Aleksei

@hellman1908

Crypto / CTFs / etc. Researcher at CTF team MSLC

Somewhere
affine.group
Vrijeme pridruživanja: ožujak 2010.
5 fotografija ili videozapisa Fotografije i videozapisi

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  1. Prikvačeni tweet
    2. velj

    I am starting a blog. First post is about the StarkWare Hash Challenge

    1 reply 25 proslijeđenih tweetova 61 korisnik označava da mu se sviđa
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  2. proslijedio/la je Tweet
    prije 10 sati

    Whoa, what? ?

    1.143 proslijeđena tweeta 1.919 korisnika označava da im se sviđa
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  3. proslijedio/la je Tweet
    1. velj

    Here is my massive lib db (for ctfs/wargames/blind pwns etc.). It consists of thousands of libs across over a dozen Linux distributions and architectures spanning the last 20 years. It indexes symbols & gadgets (including one gadgets AKA magic gadgets).

    5 replies 135 proslijeđenih tweetova 399 korisnika označava da im se sviđa
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  4. proslijedio/la je Tweet
    3. velj

    This news reminds me of the European Space Agency in saying that "human beings" usually cannot "access flying spacecraft" so "there is no need for side channel attack protection". Serious attackers build machines to carry out attacks beyond human ability.

    Something to potentially watch: Cosmos 2542, a Russian inspection satellite, has recently synchronized its orbit with USA 245, an NRO KH11. A thread:
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    56 proslijeđenih tweetova 74 korisnika označavaju da im se sviđa
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  5. proslijedio/la je Tweet
    28. sij

    Kali Linux 2020.1 is out while the non-root user so you can use it as a daily driver if you want plus Nethunter for Android with no need to root you phone

    4 proslijeđena tweeta 9 korisnika označava da im se sviđa
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  6. proslijedio/la je Tweet
    28. sij

    Many of the slide-decks from Real World Crypto 2020 are now available online via: Videos at: Feedback survey at:

    30 proslijeđenih tweetova 51 korisnik označava da mu se sviđa
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  7. proslijedio/la je Tweet
    28. sij

    A photo is a mathematical representation of your face.

    Face ID only stores a mathematical representation of your face on iPhone, not a photo.
    135 replies 2.186 proslijeđenih tweetova 12.021 korisnik označava da mu se sviđa
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  8. proslijedio/la je Tweet
    27. sij

    New cache attack against Intel CPUs:

    18 replies 407 proslijeđenih tweetova 603 korisnika označavaju da im se sviđa
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  9. proslijedio/la je Tweet
    26. sij

    The claim in the FTI forensics report on Bezos’ iPhone that, “due to end-to-end encryption employed by WhatsApp, it is virtually impossible to decrypt the contents of the downloader [.enc file]...” bugged me so much that I coded up how to do it:

    1.180 proslijeđenih tweetova 2.755 korisnika označava da im se sviđa
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  10. proslijedio/la je Tweet
    24. sij

    I put the slides for my talk "Algorithms for Lattice Problems, in Practice" here: sources are here:

    9 proslijeđenih tweetova 28 korisnika označava da im se sviđa
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  11. 19. sij

    CRYPTO 2020 in Luxembourg 😉

    1 reply 4 korisnika označavaju da im se sviđa
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  12. proslijedio/la je Tweet
    19. sij

    My writeup for the "Out of the Sbox" crypto challenge at Teaser 2020: a key-recovery attack on a custom 7-round Feistel cipher with 2 known plaintexts.

    13 proslijeđenih tweetova 78 korisnika označava da im se sviđa
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  13. proslijedio/la je Tweet
    18. sij

    New Internet Explorer 0day and advisory out. Exploited in wild. No patch from Microsoft. Mitigation is to not use IE. CVE-2020-0674

    98 proslijeđenih tweetova 88 korisnika označava da im se sviđa
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  14. proslijedio/la je Tweet
    17. sij

    Damn this wasn’t in our threat model.

    Encryption's purpose is to blind the "Man In The Middle". But there is no man in the middle any more people!! Your data is watched as you input it, prior to decryption And read, after decryption, on the sane screen you are watching. Wake up!!
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    15 replies 15 proslijeđenih tweetova 115 korisnika označava da im se sviđa
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  15. proslijedio/la je Tweet
    16. sij

    To clarify the Windows crypto fail: The problem isn't in signature validation. The problem is the *root store/cache*. CryptoAPI considers an (attacker-supplied) root CA to be in the trust store if its public key and serial match a cert in the root store, Ignoring curve params.

    12 replies 220 proslijeđenih tweetova 549 korisnika označava da im se sviđa
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  16. proslijedio/la je Tweet
    16. sij

    If you DON’T give your new vulnerability a spicy name, everyone else will try to do it for you, and 2 years from now nobody will remember if “Chain Of Fools” is the same bug as “CurveBall” or “Who’s Curve”. The lesson is obvious.

    10 replies 22 proslijeđena tweeta 126 korisnika označava da im se sviđa
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  17. proslijedio/la je Tweet
    14. sij

    The NSA immediately prior to hitting the submit button to report CVE-2020-0601:

    20 replies 600 proslijeđenih tweetova 2.117 korisnika označava da im se sviđa
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  18. proslijedio/la je Tweet
    14. sij

    It is hard for me to think, off the top of my head, of a major crypto vulnerability in the last several years that wasn’t covered in Cryptopals challenges — today’s included: it’s in Set 8! Donations to flip the House funded it!

    40 proslijeđenih tweetova 154 korisnika označavaju da im se sviđa
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  19. proslijedio/la je Tweet
    13. sij

    Update CVE-2019-19781 You can exploit the vulnerability without the file and only use the file ! You can inject your payload inside the name of the XML file and fire the command execution ! 🔥💪

    12 replies 402 proslijeđena tweeta 814 korisnika označava da im se sviđa
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  20. proslijedio/la je Tweet
    14. sij

    MIP* = RE, by Zhengfeng Ji, Anand Natarajan, Thomas Vidick, John Wright, Henry Yuen: . There is a multiple-entagled-quantum-provers proof system for the Halting Problem, and Connes' Embedding Conjecture is false.

    29 proslijeđenih tweetova 71 korisnik označava da mu se sviđa
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