CAP in Practice: What AP Actually Buys You
Network partitions are not rare events, and the interesting systems never pick one side cleanly.
2 min readdistributed-systems
Journal of applied systems
Hashing, cryptography & the digital wilderness.
Deep dives on the machinery underneath modern systems — what each primitive actually guarantees, what it costs, and what breaks when it composes.
Latest — 6 of 103
Full archiveSymmetric vs Asymmetric Crypto: When to Use Which
One key to share, two keys to manage. A decision guide with the protocols that mix both.
2 min readcryptography
What Hash Functions Actually Guarantee
Avalanche, collision resistance, preimage resistance — the three properties that make SHA-256 boring on purpose.
2 min readhashing
Merkle Trees Beyond Blockchains
The hash tree is not a blockchain primitive — it is a general proof-of-membership machine, and most systems use it badly.
1 min readhashing · distributed-systems
Keyed vs Unkeyed Hashes
SHA-256 and HMAC both output 32 bytes, and using the wrong one in the wrong place is a real vulnerability class.
1 min readhashing · security
Hash Tables vs Cryptographic Hashes
Same word, opposite requirements: one optimizes for speed and spread, the other for unpredictability.
1 min readhashing · algorithms