# Scrypt Validator Validate password against Scrypt derived key > Canonical page: https://elysiatools.com/en/tools/scrypt-validator - **Category:** Cryptography - **Keywords:** scrypt, validate, verify, password, check, security ## Overview The Scrypt Validator is a secure utility designed to verify if a provided password matches a specific Scrypt-derived key. By inputting the original salt and the target key alongside the specific Scrypt parameters, you can confirm the integrity and correctness of your password hashing implementation. ## Inputs - **Password** (text): Enter password to validate... - **Salt (hex)** (text): Enter the original salt in hex format... - **Derived Key (hex)** (text): Enter the derived key in hex format to validate against... - **Cost Factor (N)** (number): Cost factor used... - **Block Size (r)** (number): Block size used... - **Parallelism (p)** (number): Parallelism used... - **Key Length (bytes)** (number): Key length in bytes used... ## When to use - Verifying that a user-provided password matches a stored Scrypt hash during authentication. - Debugging or auditing password hashing configurations to ensure parameters match production standards. - Testing the compatibility of different Scrypt parameter sets (N, r, p) against existing derived keys. ## How it works - Enter the plaintext password you wish to validate. - Provide the original salt and the target derived key in hexadecimal format. - Adjust the cost factor (N), block size (r), parallelism (p), and key length to match the original hashing environment. - Submit the data to perform the cryptographic comparison and receive a confirmation of the match. ## Use cases - Validating user credentials against a database of Scrypt-hashed passwords. - Troubleshooting failed login attempts caused by mismatched hashing parameters. - Verifying the output of a custom Scrypt implementation against a known reference. ## Frequently asked questions ### What is Scrypt? Scrypt is a password-based key derivation function designed to be memory-hard, making it resistant to hardware-accelerated brute-force attacks. ### Why do I need to provide the salt? The salt is a unique, random value used during the hashing process. Without the exact salt used to create the original key, validation will fail. ### What happens if my parameters are incorrect? If the cost factor, block size, or parallelism settings do not match the original hashing configuration, the derived key will not match, even if the password is correct. ### Is this tool secure for sensitive passwords? This tool runs locally in your browser. No data is sent to a server, ensuring your password and keys remain private. ### What format should the salt and key be in? Both the salt and the derived key must be provided in hexadecimal (hex) format. ## Related tools - [Bcrypt Validator](https://elysiatools.com/en/tools/bcrypt-validator): Validate password against bcrypt hash - [PBKDF2 Validator](https://elysiatools.com/en/tools/pbkdf2-validator): Validate password against PBKDF2 derived key - [Foreign Key Validator](https://elysiatools.com/en/tools/data-foreign-key-validator): Validate foreign key relationships between multiple datasets. Perfect for checking data integrity, finding orphaned records, and ensuring referential consistency across related tables. Features: - Validate foreign key relationships - Find orphaned records - Check referential integrity - Support multiple key formats - Cross-table validation - Missing key detection - Duplicate key analysis - Relationship mapping Common Use Cases: - Database integrity checks - Data migration validation - ETL process verification - Referential consistency checks - Data quality assurance - Relationship analysis - [JSON Schema Validator](https://elysiatools.com/en/tools/json-schema-validator): Validate JSON data against a JSON Schema to verify structure and data types - [Password Validator](https://elysiatools.com/en/tools/password-validator): Validate password strength and check against common security requirements - [Strong Password Validator](https://elysiatools.com/en/tools/strong-password-validator): Validate password strength against common security requirements (uppercase, lowercase, numbers, special chars, length) - [URL Validator](https://elysiatools.com/en/tools/url-validator): Validate and analyze URLs for correctness and security - [Audio Concat Validator](https://elysiatools.com/en/tools/audio-concat-validator): Validate concatenated audio files for errors and inconsistencies ## Samples - [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion - [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion - [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion - [Web Image Processing Rust Samples](https://elysiatools.com/en/samples/web-image-processing-rust): Web Rust image processing examples including image read/save, scaling, and format conversion ## Related content - [Credential and JWT Security Workflow](https://elysiatools.com/en/hubs/auth-token-security): Generate or validate password credentials and inspect JWT security signals without treating key pairs as passwords.