Scrypt Key Derivation Tool
Scrypt Key Derivation Tool: Executes Scrypt memory-hard algorithm (RFC 7914) requiring sequential memory allocation.
About this scrypt key derivation tool
Executes Scrypt memory-hard algorithm (RFC 7914) requiring sequential memory allocation Runs entirely in-memory using Web Crypto primitives to keep sensitive tokens, certificates, and cryptographic keys secure from third-party interception.
Encoding & cryptographic principles
Performs symmetric encryption and asymmetric public-key operations adhering to NIST FIPS 197 (AES), RFC 7539 (ChaCha20-Poly1305), RFC 8032 (Ed25519 Digital Signatures), and PKCS#1 / RFC 3447 (RSA). AES-GCM provides authenticated symmetric encryption using 128-bit or 256-bit keys and 96-bit initialization vectors (IVs) to ensure confidentiality and cryptographic authentication. Key derivation employs PBKDF2 (RFC 2898) with HMAC-SHA256 and configurable salt iterations to thwart brute-force dictionary attacks.
Worked verification example
Scenario: A cryptographer tests Scrypt memory-hard key derivation parameters.
Sample input:
Processing: The client-side engine parses the provided input, executes the transformation routine, and outputs the result in real time.
Illustrative output:
Security parameters & input constraints
The implementation passes r and p to the scrypt library without this page's own range validation; invalid, non-power-of-two or costly parameters may error or stall. This derives bytes only; it does not encode a password record, verify passwords or manage salts.
Cryptographic digests, encoded strings, and signatures generated by Scrypt Key Derivation Tool should be verified against target authentication systems before production use.
Client-side Web Crypto boundary
Key derivation, hashing, and encoding in Scrypt Key Derivation Tool execute in local memory using Web Crypto APIs without remote socket transmission.
Cryptographic specifications & RFC standards
Technical specifications and cryptographic RFC standards governing algorithms and key representations:
Scrypt Key Derivation Tool verification · Audit standards
How to use it
- Enter JSON with password, salt and optional N, r, p and dkLen.
- Run local scrypt over UTF-8 inputs; N is capped at 32768 and dkLen at 64 bytes.
- Read the derived hex in JSON and retain the exact parameters to reproduce it.
Frequently asked questions
Which scrypt parameters are used?+
It reads JSON password, salt, N, r, p and optional dkLen, caps N at 32768 and derived length at 64 bytes, then returns scrypt hex.
What result shape does the password/NaCl scrypt example produce?+
Enter password password, salt NaCl, N 16384, r 8, and p 1. The JSON result labels its algorithm as scrypt; parameter choice still requires a separate production-security review.
Is this a password policy checker?+
No. A derived key does not assess password strength, storage, rate limiting, or account policy.
Why do limits matter?+
scrypt memory and CPU cost depend on parameters; page caps do not establish production-safe settings.