - return 0; + SetForegroundWindow(hwnd); + SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, + SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); + + /* + * Centre the window. + */ + { /* centre the window */ + RECT rs, rd; + HWND hw; + + hw = GetDesktopWindow(); + if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) + MoveWindow(hwnd, + (rs.right + rs.left + rd.left - rd.right) / 2, + (rs.bottom + rs.top + rd.top - rd.bottom) / 2, + rd.right - rd.left, rd.bottom - rd.top, TRUE); + } + + p = (struct PassphraseProcStruct *) lParam; + passphrase = p->passphrase; + if (p->comment) + SetDlgItemText(hwnd, 101, p->comment); + *passphrase = 0; + SetDlgItemText(hwnd, 102, passphrase); + return 0; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: if (*passphrase) - EndDialog (hwnd, 1); + EndDialog(hwnd, 1); else - MessageBeep (0); + MessageBeep(0); return 0; case IDCANCEL: - EndDialog (hwnd, 0); + EndDialog(hwnd, 0); + return 0; + case 102: /* edit box */ + if ((HIWORD(wParam) == EN_CHANGE) && passphrase) { + GetDlgItemText(hwnd, 102, passphrase, + PASSPHRASE_MAXLEN - 1); + passphrase[PASSPHRASE_MAXLEN - 1] = '\0'; + } return 0; - case 102: /* edit box */ - if (HIWORD(wParam) == EN_CHANGE) { - GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1); - passphrase[PASSPHRASE_MAXLEN-1] = '\0'; - } - return 0; } return 0; case WM_CLOSE: - EndDialog (hwnd, 0); + EndDialog(hwnd, 0); return 0; } return 0; @@ -149,7 +167,8 @@ static int CALLBACK PassphraseProc(HWND hwnd, UINT msg, * FILENAME_MAX. */ static int prompt_keyfile(HWND hwnd, char *dlgtitle, - char *filename, int save) { + char *filename, int save) +{ OPENFILENAME of; memset(&of, 0, sizeof(of)); #ifdef OPENFILENAME_SIZE_VERSION_400 @@ -161,37 +180,55 @@ static int prompt_keyfile(HWND hwnd, char *dlgtitle, of.lpstrFilter = "All Files\0*\0\0\0"; of.lpstrCustomFilter = NULL; of.nFilterIndex = 1; - of.lpstrFile = filename; *filename = '\0'; + of.lpstrFile = filename; + *filename = '\0'; of.nMaxFile = FILENAME_MAX; of.lpstrFileTitle = NULL; of.lpstrInitialDir = NULL; of.lpstrTitle = dlgtitle; of.Flags = 0; if (save) - return GetSaveFileName(&of); + return GetSaveFileName(&of); else - return GetOpenFileName(&of); + return GetOpenFileName(&of); } /* * This function is needed to link with the DES code. We need not * have it do anything at all. */ -void logevent(char *msg) { +void logevent(char *msg) +{ } /* * Dialog-box function for the Licence box. */ -static int CALLBACK LicenceProc (HWND hwnd, UINT msg, - WPARAM wParam, LPARAM lParam) { +static int CALLBACK LicenceProc(HWND hwnd, UINT msg, + WPARAM wParam, LPARAM lParam) +{ switch (msg) { case WM_INITDIALOG: + /* + * Centre the window. + */ + { /* centre the window */ + RECT rs, rd; + HWND hw; + + hw = GetDesktopWindow(); + if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) + MoveWindow(hwnd, + (rs.right + rs.left + rd.left - rd.right) / 2, + (rs.bottom + rs.top + rd.top - rd.bottom) / 2, + rd.right - rd.left, rd.bottom - rd.top, TRUE); + } + return 1; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: - EndDialog(hwnd, 1); + EndDialog(hwnd, 1); return 0; } return 0; @@ -205,27 +242,43 @@ static int CALLBACK LicenceProc (HWND hwnd, UINT msg, /* * Dialog-box function for the About box. */ -static int CALLBACK AboutProc (HWND hwnd, UINT msg, - WPARAM wParam, LPARAM lParam) { +static int CALLBACK AboutProc(HWND hwnd, UINT msg, + WPARAM wParam, LPARAM lParam) +{ switch (msg) { case WM_INITDIALOG: - SetDlgItemText (hwnd, 100, ver); + /* + * Centre the window. + */ + { /* centre the window */ + RECT rs, rd; + HWND hw; + + hw = GetDesktopWindow(); + if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) + MoveWindow(hwnd, + (rs.right + rs.left + rd.left - rd.right) / 2, + (rs.bottom + rs.top + rd.top - rd.bottom) / 2, + rd.right - rd.left, rd.bottom - rd.top, TRUE); + } + + SetDlgItemText(hwnd, 100, ver); return 1; case WM_COMMAND: switch (LOWORD(wParam)) { case IDOK: - EndDialog(hwnd, 1); + EndDialog(hwnd, 1); return 0; case 101: EnableWindow(hwnd, 0); - DialogBox (hinst, MAKEINTRESOURCE(214), NULL, LicenceProc); + DialogBox(hinst, MAKEINTRESOURCE(214), NULL, LicenceProc); EnableWindow(hwnd, 