r/crypto
Posts
A mnemonic system to (almost) effortlessly memorize 128-bit of entropy
Hi, I am working on a decentralized digital identity management system, and I would like to ask for a wider community feedback. In my opinion one of the biggest issues with decentralized identity management systems is the problem of the long lived private key loss or compromise. I am designing …
So this is my latest research pre-print, short digital signatures from the non-abelian hidden subgroup problem using a non-commutative bilinear matrix platform and information theory to equivocate intermediate entropy.
Since we're sharing our pre-prints, this is my latest research. The use case is low communication overhead digital signatures, good for constrained network environments. I was researching novel lattice constructions and one idea simply led to the next. Everyone forgot non-commutative cryptography was a thing after braid groups, but the …
CA root attack
What's a good paper on CA root attacks? You know, if the signing chain was compromised; what is there in place to mitigate that?
Specification - Public Key Directory for the Fediverse (Key Transparency)
Seeking suggestions and contributions on developing Tokenomics model for COCO Authentication Protocol
As part of the venture startup, 'coco-space', under Statecraft Laboratories (unregistered startup), I am trying to explore sustainable tokenomics models to create an economy for a certain COCO Protocol where authenticators, users, and verifiers thrive while maintaining robust privacy guarantees. 💡 If you wish to volunteers/co-author, if interested in collaboratively …
Studie: Entwicklungsstand Quantencomputer Version 2.1
This study discusses the current state of affairs in the theoretical aspects and physical implementation of quantum computing, with a focus on applications in cryptanalysis. It is designed to be an orientation for scientists with a connection to one of the fields involved—such as mathematicians, computer scientists. These will find …
How might I try to get ahead implementing PQ algorithms in TLS?
I’ve written my own TLS 1.3 implementation (for fun). I would like to keep this up to date when post quantum algorithms come around. I’m guessing a supported_groups extension will be added for one of the algorithms, maybe Kyber. I understand how NTRU works but haven’t looked into Kyber or …
Are AEAD encryptions really non-mallable?
I understand that authenticated encryption provides immallability, that an attacker could not mess with the ciphertext and still have it "decrypted", but if there truly are an infinity number of possible decryption keys, wouldn't this simply gives a tolerance of the messing? Just like how hash is collisible by pigeonhole
128bit security in 2025
Hi, Given that essentially all production ECC systems are 256-bit, and that 256-bit is really 128-bit strong in the context of our best attacks Pollards/BSGS. Do we consider 128-bit enough for the medium term (5-10years). It's starting to feel too small.