Free cryptographic api software for linux

Crypto++ project is a free C++ class library of cryptographic schemes.
Main features:
- a class hierarchy with an API defined by abstract base classes
- AES (Rijndael) and AES candidates: RC6, MARS, Twofish, Serpent, CAST-256
- other symmetric block ciphers: IDEA, DES, Triple-DES (DES-EDE2 and DES-EDE3), DESX (DES-XEX3), RC2, RC5, Blowfish, Diamond2, TEA, SAFER, 3-WAY, GOST, SHARK, CAST-128, Square, Skipjack, Camellia, SHACAL-2
- generic cipher modes: ECB, CBC, CBC ciphertext stealing (CTS), CFB, OFB, counter mode (CTR)
- stream ciphers: Panama, ARC4, SEAL, WAKE, WAKE-OFB, BlumBlumShub
- public-key cryptography: RSA, DSA, ElGamal, Nyberg-Rueppel (NR), Rabin, Rabin-Williams (RW), LUC, LUCELG, DLIES (variants of DHAES), ESIGN
- padding schemes for public-key systems: PKCS#1 v2.0, OAEP, PSS, PSSR, IEEE P1363 EMSA2 and EMSA5
- key agreement schemes: Diffie-Hellman (DH), Unified Diffie-Hellman (DH2), Menezes-Qu-Vanstone (MQV), LUCDIF, XTR-DH
- elliptic curve cryptography: ECDSA, ECNR, ECIES, ECDH, ECMQV
- one-way hash functions: SHA-1, MD2, MD4, MD5, HAVAL, RIPEMD-128, RIPEMD-256, RIPEMD-160, RIPEMD-320, Tiger, SHA-2 (SHA-224, SHA-256, SHA-384, and SHA-512), Panama, Whirlpool
- message authentication codes: MD5-MAC, HMAC, XOR-MAC, CBC-MAC, DMAC, Two-Track-MAC
- cipher constructions based on hash functions: Luby-Rackoff, MDC
- pseudo random number generators (PRNG): ANSI X9.17 appendix C, PGPs RandPool
- password based key derivation functions: PBKDF1 and PBKDF2 from PKCS #5
- Shamirs secret sharing scheme and Rabins information dispersal algorithm (IDA)
- DEFLATE (RFC 1951) compression/decompression with gzip (RFC 1952) and zlib (RFC 1950) format support
- fast multi-precision integer (bignum) and polynomial operations, with SSE2 optimizations for Pentium 4 processors, and support for 64-bit CPUs
- finite field arithmetics, including GF(p) and GF(2^n)
- prime number generation and verification
- various miscellaneous modules such as base 64 coding and 32-bit CRC
- class wrappers for these operating system features (optional):
- high resolution timers on Windows, Unix, and MacOS
- Berkeley and Windows style sockets
- Windows named pipes
- /dev/random and /dev/urandom on Linux and FreeBSD
- Microsofts CryptGenRandom on Windows
- A high level interface for most of the above, using a filter/pipeline metaphor
- benchmarks and validation testing
- FIPS 140-2 Validated
Enhancements:
- This release added VMAC and Sosemanuk, and improved the speed of several other algorithms using x86/x86-64/MMX/SSE2 assembly.
- Random number generators and DSA-like signature algorithms were modified to reduce the risk of reusing random numbers and IVs after virtual machine state rollback.

The Legion of the Bouncy Castle Java Cryptography API provides a lightweight cryptography API in Java. A provider for the JCE and JCA, a clean-room implementation of the JCE 1.2.1, generators for Version 1 and Version 3 X.509 certificates, generators for Version 2 X.509 attribute certificates, PKCS12 support, and APIs for dealing with S/MIME, CMS, OCSP, TSP, and OpenPGP. Versions are provided for the J2ME, and JDK 1.0-1.5.
Main features:
- A lightweight cryptography API in Java.
- A provider for the JCE and JCA.
- A clean room implementation of the JCE 1.2.1.
- A library for reading and writing encoded ASN.1 objects.
- Generators for Version 1 and Version 3 X.509 certificates, Version 2 CRLs, and PKCS12 files.
- Generators for Version 2 X.509 attribute certificates.
- Generators/Processors for S/MIME and CMS (PKCS7).
- Generators/Processors for OCSP (RFC 2560).
- Generators/Processors for TSP (RFC 3161).
- Generators/Processors for OpenPGP (RFC 2440).
- A signed jar version suitable for JDK 1.4/1.5 and the Sun JCE.

TaoCrypt project is a portable, fast, cryptographic library for most needs.
Main features:
- one way hash functions: SHA-1, MD2, MD4, MD5, RIPEMD-160;
- message authentication codes: HMAC;
- block ciphers: DES, Triple-DES, AES, Blowfish, Twofish;
- stream ciphers: ARC4;
- public key cryptography: RSA, DSA, Diffie-Hellman;
- password based key derivation: PBKDF2 from PKCS #5;
- a pseudo random number generator and large integer support.
There is also support for Base 16/64 encoding/decoding, DER encoding/decoding, and X.509 processing.
To build:
./configure
make
To test the build, from the ./test directory run ./test
Enhancements:
- This release includes bugfixes, portability enhancements, and some optimizations.