1); - SetActiveWindow(hwnd); + SetActiveWindow(hwnd); return 0; } return 0; case WM_CLOSE: - EndDialog(hwnd, 1); + EndDialog(hwnd, 1); return 0; } return 0; @@ -235,22 +288,23 @@ static int CALLBACK AboutProc (HWND hwnd, UINT msg, * Thread to generate a key. */ struct rsa_key_thread_params { - HWND progressbar; /* notify this with progress */ - HWND dialog; /* notify this on completion */ + HWND progressbar; /* notify this with progress */ + HWND dialog; /* notify this on completion */ + int keysize; /* bits in key */ struct RSAKey *key; - struct RSAAux *aux; }; -static DWORD WINAPI generate_rsa_key_thread(void *param) { +static DWORD WINAPI generate_rsa_key_thread(void *param) +{ struct rsa_key_thread_params *params = - (struct rsa_key_thread_params *)param; + (struct rsa_key_thread_params *) param; struct progress prog; prog.progbar = params->progressbar; - rsa_generate(params->key, params->aux, KEYSIZE, progress_update, &prog); + rsa_generate(params->key, params->keysize, progress_update, &prog); PostMessage(params->dialog, WM_DONEKEY, 0, 0); - free(params); + sfree(params); return 0; } @@ -259,406 +313,608 @@ struct MainDlgState { int generation_thread_exists; int key_exists; int entropy_got, entropy_required, entropy_size; + int keysize; + int ssh2; + char **commentptr; /* points to key.comment or ssh2key.comment */ + struct ssh2_userkey ssh2key; unsigned *entropy; struct RSAKey key; - struct RSAAux aux; }; -static void hidemany(HWND hwnd, const int *ids, int hideit) { +static void hidemany(HWND hwnd, const int *ids, int hideit) +{ while (*ids) { - ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW)); + ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW)); } } -static void setupbigedit(HWND hwnd, int id, struct RSAKey *key) { +static void setupbigedit1(HWND hwnd, int id, struct RSAKey *key) +{ char *buffer; char *dec1, *dec2; dec1 = bignum_decimal(key->exponent); dec2 = bignum_decimal(key->modulus); - buffer = malloc(strlen(dec1)+strlen(dec2)+ - strlen(key->comment)+30); + buffer = smalloc(strlen(dec1) + strlen(dec2) + + strlen(key->comment) + 30); sprintf(buffer, "%d %s %s %s", - ssh1_bignum_bitcount(key->modulus), - dec1, dec2, key->comment); + bignum_bitcount(key->modulus), dec1, dec2, key->comment); SetDlgItemText(hwnd, id, buffer); - free(dec1); - free(dec2); - free(buffer); + sfree(dec1); + sfree(dec2); + sfree(buffer); +} + +static void setupbigedit2(HWND hwnd, int id, struct ssh2_userkey *key) +{ + unsigned char *pub_blob; + char *buffer, *p; + int pub_len; + int i; + + pub_blob = key->alg->public_blob(key->data, &pub_len); + buffer = smalloc(strlen(key->alg->name) + 4 * ((pub_len + 2) / 3) + + strlen(key->comment) + 3); + strcpy(buffer, key->alg->name); + p = buffer + strlen(buffer); + *p++ = ' '; + i = 0; + while (i < pub_len) { + int n = (pub_len - i < 3 ? pub_len - i : 3); + base64_encode_atom(pub_blob + i, n, p); + i += n; + p += 4; + } + *p++ = ' '; + strcpy(p, key->comment); + SetDlgItemText(hwnd, id, buffer); + sfree(pub_blob); + sfree(buffer); } /* * Dialog-box function for the main PuTTYgen dialog box. */ -static int CALLBACK MainDlgProc (HWND hwnd, UINT msg, - WPARAM wParam, LPARAM lParam) { +static int CALLBACK MainDlgProc(HWND hwnd, UINT msg, + WPARAM wParam, LPARAM lParam) +{ enum { - controlidstart = 100, - IDC_TITLE, - IDC_BOX_KEY, IDC_BOXT_KEY, - IDC_NOKEY, - IDC_GENERATING, - IDC_PROGRESS, - IDC_PKSTATIC, IDC_KEYDISPLAY, - IDC_FPSTATIC, IDC_FINGERPRINT, - IDC_COMMENTSTATIC, IDC_COMMENTEDIT, - IDC_PASSPHRASESTATIC, IDC_PASSPHRASEEDIT, - IDC_BOX_ACTIONS, IDC_BOXT_ACTIONS, - IDC_GENSTATIC, IDC_GENERATE, - IDC_LOADSTATIC, IDC_LOAD, - IDC_SAVESTATIC, IDC_SAVE, - IDC_ABOUT, + controlidstart = 100, + IDC_TITLE, + IDC_BOX_KEY, + IDC_NOKEY, + IDC_GENERATING, + IDC_PROGRESS, + IDC_PKSTATIC, IDC_KEYDISPLAY, + IDC_FPSTATIC, IDC_FINGERPRINT, + IDC_COMMENTSTATIC, IDC_COMMENTEDIT, + IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT, + IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, + IDC_BOX_ACTIONS, + IDC_GENSTATIC, IDC_GENERATE, + IDC_LOADSTATIC, IDC_LOAD, + IDC_SAVESTATIC, IDC_SAVE, + IDC_BOX_PARAMS, + IDC_TYPESTATIC, IDC_KEYSSH1, IDC_KEYSSH2RSA, + IDC_BITSSTATIC, IDC_BITS, + IDC_ABOUT, }; static