Internet security for e3000 - September 2000

September 11, 2000
internet security on your hp e3000
Page 17
hp e3000
internet
security
Cipher
text
Plain
text
Secret
key
Plain
text
Secret
key
secret key cryptography
• A single key is used for both encryption and
decryption
• The key is "shared" by the sender and
receiver
• Common symmetric algorithms are RC4,
DES and 3-DES