Commit b77cf8d8 authored by Jakob Moser's avatar Jakob Moser
Browse files

Add mutual signatures

parent 4474ca33
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@@ -24,3 +24,12 @@ An S/MIME certificate has both a serial number (arbitrarily assigned by the issu
```bash
gpg --show-keys --with-fingerprint fs-coli@cl.uni-heidelberg.de.pgp.pub.asc 
```

## Mutual signatures

You trust one key (S/MIME or OpenPGP), but not the other? For this case, we have mutually signed each key with the other one. The directory `Signatures` contains the following two files:

* The S/MIME key signed with the OpenPGP key: [`Signatures/fs-coli@cl.uni-heidelberg.de.smime.pub.pem.sig`](Signatures/fs-coli@cl.uni-heidelberg.de.smime.pub.pem.sig)
* The OpenPGP key signed with the S/MIME key: [`Signatures/fs-coli@cl.uni-heidelberg.de.pgp.pub.asc.sig`](Signatures/fs-coli@cl.uni-heidelberg.de.pgp.pub.asc.sig)

By verifying the signature made with the key you already trust, you can verify that you can also trust the other key.
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MIME-Version: 1.0
Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg="sha-256"; boundary="----7114FE60DBBFA0477D3F7E749D204BAF"

This is an S/MIME signed message

------7114FE60DBBFA0477D3F7E749D204BAF
-----BEGIN PGP PUBLIC KEY BLOCK-----

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=9b2a
-----END PGP PUBLIC KEY BLOCK-----

------7114FE60DBBFA0477D3F7E749D204BAF
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"

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------7114FE60DBBFA0477D3F7E749D204BAF--
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Issuer ...: /CN=GEANT Personal CA 4/O=GEANT Vereniging/C=NL
Serial ...: 076407AE88FD1AD97435B13A03EB04B0
Subject ..: /O=Universitaet Heidelberg/ST=Baden-Wuerttemberg/C=DE/EMail=fs-coli@cl.uni-heidelberg.de/2.5.4.97=GOVDE+BW
    aka ..: fs-coli@cl.uni-heidelberg.de
Keygrip ..: 8CC6C7ED16AF341184BA3B87DC74062A924E1E20

- -----BEGIN CERTIFICATE-----
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- -----END CERTIFICATE-----
-----BEGIN PGP SIGNATURE-----

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=Dat8
-----END PGP SIGNATURE-----