Category Archives: Cryptography

Shuffle Algorithm

Posted on March 20, 2008 by Stefan Siebel

This is excellent.

Update
and this is too!

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Posted in Cryptography, Programming | Leave a comment

PKCS#10 Zertifikatsantrag mit openssl

Posted on October 1, 2007 by Stefan Siebel

Um z.B. beim Rechenzentrum ein Serverzertifikat für einen Webserver beantragen zu können benötigt man einen PKCS#10 Zertifikatsantrag. Dieser kann mit openssl erstellt werden:

openssl req -newkey rsa:2048 -sha1 -keyout hqe_key.pem -out hqe.pem
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Posted in Apache, Cryptography, Linux, Security | Leave a comment

hexToByte – update

Posted on April 30, 2007 by Stefan Siebel

Benutzt man BouncyCastle als Security Provider in Java, kann man einfach diese Funktion verwenden.

org.bouncycastle.util.encoders.Hex.decode(hexStr)
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Posted in Cryptography, Java, Programming | Leave a comment

new gpg key

Posted on December 24, 2006 by Stefan Siebel

The old key for skarabaeus (at) project – sierra . de is not valid any more. Here is the new key:

Public Key
Fingerprint: D061 02B2 B71B 204D 5B1D A19B 84AE 0F81 1AC1 8639

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He knows Alice and Bobs shared secret

Posted on November 6, 2006 by Stefan Siebel

Bruce Schneier Facts

in Analogie zu: Chuck Norris Facts

Auch gut:
Bruce Schneier knows about the state of schroedinger’s cat.

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Posted in Cryptography, Fun, Security | Leave a comment