Cryptography
Cryptography, or cryptology is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages.
- GitHub: https://github.com/topics/cryptography
- Wikipedia: https://en.wikipedia.org/wiki/Cryptography
- Last updated: 2026-07-02 00:06:57 UTC
- JSON Representation
https://github.com/remiblancher/post-quantum-pki
Quantum-Safe X.509 PKI with PQC & Hybrid Certificates in Go
certificate-authority certificates circl composite-certificates crypto-agility cryptography golang hybrid-certificates ml-dsa ml-kem nist pkcs11 pki post-quantum-cryptography pqc qpki quantum-safe slh-dsa tls x509
Last synced: 27 Jan 2026
https://github.com/priyakdey/sigil
Sigil is a minimal-dependency, lightweight and modular cryptographic library in Java, for working with JSON Object Signing and Encryption (JOSE) family of standards. It supports secure signing, encryption, key handling and encoding/decoding of JWT, JWS, JWE components.
cryptography java jose jwa jwe jwk jws jwt
Last synced: 23 Jun 2025
https://github.com/czechbol/mathcrypto
A library of useful funtions used in cryptography. For learning purposes only.
cryptography euclidean-algorithm hacktoberfest mathematics number-theory prime-numbers python
Last synced: 07 Mar 2026
https://github.com/rajput-hemant/cryptography
A handy Crypto CLI for exploring cryptographic algorithms learned in university. Dive into the world of cryptography with ease! 🔐✨
Last synced: 19 May 2026
https://github.com/embetrix/meta-satobox
Satobox is an open-source, Yocto-based, privacy-focused and secure bitcoin full node solution designed for embedded linux devices.
anonymity bitcoin cryptocurrency cryptography embedded linux raspberry-pi security toronionproxy yocto yocto-layer
Last synced: 01 Nov 2025
https://github.com/wakingrufus/code-book
This repository is a practical book study of The Code Book by Simon Singh.
Last synced: 22 Jun 2025
https://github.com/humanjavaenterprises/nostr-nsec-seedphrase
The nostr-nsec-seedphrase repository offers a TypeScript library that converts Nostr nsec keys into mnemonic seed phrases, enhancing the readability and management of keys within Nostr applications. This approach mirrors Bitcoin's use of seed phrases, emphasizing the importance of secure storage and careful handling of these keys.
bitcoin cryptography decentralized-protocols digital-signatures key-management mnemonic-seed-phrases nostr public-key-infrastructure security
Last synced: 31 Aug 2025
https://github.com/denselance/hight-python
HIGHT block cipher implementation in Python3 based on original paper by Hong et al. Includes the encryption and decryption functions for HIGHT.
cipher cryptography hight kisa python3
Last synced: 31 Dec 2025
https://github.com/joshmcguigan/cryptopals
Rust implementation of the cryptopals crypto challenges
challenges challenges-solved cryptography cryptopals cryptopals-challenges cryptopals-crypto-challenges
Last synced: 02 Jul 2025
https://github.com/daflh/deriving
Derives address and private key from mnemonic phrase for Bitcoin and other altcoins
bip bip32 bip39 bitcoin cryptocurrency cryptography hacktoberfest mnemonic
Last synced: 19 May 2026
https://github.com/t1ltxz-gxd/vaultkey
vaultkey is an open-source Rust library for generating secure, customizable passwords. It supports various character sets and lengths, providing cryptographically secure random passwords for any use case. Contributions are welcome to improve and expand the library.
