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jvdsn/crypto-attacks
Fourier analysis attack

Thank you very much for your library sir and I want to ask when will be Fourier analysis attack available this is very interesting script.
  • dexizer7799
  • 1
  • Opened 
    21 days ago
  • #29

jvdsn/crypto-attacks
Issues in key_reuse.py in One Time Pad

Hello, I found some minor issues in key_reuse.py file of the One Time Pad. 1) In _hamming distance function it is best to use: distance += bin(x ^ y).count( 1 ) for compatibility with Python versions ...
  • jonpism
  • 3
  • Opened 
    on Jan 13
  • #28

jvdsn/crypto-attacks
Please implement anomalous attack for curves that are anomalous p−2

Due to this equality, if a curve with a certain j-invariant is not anomalous, we check if the group order is p + 2. If this is the case, then we compute a quadratic twist of the curve (with sufficiently ...
  • ytrezq
  • Opened 
    on Dec 6, 2024
  • #27

jvdsn/crypto-attacks
Please implement polynomial time exponentiation inversion for BN curves

Required for #24. The underlying idea is to factorize $F_p^{12}-1$ and solve power root for each resulting moduli. I can share https://ieeexplore.ieee.org/abstract/document/6530387 privately for more details. ...
  • ytrezq
  • Opened 
    on Dec 4, 2024
  • #26

jvdsn/crypto-attacks
Please implement the GHS attack

For any binary curve, the aim is to map the discrete logarithm to an hyperelliptic curve. It’s something as much well known as pairings. See https://hal.science/hal-01121942/document for details.
  • ytrezq
  • Opened 
    on Nov 30, 2024
  • #25

jvdsn/crypto-attacks
Please implement Miller inversion for some curves

Pairings can be used for attacking the discrete logarithm on supersingular curves as you propose, it’s used for encryption or signature purposes. https://pdfupload.io/docs/8453308d#%5B%7B%22num%22%3A2790%2C%22gen%22%3A0%7D%2C%7B%22name%22%3A%22FitH%22%7D%2C343%5D ...
  • ytrezq
  • Opened 
    on Nov 28, 2024
  • #24

jvdsn/crypto-attacks
Please implement Addleman’s algorithm for solving discrete logarithms : the first index calculus algorithm.

As far I understand, 1 distinctive feature of such algorithm is it fully works in subgroups/suborders. All other index calculus algorithms can do this only for the linear algebra phase and thus their ...
  • ytrezq
  • 3
  • Opened 
    on Nov 21, 2024
  • #23

jvdsn/crypto-attacks
Please support curves over extension Fields in attacks/ecc/smart_attack.py !

It’s perfectly possible to use Nigel’s Smart algorithm for anomalous curves over extension fields. The problem is I failed to understand this paper myself enough to implement the variant that works in ...
  • ytrezq
  • 15
  • Opened 
    on Nov 16, 2024
  • #22

jvdsn/crypto-attacks
memory usage in hencel lift

https://github.com/jvdsn/crypto-attacks/blob/master/shared/hensel.py#L33 FIX: # roots = list(range(p)) roots = range(p) because list(range(big_p)) will use so much memory
  • uvicorn
  • 3
  • Opened 
    on Feb 26, 2024
  • #20

jvdsn/crypto-attacks
shared.ecc.generate_with_order speed up

same problem: https://github.com/J08nY/ecgen/issues/23 pari.qfbsolve(pari.Qfb(1, 0, -D), 4 * m, 1) is slow because pari try to factor m every time. our solution: m = Integer(sys.argv[1]) out = subprocess.check_output([ ...
  • uvicorn
  • 2
  • Opened 
    on Jan 4, 2024
  • #19
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