bcrypt

Installation

Add the following to Cargo.toml:

bcrypt = "0.7"

The minimum Rust version is 1.34.0

Usage

The crate makes 3 things public: DEFAULT_COST, hash, verify.

extern crate bcrypt;

use bcrypt::{DEFAULT_COST, hash, verify};

let hashed = hash("hunter2", DEFAULT_COST)?;
let valid = verify("hunter2", &hashed)?;

The cost needs to be an integer between 4 and 31 (see benchmarks to have an idea of the speed for each), the DEFAULT_COST is 12.

Benchmarks

Speed depends on the cost used: the highest the slowest. Here are some benchmarks on my 4 years old laptop to give you some ideas on the cost/speed ratio. Note that I don't go above 14 as it takes too long.

test bench_cost_4       ... bench:   1,197,414 ns/iter (+/- 112,856)
test bench_cost_10      ... bench:  73,629,975 ns/iter (+/- 4,439,106)
test bench_cost_default ... bench: 319,749,671 ns/iter (+/- 29,216,326)
test bench_cost_14      ... bench: 1,185,802,788 ns/iter (+/- 37,571,986)

Acknowledgments

This gist for the hash splitting and the null termination.

Changelog

• 0.7.0: add HashParts::from_str and remove Error::description impl, it's deprecated
• 0.6.3: add hash_with_salt function and make Version::format_for_version public
• 0.6.2: update base64 to 0.12
• 0.6.1: update base64 to 0.11
• 0.6.0: allow users to choose the bcrypt version and default to 2b instead of 2y
• 0.5.0: expose the inner bcrypt function + edition 2018
• 0.4.0: make DEFAULT_COST const instead of static
• 0.3.0: forbid NULL bytes in passwords & update dependencies
• 0.2.2: update rand
• 0.2.1: update rand
• 0.2.0: replace rust-crypto with blowfish, use some more modern Rust things like ? and handle more errors
• 0.1.6: update rand and base64 deps
• 0.1.5: update lazy-static to 1.0
• 0.1.4: Replace rustc-serialize dependency with bcrypt
• 0.1.3: Fix panic when password > 72 chars
• 0.1.1: make BcryptResult, BcryptError public and update dependencies
• 0.1.0: initial release