Digital Signature


Digital Signature: Certificate issues

Digital Signature: Cyclic Redundancy Code
  • CRC Tutorial
    Cyclic Redundancy Check Polynomials Tutorial.
    http://www.macs.hw.ac.uk/~pjbk/nets/crc/

Digital Signature: 0, 56, or 128-bit ( I. E )
    0 bit problems

  • Cipher Strength Appears as 0-Bit in Internet Explorer
    When you click About Internet Explorer on the Help menu, the cipher strength entry may be "0-Bit" and you may be unable to connect to secure Web sites.
    http://support.microsoft.com/?kbid=261328

  • How To Restore 128 bit:
    Virtual presentation : 0-bit Cipher Strength Encryption in Internet Explorer 4.x, 5.x, 6.0 for Windows 95/98 / Rename corrupt files and reinstall 128-bit encryption pack or install IE 4.x, 5.x, 6.0 SP1
    http://support.earthlink.net/mu/1/psc/img/walkthroughs/windows_9x_nt/browsers/ie_5.0/2767.psc.html

    56 bit problems

  • Encryption Pack Installation May Not Work If User GUID Is Too Long
    After you install the Windows 2000 High Encryption Pack and it appears to succeed, any program that relies on 128-bit security (such as Microsoft Internet Explorer) may still report 56-bit security in use rather than 128-bit after you reboot the computer.
    http://support.microsoft.com/?kbid=253540

  • Problems with 128-Bit Encryption Pack After Uninstalling Service Pack 1
    If you uninstall Windows 2000 Service Pack 1 (SP1) from a computer that has Windows 2000 High Encryption Pack (128-bit) installed, the encryption may be reduced to 56-bit.
    http://support.microsoft.com/?kbid=269675

  • SSL Encryption Report
    A site that check you cypher strength. You may have to accept the certificate.
    https://www.fortify.net/sslcheck.html

  • Enabling 128-bit Encryption for Routing and Remote Access
    If you upgrade a Remote Access Service (RAS) server that uses 128-bit encryption to Routing and Remote Access Service, you will have only 40-bit demand-dial and RAS encryption.
    http://support.microsoft.com/?kbid=169895

  • How to Force 128-bit Data Encryption for RAS
    With the release of the 128-bit Service Pack 3 (SP3) for Windows NT 4.0, RAS clients can now negotiate 128-bit RAS data encryption with a Windows NT 4.0 RAS server. Normal RAS data encryption is 40-bit. RAS clients that can take advantage of 128-bit data encryption are Windows NT Server or Workstation 4.0 with SP3 128-bit and Windows 95 Dial-Up Networking 1.2 128- bit.
    http://support.microsoft.com/?kbid=172215

  • Installing RRAS Disables 128-bit RAS Encryption
    http://support.microsoft.com/?kbid=174474

  • How to Upgrade Internet Explorer to 128-Bit Encryption
    http://support.microsoft.com/?kbid=195833

  • Error Message When You Attempt to Install 128-Bit Upgrade
    The data that the plugin requested did not download successfully.
    If you attempt to download the 128-bit upgrade again, you may receive the following error message:
    The plugin was found but an error in the plugin has occurred.
    http://support.microsoft.com/?kbid=232012

  • Err Msg: This Package Requires Internet Explorer 5.0...
     When you attempt to install the Internet Explorer 128-bit encryption update, you may receive the following error message:
    This package requires Internet Explorer 5.0 or Windows NT 4.0 with Service Pack 4 or 5.
    http://support.microsoft.com/?kbid=251043

  • Cannot Install the Internet Explorer High Encryption Pack
    When you attempt to install the Microsoft Internet Explorer High Encryption Pack, you may receive the following error message: This package requires Internet Explorer 5.01 or Windows NT 4.0 with Service Pack 6 or higher. Installation cancelled. The installation process quits.
    http://support.microsoft.com/?kbid=303823

  • Windows 2000 High Encryption Pack
    http://www.microsoft.com/windows2000/downloads/recommended/encryption/

  • See also: Dial Up Networking

Digital Signature: Encrypting File System

Digital Signature: Utilities
  • Cryptographic tools for developers
    The tools are built to work with the most popular Windows development environments including Microsoft's Visual Basic, Visual C++, and FoxPro etc...
    http://www.bokler.com/

  • Communication Horizon
    Security Encryption Component for 32/16-bit applications.
    http://www.netlib.com

  • MicroDesterity
    There are more than 250 routines in the library.
    http://www.microdexterity.com

  • Cryptext
    A freeware Windows 95 / Windows 98 / NT 4 shell extension that performs strong file encryption, and is available in English, French, German, and in Spanish. Links to interesting cryptography sites on the web.
    http://www.tip.net.au/~njpayne/

  • ePac
    A revolutionary new utility that allows you to compress and encrypt any files into a single executable
    http://www.bit-arts.com/

Digital Signature: Visual Basic
  • vbCrC Home page
    An ActiveX control designed to allow for computation of CRC's (Cyclic Redundancy Code) within the VB Programming language.
    http://www.iland.net/~jhaase/vbcrc/

  • CRC16
    Generation of CCITT 16 bit CRC checksums.
    ftp://ftp.picksys.com/freeware\crc16.txt

  • CRC-32 Class Module
    This Visual Basic 6.0 class module calculates a simple CRC-32 (CCITT-32), four byte Cyclic Redundancy Check.
    http://ourworld.compuserve.com/homepages/richard_grier/CRC32.htm

  • CRC32 Source Code
    This topic shows you how to compute Crc32 checksum with Visual Basic
    http://home1.swipnet.se/~w-13055/codepot.htm

  • HOWTO: Encrypt a String with Password Security.
    It is sometimes desirable to restrict the visibility of string constants within a Microsoft Visual Basic compiled application. http://support.microsoft.com/?kbid=110308

  • encrypt.zip
    Encryption/Decryption Demo [VB5].
    http://www.softcircuits.com/sw_vbsrc.htm

  • String Encryption ActiveX Control
    The Control lets you easily encrypt and decrypt strings. The control utilises a fast low-security algorithm, making it ideal for simple encryption needs.
    http://www.devpower.com/

  • Southern Cross Source Code
    Browse and you will find some interesting code on RLE Run Length Encoding, Encryption etc...
    http://www.geocities.com/CapeCanaveral/6740/allfiles.htm

  • CRC VB Code
    This topic shows you how to compute Crc32 checksum.
    http://home1.swipnet.se/~w-13055/sources/crc32.htm
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