The Detroit Post
Saturday, 16 October, 2021

Best Rust Libraries

Maria Johnson
• Thursday, 10 December, 2020
• 8 min read

Cryptography is the process of transforming information into a secure format, mostly by encryption. Encryption ensures that data passing through the web is safe and reliable.

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Although Rust has a random number generator, the main suite in use today is OpenSSL. As you’ll see in this guide, the Rust ecosystem offers an expansive range of rich-featured cryptography libraries to help you keep data safe in transit to and from your applications.

In this guide, we’ll review the state of cryptography in Rust and compare some open-source encryption libraries, including: With cryptography suites, you can secure a network connection that uses TLS or SSL.

This is a GnuPG Made Easy (GPG ME) library for Rust. This open-source library allows us to build safe, fast, and small crypto applications using Rust with Boring SSL’s cryptography primitives.

Rand is a Rust library for random number generation. Random numbers are generated and converted to useful types, distributions, and some randomness-related algorithms.

Some rand code may work with older Rust versions, but it is not recommended using it. With UUID, unique identifiers can be assigned to entities without requiring a central allocating authority.


Passwords are a form of encryption that help us create strong cryptographic keys. With password-based encryption, users can create strong secret keys based on the password they provide.

Bcrypt is an open-source library that lets you easily hash and verify passwords on Rust. Djangohashers is a Rust port of the password primitives that are used in Django projects.

You can use the password hash algorithm of this library in any Rust project. This Rust open-source library consists of a collection of password hashing and verification routines.

With Transport Layer Security (TLS), data sent over the internet is encrypted to keep private and sensitive information safe from bad actors. The following libraries offer the TLS protocol for Rust -based applications.

Rustls, pronounced “restless,” is a modern library that implements TLS for Rust. It uses the ring library for cryptography libwebpki for certificate verification.

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Rustls assures of high level cryptographic security with no configuration required. Tokio-openssl is an implementation of SSL streams for Tokyo, an asynchronous runtime for Rust, backed by OpenSSL.

This tool enables you to delete temporary files and directories with the temp file() and temper() function. You can pass claims securely between two parties by decoding, verifying, and generating encoded credentials called JWT.

This library supports cryptographic algorithm and is licensed under Apache 2.0 and has 14 versions at the time of writing. Hashing in cryptography means converting data into unique strings that are undecipherable to humans.

Let’s zoom in on some libraries that offer hashing in Rust. FNC (Fowler/Poll/VO) is a custom harsher implementation that is fast and has good dispersion.

While the default harsher implementation, Splash, is good in many cases, it’s usually slower than other algorithms with short keys. The disadvantage of rust AFN is that it performs poorly on larger inputs and provides no protection against collision attack.

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If you want a hash function that’s faster than MD5, SHA-1, SHA-2, and secure as the latest version of SHA-3, look no further than blake2-rfc. These are usually designed for data encryption, authentication, and digital signatures.

Curve25519-dalek is built to provide a clean and safe mid-level API, executing ECC-based crypto protocols such as zero-knowledge proof systems, key agreement, signatures, and anonymous credentials. This library is licensed under the BSD 3-Clause and has 64 versions published at the time of writing.

To use the latest released version of this library in your application, add the following code to your cargo.Tom file. With ed25519-dalek, ed25519 key generation, signing, and verification become easier and faster in Rust.

If you use merlin in your application, you can execute noninteractive protocols as if they were interactive. Rust -secp256k1 is a wrapper around libsecp256k1, a library that can be used for producing EC DSA signatures using the Sect curve secp256k1.

Whether you’re writing in Rust or some other programming language, you should always use encryption when transferring information over the internet. As you can tell by the wide variety of popular, production-ready cryptography suites, random number generators, password solutions, TLS, tools, and algorithms available, the state of crypto in Rust is quite strong.

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We have seen the different sections housing different methods' cryptography can be performed and libraries that help secure parsing of data in Rust based applications. If you’re interested in monitoring and tracking performance of your Rust apps, automatically surfacing errors, and tracking slow network requests and load time, try Rocket.

Unlike my review of Rust serialization libraries, it doesn’t make sense to compare performance between different formats. For the web, there are only two stream formats that have achieved widespread implementation: GZIP / deflate and Broth.

Snappy is Google’s 2011 answer to LZ77, offering fast runtime with a fair compression ratio. It does away with arithmetic and Huffman coding, relying solely on dictionary matching.

Though all of them use basically the same algorithm, the resulting compression ratio may differ since some implementations choose defaults that maximize speed whereas others opt for a higher compression ratio. The Standard (or ‘STD’) algorithm, published in 2016 by Facebook, is meant for real-time applications.

It is also used in other cases where time is of the essence, e.g., in Barfs file system compression. This algorithm is quite asymmetric in that compression is far slower and requires much more memory than decompression.

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It is often used for Linux distribution’s package format to allow reduced network usage with agreeable decompression CPU and memory requirements. Though Roughly takes more time to compress, this is an acceptable trade off for reducing network traffic.

Tar, the venerable Tape Archive, is the oldest format, with an initial release in 1979. It actually has no compression of its own but, in typical UNIX fashion, delegates to stream archives such as GZIP (DEFLATE), bzip2 (Law), and oz (Lima).

The easiest approach is to take a & slice of bytes and return a DEC with the compressed data. This may not be optimal for all formats, though, because sometimes you need to go back and fix block lengths in the written output.

If you’re interested in monitoring and tracking performance of your Rust apps, automatically surfacing errors, and tracking slow network requests and load time, try Rocket. Instead of guessing why problems happen, you can aggregate and report on what state your application was in when an issue occurred.

A musician turned programmer, he has worked in many fields, from voice acting, to programming, to teaching, to managing software projects.

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