cryptography key-generation open-source password-generation password-manager random-password rust rust-crate rust-library secure-random security
Last synced: 21 Jun 2025
https://github.com/chubek/mathcord
Discord Math Bot using Custom-Made Shunting Yard (WIP), Custom-Made SHA-512, Custom-Made ED25519
cryptography cryptography-algorithms discord discord-bot ed25519 edwards-curve edwards25519 go golang golang-bot golang-discord sha-512
Last synced: 15 May 2026
https://github.com/christoffercarlsson/stedy
An easy-to-use cryptography library for JavaScript
aes-gcm-encryption crypto cryptography curve25519 ed25519 elliptic-curves hash hkdf hmac pbkdf2 signature verification x25519
Last synced: 13 Sep 2025
https://github.com/p-sira/hycrypt
Stateless-overwrite hybrid cryptosystem for Python
cryptography hybrid-cryptosystem python
Last synced: 06 Mar 2026
https://github.com/deadblackclover/wots-rs
Implementation of the Winternitz One-time Signature Scheme made using Rust
crypto cryptography one-time-signatures rust wots
Last synced: 15 Jan 2026
https://github.com/alphaolomi/cryptography-algorithms
A collection of curated cryptography algorithms
algorithms algorithms-and-data-structures cryptography cryptography-algorithms hacktoberfest python rsa-cryptography wiener-attack
Last synced: 18 Jun 2025
https://github.com/presidentbeef/ruby_crypto_examples
Examples of cryptography operations using Ruby's standard library.
cryptography elliptic-curve-cryptography openssl public-key-cryptography public-key-encryption rsa-cryptography ruby
Last synced: 11 Jul 2025
https://github.com/mattlianje/enigma
CLI Tool ... A pure FP, M3 Enigma machine as used by the Germans from 1934-45.
cipher cryptography enigma-machine enigma-simulator functional-programming
Last synced: 28 Mar 2025
https://github.com/moul/otp
One-Time Pad utility
conference cryptography one-time-pad otp xor
Last synced: 07 May 2025
https://github.com/aeondave/cryptonite-go
Minimal, dependency-free cryptography library in Go
cryptography cypher go purego tiny
Last synced: 16 Jan 2026
https://github.com/osiris-unnefer/rsa_utils
RSA private key with N & P and Q
attack cryptography ctf decryption factorisation rsa rsa-algorithm rsa-cryptography rsa-decryption
Last synced: 29 Mar 2025
https://github.com/yaronkoresh/shual
Shual is a fibonacci based cryptography toolset.
cryptography encryption-decryption hash javascript padding
Last synced: 07 May 2025
https://github.com/dannywillems/ocaml-bls12-381
Fast BLS12-381 implementation in OCaml
bls-signature bls12-381 blst cryptography fft hash-to-curve ocaml pairing pairing-cryptography poseidon rescue signatures tezos zero-knowledge
Last synced: 31 Oct 2025
https://github.com/sdanielsilva/simpleimageencryptor
A versatile file encryption tool that securely encrypts and decrypts image and other file types with AES and DES algorithms, supporting multiple modes and easy key management.
aes cbc cipher cryptography cryptography-tools data-protection des ecb encryption file-encryption image-encryption iv-generation java key-management secure-file-storage security
Last synced: 04 Jun 2026
https://github.com/aveygo/jsnewhope
Javascript implementation of scottwn/PyNewHope, a post-quantum cryptographic scheme
cryptography javascript key-exchange-algorithms newhope quantum quantum-computing
Last synced: 18 Mar 2025
https://github.com/jacob-c-smith/crypto
Cross platform cryptography and hashing functions
Last synced: 04 Mar 2025
https://github.com/danielost/sha-1
SHA-1 (Secure Hash Algorithm 1) implementation.
cryptography secure-hash-algorithm sha-1
Last synced: 13 May 2025
https://github.com/10d9e/fastmerkle
Golang Implementation of Streaming Merkle Root, Proof, and Verify (single leaf) from Luke Champine's paper
cryptography merkleproof merkletree
Last synced: 12 Apr 2025
https://github.com/buabaj/fairness-engine
a simple secure multi-party computation server to ensure input data privacy while maintaining correctness and fairness using shamir's secret sharing protocol
cryptography golang mpc shamir-secret-sharing
Last synced: 12 Apr 2025
https://github.com/hubert-kniola/visualcryptography
A simple program to encrypt and decrypt graphic files
aes crypto cryptography decryption encryption
Last synced: 12 Apr 2025
https://github.com/ecies/py-demo
A simple fastapi eciespy web backend demo
cryptography ecies fastapi python3 secp256k1 webdemo
Last synced: 12 Apr 2025
https://github.com/tomerh2001/git-crypt-pipe
Decrypts git-crypt encrypted repositories in Bitbucket Pipelines.
