viewkey.cpp

伯克利做的SFTP安全文件传输协议

//  $Archive:: /STP/viewkey/viewkey.cpp                               $
//     $Date: 1999/10/08 07:00:51 $
// $Revision: 1.9 $
// Description: Viewkey main
// copyright SafeTP Development Group, Inc., 2000  Terms of use are as specified in license.txt
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "keyutils.h"
#include "sdsa.h"
#include "base64.h"
#include "str.h"
#include "datablok.h"
#include "security.h"
#include "sftpver.h"      // SFTP_version

void Usage(char* argvzero) {
  fprintf(stderr, "viewkey version %s\n", SFTP_version);
  fprintf(stderr, "Usage:\n");
  fprintf(stderr, "  %s <keyname>\n\n", argvzero);
  fprintf(stderr, "Example:\n");
  fprintf(stderr, "  %s DSA/public.key\n", argvzero);
  exit(1);
  }

// make argument relative to cwd
string userConfigDir()
{
  return string(".");
}

int main(int argc, char** argv) {
  if (argc != 2) Usage(argv[0]);
  
  string pathname(argv[1]);
  DataBlock key(4096);

  bool isDSAkey = !!strstr(pathname, "DSA");
  bool ispublickey = !!strstr(pathname, "public");

  if (!LoadKey(pathname, key, isDSAkey)) {
    fprintf(stderr, "Key %s not found.\n", pathname.pchar());
    return 1;
    }
  //unsigned long checksum = GetKeyChecksum(key.getData(), key.getDataLen());

  string branding;
  string shaString = GetKeyShaString(key);
  if (isDSAkey && ispublickey) {
    try {
      DSABrandedPublicKey branded(key);
      branding = branded.getName();
      }
    catch (xSecurity&) {
      branding = "WARNING: This key is corrupted or has been tampered with.";
      }
    }

  if (key.getAllocated() < key.getDataLen() * 2)
    key.setAllocated(key.getDataLen() * 2);
  key.setDataLen(base64enc(key.getData(),key.getData(),key.getDataLen()));
  key.setDataLen(ReformatKey((char*)key.getData()));

  char line[255];
  for (int i=0; i < KEY_LINE_LENGTH; i++) line[i] = '-';
  line[KEY_LINE_LENGTH] = '\0';
  printf("Key: %s\n", pathname.pchar());
  printf("%s\n",line);
  printf("%s",key.getData());
  printf("%s\n",line);
  if (isDSAkey && ispublickey) {
    printf("Branding: %s\n",branding.pchar());
    printf("Sha:      %s\n", shaString.pcharc());
    printf("%s\n",line);
    }
  // printf("Checksum: 0x%08lX\n",checksum);
  printf("%s\n",line);
  return 0;
  }