X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=README;h=b8f814aee8a16b77cc825a82eba2e96a718d26f2;hb=10fd1044fc86d4537fdc6b05320f5a3d3996727d;hp=486307ef2d19eff9762b14da4baffbf90f6e5ab8;hpb=f402e6aa2dd18138ec26e9bfb340dae294637aec;p=tfcrypt.git diff --git a/README b/README index 486307e..b8f814a 100644 --- a/README +++ b/README @@ -10,19 +10,19 @@ Blowfish and Twofish ciphers, which are in use still up to today. tfcrypt is actually a frontend for Threefish with (by default) XTS mode of operation. As a key it uses either password or keyfile, which is then hashed many times -with Skein hash function. Default key length is 1280 bits (160 bytes). +with Skein hash function. This program is incompatible with older, "tf1024" tfcrypt version. This version aims to provide a portable encryption tool to encrypt fixed media such as disks and archive files, -as well as to provide decades long privacy for encrypted data. That's why it uses 1024 bit -encryption and, unlike older version, virtually extends key size to 1280 bits by -removing tweak feature from Threefish and uses either XTS (by default) or OCB modes of -operation instead, to encrypt fixed media in a secure undetectable way. - +as well as to provide decades long privacy for encrypted data. Supported modes of operation: CTR, ECB, CBC, XTS, OCB and arbitrary long keystream. OCB mode does not use Skein hash function to hash and verify message, instead, it does a single pass crypt and verify, thus, it is faster than other modes when both crypt and verify. +Additionally, this version provides a way to virtually "extend" key size to 1280 bits, +by enabling "fullkey" option or changing "do_full_key" default setting in tfcrypt_defs.h. +In this mode, tweak is ignored, and filled with extended key material. + THREEFISH NOTES Please note that this encryption software includes Threefish cipher, which is terribly @@ -54,7 +54,7 @@ LICENSE This tfcrypt, unlike it's previous version, is copyrighted: - Copyright (C) Andrey Rys , 2012-2018. + Copyright (C) Andrey Rys , 2012-2019. It maybe freely used by anyone who agrees to the terms and conditions of the MIT license.