This is a follow up of my previous post about parsing and generating OpenSSH keys in Common Lisp.

Native support for bcrypt password hashes was somewhat missing in the Common Lisp ecosystem, unless you count the various CFFI wrappers.

Support for ECDSA private and public keys in ironclad has been implemented.

In previous posts I’ve discussed how you can decode and encode data in RFC 4251 binary format using Common Lisp.

Public key fingerprint represents the identity of a public key, which you get after applying a hashing function to the binary blob that makes up a public key.

I have been messing around recently with the binary format used for OpenSSH private keys, and got a bit confused about the format when I had to decode the various parts of it.

In a previous post I’ve discussed how to decode RFC 4251 binary data in Common Lisp. In this one we are going to see how to encode data in RFC 4251 compliant format.

RFC 4251 describes the Secure Shell (SSH) Protocol Architecture, which also contains a section of the various Data Type Representations Used in the SSH Protocols.

This is a follow up of a recent post about exploring COVID-19 data with Common Lisp.

Considering the current COVID-19 pandemic and the lockdown period in my country, which lasted for a few months, I’ve been thinking about spending some time exploring the data about the virus spread.