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: 2026-07-01 00:06:48 UTC
- JSON Representation
https://github.com/vineethsai/maif
Cryptographically-secure, auditable file format for AI agent memory with provenance tracking
ai ai-agent-tools ai-agents-framework cryptography
Last synced: 13 Jan 2026
https://github.com/messsimo/crypto-search
App for Crypto House which show live crypto coin information
api cryptocurrency cryptography css figma git html javascript js laravel php responsive restful-api
Last synced: 25 Feb 2026
https://github.com/hongyanwang/crypto-lab
Golang implementation of multiple crypto protocols
Last synced: 21 Feb 2026
https://github.com/cosmian/mpc_join
CipherCompute: Blind Join for Confidential Data Science and Federated Learning using MPC
confidential-computing cryptography distributed-computing multiparty-computation
Last synced: 15 Apr 2025
https://github.com/dedipresta/scala-crypto
Dependency free implementation of cryptographic hash functions for Scala and Scala.js
cryptography scala scalajs sha256
Last synced: 14 Jan 2026
https://github.com/wolframalph/dh
Diffie-Hellman key exchange implementation in Go
cryptography diffie-hellman golang
Last synced: 02 Jul 2025
https://github.com/cs-joy/cryptography
about cryptography
cryptography graphein hidden secret study to-write
Last synced: 23 Jan 2026
https://github.com/matutetandil/anyhide
Hide any data in any file. Steganography tool that never modifies the carrier - transmits only encrypted positions. X25519 + ChaCha20 with forward secrecy.
chacha20 cli covert-communication cryptography data-hiding encryption forward-secrecy plausible-deniability privacy rust security steganography x25519
Last synced: 13 Jan 2026
https://github.com/furritos/flask-simple-crypt
Flask extension based on simple-crypt that allows simple, secure encryption and decryption for Python.
cryptography decryption encryption flask python security symmetric symmetric-cryptography
Last synced: 24 Oct 2025
https://github.com/simplito/privmx-bridge
Zero-knowledge server for secure storage and transfer of E2E encrypted data.
chat communication cryptography data-transfer decryption e2ee end-to-end-encryption files messages messaging privacy privacy-protection private privmx secure security simplito storage thread zero-knowledge
Last synced: 19 Apr 2025
https://github.com/rarestype/swift-cryptography
don’t build boringssl from source
autosync cryptography swift swift-server
Last synced: 28 May 2026
https://github.com/vanhakobyan/rngcryptoservicepassgen
:barber:RNGCryptoService:barber: password generator:barber:
cryptography password password-generator rng service
Last synced: 13 Jun 2025
https://github.com/2140-dev/swiftsync
SwiftSync node and underlying crates
bitcoin cryptocurrency cryptography peer-to-peer
Last synced: 29 Aug 2025
https://github.com/maxbubblegum47/pyfind
Applied cryptography project. Unimore computer science master degree. Apple find my devices implementation in python
aes-gcm apple cryptography ecdh kdf python unimore-informatica
Last synced: 10 Oct 2025
https://github.com/carlodepieri/vcrpy-encrypt
Encrypt vcrpy cassettes so they can be safely kept under version control.
cryptography python testing unit-testing vcrpy
Last synced: 13 Oct 2025
https://github.com/ringsnetwork/whitepaper
This repo is about whitepapers of rings network, you can find tex sources and compiled files here.
crypto cryptography dht paper pos
Last synced: 18 Jan 2026
https://github.com/aead/blake2b
The BLAKE2b hash algorithm as defined in RFC 7693
blake2b blake2b-hash-algorithm cryptography go
Last synced: 15 Mar 2025
https://github.com/tteeoo/sest
🔑 A local command-line based password manager using AES-256 encryption.
