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RustCrypto: Cryptographic Big Integers

crate Docs Build Status Apache2/MIT licensed Rust Version Project Chat

Pure Rust implementation of a big integer library which has been designed from the ground-up for use in cryptographic applications.

Provides constant-time, no_std-friendly implementations of modern formulas using const generics.

Documentation

Goals

  • No heap allocations. no_std-friendly.
  • Constant-time by default. Variable-time functions are explicitly marked as such.
  • Leverage what is possible today with const generics on stable rust.
  • Support const fn as much as possible, including decoding big integers from bytes/hex and performing arithmetic operations on them, with the goal of being able to compute values at compile-time.

Minimum Supported Rust Version

Rust 1.51 at a minimum.

License

Licensed under either of:

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.