#hash articles | Hashnode

HGHrithik Guptahrithikgupta.hashnode.devJul 28 · 7 min read

How We Enabled Automatic OTP Detection in Android Without Requesting SMS Permission

OTP Verification Looked Simple... ...until we actually started using the app. Like most applications, Snibto uses OTP verification for authentication. Initially, the flow was straightforward: User en

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MNMinaal Naikarmorofchain.hashnode.devFeb 19 · 2 min read

The Armor of the Chain — Why You Can't "Hack" Blockchain

Welcome to Day 3! If you’ve been following along, we’ve covered the Why (Day 1) and the Structure (Day 2). But today, we answer the question that skeptics always ask: "If it's just digital data, why can't someone just edit the numbers and give themse...

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JDJanhvi Deshmukhinternal-git-folder-janhvi.hashnode.devJan 29 · 7 min read

Unlock the Guru’s Hidden Cupboard: A Deep Dive into the .git Folder

Let’s start with our final blog! We’ve spent our time perfecting the rhythm of the dance, learning how to capture every Chakkar(spin) and Tatkar(footwork) with our "Personal Videographer," and exploring the parallel universes of branching. But as any...

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PJPurakhnath Jyanipurakhnath-jyani.hashnode.devJan 1 · 4 min read

The Inner Workings of Git: Decoding the Purpose of the .git Directory

Introduction In my previous blogs, I explained why version control exists and how beginners can start using Git with basic commands.After using Git for some time, a natural curiosity appears: what is Git actually doing behind the scenes? When we run ...

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AGAkshaya Gangatharangr-akshaya.hashnode.devDec 14, 2025 · 6 min read

Hash Functions Explained Simply

From Passwords to Blockchains to Zero-Knowledge Proofs Hash functions quietly power much of the digital world - blockchains, passwords, digital signatures, and zero-knowledge proofs. Yet for many developers and tech enthusiasts, they remain abstract ...

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ABAkash Bijwedevutilx.hashnode.devDec 10, 2025 · 3 min read

Hash Generator — Turn Your Text Into a Secure Hash in a Click 🔐

Ever needed a quick way to generate a hash from some text — maybe for verifying data integrity, creating checksums, or just experimenting with cryptographic digests?Enter the Hash Generator on DevUtilX — a simple, client-side tool that converts any t...

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PPhilicarelangage-ruby.hashnode.devDec 3, 2025 · 1 min read

Checking for the existence of a Hash key

You can test whether a key is present in a hash and return a precise message when it fails thanks to the KeyError exception raised by #fetch: begin {one: "1", two: "2"}.fetch(:three) rescue => e p "The key #{e.key.inspect} cannot be found in #{e....

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PPhilicarelangage-ruby.hashnode.devNov 30, 2025 · 1 min read

Vérifier l'existence d'une clé de `Hash`

On peut tester la présence d’une clé dans un hash et retourner un message très précis le cas échouant grâce à l’exception KeyError levée par #fetch : begin {un: "1", deux: "2"}.fetch(:trois) rescue => e p "La clé #{e.key.inspect} est introuva...

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Aadeloliadeloli.hashnode.devSep 29, 2025 · 2 min read

Introduction to Hashes in Cybersecurity: Definition, Types, and How to Generate Them

Hashes are essential in cybersecurity: they protect data, verify file integrity, and secure passwords. This guide will explain what a hash is, the most common types, and how to generate them on Windows and Linux/macOS. What is a hash? A hash is a “di...

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EEErk Ekinerkek.inSep 13, 2025 · 4 min read

Mastering Data Integrity with Merkle Trees in Swift

In the world of computer science, ensuring data integrity is paramount. Whether you're building a distributed system, a blockchain application, or simply need to verify that a large file hasn't been corrupted, you need a reliable way to detect any ch...

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How We Enabled Automatic OTP Detection in Android Without Requesting SMS Permission

The Armor of the Chain — Why You Can't "Hack" Blockchain

Unlock the Guru’s Hidden Cupboard: A Deep Dive into the .git Folder

The Inner Workings of Git: Decoding the Purpose of the .git Directory

Hash Functions Explained Simply

Hash Generator — Turn Your Text Into a Secure Hash in a Click 🔐

Checking for the existence of a Hash key

Vérifier l'existence d'une clé de `Hash`

Introduction to Hashes in Cybersecurity: Definition, Types, and How to Generate Them

Mastering Data Integrity with Merkle Trees in Swift

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#hash

Explore Hashnode

Trending tags this week

How We Enabled Automatic OTP Detection in Android Without Requesting SMS Permission

The Armor of the Chain — Why You Can't "Hack" Blockchain

Unlock the Guru’s Hidden Cupboard: A Deep Dive into the .git Folder

The Inner Workings of Git: Decoding the Purpose of the .git Directory

Hash Functions Explained Simply

Hash Generator — Turn Your Text Into a Secure Hash in a Click 🔐

Checking for the existence of a Hash key

Vérifier l'existence d'une clé de `Hash`

Introduction to Hashes in Cybersecurity: Definition, Types, and How to Generate Them

Mastering Data Integrity with Merkle Trees in Swift