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PGP - Pretty Good Privacy

PGP is a practical utility for cryptography and digital signature (certificate), based on the most modern, safe and efficient cryptography systems known. PGP was originally created and developed by Philip R. Zimmermann in 1991.

The U.S. Government was against Phil Zimmermann claiming violation of export restrictions on PGP criptography. Only in January 1996 the U.S. Courts definetively dropped the legal case. In March of the same year, PGP Inc. was formed, dealing with commercial versions of PGP, with Phil Zimmermann as CEO. In Dezember 1997, Network Associates Inc. (NAI) acquired the property of PGP Inc. company and Phil stayed on with NAI as Senyor Member to provide technical guidance for PGP's continued development, and to ensure the integrity of produced version (up to 7.0.3), free of back doors and with public release of complete source code.

In February 2001, he quits NAI to move on to his own projects on protect personal privacy. Phil launched OpenPGP Consortium, to facilitate interoperability of different implementations of the OpenPGP standard. In June 2002, PGP products and intellectual property were acquired from Network Associates by a new company called PGP Corporation, where Zimmermann now serves as special advisor and consultant. And Phil Zimmermann himself is now also a PGP reseller.

SSH - Secure Shell

  • SSH - Secure Shell
    By SSH Communications Security, also as ssh.com.
    SSH Technical Corner:
    SSH IETF Archive, Cryptography A-2-Z, IPsec Testing Zone, White Papers.
    SSH Secure Shell.
    Secure Shell Downloads: SSH Secure Shell for Handhelds, Servers, Windows Servers, Workstations - eCommerce (Online store), Evaluation, Non-commercial. SSH Secure Shell for Workstations (Client): Official download FTP site & mirrors.
  • OpenSSH
    OpenSSH is a FREE version of the SSH protocol suite of network connectivity tools. It contains support for SSH1 and SSH2 protocols. Also as openssh.org.
  • Ssh (Secure Shell) FAQ
    By Thomas König, 1997.
    Mirrors: MIT FAQs, FAQs.org.
  • Secure Shell (secsh) Charter - SSH protocol, IETF
  • FreeSSH.org
    SSH Resources. SSH Clients/Servers on Windows, Unix, Java and others.
  • PuTTY: A Free Win32 Telnet/SSH Client
    PuTTY is a free implementation of SSH, Telnet and Rlogin client for Win32 platforms, along with an xterm terminal emulator. It is written and maintained primarily by Simon Tatham. PuTTY Companion utilities: PSCP, Plink, Pageant and PuTTYgen. Legal warning: Use of PuTTY, PSCP, PSFTP and Plink is illegal in countries where encryption is outlawed. Telnet-only binary (PuTTYtel) has unrestricted use, since it uses no cryptography.
    Download PuTTY Windows on Intel x86: HTML, FTP.
  • Le Putty
    "Le Putty" is a ssh suite for Windows based on the very popular Putty project, but with added functionality that can not be included in the regular Putty. "Le Putty" should be as much as possible compatible with the original Putty. Added features: z modem transfers, keep alive with plink (useful when using plink for doing port forwarding), cleaned up command line options.
    Brought to you by Nicolas Barry, proud supporter of vim.
    SourceForge Project: leputty.
  • WinSCP
    WinSCP is a freeware SCP (Secure CoPy) client for Windows using SSH (Secure SHell). Its main function is safe copying of files between a local and a remote computer. Beyond this basic function, WinSCP manages some other actions with files. By Martin Prikryl.
  • SSHTools.com - Open Source SSH Toolkits for Java
    SSHTools.com is dedicated to the open source development of Java enabled SSH servers, client applications and development libraries. Hosted by SourceFforge.net, the site is the central resource for all the SSHTools open source projects.
    SSHTools Sourceforge, SourceForge Project: SSHTools - Java SSH Solutions.
  • FreSSH
    FreSSH is a free implementation of the SSH communication protocol. It is compact, modular, portable, and designed for security and performance. It is a completely new implementation sharing no code with any other implementation of the SSH communication protocol.
  • SSHDOS
    SSHDOS is a DOS port of SSH, SCP, SFTP and Telnet clients. Needs a packet driver (or a PPP driver for dialup connection) only.
    See WATTCP, Erick Engelke's free and easy way to add TCP/IP connectivity to your DOS applications.
    sshdos SourceForge Project.
  • Google Directory: Internet Protocols: SSH
    SSH Clients, Servers, Documentation. See also Computer Security: Cryptography.

Cryptographic Tunneling in Networks

TLS - Transport Layer Security & SSL - Secure Sockets Layer

Virtual Private Network (VPN)

IPSec - IP Security

IPsec is a suite of cryptographic extensions to the normal TCP/IP protocol suite. Before IPsec, applications had to handle their own cryptography functions (like SSL for HTTP). With IPsec, this logic can be pushed down to the network layer.

