Knowledge Base
Explore articles about cryptography in general, modern security standards used worldwide, and the specific encryption powering giovium. Learn exactly how cryptography works to keep your data safe.
Base64 Encoding vs Encryption
Clarifying the fundamental difference between data obfuscation and cryptographic security.
Read ArticleBLAKE2 and BLAKE3 Explained
The extremely fast, modern hash functions designed to outperform SHA-2 and SHA-3 while maintaining equivalent security guarantees.
Read ArticleBrute Force vs Dictionary Attacks
Understanding the two primary methods attackers use to crack passwords, how they differ in strategy, and why password length and uniqueness matter more than complexity.
Read ArticleChaCha20 vs XChaCha20
Exploring the differences in modern stream ciphers and the importance of extended nonces.
Read ArticleCryptographic Agility
Why smart systems build in the capacity to upgrade ciphers dynamically.
Read ArticleDiffie-Hellman Key Exchange
Understanding the mathematics of how two parties safely compute a shared secret across a hostile public channel.
Read ArticleElliptic Curve Cryptography Overview
Why modern cryptography abandoned massive prime number arithmetic in favor of elegant mathematical curves, and how ECC delivers equivalent security with dramatically smaller keys.
Read ArticleEnd-to-End Encryption vs In-Transit
Why padlocks on the browser don't mean your data is strictly private.
Read ArticleEphemeral Keys in Chat Applications
The temporary, burn-after-reading keys used in modern messengers.
Read ArticleFace ID, Secure Enclave, and Biometric Security
How Apple Face ID uses 3D depth mapping and the Secure Enclave to protect cryptographic keys, and why 2D camera-based face unlock is fundamentally insecure.
Read ArticleFinite Fields and Modular Arithmetic
The fundamental mathematical structure underlying virtually all modern cryptography, from RSA to elliptic curves to post-quantum lattices.
Read ArticleHash-Based Signatures and SPHINCS+
How digital signatures built purely from hash functions provide quantum-resistant security with minimal mathematical assumptions, forming a key pillar of post-quantum cryptography.
Read ArticleHow Asymmetric Encryption Works
Why we use two distinct keys instead of one to securely interact over the internet.
Read ArticleHow Important is Password Length?
Why length strictly beats complexity when building brute-force resistance.
Read ArticleHow Poly1305 Works
Ensuring data integrity and preventing attackers from tampering with encrypted files.
Read ArticleHow to Choose a Good Master Password
Actionable advice for securing your zero-knowledge vault.
Read ArticleHow XChaCha20 Works
The mechanics of the extended-nonce stream cipher powering your vault encryption.
Read ArticleKey Rotation Strategies
Why relying on a single encryption key indefinitely is a critical risk.
Read ArticleMan-in-the-Middle Attacks
How attackers intercept network traffic, and how cryptography stops them.
Read ArticleOffline-First Security Paradigms
Why the safest cloud is the one that assumes it will be fully breached.
Read ArticlePadding Oracle Attacks
Exploiting block cipher padding to decrypt ciphertexts without a key.
Read ArticlePepper vs Salt: What's the Difference?
Understanding the two critical spices of secure password hashing.
Read ArticlePhishing and Social Engineering
Why the most devastating security breaches bypass cryptography entirely by manipulating humans, and how to recognize and defend against psychological attacks.
Read ArticlePost-Quantum Cryptography
Preparing for the catastrophic arrival of quantum supercomputers.
Read ArticleRainbow Table Attacks
How attackers pre-compute massive databases of password hashes to crack credentials instantly, and why salting completely neutralizes this devastating technique.
Read ArticleRSA Encryption Explained
How the RSA algorithm uses massive prime numbers to secure data, why key sizes are so large, and why the world is gradually migrating away from it.
Read ArticleSecure Enclaves and TPMs
The physically hardened vault sitting inside your mobile device processor.
Read ArticleSecure Key Storage on Mobile Devices
How iOS Keychain, Android Keystore, and biometric gating protect cryptographic secrets using hardware-backed isolation even if your phone is compromised.
