Hmac

This tool can generate a TSIG key value (base64) for you very easily. The key value complies with RFC2845. Secret Key Transaction Authentication for DNS (TSIG) is a secure method of authenticating clients making dynamic DNS update requests. The client application and the DNS server share a... Platforms: Windows

HashTool calculates the most common hash and hmac values of files and strings by using the 'Bouncy Castle Java cryptography API'. Platforms: Windows, Mac, Linux

This tool can create one-time-password values based on HOTP (RFC 4226: HOTP: An HMAC-Based One-Time Password Algorithm) and TOTP (RFC 6238: TOTP: Time-Based One-Time Password Algorithm) standards, and also supports client side of OAuth 1.0 protocol. Platforms: Windows, Mac, Linux

plone.session implements secure session management for Zope sites. In its default configuration plone.session uses an HMAC SHA-256 secure cryptographic hash to authenticate sessions. The hash is generated using the userid and a secret stored in the PAS plugin. Otherwise, the cookie format is... Platforms: *nix

Fsum Frontend is a free and easy-to-use tool that allows to compute message digests, checksums and HMACs for files and text strings. It supports drag-and-drop and you can handle multiple files at once. The checksum generated can be used to verify the integrity of the files. It supports 96... Platforms: Windows

Free calculator to compute multiple hashes, checksums and HMACs for files, text and hex strings. It allows to calculate hash (message digest), checksum and HMAC values based on the most popular algorithms: MD2, MD4, MD5, SHA1, SHA2 (SHA256, SHA384, SHA512), RIPEMD160, PANAMA, TIGER, CRC32,... Platforms: Windows

web-nsupdate is a web-based dynamic DNS update utility. The web-nsupdate package provides a simple, web-based facility for clients to send dynamic DNS updates. Clients are typically DHCP hosts, such as a Linux system acting as a gateway for residential broadband service. The client sends a... Platforms: *nix

Nest provides a secure IP VPN cryptographically protected packet tunnel. Nest is a secure IP VPN tunnel for FreeBSD. It connects two LANs over an insecure WAN. Nest works on the IP packet level. Its features include packet authentication and integrity checking (with 96-bit SHA1-derived HMAC),... Platforms: *nix

IMAP::Admin is a Perl module for basic IMAP server administration. SYNOPSIS use IMAP::Admin; $imap = IMAP::Admin->new(Server => name.of.server.com, Login => login_of_imap_administrator, Password => password_of_imap_adminstrator, Port => port# (143 is default), Separator => ".", #... Platforms: *nix

TCP Knocking provides a port knocking implementation. Often a secure system needs a port open so that only authorized persons can access a particular service and also the service should not exposed to attackers and worms that may use vulnerabilities that exist in the listening server. Port... Platforms: *nix

Yavipind is a secure tunnel aka 2 peers securely forwarding packets toward each other. It forwards any kind of packet (IPv4, IPv6 or other) sent over the virtual point-to-point device (e.g. tun0). It fully runs in linux userspace. yavipin has been written because i wasnt satisfied by the... Platforms: *nix

LDMUD is an LP-class MUD engine, meaning it is object-oriented, with all object clases stored in unique files. The engine runs compiled bytecode to manipulate those objects, and the underlying simulated processor is a stack machine. LDMud game is a 3rd-generation LP-class MUD, being derived... Platforms: *nix

Digest::SHA::PurePerl is a Perl implementation of SHA-1/224/256/384/512. SYNOPSIS In programs: # Functional interface use Digest::SHA::PurePerl qw(sha1 sha1_hex sha1_base64 ...); $digest = sha1($data); $digest = sha1_hex($data); $digest = sha1_base64($data); $digest = sha256($data);... Platforms: *nix

is a Netcat-clone, designed to be portable and offer strong encryption. It runs on Unix-like operating systems and on Microsoft Win32. sbd features AES-CBC-128 + HMAC-SHA1 encryption (by Christophe Devine), program execution (-e option), choosing source port, continuous reconnection with delay,... Platforms: *nix

Libgcrypt is a general purpose cryptographic library based on the code from GnuPG. It provides functions for all cryptograhic building blocks: symmetric ciphers (AES, DES, Blowfish, CAST5, Twofish, Arcfour) hash algorithms (MD4, MD5, RIPE-MD160, SHA-1, TIGER-192), MACs (HMAC for all hash... Platforms: *nix

libmhash is a free library which provides a uniform interface to a large number of hash algorithms. These algorithms can be used to compute checksums, message digests, and other signatures. The HMAC support implements the basics for message authentication, following RFC 2104. In the later... Platforms: *nix

libmcrypt is the library which implements all the algorithms and modes found in mcrypt. libmcrypt library is currently under development but it seems to work pretty good. Unlike most encryption libraries libmcrypt does not have everything (random number generators, hashes, hmac implementation,... Platforms: *nix

Checkpoint Commander is a cross-platform file management, viewing, and archiving / security tool. Checkpoint Commander project includes optional archive encryption using AES (AES-CBC-HMAC-SHA1).. Platforms: *nix

OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations, including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls. Starting with the... Platforms: Windows

OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations, including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls. Starting with the... Platforms: Linux