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Explaining RSA PKCS#1.5, RSA OAEP or RSA PSS

Explaining RSA PKCS#1.5, RSA OAEP or RSA PSS

Let me start. RSA can be used to encrypt or sign.
Go to the profile of Prof Bill Buchanan OBE FRSE
Prof Bill Buchanan OBE FRSE
Promising Cryptography: JavaScript Promises in Encryption

Promising Cryptography: JavaScript Promises in Encryption

I remember, in the past, it often happened that Microsoft Windows took longer to boot up with each new version — as it had to check more…
Go to the profile of Prof Bill Buchanan OBE FRSE
Prof Bill Buchanan OBE FRSE
Creating Ed25519 Signing Keys: Random or from a Passphrase

Creating Ed25519 Signing Keys: Random or from a Passphrase

While Bitcoin and Ethereum use the secp256k1 curve and the ECDSA signature, there is a much better signature method. This is EdDSA, and…
Go to the profile of Prof Bill Buchanan OBE FRSE
Prof Bill Buchanan OBE FRSE
Authenticated Encryption with Box and JavaScript

Authenticated Encryption with Box and JavaScript

We — as a cybersecurity industry — have possibly let down citizens. Why? Well, we still send unauthenticated messages to each other, and…
Go to the profile of Prof Bill Buchanan OBE FRSE
Prof Bill Buchanan OBE FRSE
Boxing with JavaScript

Boxing with JavaScript

The Box encryption method works in a similar way to PGP email, and where Bob generates a symmetric key and uses a symmetric key encryption…
Go to the profile of Prof Bill Buchanan OBE FRSE
Prof Bill Buchanan OBE FRSE
Happy 16th Birthday to Bitcoin

Happy 16th Birthday to Bitcoin

On 3 January 2009, something special happened — it was the first Bitcoin to be mined:
Go to the profile of Prof Bill Buchanan OBE FRSE
Prof Bill Buchanan OBE FRSE
Gotta Love (and Hate) JavaScript: Proxy Re-encryption

Gotta Love (and Hate) JavaScript: Proxy Re-encryption

Well, JavaScript is a nightmare to use!
Go to the profile of Prof Bill Buchanan OBE FRSE
Prof Bill Buchanan OBE FRSE
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