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: 2026-06-22 00:06:56 UTC
- JSON Representation
https://github.com/tankerhq/sdk-python
Tanker Python SDK - mirror of https://gitlab.com/TankerHQ/sdk-python
cryptography encryption end-to-end privacy python sdk security tanker
Last synced: 09 Sep 2025
https://github.com/cristinemirror/zyra-crypto-wallet-mnemonic-seed-phrase-balance-checker
This repository features Zyra, a crypto wallet tool that includes functionality for checking balances using mnemonic seed phrases. It allows you to securely manage and verify cryptocurrency balances associated with various wallets.
balance balance-checker bip39 bitecoin blockchain cold-wallet crypto crypto-wallet cryptography ethereum hardware-wallet keypair mnemonic mnemonic-phrase seed seed-phrase wallet wallet-checker
Last synced: 24 Oct 2025
https://github.com/phantom0004/krypt0s-ransomware_poc
KRYPTOS is a sophisticated Python-based ransomware proof of concept (POC) designed for educational purposes. It encrypts files on Windows machines, focusing on persistence and stealth. Additionally, it includes a fake ransomware screen resembling WannaCry, with all information being fictional.
aes cryptography educational encyrption learning malware poc prevention proof-of-concept python ransomware ransomware-builder simulation stealth teaching testing virtual windows windows-10 windows-11
Last synced: 27 Oct 2025
https://github.com/tallesl/net-Hash
A password hasher.
cryptography csharp dot-net hash nuget password pbkdf2 salt
Last synced: 11 Aug 2025
https://github.com/geniuszly/gendehasher
Optimized code for decrypting hashes. It works 100 times faster than others
authme authme-sha256 cryptography cybersecurity decryption dehash dehasher ethical-hacking gendehasher hash-algorithms hash-cracking hash-decryption md5 password-recovery penetration-testing python security-tools sha256
Last synced: 13 Apr 2025
https://github.com/dimensiondev/ntge
cli crypto cryptography encryption rust rust-library
Last synced: 06 Apr 2025
https://github.com/olivier-true/reverse-shell
A Simple Reverse Shell TCP End-To-End Encrypted Made In C#
backdoor cryptography cs cyber-security dotnet-7-0 hacking network post-exploitation powershell rat remote-access remote-access-tool reverse-shell shell tool windows-10
Last synced: 27 Jun 2025
https://github.com/mmertgunduz/sub64
sub64 is a text encryption/decryption program
c-language cryptography encryption gcc imperative-programming terminal-based text-cryptography
Last synced: 05 May 2025
https://github.com/president-xd/cryptix
The Cryptix a powerful python library which provides decryption functions for various ciphers. Below are examples demonstrating how to use the decryption functions for different ciphers included in the package.
cryptography cryptography-algorithms cryptography-library cryptography-project cryptography-tools decoder decoders decryptor decryptor-hash library
Last synced: 07 Mar 2026
https://github.com/sebastienrousseau/crypto-service
The Crypto Service Suite is a set of products that performs common cryptographic operations securely and efficiently. 🔐
crypto-api crypto-cli crypto-library crypto-server crypto-service cryptography cryptoservice decryption decryption-tool ecc ecc-cryptography ecc-key-encryption encryption encryption-tool openpgpjs rfc4880 rsa rsa-cryptography rsa-decryption rsa-key-encryption
Last synced: 29 Oct 2025
https://github.com/siyovush-hamidov/hamming-codes-8-4
🔐 This project implements the Hamming Code 8-to-4 algorithm for error detection and correction during information transmission, capable of handling one mistake
Last synced: 14 Apr 2025
https://github.com/happenslol/xkcdpass
Secure random password generation library in go. Inspired by https://xkcd.com/936/
cryptography generator password random xkcd
Last synced: 18 Jun 2026
https://github.com/rednblkx/dash_live_decrypt_proxy
A Simple DRM(CENC) decrypting script for DASH manifests of "dynamic" type
cryptography dash drm ffmpeg mp4 proxy video
Last synced: 10 Jul 2025
https://github.com/martinpaljak/cdoc
Command line utility for encrypting and decrypting CDOC files (DigiDoc Crypto alternative)
cdoc cli cryptography java smartcard utility
Last synced: 14 Apr 2025
https://github.com/rarimo/tss-svc
Threshold signature producer service that performs signing of cross chain operations
cryptography ecdsa go threshold-signature
Last synced: 10 Apr 2025
https://github.com/xeroxxhah/l0ck
Ransomeware written in python
cryptography cryptolocker ransomware
Last synced: 21 Jun 2025
https://github.com/ispique/data-converter
A Python script that includes various functions for data conversion, encoding, and decoding, as well as cryptographic operations such as RSA, AES, and Triple DES encryption and decryption.