Cryptographic Hash & Message Digest

MD5 - Message Digest #5

SHA/SHS - Secure Hash Algorithms / Standard

The SHA (Secure Hash Algorithm) family is a set of related cryptographic hash functions. The most commonly used function in the family, SHA-1, is employed in a large variety of popular security applications and protocols, including SSL, PGP, SSH, S/MIME, and IPSec. SHA-1 is considered to be the successor to MD5, an earlier, widely-used hash function. The algorithms were designed by the National Security Agency (NSA) and published as a US government standard. (From Wikipedia)

HMAC - Hash Message Authentication Code

Public-Key Cryptography

Public-Key Cryptography Standards (PKCS)

The Public-Key Cryptography Standards are specifications produced by RSA Laboratories in cooperation with secure systems developers worldwide for the purpose of accelerating the deployment of public-key cryptography. First published in 1991 as a result of meetings with a small group of early adopters of public-key technology, the PKCS documents have become widely referenced and implemented. Contributions from the PKCS series have become part of many formal and de facto standards, including ANSI X9 documents, PKIX, SET, S/MIME, and SSL.

Cryptographic Message Syntax (CMS)

S/MIME - Secure MIME

Secret-Key Cryptography

Advanced Encryption Standard (AES) & Rijndael

Rijndael is a block cipher, designed by Joan Daemen and Vincent Rijmen, selected by NIST for the Advanced Encryption Standard (AES).

Protocols & Applications

  • Security Protocols and Specifications
    Cryptographic APIs, Secure Internet Protocols, Secure IP/Datagrams, Random Number Generators, Certificates, Envelopes and MIME, Digital Signing and Content Rating, Privacy Enhancement for Internet MAIL (PEM), Public Key Exchange, Cryptographic Specifications, Public Source, Other References, Privacy & Politics.
  • advICE : Reference : Networking
    Internet Security Systems Reference by Internet Security Systems (ISS, formerly Network ICE).
  • TechFest - Networking Protocols
    By TechFest. Links of general information on networking protocols. TCP/IP, IPv6 & NGI, Routing, IAN, ICMP, E-Mail (POP, IMAP, SMTP), FTP, TFTP, Telnet, HTTP, HTML, UDP, PPP, SLIP, DNS, DHCP, SOCKS, NNTP, NTP, LDAP, NHRP, MPLS, IP Multicast, RSVP, , diffserv, intserv, IPSec, Firewalls, IP over ATM, Voice Over IP (VoIP), Multimedia, OSI, FTAM, Netware IPX, AppleTalk, DECnet, Xerox XNS, Banyan Vines, NETBIOS, SNA, DLS, VLANs, Bridging, Trunking / Link Aggregation, Jini.
  • Cryptomak Cipher Tools
    Cryptomak is collection of php scripts for encryption and decryption purpose. Cryptomak is using Phrame as web application platform which implements MVC (Model, View, Controller) design. At the view layer, Cryptomak is using Smarty as template engine.
    Cryptomak live Demos - Cipher: Simple Shift, Monoalphabetic Substitution, Columnar Transposition, Vigenere Cipher, Permutation, Affine Cipher, Xoft Cipher, Base64 Cipher - Tool: Frequency Distribution, Index of Coincidence.

HTTP Authentication

Kerberos

SOCKS

SOCKS is a generic proxy protocol for TCP/IP-based networking applications. SOCKS includes two components, the SOCKS server and the SOCKS client. The SOCKS server is implemented at the application layer. The SOCKS client is implemented between applications and transport layer.

PAM - Pluggable Authentication Modules

Single Sign-On (SSO)

  • Single sign-on
    From Wikipedia, the free encyclopedia.
  • CoSign - Collaborative single sign-on
    CoSign is an open source Web Single Sign-On, for secure, intra-institutional web authentication. Also as weblogin.org. By University of Michigan.
  • Central Authentication Service (CAS)
    The JA-SIG Central Authentication Service was originally developed by Yale University Information Technology Services (ITS). It has since become a JA-SIG project. Additional CAS client implementations available for Apache (MOD_CAS, AuthCAS mod_perl), ISAPI (CCCI CAS agent), Java (J2SE, JSP, JSR-168 portlets, Spring/Acegi), ColdFusion, PAM, Perl, PHP (PHP client, Prado), Ruby on Rails, uPortal, WebObjects, Zope (CASUserFolder).
  • ESOE - Enterprise Sign On Engine
    Integrated identity management, single sign on, authorization, federation and accountability for enterprise resources access, in a very extensible manner. The ESOE is built using the OASIS SAML 2.0 specification, and the ESOE's engine is built around a reduced version of the OASIS XACML 2.0 standard which they have called Lightweight XACML (LXACML). ESOE is open source, licensed under Apache 2.0.
    ESOE Users wiki: Installation and Administration Documentation, Support and Mailing Lists, Downloads.
  • X/Open Single Sign-on Service (XSSO)
    XSSO Architecture, XSSO Sign-on Services, Pluggable Authentication Modules (PAM), XSSO Account Management Services.
  • See: Java APIs: Security: Single Sign-On (SSO)

Server Gateway Cryptography (SGC)

SET - Secure Electronic Transaction

The Secure Electronic Transaction (SET) Specification is an open technical standard for the commerce industry, developed by Visa and MasterCard as a way to facilitate secure payment card transactions over the Internet. Digital Certificates create a trust chain throughout the transaction, verifying cardholder and merchant validity.

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