LLIANPRinlianpr.hashnode.dev·3d ago · 5 min readWhat Is Hashing in Blockchain? A Beginner-Friendly ExplanationIntroduction: Why Hashing Matters in Blockchain Hashing is one of the most important technologies behind blockchain security. Although the term may sound technical, the basic idea is simple: hashing c00
VVVidit Vatsindsa-decoded.hashnode.dev·4d ago · 2 min readLC-1 Two Sum ProblemWe are given an array of integers nums and an integer target. Return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you00
DVDevansh Vermainbackendblueprints.hashnode.dev·6d ago · 7 min readHow consistent hashing works and helps in rebalancing shards in a SQL DB.The problem consistent hashing solves Say you shard your users table across 4 database nodes /shards using a hash function -> hash(user_id) % 4. This works fine — until you add a 5th node. Now % 4 bec00
KSKanishka Shashiinnodej.hashnode.dev·Jul 2 · 8 min readSecuring Apps: Password Hashing, RBAC, OAuth, and OpenID ConnectSecurity is one of those things that's easy to bolt on badly and hard to retrofit well. Most applications end up needing to answer four separate questions: How do we store credentials safely? How do w00
PMPrasanth Madhurapantulainfreecodecamp.org·Jun 29 · 12 min readHow a Bloom Filter Works: Build One From Scratch in PythonA Bloom filter gives you something that feels like magic: it can tell you whether an item is in a set of billions, using only a few kilobytes of memory. And it answers in the same tiny amount of time 00
RPRebika Parajuliinpico-ctf.hashnode.dev·Jun 12 · 3 min readkeygenme-py | CyLab Security Academy (PicoCTF)keygenme-py is a Medium level ctf challenge in the reverse engineering domain. A python script with no instructions in present in this challenge. A file named keygenme-trial.py is provided. Upon downl10
CSCraig Solomonincraigsolomon.hashnode.dev·Jun 10 · 5 min readSHA-256 Cryptographic Hashing for Developers: File Integrity ProofYou modify one pixel in a 4K image. The file size barely changes. But run SHA-256 on both versions and you get completely different 64-character hashes. This isn't a bug. It's the cryptographic avalan10
PPrajjvalinprajjval.hashnode.dev·May 31 · 6 min readHashing Explained: From Collisions to Real-World Trade-OffsMost people hear this: Hashing gives O(1) lookup. And suddenly hashing becomes some magical data structure that solves everything. Not really. Hashing is one of the most widely used techniques in so00
JJebitokinsharonjebitok.com·May 6 · 7 min readAnonforce Anonforce is a TryHackMe machine that focuses on FTP misconfiguration, PGP encryption, and password cracking. The box exposes an FTP server with anonymous login enabled, granting access to the entire 00
KPKrystian Piękośinblog.infotraining.pl·Apr 16 · 6 min readAnnotations for C++26 HashingIn my recent post, I demonstrated how to use static reflection from C++26 to implement generic hash computation for custom types. Let's review the final implementation. The core of the solution is the10
