1.bitcoin / bitcoin
Bitcoin Core integration/staging tree
+98 stars
from 90,483 · score 4.60
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
52 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
2.openssl / openssl
General purpose TLS and crypto library
+91 stars
from 31,067 · score 4.52
3.cryptomator / cryptomator
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
+66 stars
from 16,347 · score 4.20
4.bee-san / Ciphey
⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡
+31 stars
from 21,702 · score 3.47
5.jedisct1 / libsodium
A modern, portable, easy to use crypto library.
+21 stars
from 14,017 · score 3.09
6.monero-project / monero
Monero: the secure, private, untraceable cryptocurrency
+21 stars
from 10,949 · score 3.09
7.rustls / rustls
A modern TLS library in Rust
+16 stars
from 7,711 · score 2.83
8.PrivateBin / PrivateBin
A minimalist, open source online pastebin where the server has zero knowledge of pasted data. Data is encrypted/decrypted in the browser using 256 bits AES.
+15 stars
from 8,708 · score 2.77
9.amark / gun
An open source cybersecurity protocol for syncing decentralized graph data.
+8 stars
from 19,151 · score 2.20
10.pyca / cryptography
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.
+8 stars
from 7,824 · score 2.20
11.RsaCtfTool / RsaCtfTool
RSA attack tool (mainly for ctf) - retrieve private key from weak public key and/or uncipher data
+7 stars
from 7,198 · score 2.08
12.wolfSSL / wolfssl
The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3! Update to wolfSSL 5.9.1 for the latest CVE fixes.
+7 stars
from 2,977 · score 2.08
13.mcginty / snow
A Rust implementation of the Noise Protocol Framework
+6 stars
from 1,107 · score 1.95
14.paulmillr / noble-hashes
Audited & minimal JS implementation of hash functions, MACs and KDFs.
+6 stars
from 935 · score 1.95
15.javascript-obfuscator / javascript-obfuscator
A powerful obfuscator for JavaScript and Node.js
+5 stars
from 16,314 · score 1.79
16.lightningnetwork / lnd
Lightning Network Daemon ⚡️
+5 stars
from 8,205 · score 1.79
17.digitalbazaar / forge
A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps
+5 stars
from 5,345 · score 1.79
18.RustCrypto / hashes
Collection of cryptographic hash functions written in pure Rust
+5 stars
from 2,281 · score 1.79
19.libtom / libtomcrypt
LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.
+5 stars
from 1,794 · score 1.79
20.aws / s2n-tls
An implementation of the TLS/SSL protocols
+4 stars
from 4,782 · score 1.61
21.KuroLabs / stegcloak
Hide secrets with invisible characters in plain text securely using passwords 🧙🏻♂️⭐
+4 stars
from 3,928 · score 1.61
22.padloc / padloc
A modern, open source password manager for individuals and teams.
+4 stars
from 2,937 · score 1.61
23.jedisct1 / libhydrogen
A lightweight, secure, easy-to-use crypto library suitable for constrained environments.
+4 stars
from 790 · score 1.61
24.halfrost / Halfrost-Field
✍🏻 Source Code Deep Dives, System Design & Engineering Blogs | Halfrost-Field 冰霜之地：源码解析、系统设计与工程实践笔记
+3 stars
from 13,250 · score 1.39
25.sobolevn / awesome-cryptography
A curated list of cryptography resources and links.
+3 stars
from 7,185 · score 1.39
26.weidai11 / cryptopp
free C++ class library of cryptographic schemes
+3 stars
from 5,522 · score 1.39
27.epsylon / ufonet
UFONet - Denial of Service Toolkit
+3 stars
from 2,545 · score 1.39
28.Peergos / Peergos
A p2p, secure file storage, social network and application protocol
+3 stars
from 2,543 · score 1.39
29.pFarb / awesome-crypto-papers
A curated list of cryptography papers, articles, tutorials and howtos.
+3 stars
from 2,104 · score 1.39
30.fwdai / rowel
🔑 Local-first Secrets Manager
+3 stars
from 957 · score 1.39
31.paulmillr / noble-ciphers
Audited & minimal JS implementation of Salsa20, ChaCha and AES
+3 stars
from 429 · score 1.39
32.Legrandin / pycryptodome
A self-contained cryptographic library for Python
+2 stars
from 3,282 · score 1.10
33.cossacklabs / themis
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
+2 stars
from 1,980 · score 1.10
34.jonaschn / awesome-he
✨ Awesome - A curated list of amazing Homomorphic Encryption libraries, software and resources
+2 stars
from 1,261 · score 1.10
35.paulmillr / noble-curves
Audited & minimal JS implementation of elliptic curve cryptography.
+2 stars
from 967 · score 1.10
36.XRPLF / rippled
Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger protocol in C++
+1 stars
from 5,240 · score 0.69
+1 stars
from 4,110 · score 0.69
38.awnumar / memguard
Software sandbox for storage of sensitive information in memory.
+1 stars
from 2,764 · score 0.69
39.cossacklabs / acra
Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.
+1 stars
from 1,494 · score 0.69
40.jedisct1 / libsodium.js
libsodium compiled to Webassembly and pure JavaScript, with convenient wrappers.
+1 stars
from 1,162 · score 0.69
41.nccgroup / featherduster
An automated, modular cryptanalysis tool; i.e., a Weapon of Math Destruction
+1 stars
from 1,140 · score 0.69
42.RubyCrypto / rbnacl
Ruby FFI binding to the Networking and Cryptography (NaCl) library (a.k.a. libsodium)
+1 stars
from 984 · score 0.69
43.JHUISI / charm
Charm: A Framework for Rapidly Prototyping Cryptosystems
+1 stars
from 649 · score 0.69
44.ektrah / nsec
A modern and easy-to-use cryptographic library for .NET based on libsodium
+1 stars
from 451 · score 0.69
45.Password4j / password4j
Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.
+1 stars
from 437 · score 0.69
46.potatosalad / erlang-jose
JSON Object Signing and Encryption (JOSE) for Erlang and Elixir
+1 stars
from 339 · score 0.69
47.tink-crypto / tink-java
Java implementation of Tink
+1 stars
from 310 · score 0.69
48.depado / goploader
Easy file sharing with server-side encryption, curl/httpie/wget compliant
+1 stars
from 301 · score 0.69
49.harrison314 / BouncyHsm
Bouncy Hsm is a software simulator of HSM and smartcard simulator with HTML UI, REST API and PKCS#11 interface.
+1 stars
from 204 · score 0.69
50.lk-geimfari / secrets.clj
A library designed to generate cryptographically strong random numbers suitable for managing data such as passwords, account authentication, security tokens, and related secrets.
+1 stars
from 100 · score 0.69
51.SSProve / ssprove
A foundational framework for modular cryptographic proofs in Coq
+1 stars
from 90 · score 0.69
52.shrec / UltrafastSecp256k1
Ultra high-performance secp256k1 ECC engine | Python, Node.js, Rust, Go, C#, Swift, Java bindings | CUDA, Metal, OpenCL GPU | ECDSA, Schnorr, FROST, MuSig2, BIP-352 | 15+ platforms
+1 stars
from 59 · score 0.69