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.
* Block Ciphers
* 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
* KASUMI
* SEED
* Chaining Modes
* ECB
* CBC
* OFB
* CFB
* CTR
* IEEE LRW mode
* F8 Chaining Mode
* One-Way Hash Functions
* MD2
* MD4
* MD5
* SHA-1
* SHA-224/256/384/512
* TIGER-192
* RIPE-MD 128/160/256/320
* WHIRLPOOL
* Message Authentication
* FIPS-198 HMAC (supports all hashes)
* CMAC, also known as OMAC1 (supports all ciphers)
* PMAC Authentication
* F9-MAC
* Pelican MAC
* Message Encrypt+Authenticate Modes
* EAX Mode
* OCB Mode
* CCM Mode (NIST spec)
* GCM Mode (IEEE spec)
* 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 v1.5 and v2.1)
* ECC (EC-DSA X9.62 signatures, X9.63 EC-DH)
o With fast Fixed Point ECC support as well
o X9.63 import/export of public keys
* DSA (Users make their own groups)
* The math routines are pluggable which means you can use your own
math provider if you want.
* Other standards
* PKCS #1 (v1.5 and v2.1 padding)
* PKCS #5
* ASN.1 DER
