1cryptcat = netcat + encryption 2 3Cryptcat is the standard netcat enhanced with twofish encryption. 4 5Twofish is courtesy of counterpane, and cryptix. We started with the 6Java version of twofish from cryptix, converted it to C++ (don't ask why), 7and enhanced it by adding CBC mode and the ciphertext stealing technique 8from Applied Cryptography (pg. 196) 9 10How do you use it? 11 12 Machine A: cryptcat -l -p 1234 < testfile 13 Machine B: cryptcat <machine A IP> 1234 14 15This is identical to the normal netcat options for doing exactly the 16same thing. However, in this case the data transferred is encrypted. 17 18Known issues: 19It is known that linux will throw errors like: 20/tmp/ccF9UdJx.o(.text+0x6d0): In function `getportpoop': : 21warning: Using 'getservbyname' in statically linked applications 22requires at runtime the shared libraries from the glibc version 23used for linking /tmp/ccF9UdJx.o(.text+0x61f): In function 24getportpoop': : warning: Using 'getservbyport' in statically 25linked applications requires at runtime the shared libraries from 26the glibc version used for linking 27 28This is due to using -static which either Hobbit or someone else 29insists in the Makefile is The Right Thing(tm). The compiled code 30still seems to run without an issue and according to ldd it is a 31static binary. 32 33 34Changes -- been putting these in Changelog file... 35 36Since release alot of people have been submitting changes (many times 37for the same thing). I've been doing my best to keep up, we are trying 38to get this up on sourceforge, but there seems to be some sort of 39"approval" process that makes it unclear if that will actually happen. 40 41So, if you have submitted something, and its not here, let me know. If you've 42submitted a change, and its here with someone else's name, that just means 43someone else got the same change in before you. 44 45If you have a change, let me know what name if any to include with 46the change. 47