ASN1                    Functions for handling ASN.1 format (typically
                        DER)
BIGNUMint               Functions for BIGNUM representation of
                        arbitrarily precise integers
PKI.crypt               PKI encryption/decryption functions
PKI.digest              Compute digest sum based on SHA1, SHA256 or MD5
                        hash functions
PKI.sign                PKI: sign content or verify a signature
PKI.sign.tar            Functions for signing and verification of tar
                        files
RSA                     PKI functions handling RSA keys
X509                    Public Key Instraftructure (X509) functions
raw2hex                 Convert raw vector to string hex representation