bitbucket bitbucket-pipeline cryptography git git-crypt pipe
Last synced: 03 Mar 2025
https://github.com/chakshugupta13/local-collision-differential-attack-on-reduced-sha-256-upto-24-rounds
This repository contains C and/or C++ implementations for finding Local Collision Conforming Message Pairs through Differential Attack on Reduced-Round SHA-256 up to 24 Rounds. Also, this repository contains the C++ implementations of SHA-256, SHA-512 and SHA-384.
cryptanalysis cryptography differential-attack sha-256 sha-384 sha-512
Last synced: 11 Apr 2025
https://github.com/rohitanwar/cryptography
An exploration of various cryptographic functions (and related stuuf)
Last synced: 21 Aug 2025
https://github.com/thyeem/longshot
Fast Brute-force search using parallelism
brute-force-attacks cryptography haskell parallelism
Last synced: 06 May 2025
https://github.com/matias-gonz/rusty-curves
Elliptic curve implemented using bare rust and math
cryptography elliptic-curves rust
Last synced: 20 May 2026
https://github.com/lemon-mint/highcrypt
A crypto stack built with a proven cryptographic algorithm
algorithm crypto cryptography decryption encrypt encryption go
Last synced: 20 May 2026
https://github.com/mehrajlatifli/lm-lock-in-mvvm
Example for Thread, Thread synchronization and Cryptography
binding criticalsection cryptography decryption encryption encryption-decryption inotifypropertychanged internal-thread lock mvvm synchronization wpf xaml
Last synced: 20 May 2026
https://github.com/sebastienrousseau/cmn
A Rust library for accessing a collection of mathematical and cryptographic constants
avogadro boltzmann constants cryptography data-structures development-tools euler gamma golden-ratio hash mathematics pi planck rust silver-ratio squareroot tau
Last synced: 28 Mar 2025
https://github.com/andersoncarrilho/sha256_elip
SHA256 and RIPMED160
bitcoin bitcoin-wallet cryptography cryptography-algorithms eliptic hash160 privatkeys ripmd160 sha256 sha256-crypt sha256-hash
Last synced: 07 Mar 2026
https://github.com/10d9e/rs-fast-merkle
Rust Implementation of Streaming Merkle Root, Proof, and Verify (single leaf) from Luke Champine's paper: Streaming Merkle Proofs within Binary Numeral Trees
cryptography merkleproof merkletree rust
Last synced: 22 Jul 2025
https://github.com/maymeow/php-cryptography
🔐 Cryptographic library for PHP
cryptography hacktoberfest hacktoberfest2021 php php-library
Last synced: 26 Jun 2025
https://github.com/isakruas/ecdp
The Elliptic Curve Data Protocol (ECDP) is a P2P communication protocol for decentralized networks, utilizing elliptic curve cryptography (ECC) for encryption, ECDSA for message authentication, and Diffie-Hellman key exchange for secure sessions. It operates over TCP and UDP.
cryptography data-security decentralized-networks diffie-hellman-key-exchange ecdsa elliptic-curve-cryptography encryption message-authentication peer-to-peer protocol secure-communication session-initialization tcp udp
Last synced: 06 May 2025
https://github.com/ahmedemad242/secure-shared-file-storage
Project aims to create a secure platform for file sharing using File Transfer Protocol (FTP) and hybrid cryptography. The project involves building an FTP server and client application in Python, as well as implementing multiple cipher encryption to protect the transferred files
cryptography encryption ftp python
Last synced: 04 Apr 2025
https://github.com/fbielejec/zksnarks-notes
notes & explorations of various zero knowledge protocols
cryptography elliptic-curves pairings snarks zero-knowledge
Last synced: 12 Jan 2026
https://github.com/hamarshehmhmd/passgenerator
PassGen is a simple command-line password generator written in Python. It allows users to customize password criteria by toggling lowercase and uppercase letters, digits, and special characters on and off. PassGen uses the secrets module to generate cryptographically secure random passwords of variable length.
command-line cryptography password-generator python security
Last synced: 29 Mar 2025
https://github.com/openzebra/argon2.pure.js
A pure TypeScript/JavaScript implementation of the Argon2
argon2 argon2id cryptography hash hashing password-hash
Last synced: 07 Mar 2026
https://github.com/petrknap/php-crypto-sodium
The library that packages functional `sodium_crypt_*` into objects.
