sibc
writeups
sibc | writeups | |
---|---|---|
1 | 8 | |
43 | 122 | |
- | 3.3% | |
0.0 | 6.8 | |
almost 2 years ago | about 1 month ago | |
Python | Python | |
GNU General Public License v3.0 only | - |
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sibc
writeups
- Question about ECDSA
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Reduced Round AES CTR Attacks
See: https://github.com/p4-team/ctf/tree/master/2016-03-12-0ctf/peoples_square and also https://github.com/TFNS/writeups/tree/master/2020-06-05-DefenitCTF/spn (this one is not AES but some toy SPN, but the idea is exactly the same and maybe easier to understand)
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Supersingular Isogeny Key Exchange in Python
Not exactly purely in Python because with sage and also the goal was breaking SIDH, but: https://github.com/TFNS/writeups/tree/master/2020-04-17-PlaidCTF/sidhe
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What are some real-world security issues in cryptography?
I'm not even mentioning big stuff like https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/ which interestingly enough is actually a vulnerability very similar to what exists in Java since the dawn of time -> https://github.com/openjdk/jdk/blob/master/src/java.base/share/classes/sun/security/provider/DSA.java#L358 (see: https://github.com/TFNS/writeups/tree/master/2020-10-03-TastelessCTF/petition )
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Technical Advisory – Arbitrary Signature Forgery in Stark Bank ECDSA Libraries
The same issue exists in Java JDK for quite a while (see: https://github.com/TFNS/writeups/tree/master/2020-10-03-TastelessCTF/petition ) ;) I suspect there are many more libraries with similar problem.
Seems like the same problem as exists in Java JDK in DSA -> https://github.com/TFNS/writeups/tree/master/2020-10-03-TastelessCTF/petition
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How did this person manage to extract all the RSA prime numbers in this writeup?
Check my writeup https://github.com/TFNS/writeups/tree/master/2021-10-23-ASIS-quals/madras if you need to understand where this come from.
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Using compromised algorithms.
See an example: https://github.com/TFNS/writeups/tree/master/2021-03-13-UTCTF/sleeves
What are some alternatives?
SIKE-Python - A python implementation of Supersingular Isogeny Key Exchange (SIKE) using the optimized reference algorithms
tweetable-polyglot-png - Pack up to 3MB of data into a tweetable PNG polyglot file.
PySyft - Perform data science on data that remains in someone else's server
squarectf - The "code" for squarectf.com
featherduster - An automated, modular cryptanalysis tool; i.e., a Weapon of Math Destruction
svachal - Automate writeup for vulnerable machines.
trezor-firmware - :lock: Trezor Firmware Monorepo
cryptofuzz - Fuzzing cryptographic libraries. Magic bug printer go brrrr.
HiddenWave - Hide Your Secret Message in any Wave Audio File.
hackingtool - ALL IN ONE Hacking Tool For Hackers
wycheproof - Project Wycheproof tests crypto libraries against known attacks.