iavl
applied_crypto_2021_fall
| iavl | applied_crypto_2021_fall | |
|---|---|---|
| 1 | 4 | |
| 407 | 39 | |
| 0.7% | - | |
| 8.2 | 1.8 | |
| 4 days ago | over 2 years ago | |
| Go | Python | |
| Apache License 2.0 | - |
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iavl
applied_crypto_2021_fall
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Show HN: SHA-256 explained step-by-step visually
Applied Cryptography (CS-GY 6903) at NYU Tandon. You can find all our programming problem sets in the same repo: https://github.com/oconnor663/applied_crypto_2021_fall.
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Hashing Is Not Encryption
(shameless plug) If you want to start by doing your own implementation of SHA-256, you can take a look at one of my assignments :) https://github.com/oconnor663/applied_crypto_2021_fall/tree/...
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The Pinouts Book
> IIRC SHA256 outputs the full state so some types of length extension attack are still possible (though massively less _practical_ than against MD5)
I'm not aware of any differences between the length extension attack on MD5 vs the one on SHA-256. As far as I know, it works the same way on both. Here's an assignment I did on the SHA-256 version if you want a deep dive: https://github.com/oconnor663/applied_crypto_2021_fall/tree/...
It's possible you're thinking about finding collisions? It's true that this is much easier for MD5 than for SHA-256.
What are some alternatives?
hashcat - World's fastest and most advanced password recovery utility
tendermint - ⟁ Tendermint Core (BFT Consensus) in Go
sha256-animation - Animation of the SHA-256 hash function in your terminal.
lnd - Lightning Network Daemon ⚡️
image-stego - 🏞 Steganography-based image integrity - Merkle tree nodes embedded into image chunks so that each chunk's integrity can be verified on its own.