An Overview of Cryptography
garykessler.net
An Overview of Cryptography
1–10 of 34 posts
Re: An Overview of Cryptography
#2This is such an awesome paper, thanks for posting it!
Re: An Overview of Cryptography
#3Great paper! Given the write-ups of old and broken crypto, perhaps a better title would be History of Cryptography?
Re: An Overview of Cryptography
#4Very interesting paper indeed.
Could be more appealing if the vanilla html was properly styled though.
Re: An Overview of Cryptography
#5Great paper! Given the write-ups of old and broken crypto, perhaps a better title would be History of Cryptography?
Indeed. Interesting mix of theory ("here's how RSA works and why") and practice (list of specs and RFCs), but very old-school.
Today, I'd expect less focus on RSA and PGP, and instead a mention of elliptic curves, the Signal protocol (double ratchet), etc.
Re: An Overview of Cryptography
#6"This scheme also provides nonrepudiation since it proves that Alice sent the message; if the hash value recovered by Bob using Alice's public key proves that the message has not been altered, then only Alice could have created the digital signature."
This is a common misconception.
Just because a signature verifies under Alice's public key, it does not necessarily imply Alice generated the signature. For many common signature schemes, if Bob makes a signature using their public/private key, Alice can produce a different private/public key such that Bob's signature will verify under Alice's key.
Paper (we) wrote on the impacts of this: https://eprint.iacr.org/2019/779
Re: An Overview of Cryptography
#7"This scheme also provides nonrepudiation since it proves that Alice sent the message; if the hash value recovered by Bob using Alice's public key proves that the message has not been altered, then only Alice could have created the digital signature." This is a common misconception. Just because a signature verifies under Alice's public key, it does not necessarily imply Alice generated the signature. For many common…
In particular, see also this 2005 paper by Thomas Pornin: http://www.bolet.org/~pornin/2005-acns-pornin+stern.pdf
EDIT: Looks like this paper is also already included in the list of citations for the 2019 paper :)
Re: An Overview of Cryptography
#8Great paper! Given the write-ups of old and broken crypto, perhaps a better title would be History of Cryptography?
It does say at the top "originally written in 1998" and it was basically amended over time, but regardless I still love learning about "historical" views.
Example: A textbook from '95 had a pretty large section on "the future" of ECC and "current" trends in research. It was interesting seeing what came true, or what was still being worked on.
Re: An Overview of Cryptography
#9Very interesting paper indeed. Could be more appealing if the vanilla html was properly styled though.
I find it fairly decent, far better than the usual academic pdf anyway if that's the standard most accept.
How would you improve the page?
Re: An Overview of Cryptography
#10I strongly recommend “The Code Book” by Simon Singh. Really readable and very informative!