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puttygen.c
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puttygen.c
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/*
* PuTTY key generation front end.
*/
#include <windows.h>
#include <commctrl.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#define PUTTY_DO_GLOBALS
#include "putty.h"
#include "ssh.h"
#include "winstuff.h"
#ifdef MSVC4
#define ICON_BIG 1
#endif
#define WM_DONEKEY (WM_XUSER + 1)
#define DEFAULT_KEYSIZE 1024
static int requested_help;
static char *cmdline_keyfile = NULL;
/*
* Print a modal (Really Bad) message box and perform a fatal exit.
*/
void modalfatalbox(char *fmt, ...)
{
va_list ap;
char *stuff;
va_start(ap, fmt);
stuff = dupvprintf(fmt, ap);
va_end(ap);
MessageBox(NULL, stuff, "PuTTYgen Fatal Error",
MB_SYSTEMMODAL | MB_ICONERROR | MB_OK);
sfree(stuff);
exit(1);
}
/* ----------------------------------------------------------------------
* Progress report code. This is really horrible :-)
*/
#define PROGRESSRANGE 65535
#define MAXPHASE 5
struct progress {
int nphases;
struct {
int exponential;
unsigned startpoint, total;
unsigned param, current, n; /* if exponential */
unsigned mult; /* if linear */
} phases[MAXPHASE];
unsigned total, divisor, range;
HWND progbar;
};
static void progress_update(void *param, int action, int phase, int iprogress)
{
struct progress *p = (struct progress *) param;
unsigned progress = iprogress;
int position;
if (action < PROGFN_READY && p->nphases < phase)
p->nphases = phase;
switch (action) {
case PROGFN_INITIALISE:
p->nphases = 0;
break;
case PROGFN_LIN_PHASE:
p->phases[phase-1].exponential = 0;
p->phases[phase-1].mult = p->phases[phase].total / progress;
break;
case PROGFN_EXP_PHASE:
p->phases[phase-1].exponential = 1;
p->phases[phase-1].param = 0x10000 + progress;
p->phases[phase-1].current = p->phases[phase-1].total;
p->phases[phase-1].n = 0;
break;
case PROGFN_PHASE_EXTENT:
p->phases[phase-1].total = progress;
break;
case PROGFN_READY:
{
unsigned total = 0;
int i;
for (i = 0; i < p->nphases; i++) {
p->phases[i].startpoint = total;
total += p->phases[i].total;
}
p->total = total;
p->divisor = ((p->total + PROGRESSRANGE - 1) / PROGRESSRANGE);
p->range = p->total / p->divisor;
SendMessage(p->progbar, PBM_SETRANGE, 0, MAKELPARAM(0, p->range));
}
break;
case PROGFN_PROGRESS:
if (p->phases[phase-1].exponential) {
while (p->phases[phase-1].n < progress) {
p->phases[phase-1].n++;
p->phases[phase-1].current *= p->phases[phase-1].param;
p->phases[phase-1].current /= 0x10000;
}
position = (p->phases[phase-1].startpoint +
p->phases[phase-1].total - p->phases[phase-1].current);
} else {
position = (p->phases[phase-1].startpoint +
progress * p->phases[phase-1].mult);
}
SendMessage(p->progbar, PBM_SETPOS, position / p->divisor, 0);
break;
}
}
extern char ver[];
#define PASSPHRASE_MAXLEN 512
struct PassphraseProcStruct {
char *passphrase;
char *comment;
};
/*
* Dialog-box function for the passphrase box.
*/
static int CALLBACK PassphraseProc(HWND hwnd, UINT msg,
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);
/*
* 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);
else
MessageBeep(0);
return 0;
case IDCANCEL:
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;
}
return 0;
case WM_CLOSE:
EndDialog(hwnd, 0);
return 0;
}
return 0;
}
/*
* Prompt for a key file. Assumes the filename buffer is of size
* FILENAME_MAX.