command-line cryptography encryption go golang password-manager
Last synced: 17 Feb 2026
https://github.com/jedisct1/as-crypto
api assemblyscript bindings crypto cryptography wasi wasm webassembly
Last synced: 09 May 2026
https://github.com/demining/coingecko-agent-ftpupload
Coingecko & Agent Ftpupload create beautiful crypto wallet addresses, but keep the private key safe
attack bitcoin bitcoin-wallet blockchain btc cryptocurrencies cryptography ecdsa ecdsa-cryptography ecdsa-signature privatekey privatekeygenerator privatekeys secp256k1 vulnerabilities vulnerability
Last synced: 03 May 2025
https://github.com/fpoirotte/cryptal
Cryptography Abstraction Layer for PHP
abstraction crypto cryptography layer php
Last synced: 24 Mar 2025
https://github.com/demining/vulnerable-to-debian-openssl-bug-cve-2008-0166
Search for BTC coins on earlier versions of Bitcoin Core with critical vulnerability OpenSSL 0.9.8 CVE-2008-0166
attack bitcoin bitcoin-wallet blockchain btc cryptocurrencies cryptography ecdsa ecdsa-cryptography ecdsa-signature elliptic-curves elliptic-curves-cryptography privatekey secp256k1 vulnerabilities vulnerability
Last synced: 03 May 2025
https://github.com/zeyadetman/image-textsteganography
🖼 An image steganography by converting the image into text of pixels and use the LSB to hide the ciphered text that encrypted by The Caesar cipher Algorithm (Cryptography). The project decrypt the image by loading it, converting the pixels’ digits and break the LSB.
aes caesar-cipher cipher-algorithms counteributors cryptography cs-projects decryption encryption image-steganography
Last synced: 27 Sep 2025
https://github.com/null93/rsa-encryption
Implementation of the RSA encryption algorithm using big-integer algebra algorithms
cryptography rsa rsa-encryption
Last synced: 05 Sep 2025
https://github.com/qantik/ratcheted
Performance Survey of Several Ratcheted Key-Agreement and Messaging Protocols
benchmark cryptography go messaging ratchet
Last synced: 23 Mar 2025
https://github.com/damianmorozov/examplecrypt
Examples of crypting algorithms
Last synced: 30 Oct 2025
https://github.com/ph4r05/bitarray
Efficient bit array operations library for Python implemented in C
bit-manipulation bitarray cryptography python
Last synced: 14 Jan 2026
https://github.com/xannythepleb/pycrypt
A rudimentary encryption program written in Python. Plan to add a lot more functionality soon. Please note this is an unaudited hobby project! If security is vital, use Signal or PGP.
blake2b chacha20-poly1305 cryptography encryption-tool python-encryption python3
Last synced: 05 Jun 2026
https://github.com/jitendragangwar123/100-days-of-web3-challenge
This repository contains a comprehensive overview of the fundamental concepts related to Blockchain Technology that I've acquired during the 100DaysOfWeb3 challenge. It serves as a valuable resource for understanding the core principles of blockchain technology.
blockchain cryptography ethereum etherjs javascipt smart-contracts solidity web3js
Last synced: 24 Aug 2025
https://github.com/argosylabs/gubbins
Gubbins product serial number generator & validator
Last synced: 12 Jun 2025
https://github.com/lucabonamino/crypto-vdf
Cryptocurrency and Cryptographic blockchain Verifiadle Delay Functions project
cli cryptocurrency cryptography pietrzark-vdf python verifiable-delay-functions wesolowski-vdf
Last synced: 27 Dec 2025
https://github.com/miguelzacca/vigenere-encoder
Vigenere cipher encoder/decoder. (npm package)
cipher crypto cryptography decode encode encoder npm npm-module npm-package package vigenere vigenere-cipher
Last synced: 15 Feb 2026
https://github.com/rafa-kozand/random_encryption
Code that generates every time you initialize a random key that will be used to encrypt and decrypt a string. Work related to the discipline of 'Cryptography and Security of Computer Systems'.
