Toolkit for Encryption, Signatures and Certificates Based on OpenSSL
Description
Bindings to OpenSSL libssl and libcrypto, plus custom SSH key parsers.
Supports RSA, DSA and EC curves P-256, P-384, P-521, and curve25519.
Cryptographic signatures can either be created and verified manually or via
x509 certificates. AES can be used in cbc, ctr or gcm mode for symmetric
encryption; RSA for asymmetric (public key) encryption or EC for Diffie
Hellman. High-level envelope functions combine RSA and AES for encrypting
arbitrary sized data. Other utilities include key generators, hash functions
(md5, sha1, sha256, etc), base64 encoder, a secure random number generator, and
'bignum' math methods for manually performing crypto calculations on large
multibyte integers.