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Raj
727 posts
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Raj
@0xRajkumar
Security Researcher @Certora
EVM
0xrajkumar.com
Joined December 2021
1,904
Following
2,742
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  • Pinned
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    Raj
    @0xRajkumar
    Jul 24, 2024
    I implemented the EVM from scratch in Rust. Learning Rust and looking for a project to implement? Try creating the EVM!
    github.com
    GitHub - 0xRajkumar/revm: Implementation of the Ethereum Virtual Machine in Rust.
    Implementation of the Ethereum Virtual Machine in Rust. - 0xRajkumar/revm
    28K
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    Raj
    @0xRajkumar
    Jan 20, 2023
    Rewarded with 2500$ on @immunefi. It's my first bounty.
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    54K
  • user avatar
    Raj
    @0xRajkumar
    Mar 3, 2025
    Got 2nd place in the @farcaster_xyz comp on @cantinaxyz🙌 Identified 4 high & 4 medium bugs 🔍 Next time, aiming for 1st!
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    8.4K
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    Raj
    @0xRajkumar
    Oct 31, 2024
    Got 4th place in the @MorphL2 contest on @sherlockdefi!🙌 It was my first time auditing an L2 codebase and learned a ton about Morph and Scroll.
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    12K
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    Raj
    @0xRajkumar
    Aug 15, 2024
    Never knew one follow can boost auditing skills to 10x🫶
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    11K
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    Raj
    @0xRajkumar
    May 29, 2024
    Secured 3rd rank at @goatxtech's contest on @cantinaxyz with 1M and 1H unique findings🫡
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    13K
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    Raj
    @0xRajkumar
    Mar 23, 2024
    Cryptographic notes that I made while learning cryptography from basics to understand primitives like RSA, ECDSA, and more. I made them public so that any beginner can learn from them.
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    GitHub - 0xRajkumar/cryptography-notes: Cryptography notes
    From github.com
    18K
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    Raj
    @0xRajkumar
    Apr 8, 2025
    Happy to share that I've joined @cantinaxyz. Excited for the journey ahead and all that I’ll learn along the way🙌
    user avatar
    Cantina 🪐
    @cantinasecurity
    Apr 8, 2025
    There’s a new Resident in the Cantina, @0xRajkumar! 🪐 This dedicated smart contract security researcher with a proven track record brings a strong computer science foundation with deep expertise in security, cryptography, and blockchain. In his 3.5 years in web3 and 2 years as
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    7K
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    Raj
    @0xRajkumar
    Mar 29, 2023
    I have a newly confirmed bounty of $2000 on @immunefi, and I am feeling good about it😊. At the same time mediation process on @immunefi is great.
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    10K
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    Raj
    @0xRajkumar
    Jun 3, 2023
    Hash Collisions caused by encodePacked: In the following example, you'll notice that hashes H1 and H2 are equal, even though the parameters are unique. The problem arises from how abi.encodePacked() handles its parameters. l’d appreciate a retweet, spread the knowledge🤠
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    12K
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    Raj
    @0xRajkumar
    Apr 29, 2023
    I feel disheartened after the @SpearbitDAO exam, with a score of only 40% correct. Despite my efforts, I was unable to meet the required standards. Nevertheless, I remain determined to improve, and I'm thankful to @SpearbitDAO for pointing out my weaknesses.
    14K
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    Raj
    @0xRajkumar
    Sep 30, 2023
    Many people have asked me about resources for learning mathematics for zero-knowledge proofs. Here's the Moonmath Manual created by Least Authority, which is specifically designed for ZKP.📚 leastauthority.com/community-matt…
    8.8K
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    Raj
    @0xRajkumar
    Aug 21, 2024
    Just wrapped up the security review of @ArtDotTech🫡 Uncovered a total of 7 issues: High: 3 Medium: 2 Low: 2 Check out the full report here:
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    audits/Solo/ArtTech.md at main · 0xRajkumar/audits
    From github.com
    7.9K
  • user avatar
    Raj
    @0xRajkumar
    Sep 23, 2023
    Two of my favorite resources to learn how Tornado Cash is built: youtube.com/watch?v=z_cRic… rareskills.io/post/how-does-…
    8K

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