*/
static int prompt_keyfile(HWND hwnd, char *dlgtitle,
char *filename, int save, int ppk)
{
OPENFILENAME of;
memset(&of, 0, sizeof(of));
#ifdef OPENFILENAME_SIZE_VERSION_400
of.lStructSize = OPENFILENAME_SIZE_VERSION_400;
#else
of.lStructSize = sizeof(of);
#endif
of.hwndOwner = hwnd;
if (ppk) {
of.lpstrFilter = "PuTTY Private Key Files (*.ppk)\0*.ppk\0"
"All Files (*.*)\0*\0\0\0";
of.lpstrDefExt = ".ppk";
} else {
of.lpstrFilter = "All Files (*.*)\0*\0\0\0";
}
of.lpstrCustomFilter = NULL;
of.nFilterIndex = 1;
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);
else
return GetOpenFileName(&of);
}
/*
* Dialog-box function for the Licence box.
*/
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);
return 0;
}
return 0;
case WM_CLOSE:
EndDialog(hwnd, 1);
return 0;
}
return 0;
}
/*
* Dialog-box function for the About box.
*/
static int CALLBACK AboutProc(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);
}
SetDlgItemText(hwnd, 100, ver);
return 1;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDOK:
EndDialog(hwnd, 1);
return 0;
case 101:
EnableWindow(hwnd, 0);
DialogBox(hinst, MAKEINTRESOURCE(214), hwnd, LicenceProc);
EnableWindow(hwnd, 1);
SetActiveWindow(hwnd);
return 0;
}
return 0;
case WM_CLOSE:
EndDialog(hwnd, 1);
return 0;
}
return 0;
}
/*
* Thread to generate a key.
*/
struct rsa_key_thread_params {
HWND progressbar; /* notify this with progress */
HWND dialog; /* notify this on completion */
int keysize; /* bits in key */
int is_dsa;
struct RSAKey *key;
struct dss_key *dsskey;
};
static DWORD WINAPI generate_rsa_key_thread(void *param)
{
struct rsa_key_thread_params *params =
(struct rsa_key_thread_params *) param;
struct progress prog;
prog.progbar = params->progressbar;
progress_update(&prog, PROGFN_INITIALISE, 0, 0);
if (params->is_dsa)
dsa_generate(params->dsskey, params->keysize, progress_update, &prog);
else
rsa_generate(params->key, params->keysize, progress_update, &prog);
PostMessage(params->dialog, WM_DONEKEY, 0, 0);
sfree(params);
return 0;
}
struct MainDlgState {
int collecting_entropy;
int generation_thread_exists;
int key_exists;
int entropy_got, entropy_required, entropy_size;
int keysize;
int ssh2, is_dsa;
char **commentptr; /* points to key.comment or ssh2key.comment */
struct ssh2_userkey ssh2key;
unsigned *entropy;
struct RSAKey key;
struct dss_key dsskey;
HMENU filemenu, keymenu, cvtmenu;
};
static void hidemany(HWND hwnd, const int *ids, int hideit)
{
while (*ids) {
ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW));
}
}
static void setupbigedit1(HWND hwnd, int id, int idstatic, struct RSAKey *key)
{
char *buffer;
char *dec1, *dec2;
dec1 = bignum_decimal(key->exponent);
dec2 = bignum_decimal(key->modulus);
buffer = dupprintf("%d %s %s %s", bignum_bitcount(key->modulus),
dec1, dec2, key->comment);
SetDlgItemText(hwnd, id, buffer);
SetDlgItemText(hwnd, idstatic,
"&Public key for pasting into authorized_keys file:");
sfree(dec1);
sfree(dec2);
sfree(buffer);
}
static void setupbigedit2(HWND hwnd, int id, int idstatic,
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);
SetDlgItemText(hwnd, idstatic, "&Public key for pasting into "
"OpenSSH authorized_keys2 file:");
sfree(pub_blob);
sfree(buffer);
}
static int save_ssh1_pubkey(char *filename, struct RSAKey *key)
{
char *dec1, *dec2;
FILE *fp;
dec1 = bignum_decimal(key->exponent);
dec2 = bignum_decimal(key->modulus);
fp = fopen(filename, "wb");
if (!fp)
return 0;
fprintf(fp, "%d %s %s %s\n",
bignum_bitcount(key->modulus), dec1, dec2, key->comment);
fclose(fp);
sfree(dec1);
sfree(dec2);
return 1;
}
/*
* Warn about the obsolescent key file format.
