Argon2 Hash Generator

The Argon2 Hash Generator computes an Argon2 hash from a plaintext password and a salt, using user-specified parameters. It supports Argon2id, Argon2i, and Argon2d variants, with options for version, hash length, memory_cost, time_cost, and parallelism. The tool outputs an encoding suitable for storage (PHC string) and can emit raw hash bytes if requested. It is designed for developers, security teams, and researchers who need reproducible hash outputs for authentication tests, benchmarks, and threat modeling.

Conceptually, Argon2 is a memory-hard key derivation function. The tool performs input validation, converts numeric parameters to internal units (memory_cost in KiB, time_cost in iterations), and executes the selected variant with the supplied salt and password. The result is a single hash value plus a standard header containing the type, version, and parameters. For interoperability, the tool can provide the PHC-compatible string or the raw hash, depending on workflow needs.

Who benefits: software engineers integrating password storage, security architects evaluating parameter trade-offs, auditors validating configurations, and educators building labs. Use cases include hashing sample credentials for test environments, teaching Argon2 behavior, or comparing performance across configurations. The tool helps ensure consistent results across languages and libraries by exposing explicit parameters and a stable salt, enabling reproducible security experiments.

Unique value: explicit control over Argon2 variant, version, and encoded output; built-in validation to prevent weak configurations; clear sample PHC output format; and the ability to export the encoded string for integration into codebases or configuration files. The tool emphasizes risk-aware defaults while allowing advanced tuning for performance benchmarks and compliance reporting.