[no subject]

[Ma Fei Chun <mfc@xxxxxxxxxxxxxxxx>]

Hello!

	As I read from articles about how we can digitally sign an EDI
document over the Internet, the idea is more or less as follow:
1. generate a one-time random symmetric key to encrypt the EDI document.
2. encrypt this symmetric key by asymmetric encryption.

	Now, how about this idea?
1. Using Message Digest algorithms, such as MD5, to produce the
fingerprint of the EDI document.
2. encrypt this MD code using asymmetric encryption.


Correct me if this idea is not good.
						Best Regards,
						Ma Fei Chun, Patrick