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# cryptography

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

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[x509Lab]Generating Ed25519 Certificate Chains in the Browser (No Server Required)

[x509Lab]Generating Ed25519 Certificate Chains in the Browser (No Server Required)

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2 min read
# I Replaced a $100K Security Audit with a CI Pipeline — And It Caught More Bugs

# I Replaced a $100K Security Audit with a CI Pipeline — And It Caught More Bugs

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5 min read
QRVA: A protocol for cryptographic verification of physical QR codes — design decisions and open questions

QRVA: A protocol for cryptographic verification of physical QR codes — design decisions and open questions

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11 min read
Lagrange interpolation: turning points into a polynomial

Lagrange interpolation: turning points into a polynomial

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6 min read
Digital signatures: Schnorr, ECDSA and how PS3 was hacked

Digital signatures: Schnorr, ECDSA and how PS3 was hacked

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9 min read
Animated Cryptographic QR Codes: Killing Screenshot Attacks at the Display Layer

Animated Cryptographic QR Codes: Killing Screenshot Attacks at the Display Layer

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5 min read
Private keys and elliptic curves: a deep-dive for people who don't like math

Private keys and elliptic curves: a deep-dive for people who don't like math

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7 min read
How to Prepare Your TLS Stack for Post-Quantum Cryptography Today

How to Prepare Your TLS Stack for Post-Quantum Cryptography Today

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5 min read
The 2029 Deadline Nobody Building Agent Infrastructure Is Talking About

The 2029 Deadline Nobody Building Agent Infrastructure Is Talking About

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5 min read
A Post-Quantum Hybrid Encryption for High-Load Systems in TypeScript

A Post-Quantum Hybrid Encryption for High-Load Systems in TypeScript

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7 min read
P-256 vs 3DES: Why the Next Card Network Won't Use Visa's Crypto

P-256 vs 3DES: Why the Next Card Network Won't Use Visa's Crypto

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2 min read
HMAC-SHA256 in Practice: How Crypto Casinos Generate Provably Fair Game Outcomes

HMAC-SHA256 in Practice: How Crypto Casinos Generate Provably Fair Game Outcomes

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3 min read
🔐 AES-256 Finally Makes Sense (And It’s Way Simpler Than You Think)

🔐 AES-256 Finally Makes Sense (And It’s Way Simpler Than You Think)

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2 min read
Implementing ECDSA from Scratch Without Libraries

Implementing ECDSA from Scratch Without Libraries

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12 min read
MPC in TypeScript: Private Computation That Actually Runs

MPC in TypeScript: Private Computation That Actually Runs

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7 min read
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