*/
void old_keyfile_warning(void)
{
static const char mbtitle[] = "PuTTY Key File Warning";
static const char message[] =
"You are loading an SSH 2 private key which has an\n"
"old version of the file format. This means your key\n"
"file is not fully tamperproof. Future versions of\n"
"PuTTY may stop supporting this private key format,\n"
"so we recommend you convert your key to the new\n"
"format.\n"
"\n"
"Once the key is loaded into PuTTYgen, you can perform\n"
"this conversion simply by saving it again.";
MessageBox(NULL, message, mbtitle, MB_OK);
}
static int save_ssh2_pubkey(char *filename, struct ssh2_userkey *key)
{
unsigned char *pub_blob;
char *p;
int pub_len;
int i, column;
FILE *fp;
pub_blob = key->alg->public_blob(key->data, &pub_len);
fp = fopen(filename, "wb");
if (!fp)
return 0;
fprintf(fp, "---- BEGIN SSH2 PUBLIC KEY ----\n");
fprintf(fp, "Comment: \"");
for (p = key->comment; *p; p++) {
if (*p == '\\' || *p == '\"')
fputc('\\', fp);
fputc(*p, fp);
}
fprintf(fp, "\"\n");
i = 0;
column = 0;
while (i < pub_len) {
char buf[5];
int n = (pub_len - i < 3 ? pub_len - i : 3);
base64_encode_atom(pub_blob + i, n, buf);
i += n;
buf[4] = '\0';
fputs(buf, fp);
if (++column >= 16) {
fputc('\n', fp);
column = 0;
}
}
if (column > 0)
fputc('\n', fp);
fprintf(fp, "---- END SSH2 PUBLIC KEY ----\n");
fclose(fp);
sfree(pub_blob);
return 1;
}
enum {
controlidstart = 100,
IDC_QUIT,
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_SAVEPUB,
IDC_BOX_PARAMS,
IDC_TYPESTATIC, IDC_KEYSSH1, IDC_KEYSSH2RSA, IDC_KEYSSH2DSA,
IDC_BITSSTATIC, IDC_BITS,
IDC_ABOUT,
IDC_GIVEHELP,
IDC_IMPORT, IDC_EXPORT_OPENSSH, IDC_EXPORT_SSHCOM
};
static const int nokey_ids[] = { IDC_NOKEY, 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_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT,
IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 0
};
/*
* Small UI helper function to switch the state of the main dialog
* by enabling and disabling controls and menu items.
*/
void ui_set_state(HWND hwnd, struct MainDlgState *state, int status)
{
int type;
switch (status) {
case 0: /* no key */
hidemany(hwnd, nokey_ids, FALSE);
hidemany(hwnd, generating_ids, TRUE);
hidemany(hwnd, gotkey_ids, TRUE);
EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0);
EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 0);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 1);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 1);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 1);
EnableWindow(GetDlgItem(hwnd, IDC_BITS), 1);
EnableMenuItem(state->filemenu, IDC_LOAD, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->filemenu, IDC_SAVE, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_GENERATE, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->cvtmenu, IDC_EXPORT_OPENSSH,
MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->cvtmenu, IDC_EXPORT_SSHCOM,
MF_GRAYED|MF_BYCOMMAND);
break;
case 1: /* generating key */
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);
EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 0);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 0);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 0);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 0);
EnableWindow(GetDlgItem(hwnd, IDC_BITS), 0);
EnableMenuItem(state->filemenu, IDC_LOAD, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->filemenu, IDC_SAVE, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_GENERATE, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->cvtmenu, IDC_EXPORT_OPENSSH,
MF_GRAYED|MF_BYCOMMAND);
EnableMenuItem(state->cvtmenu, IDC_EXPORT_SSHCOM,
MF_GRAYED|MF_BYCOMMAND);
break;
case 2:
hidemany(hwnd, nokey_ids, TRUE);
hidemany(hwnd, generating_ids, TRUE);
hidemany(hwnd, gotkey_ids, FALSE);
EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1);
EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 1);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 1);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 1);
EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 1);
EnableWindow(GetDlgItem(hwnd, IDC_BITS), 1);
EnableMenuItem(state->filemenu, IDC_LOAD, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->filemenu, IDC_SAVE, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_GENERATE, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA,MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA,MF_ENABLED|MF_BYCOMMAND);
EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_ENABLED|MF_BYCOMMAND);
/*
* Enable export menu items if and only if the key type
* supports this kind of export.
