XPost: alt.folklore.computers   
   From: tnp@invalid.invalid   
      
   On 02/01/2026 21:17, Richard Kettlewell wrote:   
   > Lawrence D’Oliveiro  writes:   
   >> Richard Kettlewell wrote:   
   >>   
   >>> The need for symmetric encryption systems to include a MAC to   
   >>> prevent this kind of issue has been understood for a long time.   
   >>   
   >> 🏆💯   
   >>   
   >> Just want to point out you used the term “symmetric” in the sense in   
   >> which I think it *should* be used: to refer to encryption systems   
   >> where the encryption and decryption algorithms are one and the same.   
   >>   
   >> Too often the term is used to refer to systems where the same key is   
   >> used for encryption and decryption -- I think these should more   
   >> properly be called “secret-key” systems.   
   >   
   > Please stop trolling.   
   >   
   > (For anyone in doubt, symmetric encryption refers to single-key   
   > encryption schemes, not encryption schemes were encryption and   
   > decryption are the same operation.)   
   >   
   I am surprised you didn't kf him years ago.   
      
   --   
   Religion is regarded by the common people as true, by the wise as   
   foolish, and by the rulers as useful.   
      
   (Seneca the Younger, 65 AD)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)