What is seppl FOR LINUX?

seppl

seppl is a protocol and software that adds a new encryption layer for IPv4. It uses symmetric cryptography to secure all the traffic on a network. This implementation works with Linux netfilter/iptables, making it super handy.

Easy Encryption and Decryption

One of the cool things about seppl is that it introduces two new netfilter targets: CRYPT and DECRYPT. You can set up firewall rules to encrypt or decrypt incoming and outgoing traffic easily. No need for any extra daemons running in the background; it’s all straightforward!

Compatible with Linux Kernel

The seppl software taps into the encryption engine of the Linux Cryptographic API, available from kernel version 2.4.22 and above. It’s mainly aimed at encrypting wireless LANs (a solid fix for outdated WEP encryption) as well as local Ethernet networks, and can even handle larger VPN setups.

No Other Software Needed

The seppl protocol doesn’t work with any other software out there, but it's open and clearly defined. There’s no alternative implementation apart from this one.

Simpler than Other Options

If you compare it to CIPE, which is only good for point-to-point connections, or IPSEC/FreeSwan that can be quite tricky to set up, seppl shines as an easy-to-use peer-to-peer solution! It encrypts all outgoing traffic without messing with normal routing behavior.

Your Key Management Made Easy!

The setup includes three kernel modules: seppl.o (the key manager), ipt_CRYPT.o, and ipt_DECRYPT.o—both of which depend on seppl.o. To get started, you’ll load seppl.o first. You can manage keys through the file /proc/net/seppl_keyring.

Create Keys Effortlessly

You can use Python scripts like seppl-ls and seppl-gen-key. The first lets you see active keys while the second generates new ones right from /dev/urandom! For example, you could create keys named "linus" and "alan" with just a couple of commands:

seppl-gen-key -n linus -x > /proc/net/seppl_keyring

seppl-gen-key -n alan -x > /proc/net/seppl_keyring

Your Network Security Solution!

This makes your local subnet secure using seppl!. The default cipher used is AES-128 unless stated otherwise.

How Download Works

Go to the Softpas website, press the 'Downloads' button, and pick the app you want to download and install—easy and fast!