Break (Reduced) RSA Using Factorization

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#cryptology, #cryptography, #cryptanalysis

In this video, we attack a "reduced" version of RSA, meaning, a short RSA key (256 bit) using the Quadratic Sieve component of CrypTool 2. This should demonstrate, why using short RSA keys today is not a good idea.

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  3. cryptology
  4. cryptography
  5. cryptanalysis
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Комментарии
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Thank you, now I understood how encryption and decryption works with RSA. So the weakpoint isn’t diffie Hellman but rather their generation of RSA keys. I wonder if diffie Hellman can be attacked by itself or am I a little confused now? :3

RAPEVERMRC
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The primes you used dont look safe. Will this program work with the RSA challenge numbers?

animalliberation
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I have value of 'N' but how to find out the value of 'P' & 'Q'? Shall I use cryptool 2 to find out the same?

sumedhkadam
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Thank you for the amazing vídeo. Ok but what is the alternative use for RSA?

creonte
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Thank you very much it was very useful

tyswamy
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Elliptic Curves has a standard known, RSA is not a good idea, we have few options. Usability, compatibility and in some cases of hardwares the size has need to be short. A paradox isn't ?

creonte