3des aes aes-encryption ascii base58 base64 binary cryptography cryptography-algorithms data-converter hexadecimal offset python python-script rot13 rot13-cipher rsa rsa-cryptography string-converter triple-des
Last synced: 13 Apr 2025
https://github.com/python273/pwngrid-api
Pwnagotchi's Pwngrid API client (⌐■_■)
cryptography pwnagotchi python
Last synced: 07 May 2025
https://github.com/lynk4/picoctf
PicoCTF Write-ups......
binary-exploitation bufferoverflow cryptography ctf ctf-writeups pico-ctf-writeups picoctf picoctf-writeups picoctfsolutions reverseengineering
Last synced: 15 Jun 2025
https://github.com/sop/crypto-util
A PHP library of various utilities for cryptographic applications.
cryptography elliptic-curves pbkdf1 pbkdf2 pem private-key public-key rsa
Last synced: 11 Jan 2026
https://github.com/astro-gram/password-manager
This is a secure password manager written in Python. 🔥🔥
cryptography encryption password-manager python
Last synced: 24 Sep 2025
https://github.com/aigptcode/secure-note-blockchain
یک برنامه یادداشت امن که از رمزنگاری امن برای حفاظت از یادداشتهای شما و سیستم بلاک چین که نوت ها به صورت بلاک سیو و استفاده میکند
api blockchain cryptography hack note notes py python secure secure-note web3
Last synced: 19 Mar 2025
https://github.com/nickray/pkcs11-uri
PKCS #11 URI parser
cryptography cryptoki hsm pkcs11 signatures
Last synced: 28 Jun 2025
https://github.com/cosmian/cloudproof_js
The JavaScript/Typescript API library to Cosmian Cloudproof Encryption
cloud cloudproof cryptography java
Last synced: 09 Jul 2025
https://github.com/dufkan/JCEd25519
JavaCard implementation of Ed25519 signature algorithm for smartcards that do not support EdDSA algorithm introduced in JavaCard API version 3.1.
Last synced: 16 Mar 2025
https://github.com/really-simple-decentralized-syndication/did-demo-writer
cryptography decentralization demo
Last synced: 31 Jul 2025
https://github.com/chetanxpro/public-key-cryptography
This is a basic project to show how public key cryptography work By using Elliptic Curve Digital Signatures
cryptography ecdsa-cryptography ethereum
Last synced: 12 Apr 2025
https://github.com/cmdruid/frost
Flexible, round-optimized threshold signature library for BIP340 taproot.
bitcoin cryptography frost threshold
Last synced: 20 Sep 2025
https://github.com/dracoon/dracoon-csharp-crypto-sdk
Official DRACOON Crypto SDK for C#
crypto cryptography csharp dracoon sdk
Last synced: 27 Jun 2025
https://github.com/berdav/okx-passphrase-restorer
Retrieve OKX 12 words passphrase from a backup of the wallet files and the password.