Last synced: 27 Feb 2025
https://github.com/jitendragangwar123/ekolance-solidity-cohort-2
This repository contains Solidity programming exercises that were discussed during the Ekolance Solidity Cohort 2. It serves as a resource for learning and practicing Solidity, a programming language used for developing smart contracts on blockchain platforms like Ethereum.
blockhain-tecnology cryptography ethereum solidity
Last synced: 07 Jan 2026
https://github.com/amaitou/sectools
Welcome to the SecTools repository, a curated collection of penetration testing tools designed exclusively for educational purposes. This repository aims to provide a responsible and ethical environment for learning penetration testing techniques within legal boundaries.
cryptography cybersecurity hashing malware-development penetration-testing-tools python3 reverse-shell
Last synced: 15 May 2025
https://github.com/luffy0xcyber/cryptographie_classique
Implémentation Python des chiffrements historiques (César, Hill, Vigenère) avec explications détaillées et simples | Projet éducatif de cryptographie
cesar-cipher cesar-cypher ciphers cryptography cybersecurity education encryption hill-cipher learning-project mathematics python security vigenere-cipher
Last synced: 13 Jun 2025
https://github.com/kpdemetriou/spectral-aead
An algorithm for authenticated encryption with associated data using Speck and HMAC-SHA256.
cffi cipher ciphers cryptography decryption encryption hash hash-functions hmac message-authentication-code python sha256 speck
Last synced: 14 Jan 2026
https://github.com/M3DZIK/rust-crypto-utils
Cryptography Utils for Rust
crypto crypto-library cryptography hash hmac jsonwebtoken jwt rust rust-crate rust-lang rust-language rustlang
Last synced: 13 May 2025
https://github.com/asc8384/neural-distinguishers
Neural Distinguishers on TinyJAMBU-128 and GIFT-64
crypto cryptography deep-learning gift tinyjambu
Last synced: 07 Apr 2025
https://github.com/jasondrawdy/ecp
A lightweight, flexible, and extensible network communcations protocol created with security in mind and focuses on the productivity of both potential clients and servers.
communications cryptography encryption library networking protocol security tcp tcp-client tcp-server udp udp-client udp-server
Last synced: 05 Sep 2025
https://github.com/qtumproject/qtool
Qtool is a cli command, a JSON RPC api and a golang package that provides crypto functionalities specific for qtum blockchain
bitcoin cryptography ecdsa qtum
Last synced: 28 Apr 2025
https://github.com/messagemedia/webhooks-demo
Set of scripts to demonstrate the use of MessageMedia's webhooks
cryptography messaging sms webhooks
Last synced: 02 Apr 2025
https://github.com/danieltoader/php-crypttor
A simple php library to deal with encrypting and decrypting strings using OpenSSL or MCrypt
crypt cryptography decrypt encrypt mcrypt openssl php-crypt php-library
Last synced: 01 Sep 2025
https://github.com/i-umairkhan/ecdsa_node
Transactions via ECDSA cryptography algorithm.
cryptography ecdsa-cryptography express javascript nodejs react
Last synced: 14 Apr 2026
https://github.com/antosser/base94-rs
Base94 Encoding Library: Convert binary data to a compact text-based format using Base94 encoding. Effortlessly encode and decode data for a wide range of use cases. 🔐🔍
algorithm base94 binary-to-text cryptography development encoding rust rust-library security text-format utility
Last synced: 24 Oct 2025
https://github.com/harshildarji/locationcrypto
Encryption and Decryption of data using live location of device.
cryptography decryption encryption location position
Last synced: 14 Jan 2026
https://github.com/ausaf007/multi-party-computation
Create Ethereum wallet with multi-party validation and threshold cryptography.
