Encrypt and manage secret text data
Free portable cross-platform graphical multi-user password manager
cross-platform (Java) file encryption and archiving tool
Open-source code that enables you to use AES in CBC mode
Gestor Certificats Digitals
Smoke: Android Crypto Chat Messenger
antigift is simple cross-platform, files & folders encryption tool
支持国密SM2/SM3/SM4/SM9/SSL的密码工具箱
file/stream encryption/decryption/CRC based on PI compute algorithm
Twinkle is an open-source text editor.
RFC3161 compatible Time Stamping Authority
Optimized implementation of RC4 (Rivest Cipher 4, ARCFOUR) in ASMx64.
Anubis Involutional 128-bit SPN Block cipher Encryption Tool
STROBE cryptographic protocol framework
yubikey-agent is a seamless ssh-agent for YubiKeys
OpenSC - tools and libraries for smart cards
C++ cryptographic library (modern hash functions, ciphers, KDFs)
SHA-256 Algorithm Implementation in C
Linux encrypted filesystem management tool
Cipherbox is a vault that utilizes six encryption algorithms.