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# botan-rs
[](https://github.com/randombit/botan-rs/actions)
[](https://crates.io/crates/botan)
[](https://docs.rs/botan)
This crate wraps the C API exposed by the [Botan](https://botan.randombit.net/)
cryptography library.
Currently the crate exposes ciphers, hashes, MACs, KDFs, password based key
derivation (PBKDF2, Scrypt, Argon2, etc), bcrypt password hashes, random number
generators, X.509 certificates, format preserving encryption, HOTP/TOTP, NIST
key wrapping, multiprecision integers, and the usual public key algorithms (RSA,
ECDSA, ECDH, DH, ...)
PRs and comments/issues happily accepted.
MSRV
-----
The Minimum Supported Rust Version of this crate is Rust 1.58.0,
*unless* you enable support for `no_std` builds, in which case Rust
1.64.0 is required.
Botan Versions Supported
--------------------------
This crate requires Botan 2.13.0 or higher.
Features
---------
The following features are supported:
* `no-std`: Enable a no-std build. This requires Rust 1.64.0 or higher,
as well as `alloc` support
* `vendored`: Build a copy of the C++ library directly, without
relying on a system installed version.
* `botan3`: Enable support for using APIs added in Botan 3.
This enables several new features, and more efficient operation.
This feature is implicitly enabled if you use `vendored`.
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