Secure Hash Algorithms

And you also will need to compute checksums, which algorithm, which one you want.

This is MD5, SHA, different versions.

So we support all of them.

So that was the second part that the tool does.

You mentioned verifying the digital math.

Let's talk about the specific mechanism that makes Rule nine oh two fourteen actually work, the cryptographic hash, specifically algorithms like SHA-two fifty-six.

A hash value operates as a digital fingerprint for a file.

You run a digital file, say an Excel spreadsheet, through the SHA-two fifty-six mathematical algorithm.

It crunches the data and outputs a unique string of two hundred and fifty-six characters.

And the math is so sensitive that if you change a single pixel in an image or if you add a single comma to a five-hundred-page text document and run it through the algorithm again, the resulting two hundred and fifty-six-character string changes completely.

Toll booth three: How do we authenticate it? We can't just print it out.

We look for Rule nine zero one circumstantial links, metadata showing it came from the CEO's specific IP address, internal company jargon, reply patterns from other executives, or we take the shortcut.

Okay.

AES-256, SHA-384, and so on, which are the baselines, are fine.

There's another algorithm there called Grover's, which is an attack against symmetric algorithms.

And it essentially cuts the number of bits in the key in half.

So if you have an AES-256 in a quantum world, that's the same as AES-128, which is fine.

So you must use AES-256 and SHA-384 as the minimum as well.

They're kind of okay.

They're fine.