cryptography java multi-party-computation shamir-s-secret-sharing-scheme shamir-secret-sharing threshold-cryptography
Last synced: 04 Oct 2025
https://github.com/mewmix/sm4-xts-openssl
openssl sm4-xts & aes-xts 256 implementations for testing
aes-256 c cryptography disk-encryption openssl sm4
Last synced: 07 Jun 2026
https://github.com/anvilco/node-encryption
RSA and AES Encryption helpers
aes cryptography encryption js node rsa
Last synced: 04 Jul 2025
https://github.com/glaukiol1/gagchain
Proof-Of-Work blockchain written in Go
algorithm bitcoin blockchain cryptocurrency cryptography database db elliptic elliptic-curve-cryptography keypairs secp256k1 tcp
Last synced: 05 Mar 2026
https://github.com/sudiptab2100/cryptographicalgorithms
Implementation of Cryptographic Algorithms of course Modern Cryptography(CSC049P1M) offered in IIT Jammu.
aes-encryption affine-cipher ceaser-cipher cryptoanalysis cryptoanalysis-algorithms cryptography des-encryption diffie-hellman-key grain-stream-cipher hill-cipher rc4-algorithm rc4-cipher rc4-encryption rsa-cryptography rsa-encryption substitution-cipher vigenere-cipher
Last synced: 07 Jul 2025
https://github.com/gotz1480/bitcoin-cryptography-ecc
Study of bitcoin elliptic curve cryptography (ECC)
bitcoin cryptography ecc-cryptography elliptic-curve-cryptography
Last synced: 07 Apr 2025
https://github.com/gotz1480/cryptography
Cryptography projects and algorithms in Python
cryptography cryptography-algorithms cryptography-library python python-cryptography python3
Last synced: 07 Apr 2025
https://github.com/filiprokita/bcrack
BCrack is a basic tool designed to crack Bcrypt hashed passwords using brute-force methods. Written in C, it highlights the importance of strong passwords and the effectiveness of Bcrypt for password hashing. Ideal for educational purposes and ethical security testing with permission.
bcrypt bruteforce c cli command-line crypt cryptography cybersecurity decryption encryption file-handling hacking hash-comparison hash-cracking password-cracking security wordlist
Last synced: 11 Feb 2026
https://github.com/davxy/cry
CRY crypto library
arithmetic bignumber cryptography mpi number-theory
Last synced: 09 Apr 2025
https://github.com/moeraorg/java-moeralib
Java library to interact with Moera decentralized social network
cryptography decentralized java java-library library maven moera social-network
Last synced: 23 Feb 2026
https://github.com/loneicewolf/ciphers-python
Cypher, Cipher, Cyphers, Ciphers, cryptography, encryption, obfuscation, enciphering, deciphering - in python3
alphabet cipher cryptography encryption jupyter-notebooks python substitution-cipher
Last synced: 23 Apr 2025
https://github.com/antonmeep/system_random
Minimal Ada library to retrieve random data from system sources
Last synced: 23 Feb 2026
https://github.com/dinochiesa/apigee-custompolicy-rsacrypto
This is a custom Apigee policy, implemented in Java, that performs RSA Encryption and Decryption of data or message payloads, or RSA signing of data or message payloads, or verification of such signatures.
Last synced: 10 Jun 2025
https://github.com/ytisf/aasdfg
Create a truly random, en-masse, random seed using your webcam's noise. Locally.
cryptography entropy random-generation ssl-certificates
Last synced: 14 Jun 2025
https://github.com/dorssel/dotnet-xmss
.NET 8 implementation of XMSS.
cryptography dotnet nist-sp-800-208 post-quantum-signature rfc-8391 xmss
Last synced: 09 Apr 2025
https://github.com/amirhosein2004/secure-token
package secure-token
cryptography pypi-packages python secure-token
Last synced: 13 Apr 2026
https://github.com/saahen-sriyan-mishra/camouflage-shield
A full stack windows form application for sensitive image storing in encrypted format using symmetric key cryptography, and user data storing/securing using hash algorithms.
