encrypt-decrypt-pythons 2.0.0

encrypt files with aes-256-gcm or chacha20-poly1305

crypto tool v2

encrypt files with aes-256-gcm or chacha20-poly1305. also does multi-layer.

wat it does

• AES-256-GCM — nist aproved, fast on most cpus
• ChaCha20-Poly1305 — good for mobiles and no aes-ni
• Multi-Layer — multiple layers, each layer uses a diffrent key
• PBKDF2 or Argon2id for key derivashun
• RSA key gen and stuff (asymmetric)
• HMAC integrety check on top

output

encrypted files are pure binary. no metadata, no json, no readable text. just bytes: 43 52 59 32 01 00 01 00 ...

instal

pip install cryptography argon2-cffi

usage

command line

# enc
python professional_crypto.py -e myfile.txt -o myfile.enc

# dec
python professional_crypto.py -d myfile.enc -o myfile_decrypted.txt

# use chacha20
python professional_crypto.py -e myfile.txt -a chacha20

# multi-layer (3 layers)
python professional_crypto.py -e myfile.txt -a multi-layer -l 3

# disable argon2 (use pbkdf2)
python professional_crypto.py -e myfile.txt --no-argon2

python api

from professional_crypto import Cryp

c = Cryp()

# enc
c.encrypt('myfile.txt', 'myfile.enc', 'password123',
          algo='aes-gcm', layers=1, use_argon=True)

# dec
c.decrypt('myfile.enc', 'myfile_decrypted.txt', 'password123')

# rsa
priv, pub = c.gen_rsa(4096)
c.save_rsa(priv, pub, 'keypassword', 'priv.pem', 'pub.pem')
p = c.load_priv('priv.pem', 'keypassword')

notes

• password is asked twise for enc, once for dec (obviusly)
• encrypted files are not backwards compatable (new format)
• multi-layer uses more ram and time
• use a strong password (12+ chars)

license

MIT