cryptocurrency cryptography okx wallet
Last synced: 10 Apr 2025
https://github.com/nexckycort/rijndael-nodejs
Implementation of the rijndael encryption algorithm.🛡️
cryptography nodejs typescript webpack
Last synced: 28 Oct 2025
https://github.com/jsign/merlin
Composable proof transcripts for public-coin arguments of knowledge
cryptography fiat-shamir transcript zero-knowledge
Last synced: 18 Mar 2025
https://github.com/jsign/sumhash
sumhash512 cryptographic function implementation
algorand cryptography hash rust
Last synced: 18 Mar 2025
https://github.com/guilt/groupenc
Group Encryption utilities in Python, with a CLI.
bootstrap cryptography encryption group privacy self-hosted vault
Last synced: 21 Jul 2025
https://github.com/vatshayan/neural-network-cryptography-project
Increase of Security through Combination of Neural Network and Cryptography.
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Last synced: 28 Oct 2025
https://github.com/stackoverflowexcept1on/frost-secp256k1-evm
Cheap threshold signature scheme for EVM
cryptography elliptic-curves schnorr schnorr-signatures solidity threshold-cryptography threshold-signature
Last synced: 06 Mar 2026
https://github.com/alexaubry/crypto
Swift wrapper for CommonCrypto
commoncrypto cryptography swift
Last synced: 30 Jul 2025
https://github.com/sc0vu/js-secp256k1
Compiled webassembly of bitcoin secp256k1
bitcoin cryptography elliptic secp256k1 wasm webassembly
Last synced: 13 Apr 2025
https://github.com/vijayshinva/kryptos
A .NET core tool for cryptography.
base64url cryptographic-hash cryptography cryptography-tools dotnet dotnet-core global-tool hash hmac jwt md5 oid pfx self-signed-certificate subresource-integrity
Last synced: 10 Apr 2025
https://github.com/devgeeks/echidna.js
Crypton is dead, long live Echidna.js
crypto cryptography echidna pouchdb tweetnacl
Last synced: 05 Apr 2025
https://github.com/demining/parsing-blockchain-in-google-drive
How to Parse Blockchain Transactions to a Google Drive Folder
attack bitcoin blockchain cryptocurrencies cryptography ecdsa ecdsa-cryptography ecdsa-signature elliptic-curves elliptic-curves-cryptography google-api google-cloud google-drive privatekey secp256k1 vulnerabilities vulnerability
Last synced: 03 May 2025
https://github.com/alexadamm/jwt-vault-go
JWT implementation with HashiCorp Vault's signature
cryptography go golang jwks jwt microservices vault
Last synced: 12 Jan 2026
https://github.com/demining/break-ecdsa-cryptography
The very first serious vulnerability in Blockchain and how to get the public key Bitcoin ECDSA RSZ value from the RawTX file
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Last synced: 03 May 2025
https://github.com/chrisamanse/Codegen
An open source one-time password generator for iOS.
authentication authenticator cryptography generator hmac ios one-time-passwords qrcode security swift
Last synced: 22 Jul 2025
https://github.com/cheran-senthil/bitcoin-keygen
₿ Bitcoin Utility Functions
bitcoin blockchain cryptocurrency cryptography keygen python script
Last synced: 14 Apr 2025
https://github.com/roginvs/cryptopoll
Secure crypto voting application
cryptography monero voting voting-application
Last synced: 14 Jun 2025
https://github.com/retr0kr0dy/cryptsis
CryptSIS is an encryptor/decryptor working with different Cipher depending on the version.
cryptography encryption-decryption
Last synced: 18 Feb 2026
https://github.com/jwerle/libhypercore-crypto
A C99 library for various cryptographic functions used in Hypercore.
