I write about cryptography, web security, and secure software development. Creator of practical crypto validation tools at Devglan.
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Dec 22, 2025 · 3 min read · Cryptography is a critical foundation of modern software systems — protecting passwords, authentication tokens, files, and sensitive user data. Yet many applications remain vulnerable not because encryption is missing, but because cryptography is mis...
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Jun 22, 2024 · 2 min read · Chacha20 is a stream cipher designed by Daniel J. Bernstein that is part of the Chacha family of ciphers. It's known for its performance, simplicity, and security. Here's a brief overview and an example of how to use Chacha20 for encryption and decry...
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