const int nokey_ids[] = { IDC_NOKEY, 0 }; - static const int generating_ids[] = { IDC_GENERATING, IDC_PROGRESS, 0 }; + static const int generating_ids[] = + { IDC_GENERATING, IDC_PROGRESS, 0 }; static const int gotkey_ids[] = { - IDC_PKSTATIC, IDC_KEYDISPLAY, - IDC_FPSTATIC, IDC_FINGERPRINT, - IDC_COMMENTSTATIC, IDC_COMMENTEDIT, - IDC_PASSPHRASESTATIC, IDC_PASSPHRASEEDIT, 0 }; + IDC_PKSTATIC, IDC_KEYDISPLAY, + IDC_FPSTATIC, IDC_FINGERPRINT, + IDC_COMMENTSTATIC, IDC_COMMENTEDIT, + IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT, + IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 0 + }; static const char generating_msg[] = - "Please wait while a key is generated..."; + "Please wait while a key is generated..."; static const char entropy_msg[] = - "Please move the mouse in this window to generate randomness"; + "Please generate some randomness by moving the mouse over the blank area."; struct MainDlgState *state; switch (msg) { case WM_INITDIALOG: - state = malloc(sizeof(*state)); - state->generation_thread_exists = FALSE; - state->key_exists = FALSE; - SetWindowLong(hwnd, GWL_USERDATA, (LONG)state); - { - struct ctlpos cp, cp2; - - ctlposinit(&cp, hwnd, 10, 10, 10); - bartitle(&cp, "Public and private key generation for PuTTY", - IDC_TITLE); - beginbox(&cp, "Key", - IDC_BOX_KEY, IDC_BOXT_KEY); - cp2 = cp; - statictext(&cp2, "No key.", IDC_NOKEY); - cp2 = cp; - statictext(&cp2, "", - IDC_GENERATING); - progressbar(&cp2, IDC_PROGRESS); - bigeditctrl(&cp, - "&Public key for pasting into authorized_keys file:", - IDC_PKSTATIC, IDC_KEYDISPLAY, 7); - SendDlgItemMessage(hwnd, IDC_KEYDISPLAY, EM_SETREADONLY, 1, 0); - staticedit(&cp, "Key fingerprint:", IDC_FPSTATIC, - IDC_FINGERPRINT, 70); - SendDlgItemMessage(hwnd, IDC_FINGERPRINT, EM_SETREADONLY, 1, 0); - staticedit(&cp, "Key &comment:", IDC_COMMENTSTATIC, - IDC_COMMENTEDIT, 70); - staticpassedit(&cp, "Key p&assphrase:", IDC_PASSPHRASESTATIC, - IDC_PASSPHRASEEDIT, 70); - endbox(&cp); - beginbox(&cp, "Actions", - IDC_BOX_ACTIONS, IDC_BOXT_ACTIONS); - staticbtn(&cp, "Generate a public/private key pair", - IDC_GENSTATIC, "&Generate", IDC_GENERATE); - staticbtn(&cp, "Load an existing private key file", - IDC_LOADSTATIC, "&Load", IDC_LOAD); - staticbtn(&cp, "Save the generated key to a new file", - IDC_SAVESTATIC, "&Save", IDC_SAVE); - endbox(&cp); - } - /* - * Initially, hide the progress bar and the key display, - * and show the no-key display. Also disable the Save - * button, because with no key we obviously can't save - * anything. - */ - hidemany(hwnd, nokey_ids, FALSE); - hidemany(hwnd, generating_ids, TRUE); - hidemany(hwnd, gotkey_ids, TRUE); - EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); + /* + * Centre the window. + */ + { /* centre the window */ + RECT rs, rd; + HWND hw; + + hw = GetDesktopWindow(); + if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd)) + MoveWindow(hwnd, + (rs.right + rs.left + rd.left - rd.right) / 2, + (rs.bottom + rs.top + rd.top - rd.bottom) / 2, + rd.right - rd.left, rd.bottom - rd.top, TRUE); + } + + state = smalloc(sizeof(*state)); + state->generation_thread_exists = FALSE; + state->collecting_entropy = FALSE; + state->entropy = NULL; + state->key_exists = FALSE; + SetWindowLong(hwnd, GWL_USERDATA, (LONG) state); + { + struct ctlpos cp, cp2; + + /* Accelerators used: acglops */ + + ctlposinit(&cp, hwnd, 10, 10, 10); + bartitle(&cp, "Public and private key generation for PuTTY", + IDC_TITLE); + beginbox(&cp, "Key", IDC_BOX_KEY); + cp2 = cp; + statictext(&cp2, "No key.", IDC_NOKEY); + cp2 = cp; + statictext(&cp2, "", IDC_GENERATING); + progressbar(&cp2, IDC_PROGRESS); + bigeditctrl(&cp, + "&Public key for pasting into authorized_keys file:", + IDC_PKSTATIC, IDC_KEYDISPLAY, 7); + SendDlgItemMessage(hwnd, IDC_KEYDISPLAY, EM_SETREADONLY, 1, 0); + staticedit(&cp, "Key fingerprint:", IDC_FPSTATIC, + IDC_FINGERPRINT, 75); + SendDlgItemMessage(hwnd, IDC_FINGERPRINT, EM_SETREADONLY, 1, + 0); + staticedit(&cp, "Key &comment:", IDC_COMMENTSTATIC, + IDC_COMMENTEDIT, 