Calculates an MD5 checksum for the string.
Calculates an SHA-1 checksum for the string.
Calculates an SHA-265 checksum for the string.
Calculates an SHA-384 checksum for the string.
Calculates an SHA-512 checksum for the string.
Generates a DSA key pair
Generates a RSA key pair
Computes a signature for the given object
Verifies the signature for the given object