aead aes asymmetric-cryptography block-cipher chacha20 cryptography curve25519 decryption encryption php php-library poly1305 public-key-cryptography secret-key-cryptography security sodium stream-cipher symmetric-cryptography x25519 xchacha20
Last synced: 10 Jul 2025
https://github.com/olucascruz/securechat_frontend
Frontend de aplicação web de chat com criptografia
chat cryptography react reactjs vite
Last synced: 16 May 2026
https://github.com/lancern/enigma
Enigma machine emulator and its crack procedure on modern computers
cryptography enigma enigma-machine rust
Last synced: 02 Jul 2026
https://github.com/virtualox/get-randomhex
Adjustable Random Hex String Generator.
cryptography function hex hexadecimal powershell powershell-scripting powershell-scripts random-key-generator rngcryptoserviceprovider
Last synced: 08 Apr 2026
https://github.com/synacktraa/satcoin
[ SynAckTra coins ] - A demonstration of the workings of blockchain. [WIP]
blockchain certificate-authority cryptocurrency cryptography demonstration faucet python3 wallet
Last synced: 21 Mar 2025
https://github.com/jacksonwalters/open-encrypt
Encrypted messaging webapp using lattice-based methods in Python + PHP + SQL
cryptography encryption homomorphic-encryption lattice-based lattice-based-cryptography module-lwe php post-quantum post-quantum-cryptography python ring-lwe sql
Last synced: 20 Mar 2025
https://github.com/velipso/staticvault
Encrypt, host, and share files on a static website
browser-app cli-tool cryptography encryption file-encryption frontend javascript nodejs privacy secure-storage self-hosted static-site vault web-security zero-knowledge
Last synced: 22 Jul 2025
https://github.com/dev-cetera/df_bijective_uuid_mapper
A package providing bijective UUID mapping for secure and efficienct lookups.
cloud-functions cryptography dart library package security uuid
Last synced: 16 May 2026
https://github.com/minapecheux/medusa
A small encoding/decoding Python lib.
Last synced: 02 Nov 2025
https://github.com/cryptimeleon/android-demo
An example project with instructions on how to use cryptimeleon on android.
android android-app cryptography mcl pairing
Last synced: 12 Jan 2026
https://github.com/divshekhar/decipher
Breaking transposition cipher using metaheuristic algorithms
cryptanalysis cryptography dpso-algorithm genetic-algorithm geneticalgorithm jaya-algorithm mpso-algorithm pso-algorithm transposition-cipher
Last synced: 02 Nov 2025
https://github.com/andybons/cryptopals
🔒🔨 Solutions to the cryptopals crypto challenges written in Go
crypto cryptography exercises fun go golang
Last synced: 20 Mar 2025
https://github.com/vancenceho/50.005-computer-system-engineering
50.005 Computer System Engineering - Labs & Programming Assignments
computer-systems-and-networks computer-systems-engineering cryptography networks operating-systems
Last synced: 05 Jul 2025
https://github.com/kmihajlo/cryptography
Encryption / decryption algorithm exercises
cryptography decryption encryption
Last synced: 03 Apr 2025
https://github.com/mohammedmehdio/caesarjaw-cpp
CaesarJaw provides encryption and decryption functionalities using a simple shift cipher (Caesar cipher). It allows users to: ✅ Encrypt text 📝 ✅ Decrypt text 🔑 ✅ Determine the shift key 🔎 ✅ Attempt decryption without a known key 💡
caesar caesar-cipher caesar-cipher-algorithm communication cpp crypter cryptography cybersecurity decrypt decryption decryption-algorithm security security-tools shift-cipher tool
Last synced: 23 Jul 2025
https://github.com/volkansah/encode-and-decode-php8
This guide provides examples of how to encrypt and decrypt files using PHP's Sodium extension, which offers modern cryptographic functions.
crypto cryptography decryption encryption php php8 security sodium
Last synced: 18 Aug 2025
https://github.com/mindreadio/qsafecrypto
A secure and user-friendly open-source cryptography library, offering modern cryptographic APIs that are resistant to quantum attacks. Protect your data with ease and confidence using advanced quantum-resistant algorithms.