3des-encryption aes-encryption base64-encoding cryptography csharp cybersecurity des-encryption-decryption encryption hashing-passwords image-processing md5-hash rc2-encryption rijndael-algorithm sha1-hash sha256-hash sha384-hash sha512-hash windows-form-application
Last synced: 07 May 2025
https://github.com/thomasdesr/minisign-action
Github action to sign and verify minisign/signify signatures
crypto cryptography github-actions gpg minisign pgp signify
Last synced: 05 Jan 2026
https://github.com/chase-moskal/pastesafe
open encryption web app
asymmetric-encryption crypto cryptography
Last synced: 17 Aug 2025
https://github.com/myusuf3/siapaperwallet
Create Sia Paper Wallets
cryptography paperwallet sia siacoin
Last synced: 05 Jan 2026
https://github.com/romainbou/ise2ee
Is it End-to-end Encrypted?
cryptography encryption messaging
Last synced: 14 Oct 2025
https://github.com/jcbritobr/libnacl
Rust wrapper API for libnacl - https://nacl.cr.yp.to/
api cryptography nacl wrapper-api
Last synced: 14 Oct 2025
https://github.com/salvacorts/fr-chat-client
:rocket: P2P Chat with asymmetric encryption
asymmetric-cryptography cryptography p2p-chat python rest-api rsa sockets tkinter
Last synced: 15 Mar 2025
https://github.com/ml3m/cryptography-algorithms-exploration
implementations of various cryptographic algorithms, including both symmetric and asymmetric encryption, hashing, and key exchange techniques
blowfish-algorithm chacha20 cryptography cryptography-algorithms cryptography-concepts encryption-decryption rsa-cryptography
Last synced: 18 Jun 2025
https://github.com/defucc/hashkeys
Reactive Noble cryptography for p2p identity
composable cryptography encryption js noble-curves signing vue
Last synced: 20 Jan 2026
https://github.com/sepandhaghighi/integer-squaring
Integer Squaring Algorithm
algorithm cryptographic cryptography integer-arithmetic integer-squaring multiplication product-scanning squaring
Last synced: 15 Oct 2025
https://github.com/nulltea/nulltea
0️⃣ ☕️ - research engineer
blockchain cryptography golang rust
Last synced: 14 Oct 2025
https://github.com/abdellatif-temsamani/cryptjs
`cryptjs` is a JavaScript/TypeScript library that brings cryptographic functionality from Dart to the web
crypt-lib cryptography hash javascript password-hashing security sha-256 sha-512 sha512 typescript
Last synced: 22 Jan 2026
https://github.com/skyf0l/discrete-logarithm
Fast discrete logarithm solver in Rust
cryptography discrete-logarithm number-theory
Last synced: 11 Oct 2025
https://github.com/dev-sire/algopython
This repository serves as a comprehensive collection of Python code related to data structures, algorithms, and cryptography. It includes solutions to daily LeetCode problems and various cryptographic implementations
cryptography dsa-algorithm leetcode-python python3
Last synced: 10 Apr 2025
https://github.com/pirate-emperor/enigma
Enigma is a Java-based cryptographic system that integrates symmetric (AES, DES, Blowfish), asymmetric (Diffie-Hellman, RSA, DSA), and hashing algorithms (MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512). It ensures data confidentiality, integrity, and authentication with modern cryptographic standards.
aes asymmetric-algorithm authentication blowfish cryptography data-integrity diffie-hellman encryption encryption-decryption enigma hashing java md5 rsa security sha-256 symmetric-algorithms
Last synced: 27 Jan 2026
https://github.com/mohitrajain/rootctf
CTF ( Capture the flag a cyber security event ) .
