# Codecrypt
The post-quantum cryptography tool

## Why this?

Go read http://pqcrypto.org/

## Quick How-To

Codecrypt uses hash-based signatures (FMTSeq) and McEliece code-based
encryption (McE-quasidyadic).

Everything is meant to work mostly like GnuPG, but with some good simplicity margin. Let's play with random data!

	ccr -g help
	ccr -g fmtseq128 --name "John Doe"    # your signature key
	ccr -g mceqd128 --name "John Doe"     # your encryption key

	ccr -K  #watch the generated keys
	ccr -k

	ccr -p -a -o my_pubkeys.asc    # and send pubkeys to friends

	#see what people sent us
	ccr -ina < friends_pubkeys.asc

	#import Frank's key and rename it
	ccr -i -R friends_pubkeys.asc --name "Friendly Frank"

	#send a nice message to Frank (you can also specify him by @12345 keyid)
	ccr -se -r Frank < Document.doc > Message_to_frank.ccr

	#receive a reply
	ccr -dv -o Decrypted_verified_reply.doc <Reply_from_frank.ccr

	#rename other's keys
	ccr -m Frank -N "Unfriendly Frank"

	#and delete pukeys of everyone who's Unfriendly
	ccr -x Unfri

## Option reference

For completeness I add listing of all options here (also available at ccr --help)

	Copyright (C) 2013 Mirek Kratochvil <exa.exa@gmail.com>
	This is free software; see the source for copying conditions.  There is NO
	warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	Usage: ./ccr [options]

	Common options:
	 -h, --help     display this help
	 -V, --version  display version information
	 -T, --test     perform (probably nonexistent) testing/debugging stuff

	Global options:
	 -R, --in      input file, default is stdin
	 -o, --out     output file, default is stdout
	 -a, --armor   use ascii-armored I/O
	 -y, --yes     assume that answer is `yes' everytime

	Actions:
	 -s, --sign     sign a message
	 -v, --verify   verify a signed message
	 -e, --encrypt  encrypt a message
	 -d, --decrypt  decrypt an encrypted message

	Action options:
	 -r, --recipient    encrypt for given user
	 -u, --user         use specified secret key
	 -C, --clearsign    work with cleartext signatures
	 -b, --detach-sign  specify file with detached signature

	Key management:
	 -g, --gen-key        generate specified keypair, `help' lists algorithms
	 -k, --list           list matching keys
	 -K, --list-secret
	 -i, --import         import keys (optionally rename them)
	 -I, --import-secret
	 -p, --export         export matching keys
	 -P, --export-secret
	 -x, --delete         delete matching keys
	 -X, --delete-secret
	 -m, --rename         rename matching keys
	 -M, --rename-secret

	Key management options:
	 -n, --no-action    on import, only show what would be imported
	 -N, --name         specify a new name for renaming or importing
	 -F, --filter       only work with keys with matching names
	 -f, --fingerprint  format key IDs nicely for human eyes

## Disclaimer

Codecrypt eats data. Use it with caution.

Author is a self-taught cryptographer.