|
Pretty Good Privacy with PGP |
|
|
|
Source: AskJack Bog - Posted by Bill Keys
|
PGP has two uses. First, it is an encryption system that uses public-key cryptography. Each user has a public key and a private key. In simple terms, you can encrypt a message using someone's public key and they can decrypt it using their private key. (A one-off session key is actually involved.) If the private key has been kept truly private, no one else can read the message.
More commonly, PGP is used to create a digital signature based on the contents of an email. This enables the recipient to verify that the message has not been changed, using the sender's public key.
Read this full article at AskJack Bog
Powered by AkoComment! |
