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Calomel - Open Source Research and Reference

About Us

Calomel.org is a privately held domain dedicated to documenting open source configurations and adding insight about their uses. We try to convey the subject matter in easy to read articles while still providing details about the syntax.

We designed our web site using an adaptive css layout by scaling the page keyed on the browser window width. By varying the width of the client browser window, objects on the page are dynamically resized convening the site to look the same on every platform, at any font size and any resolution. The text is dark gray on a clean white background and the icons at the bottom of the page are compressed base64 embedded images. The picture at the top of the page changes randomly every hour or so and is chosen from a collection of open source art. You are welcome to copy our site design if you wish. The structure uses industry standard HTML5 with CSS3 and easily passes Google's PageSpeed Insights design test.

Calomel.org Buy Me A Coffee

Thank you for your support. We offer this site and the knowledge contained therein for the sole purpose of sharing what we have learned with anyone who is interested. We all benefit from knowledge freely shared.

Calomel.org was conceived on September 20th of 2007 around 1900 UTC.

Contact Us by Email

If you are interested in contacting us by email, please run the following shell code and direct your email to the result. You may notice this script is a variation of Caesar's cipher which is also known as a shift cipher. The Caesar cipher is named after Julius Caesar, who, according to Suetonius, used encryption to protect messages of military significance. We have supplied both the encrypted message (echo statement) and the translation matrix (tr values) below.

echo 'rznvy gb: frfdhvcrqnyvnavfz@pnybzry.bet' | tr '1?a-z%#' ' .n-za-m:@'

Your email address will only be used to respond, if necessary, and then discarded. We value your privacy as much as our own.

RSS Feed

Calomel.org offers an RSS Feed to our readers to keep track of additions to the Calomel.org site. As modifications are made to the site we will post a small summery so you can be notified. Note that the RSS feed XML file is hosted through https only. If your RSS reader does not support a modern TLS cipher suite you will not be able to collect the RSS feed. We apologize for any inconvenience.

Site Security and Encryption Methodology

We have taken the position to negotiate with clients using only the strongest, most cryptographically robust Perfect Forward Secrecy (PFS) SSL ciphers available. Our entire site is an SSL only domain supporting only encrypted content. Even though all the pages on our site are openly public, we firmly believe your connection to our domain should not be hijacked, interfered with or manipulated in any way. Using a securely encrypted connection helps guarantee your privacy and the consistency of the data transmitted from our server to your client.

Calomel.org allows connections from clients who support the Perfect Forward Secrecy (PFS) key agreement (ECDHE) with ChaCha20, AES 256 bit or AES 128 bit symmetric encryption respecting client side cipher preference. Our site is encrypted and authenticated using TLS v1.3, a strong protocol and a strong key exchange with a strong cipher (CHACHA20_POLY1305, AES256, AES128). The certificates at calomel.org use Curve25519, which is an elliptic curve used in elliptic-curve cryptography (ECC) offering 128 bits of security (256-bit key size). Clients who do not meet these requirements fail the SSL negotiation and thus fail to negotiate the SSL phase of the connection. If you find you can not load our site with a certain program, please take some time to look into using a more modern client which supports a stricter security profile.

Our SSL certificate can be verified through the browser by clicking on the the "lock icon" in the URL bar. The site certificate is signed by our certificate authority, Let's Encrypt.

Legal and Licensing

You are free to copy, distribute and transmit the works on Calomel.org. If you copy or quote an article from Calomel.org please feel free to add a reference link back to the page you quote from. Reference links will help readers and search bots make their way back to our site which will help increase the site's visibility. All works at Calomel.org are ensconced with the common form MIT License.




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