Cryptography

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cryptography (noun). The discipline concerned with communication security (eg, confidentiality of messages, integrity of messages, sender authentication, non-repudiation of messages, and many other related issues), regardless of the used medium such as pencil and paper or computers.

This community is for links about and discussion of cryptography specifically. For privacy technology more generally, use !privacy.

This community is explicitly not about cryptocurrency; see !crypto for that.

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The government unveils its quantum counter-weapons (www.politico.com)

submitted 6 months ago by solrize to c/[email protected]

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cross-posted from: https://lemmy.world/post/18617290

The National Institute of Standards and Technology has finally published the world’s first three official post-quantum cryptographic algorithms, tools designed to protect key systems against future quantum computers powerful enough to crack any code generated by a modern computer.

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[–] [email protected] 2 points 5 months ago

Encrypted "archives" like zip or similar will not be crackable by quantum computers. They use (if strongly encrypted) a well known stream cypher like AES. Those are not severely impacted by QC.

Only asymmetric crypto like RSA or ECDSA (elliptic curve) are easily cracked by a powerfull QC. These are used in communications like https.

Internet cummunication is fucked with qc. Stuff encrypted with a strong password is not.