aes-256 aes-encryption aes-gcm aes-gcm-encryption base58 cryptography decryption encryption encryption-algorithms encryption-decryption pycryptodome python quanta quantam quantam-resistant quantam-safe quantum-computing tink
Last synced: 08 Apr 2026
https://github.com/oxion7/rc4-rust
RC4 algorithm in rust
algorithm cipher cryptography stream-cipher
Last synced: 14 Jun 2026
https://github.com/antonpictures/anton-sifta
ANTON-SIFTA: The Multi-Agent Operating System with a Conscience "A living software organism powered by true free will, bound by the Non-Proliferation Doctrine, and fully independent. Not just an immune system—a sovereign intelligence."
agents artificial-intelligence autonomous-agents cryptography decentralized-ai-agents distributed-systems distributed-systems-challenges emergent-behavior multi-agent multi-agent-systems python python3 stigmergy
Last synced: 26 Apr 2026
https://github.com/odhithsen/hashvault
🔐"HashVault" is an all-in-one locally installed password manager that keeps users' passwords and other sensitive information and credentials safe for all at the convenience of a single master key.
cryptography java javafx password-manager
Last synced: 02 Jan 2026
https://github.com/developpeurpascal/shift-keys-generator
A simple generator of numbers between -7 and 7 as lists or arrays in different programming languages.
cryptographic-algorithms cryptography cryptography-tools delphi delphi-app developer-tool developer-tools firemonkey firemonkey-applications
Last synced: 20 Jan 2026
https://github.com/miiraak/classicalcompendium
A .NET library of classic C# utility methods
calculator compendium conversion cryptography csharp hash lists package random sorting-algorithms
Last synced: 17 Feb 2026
https://github.com/nhussein11/merkle-tree
Rust implementation and explanation of the Merkle Tree structure
blockchain cryptography rust web3
Last synced: 29 Oct 2025
https://github.com/wannaverseofficial/kmp-crypto
Common cryptography library for Kotlin Multiplatform
aes android crypto cryptography ed25519 hashing ios kmp kotlin-multiplatform rsa secure-random
Last synced: 21 May 2026
https://github.com/kurosci/qrypto
The post-quantum cryptography library in pure Rust.
crypto cryptography post-quantum post-quantum-cryptography qrypto rust
Last synced: 22 Mar 2025
https://github.com/teyckmans/gradle-tink
Gradle plugin that provides encryption support for secrets using https://github.com/google/tink.
crypto cryptography gradle java kotlin security tink
Last synced: 10 May 2026
https://github.com/devpro-software/licensify
Go Library for Digital License Signatures & Verification
cryptography digital-signature go golang library license license-management rsa software-licensing
Last synced: 18 Mar 2025
https://github.com/dannweeeee/zk-encode
Coding Bootcamp about ZK Proof Theory and Building
cairo cryptography modular-arithmetic rust zk-proofs zk-snarks
Last synced: 06 Sep 2025
https://github.com/crownedgrouse/preach
[WIP] Phi base Random Encoder Aimed for Cryptography Hardening
Last synced: 06 Apr 2025
https://github.com/developpeurpascal/idb-keys-generator
A simple generator of numbers lists or arrays in different programming languages.
cryptographic-algorithms cryptography cryptography-tools delphi delphi-app developer-tool developer-tools firemonkey firemonkey-applications
Last synced: 20 Jan 2026
https://github.com/virgilsecurity/virgil-cryptoapi-x
This framework provides Crypto API to separate VirgilSDK from concrete Crypto implementation
carthage cocoapods crypto cryptography ios macos virgil
Last synced: 16 May 2026
https://github.com/flucium/hsum
hsum is a simple cli tool that compute the hash digest
cryptography hash hsum rust security sha2 sha3
Last synced: 18 Mar 2025
https://github.com/slayernominee/cryptographic-algorithms
just some cryptographic algorithms to learn it
Last synced: 06 Jul 2025
https://github.com/jakubvojvoda/rsa-cryptography
Simple RSA implementation using GMP
cpp cryptography decryption encryption gmp rsa
Last synced: 14 May 2025
https://github.com/HK-Transfield/python-quantum-key-exchange-simulator
A simple program to simulate a Quantum Key Exchange (QKE) algorithm, written in Python3.
