libtomcrypt-1.17下载

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. Sports the following 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 180+ 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 KASUMI SEED Chaining Modes Modes come with a start, encrypt/decrypt and set/get IV interfaces. Mode supported. ECB CBC OFB CFB CTR IEEE LRW mode F8 Chaining Mode 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 128/160/256/320 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) With fast Fixed Point ECC support as well 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 for SEQUENCE, INTEGER, BIT STRING, OCTET STRING, OBJECT IDENTIFIER, IA5 STRING, PRINTABLE STRING, UTCTIME, CHOICE and NULL types. Portable code builds out of the box with a conforming C compiler Builds out of the box with platform optimizations for i386 (x86_32, gcc and msvc), x86_64 and PPC32 LibTomCrypt builds out of the box with GCC 2.95 and up as well as Visual C++ v6.00 with SP5. It can be reconfigured to eliminate algorithms, use different build options (e.g. smaller or faster code) or use different build tools. It has been successfully tested on numerous platforms ranging from the x86 (Intel and AMD), ARM7TDMI, PowerPC and MIPS series of processors. The code is all endian neutral and uses only standard C syntax