# 2021-05-21 | A small update about rizin
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  So many changes has been done by my friends and me in the past months,
  but here i will focus on the changes i did:

  - All the java plugins (assembler, disassembler, class parser and core plugin) has
    been rewritten, including tests to validate decoders and encoders.
  - The AVR assembler and disassembler has also been rewritten (with tests).
  - The MD4 and SHA1 code has been rewritten, because they were GPL.
  - rz-hash and all the digest methods and code has been rewritten or heavily refactored
    to clean and remove quirks and hacks; moreover all the algorithms now are stateful,
    which allows to be used with big files and therefore doesn't require to allocate the
    whole file in memory.



  $ rz-hash -L
  flags  algorithm      license    author
  ____hm md4            LGPL3      deroad
  ____hm md5            RSA-MD     RSA Data Security, Inc.
  ____hm sha1           LGPL3      deroad
  ____hm sha256         BSD-3      Aaron D. Gifford
  ____hm sha384         BSD-3      Aaron D. Gifford
  ____hm sha512         BSD-3      Aaron D. Gifford
  ____h_ fletcher8      LGPL3      deroad
  ____h_ fletcher16     LGPL3      deroad
  ____h_ fletcher32     LGPL3      deroad
  ____h_ fletcher64     LGPL3      deroad
  ____h_ adler32        LGPL3      deroad
  ____h_ crc8smbus      LGPL3      deroad
  ____h_ crc8cdma2000   LGPL3      deroad
  ____h_ crc8darc       LGPL3      deroad
  ____h_ crc8dvbs2      LGPL3      deroad
  ____h_ crc8ebu        LGPL3      deroad
  ____h_ crc8icode      LGPL3      deroad
  ____h_ crc8itu        LGPL3      deroad
  [ ... more crc algos ... ]
  ____h_ crc64we        LGPL3      deroad
  ____h_ crc64xz        LGPL3      deroad
  ____h_ crc64iso       LGPL3      deroad
  ____h_ xor8           LGPL3      deroad
  ____h_ xor16          LGPL3      deroad
  ____h_ xxhash32       LGPL3      deroad
  ____h_ parity         LGPL3      deroad
  ____h_ entropy        LGPL3      deroad
  ____h_ entropy_fract  LGPL3      deroad
  ED____ aes-ecb        MS-PL      Karl Malbrain
  ED____ aes-cbc        LGPL-3     rakholiyajenish.07
  __ed__ base64         LGPL-3     rakholiyajenish.07
  __ed__ base91         LGPL-3     rakholiyajenish.07
  ED____ blowfish       LGPL3      kishorbhat
  ED____ cps2           LGPL-3     pancake,esanfelix,pof
  ED____ des-ecb        LGPL-3     deroad
  __ed__ punycode       LGPL-3     pancake
  ED____ rc2            LGPL-3     lionaneesh
  ED____ rc4            LGPL-3     pancake
  ED____ rc6            LGPL-3     rakholiyajenish.07
  E_____ rol            LGPL-3     pancake
  _D____ ror            LGPL-3     pancake
  ED____ rot            LGPL-3     pancake
  ED____ serpent-ecb    LGPL-3     NicsTr
  ED____ xor            LGPL-3     pancake
  
  flags legenda:
      E = encryption, D = decryption
      e = encoding, d = encoding
      h = hash, m = hmac




  - Recently i have introduced the Ratcliff Obershelp Pattern Recognition algorithm in
    rizin, to remove the dependency of the diff utility and allow diffing any type of
    data; also rz-diff has been rewritten.
  - Currently there is an open push request that allows diffing 2 files interactively at
    byte level.



  All the rewritten code has been released within rizin under LGPL-3

  What is next? more refactoring; there are huge piece of code that really need to be
  rewritten to make all the utilities stable and working correctly.

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# References:
  Rizin
  https://github.com/rizinorg/rizin