Cookie encryption variability

Hi all,

 

 

This may be a very stupid question... I am encrypting a cookie with a static name and value, but see in the logs that the encrypted value changes with each session. If I am using the same name, value, and passphrase for the encryption across the board, I would have expected the encrypted result to be the same; does "HTTP::cookie encrypt" include other seed factors into the encryption algorithm?

 

 

Thanks,

 

Jen