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#cryptography

Discussions on encryption, hashing, ciphers, and cryptographic protocols.

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PicoCTF Mod 26 Writeup — Brute-Force a Caesar Cipher

PicoCTF Mod 26 Writeup — Brute-Force a Caesar Cipher

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3 min read
How Zero-Knowledge Proofs Break the Deposit-Withdrawal Link On-Chain

How Zero-Knowledge Proofs Break the Deposit-Withdrawal Link On-Chain

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2 min read
Zero-Knowledge Proofs Explained for Developers

Zero-Knowledge Proofs Explained for Developers

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2 min read
RSA-2048 and RSA-3072 have different futures

RSA-2048 and RSA-3072 have different futures

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6 min read
Everyone agrees on the risk. They disagree on the price.

Everyone agrees on the risk. They disagree on the price.

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7 min read
We Built a Dead Man's Switch for a Crypto Wallet - Then Broke Our Own Encryption, with Zero Dependencies

We Built a Dead Man's Switch for a Crypto Wallet - Then Broke Our Own Encryption, with Zero Dependencies

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7 min read
In April, banking was the least post-quantum-ready sector we measured. It is now second from the top.

In April, banking was the least post-quantum-ready sector we measured. It is now second from the top.

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4 min read
The One Line of Code That Stops Rainbow Table Attacks

The One Line of Code That Stops Rainbow Table Attacks

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3 min read
Sealing a file so nobody can argue you touched it

Sealing a file so nobody can argue you touched it

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5 min read
AnatomĂ­a de un pipeline de verificaciĂłn de 12 etapas para credenciales de agentes IA

AnatomĂ­a de un pipeline de verificaciĂłn de 12 etapas para credenciales de agentes IA

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3 min read
They steal your database and cannot crack a single password

They steal your database and cannot crack a single password

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5 min read
What your agent can prove after the second hop

What your agent can prove after the second hop

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6 min read
Hybrid encryption: why combine classical and post-quantum cryptography

Hybrid encryption: why combine classical and post-quantum cryptography

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2 min read
Why Your Audit Log Needs a Hash Chain

Why Your Audit Log Needs a Hash Chain

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4 min read
Quipu: post-quantum encryption in pure Rust, with a Python wheel

Quipu: post-quantum encryption in pure Rust, with a Python wheel

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2 min read
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