This package provides primitives for generating random values.

This package provides an SFTP implementation, as described in https://filezilla-project.org/specs/draft-ietf-secsh-filexfer-02.txt, for Go.

Package shuffle provides primitives for shuffling slices and user-defined collections.

This package provides ShāngMì 4 cipher suites implementation (GM SM2/3/4).

Main functions:

• SM2 national secret elliptic curve algorithm library

• SM3 national secret hash algorithm library

• SM4 national secret block cipher algorithm library

This package implements RC2 Cipher in Golang.

Package blake256 implements BLAKE-256 and BLAKE-224 with SSE2, SSE4.1, and AVX acceleration and zero allocations.

This package calculates CRC64 checksums using carryless-multiplication accelerated with SIMD instructions for both ARM and x86. The code is based on the https://github.com/awesomized/crc64fast-nvme.git, crc64fast-nvme package in Rust.

Native Go implementation of Austin Appleby's third MurmurHash revision (aka MurmurHash3). Reference algorithm has been slightly hacked as to support the streaming mode required by Go's standard Hash interface.

This package is a drop-in replacement for the standard library hash/crc32 package, that features AVX 512 optimizations on x64 platforms, for a 2x speedup for IEEE CRC32 checksums. See Cyclic redundancy check for information.

obfs4proxy is a tool that attempts to circumvent censorship by transforming the Tor traffic between the client and the bridge. This way censors, who usually monitor traffic between the client and the bridge, will see innocent-looking transformed traffic instead of the actual Tor traffic.

CIRCL (Cloudflare Interoperable, Reusable Cryptographic Library) is a collection of cryptographic primitives written in Go. The goal of this library is to be used as a tool for experimental deployment of cryptographic algorithms targeting Post-Quantum (PQ) and Elliptic Curve Cryptography (ECC).

This package implements a functionality to convert keys between the PEM and JWK file formats.

Fast implementation of base58 encoding on Golang. A trivial big.Int encoding benchmark results in 6 times faster encoding and 8 times faster decoding.

Rocacheck is a Go library for checking RSA public keys for the ROCA vulnerability (CVE-2017-15361) that affected certain Infineon cryptographic libraries and smart cards.

This package provides an optimized pure Go implementation of elliptic curve cryptography operations over the secp256k1 curve as well as data structures and functions for working with public and private secp256k1 keys as cpecified in the https://www.secg.org/sec2-v2.pdf standard.

In addition, sub packages are provided to produce, verify, parse, and serialize ECDSA signatures and EC-Schnorr-DCRv0 (a custom Schnorr-based signature scheme specific to Decred) signatures. See the README.md files in the relevant sub packages for more details about those aspects.

This is a native Go implementation of the xxHash algorithm, an extremely fast non-cryptographic hash algorithm, working at speeds close to RAM limits.

ejson is a utility (CLI and Go library) for managing a collection of secrets in source control.

The secrets are encrypted using public key, elliptic curve cryptography (NaCl Box: Curve25519 + Salsa20 + Poly1305-AES). Secrets are collected in a JSON file, in which all the string values are encrypted. Public keys are embedded in the file, and the decrypter looks up the corresponding private key from its local filesystem.

ZCrypto is a research and data collection cryptography library, designed to be used for measuring and analyzing cryptographic deployments on the Internet. It is largely centered around the WebPKI.

Package dongle is a simple, semantic and developer-friendly Golang crypto package.

Package bmp implements a BMP image decoder and encoder.

This package implements reader and writer for PNG files and EXIF metadata in Go.

gotk4-layer-shell is a GTK Layer Shell and GTK4 Layer Shell bindings generator for Go and gotk4. It also provides generated bindings.

gotk3-layershell is a simple golang library to provide bindings for GTK Layer Shell library which can also be consumed in the gotk3 library.

This package provides Go library to easily convert .jpg and .png to .icns, or to convert from any image.Image to .icns.