RFC1509 Generic Security Service API : C-bindings. [c. 1993/09/01]

RFC2286 Test Cases for HMAC-RIPEMD160 and HMAC-RIPEMD128. [c. 1998/02/01]

RFC2078 Generic Security Service Application Program Interface, Version 2. [c. 1997/01/01]

RFC1810 Report on MD5 Performance. [c. 1995/06/01]

RFC1805 Location-Independent Data/Software Integrity Protocol. [c. 1995/06/01]

RFC1624 Computation of the Internet Checksum via Incremental Update. [c. 1994/05/01]

RFC1864 The Content-MD5 Header Field. [c. 1995/10/01]

RFC1320 The MD4 Message-Digest Algorithm. [c. 1992/04/01]

RFC1321 The MD5 Message-Digest Algorithm. [c. 1992/04/01]

RFC1186 MD4 Message Digest Algorithm. [ 1990/10/01]

Crc.Txt - CRC calculation tutorial

Design Techniques for Testable Embedded Error Checkers ( E.J. McCluskey ; IEEE Computer Magazine 1990-07)

Error-Control Coding in Computers ( Eiji Fujiwara, Dhiraj K. Pradhan ; IEEE Computer Magazine 1990-07)

md5(1) - calculate a message-digest fingerprint (checksum) for a file {oss}

rmd160(1) - calculate a message-digest fingerprint (checksum) for a file {oss}

sha1(1) - calculate a message-digest fingerprint (checksum) for a file {oss}

cksum(1) - display file checksums and block counts {oss}

cksum - checksum and count the bytes in a file {GPL,GNU}

md5sum - compute and check MD5 message digest {GPL,GNU}

sum - checksum and count the blocks in a file {GPL,GNU}

digest-20010807_2 - MD5/SHA-1/RIPEMD-160 checksumming utility

fastcrc-1.0 - Fast CRC routines

p5-Digest-MD5-2.16 - Perl5 interface to the MD5 algorithm

integrit-3.00.05 - Integrit is a file integrity verification programs

mdw-1.0 - A utility to check the MD5 sum of a webpage

p5-Digest-MD2-2.00 - Perl5 interface to the MD2 message digest algorithm

p5-Digest-SHA1-2.01 - Perl interface to the SHA-1 Algorithm

p5-Crypt-RIPEMD160-0.04 - RIPEMD-160 message digest algorithm

p5-Digest-BubbleBabble-0.01 - Perl5 interface to a fingerprint in "bubble babble" format

p5-Digest-HMAC-1.01 - Perl5 interface to HMAC Message-Digest Algorithms

p5-String-CRC32-1.2 - Perl interface for cyclic redundency check generation

sha-1.0.2 - Simple file hash program utilizing SHA-1, SHA-256, SHA-384, SHA-512

fingerprint - a uniform interface to MD5, snefru, et al {oss}

hash8 - Hash long identifiers into unique short ones {oss}

shash-0.2.3.tgz - generates or checks digests or mac

Modulinf.H - Defines structure and macros for status tracking {oss}

Modulus.C - Basic routines for creating and checking modulus values {oss}

shash-0.2.3-static.tgz - generates or checks digests or mac

MD4Init MD4Update MD4Final MD4End MD4File MD4Data (3) - calculate the RSA Data Security, Inc., ``MD4'' message digest {oss}

MD5Init MD5Update MD5Final MD5End MD5File MD5Data (3) - calculate the RSA Data Security, Inc., ``MD5'' message digest {oss}

SHA1Init SHA1Update SHA1Final SHA1Transform SHA1End SHA1File SHA1Data (3) - calculate the NIST Secure Hash Algorithm {oss}

RMD160Init RMD160Update RMD160Final RMD160Transform RMD160End RMD160File RMD160Data (3) - calculate the ``RIPEMD-160'' message digest {oss}

mhash-0.8.13 - Library provides an easy way to access strong hashes such as MD5 and SHA1

ruby-hmac-0.3 - A Ruby library which implements the HMAC algorithm

Parity.H,Parity.C - Header for PARITY.C {oss}

Crc.H - Header file for SNIPPETS CRC and checksum functions {oss}

Arccrc16.C - Compute CRC's using ARC, LZH algorithm {oss}

Crc_16.C - Calculated 16-bit CRC {oss}

Crc_16F.C - Fast 16-bit CRC {oss}

Crc_32.C - Table lookup 32-bit CRC {oss}

Checksum.C - Calculate checksum {oss}

Crc.Hpp,Crc.Cpp - Multiple CRC calculation class {oss}

Parity.C - Compute parity for any integral type {oss}

Checkexe.C - Checksum protection for executable files {oss}

Various CRC and checksum functions {oss}

MD5 - RSA's MD5 message digest algorithm. Computes a one-way "thumbnail" of a message that's pretty hard to spoof, so bad guys won't be able to tamper with your message. Also see the SHA module. [Perl] {oss}

SHA - Interface to the NIST Secure Hash Algorithm (SHA). Also see the MD5 module above. [Perl] {oss}

Mac::Apps::MacPGP - An interface to Pretty Good Privacy for Macs. [Perl] {oss}

Libraries and Functions

(The following links to subjects at this site retain your personalized selections.)

Kerberos authentication

Encryption

Random number generators are covered at Integer math - (including rational numbers, Big/Wide integers)

Up to Persistent Data - Gateway topic to externally stored and transmitted data.

see also Process Limits: Identity - Process ownership and Identity

see also Process Limits: File Access - Process Limits on File access (permissions, ownership, modes, et al)