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# Fachschaft Computerlinguistik Public Keys

* Address: <fs-coli@cl.uni-heidelberg.de>

  * S/MIME: [`fs-coli@cl.uni-heidelberg.de.smime.pub.pem`](fs-coli@cl.uni-heidelberg.de.smime.pub.pem)

  * OpenPGP: [`fs-coli@cl.uni-heidelberg.de.pgp.pub.asc`](fs-coli@cl.uni-heidelberg.de.pgp.pub.asc)

## Get key data

To get information about the public keys (e.g. fingerprints), first, download the keys (or clone the repository). On a Linux system with all necessary tooling installed, you can then use one of the following commands:

### S/MIME

```bash

openssl x509 -in fs-coli@cl.uni-heidelberg.de.smime.pub.pem -text -fingerprint -noout

```

An S/MIME certificate has both a serial number (arbitrarily assigned by the issuer) and one or more fingerprints (automatically generated by one or more cryptographic hashing algorithms). Read more about the differences here:

* [What is the difference between serial number and thumbprint? - Information Security Stack Exchange](https://security.stackexchange.com/questions/35691/what-is-the-difference-between-serial-number-and-thumbprint)

* [What is the actual value of a certificate fingerprint? - Information Security Stack Exchange](https://security.stackexchange.com/questions/35691/what-is-the-difference-between-serial-number-and-thumbprint)

### OpenPGP

```bash

gpg --show-keys --with-fingerprint fs-coli@cl.uni-heidelberg.de.pgp.pub.asc 

```

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