Heinz Markgraf wrote:
Hi!
You may encrypt/decrypt using a private key (yours), or encrypt/decrypt
using the public key of another party. The latter is commonly done
when verifying signatures, though encrypting with another's public
key is a common enveloping technique.
Hm, I still don't get the point in having four functions.
Mathematically seen there are only two different actions I can do:
either raise the 'message' x to the power of the public exponent or
to the power of the private exponent. Right?
right, but different padding schemes are used for encryption
and decryption (in case padding is used).
Nils
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