c crypto cryptography hypercore
Last synced: 28 Mar 2025
https://github.com/roastercode/cryptosteg
Encrypt / Decrypt your files securely from command line to a picture
Last synced: 11 Jun 2026
https://github.com/coderserdar/csharphelpermethods
Bu çeşitli veri türleri ile ilgili olarak faydalı metotların kullanımı ile ilgili olarak hazırlanmış basit bir Windows Form uygulamasıdır
c-sharp cryptography datetime helpful numerical-methods string windows-forms
Last synced: 26 Jul 2025
https://github.com/rafael-santiago/kryptos
A multiplatform easy to embed crypto library.
blake3 crypto cryptography cryptography-library embedded-c freebsd freebsd-kld internal-dsl kernel-module linux linux-kernel-module minix netbsd netbsd-kernel-module netbsd-kmod openbsd solaris suckless-implementations windows windows-kernel
Last synced: 30 Oct 2025
https://github.com/megyssstaa/kantanj
A handy general-purpose Java library.
cryptography currency currency-conversion currency-converter formatter formatting general-purpose geolocation geolocation-api ip ip-api ip-info ipapi ipinfo java library maven networking system wrapper
Last synced: 29 Jul 2025
https://github.com/arxiver/rsam
Modified package for RSA encryption/decryption to allow large message encryption/decryption, to allow encryption through private key and decryption through public key and signature through public key and private key and vice versa. i.e. Additional functionalities to the existing crypto package https://pkg.go.dev/github.com/gossl/rsam
crypto cryptography go go-package golang gopher package rsa rsa-algorithm rsa-encryption rsa-key-encryption rsa-key-pair
Last synced: 24 Jul 2025
https://github.com/wioniqle-q/acl-lib
Cross-platform file encryption library built with .NET 9
aes-gcm argon argon2 argon2id avaloniaui c-sharp chacha20-poly1305 chachapoly cross-platform cryptography dotnet encryption file-encryption libsodium privacy secure-storage security sha3-512 storage xchacha20poly1305
Last synced: 29 Jul 2025
https://github.com/alexaubry/Crypto
Swift wrapper for CommonCrypto
commoncrypto cryptography swift
Last synced: 21 Jul 2025
https://github.com/star10pro/electron-executor
Electron-Executor is a powerful tool for executing commands directly from an Electron application. It provides a seamless way to interact with the underlying operating system for enhanced functionality.
cryptography cybersecurity electron electron-app encryption gpg gpt javascript llm mobile nodejs offline pgp privacy
Last synced: 29 Jul 2025
https://github.com/myl7/vdmpf
Verifiable distributed multi-point function (DMPF) implementation
Last synced: 15 May 2025
https://github.com/beritani/ring-signatures
Pure TypeScript Ring Signatures
cryptography elliptic-curves ring-signatures
Last synced: 27 Jun 2025
https://github.com/daira/scaling
Amsterdam scaling presentation
cryptocurrency cryptography mix-net privacy privacy-enhancing-technologies research-project scalability sharding slides zcash zk-snarks
Last synced: 08 Jan 2026
https://github.com/paepckehh/tlsinfo
Tool to analyze and troubleshoot TLS connections (app/lib/api)
analyzer certificate certificates command-line crypto cryptography ecdsa ed25519 go infosec infosectools pki rsa ssl terminal tls tls13 x509
Last synced: 01 Apr 2026
https://github.com/gibbed/gibbed.xxtea
C#/.NET implementation of XXTEA.
block-cipher cryptography xxtea
Last synced: 29 Jul 2025
https://github.com/diplomatiq/crypto-random
TypeScript library for generating cryptographically strong, uniformly distributed random integers from custom intervals, strings from custom character sets, and boolean values.
