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• November 16, 2011
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Thank you for your interest! I appreciate any feedback and constructive criticism.

ComputerBildnis.com is currently in the start-up phase, it still is a privately held website. I do not offer advertisement space.

If you would like to establish contact with me, please read the information below. Unfortunately, a guaranteed answer cannot be given.

All of my emails are cryptographically signed, with PGP/MIME or a separate signature. Without exception, I never send an unsigned email. Signatures must be verified, with GnuPG GNU Privacy Guard, www.gnupg.org, MS-Windows version: www.gpg4win.org, for example. I only use the key with the listed data. ComputerBildnis.com, PeterJockisch.com and PeterJockisch.de are the only official sources for obtaining my key.

To view a name and a cryptographical checksum, is not sufficient. For the authentication, the signature must be verified. After the initial activation, modern email agents fully and automatically verify in the background.

Some recipients are not familiar with practical encryption and signing, or they have no possibility to use it in their country. In these cases, in addition to the signed email, I write the message seperately in a „.txt“ or „.pdf“ file and publicize its checksum (SHA-1 or GOST) in the blog section of PeterJockisch.de, combined with the date of dispatch, sending time and initials indicating the document.

For the qualified electronic signature, most often, only hardware-based (chip card) class-3-certificates, certifiied by legally recognized CAs, are accepted by law. However, the required hardware and software infrastructure (available card readers, supported operating system, email agent, software) is throughout of proprietary nature. This means not checkable and visible and thus, risky under security aspects. If attached to your email, I naturally will use such public X.509- or OpenPGP certificates with my MUA – However, I myself do not sign with such certificates

SSL/TLS certified site sections will follow.

Principally, on a business level, I do not communicate by telephone which is unsuitable for proof of identity. Telephone information is principally not given. I do not own a mobile phone and deny respective contracts or offers.

Due to telephony being unsuitable for proof of identity and the high risk of impersonation, I only conduct phone calls with immediate family using landline network only. I principally do not use mobile telephony, SMS and fax.

I neither have representatives nor employees. This will not change in the future.

I principally do not write reader's letters, and do not send any advertising emails, advertising letters, or newsletters. Current news and notifications can be obtained via RSS news tickers.

All websites recommended by me are exclusively listed on ComputerBildnis.com and PeterJockisch.de.

I solely publicize on websites whose domains I own. My webhoster is Hetz­ner On­line AG, http://www.hetzner.de/en. All my websites and content are being publicized exclusively via this webhoster. Exceptions to this are only the german checksums article in the encyclopedia Knol and my You­tube-Ka­nal.