*/
type = state->ssh2 ? SSH_KEYTYPE_SSH2 : SSH_KEYTYPE_SSH1;
#define do_export_menuitem(x,y) \
EnableMenuItem(state->cvtmenu, x, MF_BYCOMMAND | \
(import_target_type(y)==type?MF_ENABLED:MF_GRAYED))
do_export_menuitem(IDC_EXPORT_OPENSSH, SSH_KEYTYPE_OPENSSH);
do_export_menuitem(IDC_EXPORT_SSHCOM, SSH_KEYTYPE_SSHCOM);
#undef do_export_menuitem
break;
}
}
void load_key_file(HWND hwnd, struct MainDlgState *state,
Filename filename, int was_import_cmd)
{
char passphrase[PASSPHRASE_MAXLEN];
int needs_pass;
int type, realtype;
int ret;
char *comment;
struct PassphraseProcStruct pps;
struct RSAKey newkey1;
struct ssh2_userkey *newkey2 = NULL;
type = realtype = key_type(&filename);
if (type != SSH_KEYTYPE_SSH1 &&
type != SSH_KEYTYPE_SSH2 &&
!import_possible(type)) {
char msg[256];
sprintf(msg, "Couldn't load private key (%s)",
key_type_to_str(type));
MessageBox(NULL, msg,
"PuTTYgen Error", MB_OK | MB_ICONERROR);
return;
}
if (type != SSH_KEYTYPE_SSH1 &&
type != SSH_KEYTYPE_SSH2) {
realtype = type;
type = import_target_type(type);
}
comment = NULL;
if (realtype == SSH_KEYTYPE_SSH1)
needs_pass = rsakey_encrypted(&filename, &comment);
else if (realtype == SSH_KEYTYPE_SSH2)
needs_pass =
ssh2_userkey_encrypted(&filename, &comment);
else
needs_pass = import_encrypted(&filename, realtype,
&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 (type == SSH_KEYTYPE_SSH1) {
if (realtype == type)
ret = loadrsakey(&filename, &newkey1,
passphrase);
else
ret = import_ssh1(&filename, realtype,
&newkey1, passphrase);
} else {
if (realtype == type)
newkey2 = ssh2_load_userkey(&filename,
passphrase);
else
newkey2 = import_ssh2(&filename, realtype,
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) {
/*
* Now update the key controls with all the
* key data.
*/
{
SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT,
passphrase);
SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT,
passphrase);
if (type == SSH_KEYTYPE_SSH1) {
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,
IDC_PKSTATIC, &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,
IDC_PKSTATIC, &state->ssh2key);
}
SetDlgItemText(hwnd, IDC_COMMENTEDIT,
*state->commentptr);
}
/*
* Finally, hide the progress bar and show
* the key data.
*/
ui_set_state(hwnd, state, 2);
state->key_exists = TRUE;
/*
* If the user has imported a foreign key
* using the Load command, let them know.
* If they've used the Import command, be
* silent.
*/
if (realtype != type && !was_import_cmd) {
char msg[512];
sprintf(msg, "Successfully imported foreign key\n"
"(%s).\n"
"To use this key with PuTTY, you need to\n"
"use the \"Save private key\" command to\n"
"save it in PuTTY's own format.",
key_type_to_str(realtype));
MessageBox(NULL, msg, "PuTTYgen Notice",
MB_OK | MB_ICONINFORMATION);
}
}
}
/*
* Dialog-box function for the main PuTTYgen dialog box.
*/
static int CALLBACK MainDlgProc(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam)
{
static const char generating_msg[] =
"Please wait while a key is generated...";
static const char entropy_msg[] =
"Please generate some randomness by moving the mouse over the blank area.";
struct MainDlgState *state;
switch (msg) {
case WM_INITDIALOG:
if (help_path)
SetWindowLong(hwnd, GWL_EXSTYLE,
GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_CONTEXTHELP);
else {
/*
* If we add a Help button, this is where we destroy it
* if the help file isn't present.
