# letsencrypt.sh
-letsencrypt client implemented as a shell-script
+This is a client for signing certificates with an ACME-server (currently only provided by letsencrypt) implemented as a relatively simple shell-script.
+
+It uses the `openssl` utility for everything related to actually handling keys and certificates, so you need to have that installed.
+
+Other dependencies are (for now): curl, sed
+
+Perl no longer is a dependency.
+The only remaining perl code in this repository is the script you can use to convert your existing keyfile into something openssl (and this script) can read.
+
+Current features:
+- Signing of a list of domains
+- Renewal if a certificate is about to expire
+
+Please keep in mind that this software and even the acme-protocol are relatively young and may still have some unresolved issues.
+Feel free to report any issues you find with this script or contribute by submitting a pullrequest.