cross-platform (Java) file encryption and archiving tool
antigift is simple cross-platform, files & folders encryption tool
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Sampling exactly from the normal and exponential distributions
Open Source PKI solutions
Easy to use GlobalPlatform tool (and a Java library)
AES-128 bit file encryptor
Another encryption algorithm
Java native access for pc/sc, pkcs11, openct based on JNA
RSA 4096 C++ library
Fixed-length Arithmetic-types library