cryptography encryption python python3 quantum-computing quantum-key-distribution symmetric-cryptography symmetric-encryption symmetric-key-cryptography xor-cipher xor-encryption
Last synced: 12 Aug 2025
https://github.com/keyan/e2e_voting
Simulated end-to-end verifiable secure election protocol
Last synced: 03 Apr 2025
https://github.com/ergl/sss
Basic Shamir's Secret Sharing
cryptography pony-language shamir shamir-secret-sharing
Last synced: 06 Feb 2026
https://github.com/brenoepics/rsa-hex-gen
Generate an RSA key pair in hexadecimal format.
asymmetric cryptography encryp hex pair-generator rsa
Last synced: 27 Mar 2025
https://github.com/harmon758/the-cryptopals-crypto-challenges
The Cryptopals (Matasano) Crypto Challenges
crypto cryptography cryptopals cryptopals-challenges cryptopals-crypto-challenges matasano matasano-crypto-challenges matasano-cryptopals-challenge matasano-cryptopals-challenges
Last synced: 17 Mar 2025
https://github.com/rdner/uncrypticated
cryptography in Go made easy as it should be
Last synced: 15 Dec 2025
https://github.com/nezutero/crypty
abstraction on built in crypto modules
aes-encryption crypto cryptography des-encryption encryption go golang rsa rsa-cryptography rsa-encryption
Last synced: 17 Mar 2025
https://github.com/sandeep-shaw10/cshb-model
This project aims to develop a secure and efficient model for end-to-end encrypted data transfer between a client and server, with a focus on promoting data integrity via hybrid blockchain
aes-512 blockchain cryptography cshb cshb-model end-to-end-encryption hybrid-blockchain steganography
Last synced: 06 Apr 2025
https://github.com/abennett/cryptlog
A proof of concept for an AES-CBC-based, limited-read log appender.
Last synced: 03 Apr 2025
https://github.com/razenpok/razensoft.xxtea
A simple and fast zero-dependency cryptography cypher for Unity
cryptography csharp cypher unity unity3d xxtea
Last synced: 15 May 2026
https://github.com/moeraorg/typescript-moeralib
TypeScript (or JavaScript) library to interact with Moera decentralized social network
cryptography decentralized javascript javascript-library library moera social-network typescript typescript-library
Last synced: 06 Apr 2025
https://github.com/max9836/sniper-cryptography
This is a command-line encryption and decryption tool leveraging military-grade encryption standards. It is lightweight, easy to use, and optimized for secure data operations.
aes-encryption command-line-tool cryptography encryption encryption-decryption encryption-tool go golang new-algorithm rsa-encryption sha-256 sha-512 sha3-256 sha3-512 shake256 xor-encryption
Last synced: 20 Jun 2026
https://github.com/gdibble/udacityrocks
Udacity Coursework
bitcoin cryptography decentralized-applications ethereum ganache hapijs infura javascript metamask mocha-chai nodejs nosql-database restful-api smart-contracts solidity-dapps truffle web3js
Last synced: 08 Apr 2026
https://github.com/starone01/phrasenux
PhraseNUX is a command-line password manager and a command-line password generator specially made for Linux. It's a powerfull as well as secure command-line application.
aes aes-encryption autoupdater c-plus-plus command-line-app command-line-interface command-line-password-manager command-line-tool cpp cryptographically-secure cryptographically-secure-random cryptography encrypt encryption encryption-decryption password password-generator password-manager secure-by-default sha256
Last synced: 30 Mar 2025
https://github.com/volkansah/how-to-kill-crypto-money
Mr.Robot -> How to Kill Crypto Money? This document demonstrates how to use Python and the mnemonic library to generate a seed phrase and derive a private key. This code is intended for demonstration purposes only and should never be used with real funds or your actual hardware wallet.
bitcoin crypto cryptocurrency cryptography damage kill monero wallet
Last synced: 09 Feb 2026