cryptography javascript javascript-library random-bytes random-generation random-int random-string secure-random-generator typescript
Last synced: 29 Jul 2025
https://github.com/serviejs/keysign
Data signing and verification for rotating credentials and algorithms
cryptography data-integrity hmac hmac-sha256 sign
Last synced: 19 Jul 2025
https://github.com/ahdinosaur/secret-channel
🤫 A protocol for an authenticated and encrypted message stream
aead authenticated authenticated-encryption chacha20-poly1305 chacha20poly1305 crypto cryptography encryption scuttlebutt secure-scuttlebutt ssb stream streaming
Last synced: 20 Sep 2025
https://github.com/nishnash54/twostepencryption
Applying Steganography followed by Visual Cryptography Encode and Decode data
cryptography python3 steganography visual-cryptography
Last synced: 15 Aug 2025
https://github.com/cyrildever/go-utls
Utilities for Go
bip32 cryptography ecies-geth empreinte-sociometrique golang utilities-library
Last synced: 10 Apr 2025
https://github.com/fckveza/vhtearcryptoutil
VHtearCryptoutil
aes-encryption aes-gcm bytecode cryptography encryption-decryption hashing
Last synced: 25 Jul 2025
https://github.com/ivan-tymoshenko/rust-salsa20
Fast implementation of salsa20 in safe rust
cipher crypto cryptography encrypt estream generate generator performance rust salsa20 stream stream-cipher
Last synced: 16 Jun 2025
https://github.com/animeshshaw/psychohasher
A Java based utility for data or file hash generation.
cryptography dfir forensics gradle hashing java
Last synced: 20 Sep 2025
https://github.com/crowdcompute/crowdengine
Peer-to-Peer compute engine implementation
blockchain crypto cryptocurrency cryptography ethereum peer-to-peer
Last synced: 12 Jan 2026
https://github.com/jonasalfredsson/docker-on-tmpfs
GitHub Action that mounts a tmpfs volume on /var/lib/docker/.
386 armv7 cryptography docker getdents64 github-actions hacktoberfest qemu readdir tmpfs
Last synced: 11 May 2025
https://github.com/chksum-rs/lib
An implementation of various hash functions with a straightforward interface for computing digests of bytes, files, directories, and more.
cryptography digest hash rust rust-crate
Last synced: 08 Apr 2026
https://github.com/marcogarlet/crypto
A collection of cryptographic algorithms (even attacks) created during Cryptography classes.
Last synced: 21 Jun 2025
https://github.com/virgilsecurity/virgil-cryptowrapper-x
Virgil Crypto library is a small, flexible and convenient wrapper for a variety of cryptographic algorithms. Includes asymmetric key generation, encryption/decryption of data, generation/verification of digital signatures, Pythia protocol and Double Ratchet protocol implementation.
cryptography doubleratchet encryption pythia ratchet
Last synced: 09 May 2025
https://github.com/jonatandb/python-flask-js-postgresql-crud
Python Flask + JS + PostgreSQL - CRUD
backend-api bootswatch crud crud-api crud-application cryptography flask flask-api heroku javascript jonatandb postgres postgresql python rest web
Last synced: 30 Apr 2025
https://github.com/10d9e/paillier.sol
Paillier homomorphic cryptosystem in Solidity
cryptography paillier-cryptosystem solidity
Last synced: 12 Apr 2025
https://github.com/isan-rivkin/lamport-signatures-rs
Lamport one-time signature scheme in Rust
cryptography lamport-signature quantum-computing
Last synced: 04 Oct 2025
https://github.com/virgilsecurity/virgil-pythia-node
Virgil Pythia SDK allows developers to implement Pythia protocol to create breach-proof passwords, immune to offline and online attacks.
breach-proof-password cryptography encryption nodejs pythia pythia-sdk sdk virgil-pythia
Last synced: 09 May 2025
https://github.com/virgilsecurity/virgil-keyknox-x
KeyKnox SDK allows developers to communicate with Virgil Keyknox Service to upload, download, and synchronize encrypted sensitive data (private keys) between different devices.
