User:Sandy Harris

 Where Sandy lives it is approximately: 00:25

I'm a baby-boomer Canadian currently teaching English and IT subjects in China. My academic qualifications are a BA in Psychology and a Certificate in Teaching English as a Second Language, both from Carleton U in Ottawa. I also did some work toward an M Phil in computational linguistics at U of Birmingham, UK, but did not complete that degree.

I am quite active on Wikitravel, where I'm an admin, and sometimes contribute to other wikis. See my Wikitravel user page: [1].

I've spent two substantial chunks of my career as a teacher — 1978-83 and 2002-date — mainly because that is a good way to support travel. At other times I've worked in computing, mostly as a technical writer but a bit of everything else too.

I wrote most of the documentation for the FreeS/WAN project, a Linux implementation of the IPsec encryption protocols. I have permission to re-use that text here User_talk:Sandy_Harris/Permission.

Approved Citizendium articles where I was the main writer:

• Cryptography
• Block cipher
• Brute force attack
• Kerckhoffs' Principle

I'm interested in computer security and cryptography. I think my latest papers ([2], [3]) on combining stream ciphers and block ciphers, are fairly interesting.

My Erdos number is five, via Carlisle Adams, Michael Weiner and Ron Rivest.