75); + staticpassedit(&cp, "Key p&assphrase:", IDC_PASSPHRASE1STATIC, + IDC_PASSPHRASE1EDIT, 75); + staticpassedit(&cp, "C&onfirm passphrase:", + IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 75); + endbox(&cp); + beginbox(&cp, "Actions", IDC_BOX_ACTIONS); + staticbtn(&cp, "Generate a public/private key pair", + IDC_GENSTATIC, "&Generate", IDC_GENERATE); + staticbtn(&cp, "Load an existing private key file", + IDC_LOADSTATIC, "&Load", IDC_LOAD); + staticbtn(&cp, "Save the generated key to a new file", + IDC_SAVESTATIC, "&Save", IDC_SAVE); + endbox(&cp); + beginbox(&cp, "Parameters", IDC_BOX_PARAMS); + radioline(&cp, "Type of key to generate:", IDC_TYPESTATIC, 2, + "SSH&1 (RSA)", IDC_KEYSSH1, + "SSH2 &RSA", IDC_KEYSSH2RSA, NULL); + staticedit(&cp, "Number of &bits in a generated key:", + IDC_BITSSTATIC, IDC_BITS, 20); + endbox(&cp); + } + CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2RSA, IDC_KEYSSH1); + SetDlgItemInt(hwnd, IDC_BITS, DEFAULT_KEYSIZE, FALSE); + + /* + * Initially, hide the progress bar and the key display, + * and show the no-key display. Also disable the Save + * button, because with no key we obviously can't save + * anything. + */ + hidemany(hwnd, nokey_ids, FALSE); + hidemany(hwnd, generating_ids, TRUE); + hidemany(hwnd, gotkey_ids, TRUE); + EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); return 1; case WM_MOUSEMOVE: - state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); - if (state->collecting_entropy) { - state->entropy[state->entropy_got++] = lParam; - state->entropy[state->entropy_got++] = GetMessageTime(); - SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, - state->entropy_got, 0); - if (state->entropy_got >= state->entropy_required) { - struct rsa_key_thread_params *params; - DWORD threadid; - - /* - * Seed the entropy pool - */ - random_add_heavynoise(state->entropy, state->entropy_size); - memset(state->entropy, 0, state->entropy_size); - free(state->entropy); - - SetDlgItemText(hwnd, IDC_GENERATING, generating_msg); - SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, - MAKELPARAM(0, PROGRESSRANGE)); - SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); - - params = malloc(sizeof(*params)); - params->progressbar = GetDlgItem(hwnd, IDC_PROGRESS); - params->dialog = hwnd; - params->key = &state->key; - params->aux = &state->aux; - - if (!CreateThread(NULL, 0, generate_rsa_key_thread, - params, 0, &threadid)) { - MessageBox(hwnd, "Out of thread resources", - "Key generation error", - MB_OK | MB_ICONERROR); - free(params); - } else { - state->generation_thread_exists = TRUE; - state->collecting_entropy = FALSE; - } - } - } - break; + state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); + if (state->collecting_entropy && + state->entropy && state->entropy_got < state->entropy_required) { + state->entropy[state->entropy_got++] = lParam; + state->entropy[state->entropy_got++] = GetMessageTime(); + SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, + state->entropy_got, 0); + if (state->entropy_got >= state->entropy_required) { + struct rsa_key_thread_params *params; + DWORD threadid; + + /* + * Seed the entropy pool + */ + random_add_heavynoise(state->entropy, state->entropy_size); + memset(state->entropy, 0, state->entropy_size); + sfree(state->entropy); + state->collecting_entropy = FALSE; + + SetDlgItemText(hwnd, IDC_GENERATING, generating_msg); + SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, + MAKELPARAM(0, PROGRESSRANGE)); + SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); + + params = smalloc(sizeof(*params)); + params->progressbar = GetDlgItem(hwnd, IDC_PROGRESS); + params->dialog = hwnd; + params->keysize = state->keysize; + params->key = &state->key; + + if (!CreateThread(NULL, 0, generate_rsa_key_thread, + params, 0, &threadid)) { + MessageBox(hwnd, "Out of thread resources", + "Key generation error", + MB_OK | MB_ICONERROR); + sfree(params); + } else { + state->generation_thread_exists = TRUE; + } + } + } + break; case WM_COMMAND: switch (LOWORD(wParam)) { case IDC_COMMENTEDIT: if (HIWORD(wParam) == EN_CHANGE) { - state = (struct MainDlgState *) - GetWindowLong(hwnd, GWL_USERDATA); - if (state->key_exists) { - HWND editctl = GetDlgItem(hwnd, IDC_COMMENTEDIT); - int len = GetWindowTextLength(editctl); - if (state->key.comment) - free(state->key.comment); - state->key.comment = malloc(len+1); - GetWindowText(editctl, state->key.comment, len+1); - } - } + state = (struct MainDlgState *) + GetWindowLong(hwnd, GWL_USERDATA); + if (state->key_exists) { + HWND editctl = GetDlgItem(hwnd, IDC_COMMENTEDIT); + int len = GetWindowTextLength(editctl); + if (*state->commentptr) + sfree(*state->commentptr); + *state->commentptr = smalloc(len + 1); + GetWindowText(editctl, *state->commentptr, len + 1); + if (state->ssh2) { + setupbigedit2(hwnd, IDC_KEYDISPLAY, + &state->ssh2key); + } else { + setupbigedit1(hwnd, IDC_KEYDISPLAY, &state->key); + } + } + } break; case IDC_ABOUT: EnableWindow(hwnd, 0); - DialogBox (hinst, MAKEINTRESOURCE(213), NULL, AboutProc); + DialogBox(hinst, MAKEINTRESOURCE(213), NULL, AboutProc); EnableWindow(hwnd, 1); - SetActiveWindow(hwnd); + SetActiveWindow(hwnd); return 0; - case IDC_GENERATE: - state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); - if (!state->generation_thread_exists) { - hidemany(hwnd, nokey_ids, TRUE); - hidemany(hwnd, generating_ids, FALSE); - hidemany(hwnd, gotkey_ids, TRUE); - EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 0); - EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 0); - EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); - state->key_exists = FALSE; - SetDlgItemText(hwnd, IDC_GENERATING, entropy_msg); - state->collecting_entropy = TRUE; - - /* - * My brief statistical tests on mouse movements - * suggest that there are about 5 bits of - * randomness in the x position, 5 in the y - * position, and 1.7 in the message time, making - * 11.7 bits of unpredictability per mouse - * movement. However, other people have told me - * it's far less than that, so I'm going to be - * stupidly cautious and knock that down to a nice - * round 4. - */ - state->entropy_required = (KEYSIZE / 4) * 2; - state->entropy_got = 0; - state->entropy_size = (state->entropy_required * - sizeof(*state->entropy)); - state->entropy = malloc(state->entropy_size); - - SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, - MAKELPARAM(0, state->entropy_required)); - SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); - } - break; - case IDC_SAVE: - state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); - if (state->key_exists) { - char filename[FILENAME_MAX]; - char passphrase[PASSPHRASE_MAXLEN]; - GetDlgItemText(hwnd, IDC_PASSPHRASEEDIT, - passphrase, sizeof(passphrase)-1); - if (!*passphrase) { - int ret; - ret = MessageBox(hwnd, - "Are you sure you want to save this key\n" - "without a passphrase to protect it?", - "PuTTYgen Warning", - MB_YESNO | MB_ICONWARNING); - if (ret != IDYES) - break; - } - if (prompt_keyfile(hwnd, "Save private key as:", - filename, 1)) { - /* FIXME: prompt before overwriting */ - saversakey(filename, &state->key, &state->aux, - *passphrase ? passphrase : NULL); - /* FIXME: check return value */ - } - } - break; - case IDC_LOAD: - state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); - if (!state->generation_thread_exists) { - char filename[FILENAME_MAX]; - if (prompt_keyfile(hwnd, "Load private key:", - filename, 0)) { - char passphrase[PASSPHRASE_MAXLEN]; - int needs_pass; - int ret; - char *comment; - struct PassphraseProcStruct pps; - struct RSAKey newkey; - struct RSAAux newaux; - - needs_pass = rsakey_encrypted(filename, &comment); - pps.passphrase = passphrase; - pps.comment = comment; - do { - if (needs_pass) { - int dlgret; - dlgret = DialogBoxParam(hinst, - MAKEINTRESOURCE(210), - NULL, PassphraseProc, - (LPARAM)&pps); - if (!dlgret) { - ret = -2; - break; - } - } else - *passphrase = '\0'; - ret = loadrsakey(filename, &newkey, &newaux, - passphrase); - } while (ret == -1); - if (comment) free(comment); - if (ret == 0) { - MessageBox(NULL, "Couldn't load private key.", - "PuTTYgen Error", MB_OK | MB_ICONERROR); - } else if (ret == 1) { - state->key = newkey; - state->aux = newaux; - - EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); - EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); - EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); - /* - * Now update the key controls with all the - * key data. - */ - { - char buf[128]; - SetDlgItemText(hwnd, IDC_PASSPHRASEEDIT, - passphrase); - SetDlgItemText(hwnd, IDC_COMMENTEDIT, - state->key.comment); - /* - * Set the key fingerprint. - */ - { - char *savecomment = state->key.comment; - state->key.comment = NULL; - rsa_fingerprint(buf, sizeof(buf), &state->key); - state->key.comment = savecomment; - } - SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); - /* - * Construct a decimal representation - * of the key, for pasting into - * .ssh/authorized_keys on a Unix box. - */ - setupbigedit(hwnd, IDC_KEYDISPLAY, &state->key); - } - /* - * Finally, hide the progress bar and show - * the key data. - */ - hidemany(hwnd, nokey_ids, TRUE); - hidemany(hwnd, generating_ids, TRUE); - hidemany(hwnd, gotkey_ids, FALSE); - state->key_exists = TRUE; - } - } - } - break; + case IDC_GENERATE: + state = + (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); + if (!state->generation_thread_exists) { + BOOL ok; + state->keysize = GetDlgItemInt(hwnd, IDC_BITS, &ok, FALSE); + if (!ok) + state->keysize = DEFAULT_KEYSIZE; + /* If we ever introduce a new key type, check it here! */ + state->ssh2 = !IsDlgButtonChecked(hwnd, IDC_KEYSSH1); + if (state->keysize < 256) { + int ret = MessageBox(hwnd, + "PuTTYgen will not generate a key" + " smaller than 256 bits.\n" + "Key length reset to 256. Continue?", + "PuTTYgen Warning", + MB_ICONWARNING | MB_OKCANCEL); + if (ret != IDOK) + break; + state->keysize = 256; + SetDlgItemInt(hwnd, IDC_BITS, 256, FALSE); + } + hidemany(hwnd, nokey_ids, TRUE); + hidemany(hwnd, generating_ids, FALSE); + hidemany(hwnd, gotkey_ids, TRUE); + EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 0); + EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 0); + EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0); + state->key_exists = FALSE; + SetDlgItemText(hwnd, IDC_GENERATING, entropy_msg); + state->collecting_entropy = TRUE; + + /* + * My brief statistical tests on mouse movements + * suggest that there are about 2.5 bits of + * randomness in the x position, 2.5 in the y + * position, and 1.7 in the message time, making + * 5.7 bits of unpredictability per mouse movement. + * However, other people have told me it's far less + * than that, so I'm going to be stupidly cautious + * and knock that down to a nice round 2. With this + * method, we require two words per mouse movement, + * so with 2 bits per mouse movement we expect 2 + * bits every 2 words. + */ + state->entropy_required = (state->keysize / 2) * 2; + state->entropy_got = 0; + state->entropy_size = (state->entropy_required * + sizeof(*state->entropy)); + state->entropy = smalloc(state->entropy_size); + + SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, + MAKELPARAM(0, state->entropy_required)); + SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0); + } + break; + case IDC_SAVE: + state = + (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); + if (state->key_exists) { + char filename[FILENAME_MAX]; + char passphrase[PASSPHRASE_MAXLEN]; + char passphrase2[PASSPHRASE_MAXLEN]; + GetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, + passphrase, sizeof(passphrase)); + GetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, + passphrase2, sizeof(passphrase2)); + if (strcmp(passphrase, passphrase2)) { + MessageBox(hwnd, + "The two passphrases given do not match.", + "PuTTYgen Error", MB_OK | MB_ICONERROR); + break; + } + if (!*passphrase) { + int ret; + ret = MessageBox(hwnd, + "Are you sure you want to save this key\n" + "without a passphrase to protect it?", + "PuTTYgen Warning", + MB_YESNO | MB_ICONWARNING); + if (ret != IDYES) + break; + } + if (prompt_keyfile(hwnd, "Save private key as:", + filename, 1)) { + int ret; + FILE *fp = fopen(filename, "r"); + if (fp) { + char buffer[FILENAME_MAX + 80]; + fclose(fp); + sprintf(buffer, "Overwrite existing file\n%.