Monitoring API project is a multi-user programming interface designed to simplify the development of network monitoring software and allows users to express their monitoring needs in a device-independent way.
The main abstraction provided by MAPI is the network flow. Although flows have been used before in network monitoring systems, MAPI gives flows a first-class status. Applications that uses MAPI can specify what flows or flow statistics they are interested in by applying functions to flows.
A MAPI function can be a BPF filter, string search, packet counter or more advanced like a NetFlow generator. These function will automatically run in hardware if there is support for it on the hardware being used.
MAPI currently supports the following hardware:
- Normal NICs through libpcap
- DAG cards without co-processor
- SCAMPI adapter
Enhancements:
- This release includes support for distributed monitoring, several new MAPI functions, demo applications, and a lot of bugfixes.

LibTomCrypt is a comprehensive, modular, and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo- random number generators, public key cryptography, and a plethora of other routines. It has been designed from the ground up to be very simple to use. It has a modular and standard API that allows new ciphers, hashes, and PRNGs to be added or removed without change to the overall end application. It features functions for easy handling and a complete user manual which has many source snippet examples.
LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.
LibTomCrypt has been designed from the ground up to be very simple to use. It has a modular and standard API that allows new ciphers, hashes and PRNGs to be added or removed without change to the overall end application. It features easy to use functions and a complete user manual which has many source snippet examples.
LibTomCrypt is free for all purposes under the public domain. This includes commercial use, redistribution and even branching.
Main features:
- Public domain and open source.
- Written entirely in portable ISO C source (except for things like RNGs for natural reasons)
- Builds out of the box on virtually every box. All that is required is GCC for the source to build.
- Includes a 90+ page user manual in PDF format (with working examples in it)
- Block Ciphers
- Ciphers come with an ECB encrypt/decrypt, setkey and self-test interfaces.
- All ciphers have the same prototype which facilitates using multiple ciphers at runtime.
- Some of the ciphers are flexible in terms of code size and memory usage.
- Ciphers Supported.
- Blowfish
- XTEA
- RC5
- RC6
- SAFER+
- Rijndael (aka AES)
- Twofish
- SAFER (K64, SK64, K128, SK128)
- RC2
- DES, 3DES
- CAST5
- Noekeon
- Skipjack
- Anubis (with optional tweak as proposed by the developers)
- Khazad
- Changing Modes
- Modes come with a start, encrypt/decrypt and set/get IV interfaces.
- Mode supported.
- ECB
- CBC
- OFB
- CFB
- CTR
- One-Way Hash Functions
- Hashes come with init, process, done and self-test interfaces.
- All hashes use the same prototypes for the interfaces.
- Hashes supported.
- MD2
- MD4
- MD5
- SHA-1
- SHA-224/256/384/512
- TIGER-192
- RIPE-MD 128/160
- WHIRLPOOL
- Message Authentication
- FIPS-198 HMAC (supports all hashes)
- FIPS pending OMAC1 (supports all ciphers)
- PMAC Authentication
- Message Encrypt+Authenticate Modes
- EAX Mode
- OCB Mode
- Pseudo-Random Number Generators
- Yarrow (based algorithm)
- RC4
- Support for /dev/random, /dev/urandom and the Win32 CSP RNG
- Fortuna
- SOBER-128
- Public Key Algorithms
- RSA (using PKCS #1 v2.1 and PKCS #1 v1.5)
- DH (using ElGamal signatures and simple DH encryption)
- ECC (over Z/pZ, ElGamal Signatures, simple DH style encryption)
- DSA (Users make their own groups)
- Other standards
- PKCS #1 (both v1.5 and v2.0 padding)
- PKCS #5
- ASN.1 DER for INTEGER types.
Enhancements:
- The ECC code was fixed, cleaned, and improved.
- GCM was fixed.
- UTF8 support was added to the ASN1 code.
- The documentation was improved.
- The published version of the manual is included.

Clickatell SMS API provides a tool for sending SMS messages using the Clickatell gateway.
It provides support to authenticate to this service and query for the current account balance.
This class use the fopen or CURL module to communicate with the gateway via HTTP/S.
Enhancements:
- Fixed bug in function encode_message (tnx Neil)

GROU.PS Web is a general purpose PHP API, created for use in Web 2.0 sites. It includes frequently used design patterns of well known web 2.0 sites. For a correct definiton of Web 2.0, you may want to check http://en.wikipedia.org/wiki/Web_2.0

Our API currently has 2 classes:

1) TagCloud?.class.php

Feed the class with your own data, and create Web 2.0 style tag clouds

2) Utility.class.php

General purpose functions. For instance getStyledDateDiff gives nicely formatted date differences that are in use in digg.com and grou.ps

The APIs are not complete yet. We are open to any ideas, wished coming from you.

Usage:

Tag Cloud Example
< ?php
require_once(/path/to/TagCloud.class.php);

$tc = new TagCloud();

$tc->setMinFontSize(8);
$tc->setMaxFontSize(20);

$tc->setDistributionType(TC_RANDOM_DISTRIBUTION);

$tc->setDataClass(tags);

$tc->addData(love,10);
$tc->addData(sex,20);
$tc->addData(food,5);
$tc->addData(business,1);
$tc->addData(PHP,2);

$res = $tc->generate();

echo $res;
? >

Utility Example:

< ?php

require_once(/path/to/Utility.class.php);

$start_date = "September 21, 1999";
$end_date = "yesterday";

$u = new Utility();

$datediff = $u->getStyledDateDiff($start_date,$end_date);

$birthday = "11 January 1978";

$zodiacsign = $u->getZodiacSign($birthday);

echo $datediff;
echo "
";
echo $zodiacsign;

? >