Exetools
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https://forum.exetools.com/index.php)
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Source Code
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https://forum.exetools.com/forumdisplay.php?f=46)
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RSACtfTool
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https://forum.exetools.com/showthread.php?t=18156)
RSACtfTool - Retreive private key from weak public key
RSA CTF Tool - Tool to attack RSA public keys and ciphertexts in common ways
Quote:
RSA tool for ctf - uncipher data from weak public key and try to recover private key Automatic selection of best attack for the given public key
Attacks :- Weak public key factorization
- Wiener's attack
- Hastad's attack (Small exponent attack)
- Small q (q<100,000)
- Common factor between ciphertext and modulus attack
- Fermat's factorisation for close p and q
- Gimmicky Primes method
- Past CTF Primes method
- Self-Initializing Quadratic Sieve (SIQS) using Yafu - NEW
- Common factor attacks across multiple keys - NEW
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New features:
Code:
[*] Small fractions method when p/q is close to a small fraction
[*] Boneh Durfee Method when the private exponent d is too small compared to the modulus (i.e d < n^0.292)
[*] Elliptic Curve Method
Download:
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