Argon2
Argon2 is a memory-hard password-hashing and key-derivation algorithm designed to make password-guessing attacks costly in time and memory.
Rust Servers, Services, and Apps
argon2 is a password-hashing library implementing the Argon2 key-derivation algorithm.
- How it is used
- Hashes registration passwords for storage instead of saving them in cleartext.
- How deep it goes
- Describes its storage role but gives no hashing API, configuration, or algorithm internals.
- Examples
- Uses tutor registration credentials stored with tutor IDs and usernames in Postgres.
- What you can do after
- Apply it via rust-argon2 to store password hashes instead of cleartext credentials.
Real-World Cryptography
Argon2 is a memory-hard password-hashing algorithm designed to make password-guessing attacks costly in time and memory.
- How it is used
- Uses Argon2 to store passwords more safely by making offline password guessing expensive.
- How deep it goes
- Explains salts, slowness, and memory hardness, but stops short of implementation details and parameter selection.
- Examples
- Uses stolen password databases, repeated guessing, rainbow tables, dedicated hardware, and a hash-function classification figure.
- What you can do after
- Evaluate password-hashing choices by comparing guessing cost, memory hardness, and configuration risks.
Related concepts
- password hashingkind of · Password hashing is the use of a one-way, deliberately costly function to derive values for securely storing and verifying passwords without retaining the original passwords.
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