Difference between revisions of "Serge Vaudenay"

From ESC2017
Jump to: navigation, search
(Created page with "'''Title''': TBA '''Abstract''': TBA")
 
 
Line 1: Line 1:
'''Title''': TBA
+
'''Title:''' Breaking the FF3 Format Preserving Encryption (Joint work with Betül Durak.)
  
'''Abstract''': TBA
+
'''Abstract:''' Last year, NIST published a standard for format preserving encryption including two algorithms: FF1 and FF3. We break FF3 by showing a known plaintext attack to recover the entire codebook with a data complexity better than the trivial attack. For that, we propose a new attack on 4-round Feistel networks to recover the round function tables.

Latest revision as of 14:41, 13 January 2017

Title: Breaking the FF3 Format Preserving Encryption (Joint work with Betül Durak.)

Abstract: Last year, NIST published a standard for format preserving encryption including two algorithms: FF1 and FF3. We break FF3 by showing a known plaintext attack to recover the entire codebook with a data complexity better than the trivial attack. For that, we propose a new attack on 4-round Feistel networks to recover the round function tables.