cryptography keyknox keypair sdk
Last synced: 09 May 2025
https://github.com/msokoloff1/adversarial-neural-cryptography
Explores adversarial networks for cryptography
artificial-intelligence cryptography neural-network
Last synced: 17 Jun 2025
https://github.com/cyrildever/crumbl-jar
Library in the JVM for secure data storage with trusted third-parties
cryptography data-masking scala-library signing-trusted storage-api
Last synced: 10 Apr 2025
https://github.com/virgilsecurity/virgil-purekit-net
PureKit SDK allows developers to protect users' passwords and sensitive personal information in a database from data breaches and both online and offline attacks and make stolen passwords useless even if a database is breached.
cryptography encryption gdpr hipaa passw0rd password password-hardened-encryption phe pii piidata sdk
Last synced: 09 May 2025
https://github.com/hugow04/vpn
VPN (Virtual private network) for MacOS and Linux
cryptography tcp udp virtual-private-network vpn vpn-client vpn-server
Last synced: 22 Jul 2025
https://github.com/bardiakz/oqs
oqs - A Dart FFI wrapper for liboqs, delivering post-quantum cryptographic algorithms. Supports NIST-standardized KEMs (e.g., ML-KEM) and signatures (e.g., ML-DSA), optimized for Flutter and cross-platform applications (Android, iOS, Linux, macOS, Windows). MIT Licensed.
cryptography dart ffi flutter kem kyber liboqs ml-dsa ml-kem oqs pqc quantom-cryptography
Last synced: 19 Feb 2026
https://github.com/christopher-besch/cryptography
Cryptography Cracking Tool.
ciphers cryptography cut decryption delimiters encrypted-numbers xor
Last synced: 12 Aug 2025
https://github.com/n1ghtf1re/digital-signature
Digital signature using RSA algorithm
cryptography digital-signature digital-signatures rsa rsa-algorithm rsa-signature sha1 sha1-hash sha256 sha256-hash
Last synced: 05 Apr 2025
https://github.com/aidatorajiro/crypto
crypto fun repository
bitcoin crypto cryptography ecdsa elliptic-curves ethereum http2 learning-with-errors monoalphabetic pari-gp postquantum python python3 segwit solidity ssl tls13
Last synced: 12 Apr 2025
https://github.com/jiep/generic-anon-ake
Implementation of Generic Anonymous AKE
ake cryptography dilithium kyber liboqs post-quantum post-quantum-cryptography post-quantum-kem rust signature
Last synced: 09 May 2025
https://github.com/rumkin/crypto-stamp
🖋 Web-ready signature format and library
crypto-stamp cryptography javascript signatures website
Last synced: 27 Jul 2025
https://github.com/shuhanmirza/cryptography-online-tool
🔒Online Tool for trying out cryptographic algorithms
Last synced: 11 Oct 2025
https://github.com/demining/check-bitcoin-address-balance
How to Convert Bitcoin-PUBKEY HEX Public Keys to Base58 Bitcoin Address and Check Balance for BTC Coins
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/ironvenom/encdecpy
Python package for encoding and decoding strings using classical cipher algorithms.
classical-ciphers cryptography decoding encoding python
Last synced: 09 Oct 2025
https://github.com/socram8888/saph-browser
Stupid Algorithm for Password Hashing (WebCrypto)
crypto cryptographic-algorithms cryptographic-hash cryptographic-hash-functions cryptographic-library cryptography cryptography-algorithms es2017 javascript javascript-library typescript webcrypto
Last synced: 24 Oct 2025
https://github.com/webmd-health-services/carbon.cryptography
Cross-platform PowerShell module that makes encrypting and decrypting strings (using standard cryptographic algorithms) and managing certificates easy.
aes-crypto aes-encryption certificates cryptography dpapi powershell powershell-core powershell-module rsa-cryptography rsa-encryption securestring security x509 x509certificates
Last synced: 15 Oct 2025
https://github.com/nronzel/xoracle
Brute force repeating-key XOR cracker.
cryptography ctf golang repeating-key-vigenere xor-cipher xor-decoder
Last synced: 17 Jan 2026