This is a SIMD accelerated MD5 package, allowing up to either 8 (AVX2) or 16 (AVX512) independent MD5 sums to be calculated on a single CPU core.

md5-simd integrates a similar mechanism as described in minio/sha256-simd for making it easy for clients to take advantages of the parallel nature of the MD5 calculation. This will result in reduced overall CPU load.

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

Package keygen implements deterministic key generation algorithms.

blake3 is an implementation of BLAKE3 with AVX2 and SSE4.1 acceleration.

This package implements file encryption according to the https://age-encryption.org/v1 specification. It features small explicit keys, no configuration options, and Unix-style composability. This package provides a command line interface (CLI) tools.

PKI based identities for use in go-libp2p.

This package provides a native Go implementation of Austin Appleby's third MurmurHash revision (aka MurmurHash3).

Package sshsig implements signing/verifying armored SSH signatures. It may be used to sign data and verify signatures using SSH private keys or SSH agent. It gives the same output as using ssh-keygen, eg when signing ssh-keygen -Y sign -f keyfile -n namespace data.

This package implements consistent hashing that can be used when the number of server nodes increase or decrease (like in memcached). The hashing ring is built using the same algorithm as libketama.

This package provides an implementation of REALITY protocol, which is intented to eliminate the detectable TLS fingerprint on the server side, while still maintain the secrecy. It achieves full real TLS that is undistingwishable with the specified SNI to the middleman.

Multihash implementation in Go.

Package pbkdf2 implements password-based key derivation using the PBKDF2 algorithm described in RFC 2898 and RFC 8018.

The bsaes is a portable pure-Go constant time AES implementation based on the code from BearSSL. On appropriate systems, with a sufficiently recent Go runtime, it will transparently call crypto/aes when NewCipher is invoked.

This package implements elliptic curves needed for Bitcoin.

This package implements RFC 6979, which describes how to generate deterministic ECDSA signatures. Deterministic signatures remove the need for a random number generator during signing.

This package provides AES Cipher Block Chaining CipherText Stealing encryption and decryption methods.

This package provides an Ed25519 implementation with validation rules intended for consensus-critical contexts.

Libtrust is a library for managing authentication and authorization using public key cryptography. It provides authorization and access control through a distributed trust graph. It's maintained fork of https://github.com/docker-archive-public/docker.libtrust.

Package crypt is a implementation of crypt(3) by golang, originated from https://code.google.com/p/go-crypt.

This package implements Hybrid Public Key Encryption (HPKE) as defined in https://www.rfc-editor.org/rfc/rfc9180.html RFC 9180.

This package provides a Go implementation of JSON Web Tokens and supports the parsing and verification as well as the generation and signing of JSON Web Tokens. The currently supported signing algorithms are HMAC SHA, RSA, RSA-PSS, and ECDSA, though hooks are present for adding your own.

Various cryptographic utilities used by IPFS

Package whirlpool implements the ISO/IEC 10118-3:2004 whirlpool cryptographic hash as specified in http://www.larc.usp.br/~pbarreto/WhirlpoolPage.html.

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.