Text | --------> | Encrypted text | ----------> | Text |
Public key | Private key | |||
(S:sender) | (R:reciever) | |||
------> | Encrypted E-mail | ------> | Text | |
R's Public key | R's Private key | |||
(S:sender) text -------> message digest --------> digital signature MD5 S's Private key
text+ digital signature ----------> Check S's Public key