Read ArticleSecuring Data at Rest
Protecting information when it isn't actively moving across the internet.
Read ArticleShor's Algorithm Explained
The specific quantum equation destined to break the internet.
Read ArticleSide-Channel Attacks Explained
Hacking cryptography by exploiting physical hardware leaks rather than math.
Read ArticleSupply Chain Attacks in Software
How attackers compromise software by infiltrating the tools, libraries, and build pipelines that developers trust, and why verifying the integrity of dependencies is critical.
Read ArticleSymmetric Encryption Basics
Fast, reliable encryption using a single shared secret key like AES or ChaCha20.
Read ArticleThe Chinese Remainder Theorem in Cryptography
How a 2,000-year-old mathematical theorem dramatically speeds up RSA decryption and underpins secret sharing schemes used in modern distributed systems.
Read ArticleThe Critical Importance of a Salt
Why adding random data to your password prevents devastating Rainbow Table attacks.
Read ArticleThe Danger of Metadata
Why who you talk to is often more compromising than what you say.
Read ArticleThe Discrete Logarithm Problem
The deep mathematics that make Elliptic Curve cryptography possible.
Read ArticleThe giovium Security Philosophy
How zero-knowledge offline-first principles guide application development.
Read ArticleThe Threat of Timing Attacks
How a microscopic difference in CPU processing time can leak passwords.
Read ArticleTwo-Factor Authentication Explained
How adding a second layer of verification dramatically reduces account takeover risk, comparing TOTP codes, SMS verification, and hardware security keys.
Read ArticleUnderstanding Argon2
The pinnacle of modern Key Derivation Functions designed to resist GPU cracking.
Read ArticleUnderstanding Hardware Security Modules (HSMs)
Physical devices dedicated to cryptographic processing and key protection.
Read ArticleUnderstanding OAuth and OpenID Connect
How modern websites let you log in with Google or Apple without sharing your password, and the cryptographic delegation framework that makes it safe.
Read ArticleUnderstanding SHA-2
The workhorse hash family securing the modern internet, from TLS certificates to Bitcoin mining, and why it remains trusted despite being two decades old.
Read ArticleUnderstanding SHA-3 and Keccak
The newest NIST hash standard built on a completely different mathematical foundation than its predecessors, providing diversity against catastrophic cryptographic failures.
Read ArticleWhat are Public and Private Keys?
The foundation of asymmetric cryptography: understanding the dual-key system.
Read ArticleWhat are Session Keys?
Accelerating secure handshakes using temporary symmetric channels.
Read ArticleWhat are Zero-Knowledge Proofs?
Mathematically proving you know a secret without revealing the secret itself.
Read ArticleWhat is a Cryptographic Hash Function?
The one-way mathematical meat grinders of the internet.
Read ArticleWhat is a Digital Signature?
The mathematical equivalent of a physical signature or wax seal.
Read ArticleWhat is a Key Derivation Function (KDF)?
Turning easily remembered passwords into cryptographically hard keys.
Read ArticleWhat is a Nonce?
Understanding the critical role of nonces in cryptography: why every encryption operation needs a unique, never-repeated number to stay secure.
Read ArticleWhat is a Password Manager?
Why memorizing passwords is a losing strategy, how password managers work under the hood, and why they are the single most impactful security tool for everyday users.
Read ArticleWhat is Public Key Infrastructure (PKI)?
The hierarchical system that proves websites are who they claim to be.
Read ArticleWhat is TLS and HTTPS?
A complete walkthrough of how Transport Layer Security protects your internet traffic, from the initial handshake to encrypted data transfer.
Read ArticleWhy MD5 is Broken
How the MD5 hash function went from industry standard to a textbook example of cryptographic failure, and why it must never be used for security.
Read ArticleWhy Not Use AES? Enter ChaCha
Exploring the shift away from hardware-reliant ciphers towards software-defined security.
Read ArticleWhy Randomness is Hard for Computers
The fundamental conflict between deterministic silicon and true entropy.
Read ArticleWhy SHA-1 is Deprecated
How a once-trusted hash function was broken by collision attacks, and why the entire internet had to migrate away from it.
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