cryptography ctf forensics pwning reverse-engineering steganography system-administration web-exploitation
Last synced: 13 Oct 2025
https://github.com/ishanoshada/spiral-cipher
A spiral cipher implementation for text encryption and decryption
cipher crypto cryptography encryption pypi python security spiral spiral-cipher
Last synced: 18 Feb 2026
https://github.com/hmasila/crypto-php
crypto cryptocurrencies cryptocurrency cryptocurrency-exchanges cryptography
Last synced: 13 Oct 2025
https://github.com/gunh0/whitebox_cryptanalysis
🔒 Whitebox Cryptographic Code Example
Last synced: 25 Mar 2025
https://github.com/nulltea/contangle-zkcp
Universal Zero Knowledge Contingent Payments (on hold)
bitcoin cryptography ethereum payment zero-knowledge
Last synced: 19 Apr 2026
https://github.com/architectv/information-security
🛸 BMSTU Information security course (2020) (semester 7)
bmstu cryptography des digital-signature enigma go golang ics7 information-security lzw lzw-compression rsa
Last synced: 16 Oct 2025
https://github.com/volhovm/ocd-tasks
Solutions for the "An Introduction to Mathematical Cryptography" textbook by Hoffstein, Pipher, Silverman
Last synced: 16 Oct 2025
https://github.com/harryr/stegive
Steganographic encrypted archive
archive cryptography encryption steganography
Last synced: 27 Oct 2025
https://github.com/z1skgr/rsa-crypto
Cryptographic algorithm using openssl
bignum cryptography encryption-decryption hash openssl public-key rsa
Last synced: 27 Jan 2026
https://github.com/davidbuchanan314/roll13
an (unfinished) TLSv1.3 client in pure python, hand-rolled from first principles.
aes aes-gcm cryptography hmac hmac-sha256 python python3 secp256r1 sha256 tls tls13
Last synced: 22 Aug 2025
https://github.com/juri/fernet
Fernet cryptography format implementation in Swift
Last synced: 12 Oct 2025
https://github.com/chinnanj666/message-encryption-decryption
This Python-based application provides a graphical user interface (GUI) for encrypting and decrypting messages using AES encryption.
aes algotithms cryptography python thinker
Last synced: 17 Jun 2025
https://github.com/drazail/react-hash
React library of cryptography standards
cryptography hash react reactjs
Last synced: 12 Mar 2026
https://github.com/samuel-lucas6/padme.net
A .NET implementation of PADMÉ padding.
crypto cryptography padding padme padme-padding
Last synced: 23 Jan 2026
https://github.com/seigtm/rsa
A simple C# code that allows you to encrypt and decrypt huge numbers using the RSA algorithm.
biginteger bigintegers cryptography csharp encryption rsa rsa-algorithm rsa-cryptography rsa-encryption rsa-key-encryption
Last synced: 20 Apr 2025
https://github.com/h-alice/python-ecc-keyexchange
A simple PoC for ECC key exchange in Python.
cryptography elliptic-curve-cryptography python security
Last synced: 12 Oct 2025
https://github.com/sheroz/rsa
Samples of RSA (Rivest–Shamir–Adleman) asymmetric cipher implementations in Rust
crypto cryptography public-key-cryptography rsa rsa-cipher rsa-cryptography rsa-cryptosystem
Last synced: 04 Jan 2026
https://github.com/newyaroslav/crypto-json
C ++ library for JSON encryption with COMMENTS
cryptography json json-parser strip-json-comments
Last synced: 15 May 2026
https://github.com/tacitusxi/leskodex
LeskoDEX is a DEX with a decentralized orderbook and a custom ERC-20 ESKO token. Each user can connect to the DEX via Metamask and trade the ETH/ESKO pair. A custom chart for technical analysis is available.
crypto cryptocurrency cryptocurrency-exchanges cryptography currency dapp defi erc-20 eth ethereum smart-contracts solidity solidity-dapps solidity-language token
Last synced: 26 Oct 2025
https://github.com/qnighy/crypt-impl-rust
cryptography hash-algorithm rust tls
Last synced: 31 Mar 2025