Add the following to Cargo.toml:
bcrypt = "0.15"
The minimum Rust version is 1.60.0.
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.
bcrypt
crate supports no_std
platforms. When alloc
feature is enabled,
all crate functionality is available. When alloc
is not enabled only the
raw bcrypt()
function is usable.
Speed depends on the cost used: the highest the slowest. Here are some benchmarks on a 2019 Macbook Pro 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_10 ... bench: 51,474,665 ns/iter (+/- 16,006,581)
test bench_cost_14 ... bench: 839,109,086 ns/iter (+/- 274,507,463)
test bench_cost_4 ... bench: 795,814 ns/iter (+/- 42,838)
test bench_cost_default ... bench: 195,344,338 ns/iter (+/- 8,329,675)
This gist for the hash splitting and the null termination.
While bcrypt works well as an algorithm, using something like Argon2 is recommended for new projects.
- 0.15.1: update base64 dependency
- 0.15.0: add an
alloc
feature that can be disabled. - 0.14.0: use
subtle
crate for constant time comparison, update base64 and bump to 2021 edition - 0.13.0: make zeroize dep opt-out and use fixed salt length
- 0.12.1: zero vec containing password in the hashing function before returning the hash
- 0.12.0: allow null bytes in password
- 0.11.0: update deps causing big bump in MSRV
- 0.10.1: fix panic with invalid hashes and allow
2x
- 0.10.0: update blowfish to 0.8 and minimum Rust version to 1.43.0.
- 0.9.0: update base64 to 0.13 and getrandom to 0.2
- 0.8.2: fix no-std build
- 0.8.0: constant time verification for hash, remove custom base64 code from repo and add
std
feature - 0.7.0: add HashParts::from_str and remove Error::description impl, it's deprecated
- 0.6.3: add
hash_with_salt
function and makeVersion::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