A Decade After Bleichenbacher '06, RSA Signature Forgery Still Works

A Decade After Bleichenbacher '06, RSA Signature Forgery Still Works

Black Hat via YouTube Direct link

Intro

1 of 16

1 of 16

Intro

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A Decade After Bleichenbacher '06, RSA Signature Forgery Still Works

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  1. 1 Intro
  2. 2 Textbook RSA signature
  3. 3 Beyond textbook RSA
  4. 4 PKCS#1 v1.5 Signature Scheme
  5. 5 Bleichenbacher's low exponent attack
  6. 6 A little brain teaser
  7. 7 Why was the attack possible?
  8. 8 To find these attacks
  9. 9 Automatically generate concolic test cases
  10. 10 Testing with Symbolic Execution
  11. 11 Implementations Tested
  12. 12 Leniency in Openswan 2.6.50
  13. 13 New unit test in Openswan
  14. 14 Leniency in strongSwan 5.6.3
  15. 15 strongSwan Security Update
  16. 16 Lessons Learned

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