*/
}
requested_help = FALSE;
SendMessage(hwnd, WM_SETICON, (WPARAM) ICON_BIG,
(LPARAM) LoadIcon(hinst, MAKEINTRESOURCE(200)));
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);
{
HMENU menu, menu1;
menu = CreateMenu();
menu1 = CreateMenu();
AppendMenu(menu1, MF_ENABLED, IDC_LOAD, "&Load private key");
AppendMenu(menu1, MF_ENABLED, IDC_SAVEPUB, "Save p&ublic key");
AppendMenu(menu1, MF_ENABLED, IDC_SAVE, "&Save private key");
AppendMenu(menu1, MF_SEPARATOR, 0, 0);
AppendMenu(menu1, MF_ENABLED, IDC_QUIT, "E&xit");
AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&File");
state->filemenu = menu1;
menu1 = CreateMenu();
AppendMenu(menu1, MF_ENABLED, IDC_GENERATE, "&Generate key pair");
AppendMenu(menu1, MF_SEPARATOR, 0, 0);
AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH1, "SSH&1 key (RSA)");
AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH2RSA, "SSH2 &RSA key");
AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH2DSA, "SSH2 &DSA key");
AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&Key");
state->keymenu = menu1;
menu1 = CreateMenu();
AppendMenu(menu1, MF_ENABLED, IDC_IMPORT, "&Import key");
AppendMenu(menu1, MF_SEPARATOR, 0, 0);
AppendMenu(menu1, MF_ENABLED, IDC_EXPORT_OPENSSH,
"Export &OpenSSH key");
AppendMenu(menu1, MF_ENABLED, IDC_EXPORT_SSHCOM,
"Export &ssh.com key");
AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1,
"&Conversions");
state->cvtmenu = menu1;
menu1 = CreateMenu();
AppendMenu(menu1, MF_ENABLED, IDC_ABOUT, "&About");
if (help_path)
AppendMenu(menu1, MF_ENABLED, IDC_GIVEHELP, "&Help");
AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&Help");
SetMenu(hwnd, menu);
}
/*
* 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);
}
{
struct ctlpos cp, cp2;
/* Accelerators used: acglops1rbd */
ctlposinit(&cp, hwnd, 4, 4, 4);
beginbox(&cp, "Key", IDC_BOX_KEY);
cp2 = cp;
statictext(&cp2, "No key.", 1, IDC_NOKEY);
cp2 = cp;
statictext(&cp2, "", 1, IDC_GENERATING);
progressbar(&cp2, IDC_PROGRESS);
bigeditctrl(&cp,
"&Public key for pasting into authorized_keys file:",
IDC_PKSTATIC, IDC_KEYDISPLAY, 5);
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);
static2btn(&cp, "Save the generated key", IDC_SAVESTATIC,
"Save p&ublic key", IDC_SAVEPUB,
"&Save private key", IDC_SAVE);
endbox(&cp);
beginbox(&cp, "Parameters", IDC_BOX_PARAMS);
radioline(&cp, "Type of key to generate:", IDC_TYPESTATIC, 3,
"SSH&1 (RSA)", IDC_KEYSSH1,
"SSH2 &RSA", IDC_KEYSSH2RSA,
"SSH2 &DSA", IDC_KEYSSH2DSA, NULL);
staticedit(&cp, "Number of &bits in a generated key:",
IDC_BITSSTATIC, IDC_BITS, 20);
endbox(&cp);
}
CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2DSA, IDC_KEYSSH1);
CheckMenuRadioItem(state->keymenu, IDC_KEYSSH1, IDC_KEYSSH2DSA,
IDC_KEYSSH1, MF_BYCOMMAND);
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
* buttons, because with no key we obviously can't save
* anything.
*/
ui_set_state(hwnd, state, 0);
/*
* Load a key file if one was provided on the command line.
*/
if (cmdline_keyfile)
load_key_file(hwnd, state, filename_from_str(cmdline_keyfile), 0);
return 1;
case WM_MOUSEMOVE:
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->is_dsa = state->is_dsa;
params->key = &state->key;
params->dsskey = &state->dsskey;
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_KEYSSH1:
case IDC_KEYSSH2RSA: