Fajar Maulana Firdaus

Senior Engineer at DKatalis. Surabaya, Indonesia.

Now

Updated July 9, 2026

The big news first: I just joined DKatalis as a Senior Engineer. I am excited to start this new chapter.

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Recent writing

September 22, 2026Chelsea, Two Enzos, and a Promise KeptPersonal
September 9, 2026[Crypto: age] How Long Does a Passphrase Attack Take?Cryptography
September 7, 2026[Crypto: age] Passphrase or Key PairCryptography
September 5, 2026[Crypto: age] ChaCha20-Poly1305, Sealing the BodyCryptography
September 4, 2026[Crypto: age] scrypt, From Password to KeyCryptography
September 2, 2026[Crypto: age] Reading the HeaderCryptography

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