About Codec & Crypto Studio
Codec & Crypto Studio is a client-side, multi-functional cryptography and text manipulation workspace. It integrates advanced format codecs (Base64 standard & URL-safe, Hexadecimal, URL percent-encoding, HTML Entity mappings, Unicode escapes), cryptographic hashes & signatures (MD5, SHA-1, SHA-256, SHA-512, and HMAC), symmetric block ciphers (AES-GCM and AES-CBC), and common text utility modules into a cohesive, fast workspace.
AES-GCM (Galois/Counter Mode) provides authenticated encryption (AEAD) ensuring both confidentiality and data integrity. For key derivation from string passphrases, we utilize the PBKDF2-HMAC-SHA256 algorithm running 100,000 iterations with a 16-byte random salt, generating cryptographically secure 256-bit keys resistant to brute-force and dictionary attacks.
Feature Specs & Privacy Guard
1. Auto-calculating Dashboard: Type or load once to see immediate multi-format output conversions including Base64, URL percent strings, hex, Unicode, MD5, and SHA-256 tags.
2. JWT Visualizer: Paste JSON Web Tokens to parse and colorize Header and Payload fields offline.
3. HMAC Signature Generator: Calculate RFC-compliant HMAC signatures using custom keys with SHA-1, SHA-256, or SHA-512 ciphers.
4. 100% Client-side Processing: Whether computing light HMAC signatures or encrypting large binary files via AES ciphers, all algorithms run locally in browser memory. No data is ever transmitted to a backend server.