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Repositories in this selection 9 · UTC 2026-11-05

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1RsaCtfTool / RsaCtfToolRSA attack tool (mainly for ctf) - retrieve private key from weak public key and/or uncipher dataPythonMIT · PermissiveInsufficient rank history7,2051,014——2026-10-23

2phpseclib / phpseclibPHP Secure Communications LibraryPHPMIT · PermissiveInsufficient rank history5,604910——2026-11-03

3syncsynchalt / illustrated-tls12The Illustrated TLS 1.2 Connection: Every byte explainedGoMIT · PermissiveInsufficient rank history3,513206——2025-07-25

4kjur / jsrsasignCAUTION: END OF SUPPORT ON 14 AUG 2026. The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp, CAdES and JSON Web Signature/Token in pure JavaScript.HTMLNOASSERTION · Restricted / unknownInsufficient rank history3,369647——2026-10-30

5Leon406 / ToolsFxCross-platform cryptography toolbox. Contains functions such as encoding and decoding, encoding conversion, encryption and decryption, hashing, MAC, signature, large number operations, compression, QR code function, CTF and other functions.KotlinISC · PermissiveInsufficient rank history2,071319——2026-11-02

6superpoweredSDK / Low-Latency-Android-iOS-Linux-Windows-tvOS-macOS-Interactive-Audio-Platform🇸Superpowered Audio, Networking and Cryptographics SDKs. High performance and cross platform on Android, iOS, macOS, tvOS, Linux, Windows and modern web browsers.C++Unknown · Restricted / unknownInsufficient rank history1,447287——2026-10-26

7TakeScoop / SwiftyRSARSA public/private key encryption in SwiftSwiftMIT · PermissiveInsufficient rank history1,304359——2025-01-11

8jvdsn / crypto-attacksPython implementations of cryptographic attacks and utilities.PythonMIT · PermissiveInsufficient rank history1,292146——2026-01-08

9ssh-vault / ssh-vault🌰 encrypt/decrypt using ssh keysRustBSD-3-Clause · PermissiveInsufficient rank history51132——2026-10-25

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