HMAC

A security toolkit letting even less experienced programmers add encryption and authentication services to their apps, features that are becoming indispensable. The library hides low-level details of security from developers. It supports a variety of algorithms for symmetric/asymmetric encryption, authentication, and hashing. The library is free for non-commercial/shareware projects. It is written in C. ActiveX and C++ wrappers are available.

Fast, highly optimized implementation of hash and checksum algorithms: MD2, MD4, MD5, SHA-1, SHA-2(256,384,512), RIPEMD(128,160,256,320), PANAMA, TIGER, CRC-32, CRC-16, CRC-CCITT, ADLER32. The library allows to calculate hashes (message digests), checksums and HMACs for files, memory blocks, strings, streaming data. Has no external dependencies such as MFC DLL, COM/DCOM or other component. The help file has examples in Visual Basic(VB), C, C++.

Iside compares files and folders by computing their hash code (MD5,SHA1,...). Right click on a file, select Copy and by right clicking on another file you will discover if they are equal. Includes file comparison, hash displaying tool plus a complete folder comparison tool.
The hash functions allow to determine if two files are different even if their size is the same.
Ideal tool for configuration managers, programmers, deployers.

Free, fast calculator to compute hash, checksum, HMAC values for file, text and hex string. Supports popular message digest and check sum algorithms: MD2,MD4,MD5, SHA1,SHA2, RIPEMD160,PANAMA,TIGER, CRC32,ADLER32, and the hash used in eMule/eDonkey (eDonkey2000,ed2k). With this tool you can test for corruption FTP download/upload transfers, compare music,audio,video,game,image files, verify a CD, perform checking of mp3,mpeg,vcd,iso,zip downloads.

DynSite automatically updates your dynamic IP address each time it changes on one or many dynamic DNS services or by email. This allows anyone to connect to the servers running on your own computer using a fully qualified domain name. Since your host name never changes it makes accessing your servers much easier than using your IP address which changes each time you reconnect. This is also useful when you want to remotely control your PC.

The Hyper Hasher Suite will fulfill all your file hashing needs. Hyper Hasher allows you to calculate 26 different hash/checksum and HMAC values for any file on your system, while the HashFile utility adds support for MD5 & SFV file creation and verification. These tools feature advanced options including a unique customizable interface, configuration saving, optional windows shell integration, Pentium 4 optimizations for speed, and much more!

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 secret key value which is used to sign (HMAC-MD5) each update request. You can think of the key name as a user ID, and the key value as a password.

The DNS Library is a COM object that makes dynamic DNS updates to BIND, Microsoft and other RFC-2136-compatible DNS servers possible from any scripting languages in an easy way. The library supports the following record types: A, MX, SRV, NS, CNAME, PTR, TXT. The library implements 5 components: DnsLibrary.Server, DnsLibrary.Resolver, DnsLibrary.Authentication, DnsLibrary.ResourceRecord, DnsLibrary.ResourceRecordSet. Secure updates supported.