*s?", + FILENAME_MAX, filename); + ret = MessageBox(hwnd, buffer, "PuTTYgen Warning", + MB_YESNO | MB_ICONWARNING); + if (ret != IDYES) + break; + } + if (state->ssh2) { + ret = ssh2_save_userkey(filename, &state->ssh2key, + *passphrase ? passphrase : + NULL); + } else { + ret = saversakey(filename, &state->key, + *passphrase ? passphrase : NULL); + } + if (ret <= 0) { + MessageBox(hwnd, "Unable to save key file", + "PuTTYgen Error", MB_OK | MB_ICONERROR); + } + } + } + break; + case IDC_LOAD: + state = + (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); + if (!state->generation_thread_exists) { + char filename[FILENAME_MAX]; + if (prompt_keyfile(hwnd, "Load private key:", filename, 0)) { + char passphrase[PASSPHRASE_MAXLEN]; + int needs_pass; + int ver; + int ret; + char *comment; + struct PassphraseProcStruct pps; + struct RSAKey newkey1; + struct ssh2_userkey *newkey2 = NULL; + + ver = keyfile_version(filename); + if (ver == 0) { + MessageBox(NULL, "Couldn't load private key.", + "PuTTYgen Error", MB_OK | MB_ICONERROR); + break; + } + + comment = NULL; + if (ver == 1) + needs_pass = rsakey_encrypted(filename, &comment); + else + needs_pass = + ssh2_userkey_encrypted(filename, &comment); + pps.passphrase = passphrase; + pps.comment = comment; + do { + if (needs_pass) { + int dlgret; + dlgret = DialogBoxParam(hinst, + MAKEINTRESOURCE(210), + NULL, PassphraseProc, + (LPARAM) & pps); + if (!dlgret) { + ret = -2; + break; + } + } else + *passphrase = '\0'; + if (ver == 1) + ret = + loadrsakey(filename, &newkey1, passphrase); + else { + newkey2 = + ssh2_load_userkey(filename, passphrase); + if (newkey2 == SSH2_WRONG_PASSPHRASE) + ret = -1; + else if (!newkey2) + ret = 0; + else + ret = 1; + } + } while (ret == -1); + if (comment) + sfree(comment); + if (ret == 0) { + MessageBox(NULL, "Couldn't load private key.", + "PuTTYgen Error", MB_OK | MB_ICONERROR); + } else if (ret == 1) { + EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); + EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); + EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); + /* + * Now update the key controls with all the + * key data. + */ + { + SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, + passphrase); + SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, + passphrase); + if (ver == 1) { + char buf[128]; + char *savecomment; + + state->ssh2 = FALSE; + state->commentptr = &state->key.comment; + state->key = newkey1; + + /* + * Set the key fingerprint. + */ + savecomment = state->key.comment; + state->key.comment = NULL; + rsa_fingerprint(buf, sizeof(buf), + &state->key); + state->key.comment = savecomment; + + SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); + /* + * Construct a decimal representation + * of the key, for pasting into + * .ssh/authorized_keys on a Unix box. + */ + setupbigedit1(hwnd, IDC_KEYDISPLAY, + &state->key); + } else { + char *fp; + char *savecomment; + + state->ssh2 = TRUE; + state->commentptr = + &state->ssh2key.comment; + state->ssh2key = *newkey2; /* structure copy */ + sfree(newkey2); + + savecomment = state->ssh2key.comment; + state->ssh2key.comment = NULL; + fp = + state->ssh2key.alg-> + fingerprint(state->ssh2key.data); + state->ssh2key.comment = savecomment; + + SetDlgItemText(hwnd, IDC_FINGERPRINT, fp); + sfree(fp); + + setupbigedit2(hwnd, IDC_KEYDISPLAY, + &state->ssh2key); + } + SetDlgItemText(hwnd, IDC_COMMENTEDIT, + *state->commentptr); + } + /* + * Finally, hide the progress bar and show + * the key data. + */ + hidemany(hwnd, nokey_ids, TRUE); + hidemany(hwnd, generating_ids, TRUE); + hidemany(hwnd, gotkey_ids, FALSE); + state->key_exists = TRUE; + } + } + } + break; } return 0; case WM_DONEKEY: - state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); - state->generation_thread_exists = FALSE; - state->key_exists = TRUE; - SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, PROGRESSRANGE, 0); - EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); - EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); - EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); - /* - * Invent a comment for the key. We'll do this by including - * the date in it. This will be so horrifyingly ugly that - * the user will