Skip to main content
Cryptography

Return to Question

edited body; edited tags; edited title; edited tags; edited tags
Source Link
Maarten Bodewes ♦
Maarten Bodewes ♦
  • 94.5k
  • 13
  • 165
  • 319

Are there AES128AES-128 keys such that first round key equals last round key?

I am looking for AES128AES-128 keys such that the last round key is exactly the first round key (which is simply the key). Any pointer to a proof that they exist or that they don't would be welcome.

 

 

In the same line, I am looking for last round keys which are the bitwise inverse of the key or some similarly simple relation with the key.

Are there AES128 keys such that first round key equals last round key?

I am looking for AES128 keys such that the last round key is exactly the first round key (which is simply the key). Any pointer to a proof that they exist or that they don't would be welcome.

 

In the same line, I am looking for last round keys which are the bitwise inverse of the key or some similarly simple relation with the key.

Are there AES-128 keys such that first round key equals last round key?

I am looking for AES-128 keys such that the last round key is exactly the first round key (which is simply the key). Any pointer to a proof that they exist or that they don't would be welcome. 

In the same line, I am looking for last round keys which are the bitwise inverse of the key or some similarly simple relation with the key.

Source Link
acapola
acapola
  • 143
  • 4

Are there AES128 keys such that first round key equals last round key?

I am looking for AES128 keys such that the last round key is exactly the first round key (which is simply the key). Any pointer to a proof that they exist or that they don't would be welcome.

In the same line, I am looking for last round keys which are the bitwise inverse of the key or some similarly simple relation with the key.