XPost: alt.folklore.computers   
   From: ldo@nz.invalid   
      
   On Fri, 02 Jan 2026 09:15:11 +0000, 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.   
      
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