It's been 3 weeks that I started developing WarShield, a file encryption CLI. So I wanted to tell you everything important I know today about crypt...
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Your last paragraph on Authenticity sounds wrong and misleading. You're putting everything in the same bag. It would have been better to explain what HMAC is instead of comparing it to md5 which is a hashing function and provides absolutely no authenticity, only integrity.
Rework finished, hope that you will enjoy it!
You're right, I somehow poorly formulated the paragraph, it need a rework :)
Excellent write up!
So now I'm curious about something. Did you happen to come across the proposed RSA alternatives for asymmetrical key pairs that use things like EC25519 in order to move away from NSA created standards? If so, what was your take?
ECC curves are far from what I know at this time.. If your question was about how to don't use NSA standards (like AES), I would use something like 3DES, former competitor of AES before AES was declared as the US government's standard.
Thanks for sharing! Informative😀
I've always wondered about the IV. Since it's random, you probably store it along with your encrypted data (but as an unencrypted value). Am I right? Is it the same thing as a "salt"?
It's literally the same thing as a salt, it's mixed with the key like you mix some cheeses to make a fondue
Just a small point, but encryption and ciphers are two different things. A cipher consists of nothing more than a character (or byte) map from one alphabet to another.
Beyond that, nice work!
I'll note that! I'm not an english native. In french, the word "crypting" doesn't really have the purpose of transforming a text to a ciphertext, there's a website dedicated to this word because of bad uses.
Thanks you for tell me that, I'll not make this error anymore!
(post fixed)
Thanks for sharing your learnings, keep up the great work
Thanks, the community helps me alot to improve myself! Hope that people like my posts as I like to make them!
I describe What is Cryptography in an easy way
I would like to to use case examples with scripts #showusthescripts!
It's hard to show proper code of how cryptography works. You can't show code in an essay because your readers could not understand the programming language you use.
It's more like an explication than a demonstration.
I understand Im just a snippet snob I guess lol
"This technique is basically a way to mix your key with another value, best being a random value."
Is this what you call a salt ??
It's theoricaly the same thing as a salt, a salt is mostly used in hashing, where it will be append to the original value then hashed. An IV is XORed with a value (here a key)