immediately want to change it, which is - * what we want :-) - */ - state->key.comment = malloc(30); - { - time_t t; - struct tm *tm; - time(&t); - tm = localtime(&t); - strftime(state->key.comment, 30, "rsa-key-%Y%m%d", tm); - } - - /* - * Now update the key controls with all the key data. - */ - { - char buf[128]; - /* - * Blank passphrase, initially. This isn't dangerous, - * because we will warn (Are You Sure?) before allowing - * the user to save an unprotected private key. - */ - SetDlgItemText(hwnd, IDC_PASSPHRASEEDIT, ""); - /* - * Set the comment. - */ - SetDlgItemText(hwnd, IDC_COMMENTEDIT, state->key.comment); - /* - * Set the key fingerprint. - */ - { - char *savecomment = state->key.comment; - state->key.comment = NULL; - rsa_fingerprint(buf, sizeof(buf), &state->key); - state->key.comment = savecomment; - } - SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); - /* - * Construct a decimal representation of the key, for - * pasting into .ssh/authorized_keys on a Unix box. - */ - setupbigedit(hwnd, IDC_KEYDISPLAY, &state->key); - } - /* - * Finally, hide the progress bar and show the key data. - */ - hidemany(hwnd, nokey_ids, TRUE); - hidemany(hwnd, generating_ids, TRUE); - hidemany(hwnd, gotkey_ids, FALSE); - break; + state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); + state->generation_thread_exists = FALSE; + state->key_exists = TRUE; + SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, PROGRESSRANGE, + 0); + EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1); + EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1); + EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1); + if (state->ssh2) { + state->ssh2key.data = &state->key; + state->ssh2key.alg = &ssh_rsa; + state->commentptr = &state->ssh2key.comment; + } else { + state->commentptr = &state->key.comment; + } + /* + * Invent a comment for the key. We'll do this by including + * the date in it. This will be so horrifyingly ugly that + * the user will immediately want to change it, which is + * what we want :-) + */ + *state->commentptr = smalloc(30); + { + time_t t; + struct tm *tm; + time(&t); + tm = localtime(&t); + strftime(*state->commentptr, 30, "rsa-key-%Y%m%d", tm); + } + + /* + * Now update the key controls with all the key data. + */ + { + char *savecomment; + /* + * Blank passphrase, initially. This isn't dangerous, + * because we will warn (Are You Sure?) before allowing + * the user to save an unprotected private key. + */ + SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, ""); + SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, ""); + /* + * Set the comment. + */ + SetDlgItemText(hwnd, IDC_COMMENTEDIT, *state->commentptr); + /* + * Set the key fingerprint. + */ + savecomment = *state->commentptr; + *state->commentptr = NULL; + if (state->ssh2) { + char *fp; + fp = state->ssh2key.alg->fingerprint(state->ssh2key.data); + SetDlgItemText(hwnd, IDC_FINGERPRINT, fp); + sfree(fp); + } else { + char buf[128]; + rsa_fingerprint(buf, sizeof(buf), &state->key); + SetDlgItemText(hwnd, IDC_FINGERPRINT, buf); + } + *state->commentptr = savecomment; + /* + * Construct a decimal representation of the key, for + * pasting into .ssh/authorized_keys on a Unix box. + */ + if (state->ssh2) { + setupbigedit2(hwnd, IDC_KEYDISPLAY, &state->ssh2key); + } else { + setupbigedit1(hwnd, IDC_KEYDISPLAY, &state->key); + } + } + /* + * Finally, hide the progress bar and show the key data. + */ + hidemany(hwnd, nokey_ids, TRUE); + hidemany(hwnd, generating_ids, TRUE); + hidemany(hwnd, gotkey_ids, FALSE); + break; case WM_CLOSE: - state = (struct MainDlgState *)GetWindowLong(hwnd, GWL_USERDATA); - free(state); - EndDialog(hwnd, 1); + state = (struct MainDlgState *) GetWindowLong(hwnd, GWL_USERDATA); + sfree(state); + EndDialog(hwnd, 1); return 0; } return 0; } -int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) { +int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) +{ InitCommonControls(); hinst = inst; random_init(); - return DialogBox(hinst, MAKEINTRESOURCE(201), NULL, MainDlgProc) != IDOK; + return DialogBox(hinst, MAKEINTRESOURCE(201), NULL, + MainDlgProc) != IDOK; }