Pedro Barbosa (@pedroysb) profile picture

Pedro Barbosa

@pedroysb

Security Engineer at Google. CTF player for the Epic Leet Team (@eltctfbr).

 Zurich, Switzerland
Joined November 2010
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  • Followers481
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Photo by Pedro Barbosa (@pedroysb)
Check out our blog post to learn results from our experiments with Paranoid (github.com/google/paranoid_c…). Our open-source project that detects the usage of weak cryptographic artifacts, such as public keys and digital signatures --> security.googleblog.com/2022…
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Congratulations for the amazing research @larissabrazb. Very deserved and I'm really proud of you 🥰. Also congratulations to @sback_ and @ZESTuzh friends that were part of this.
Alberto Bacchelli (@sback_) profile pictureAlberto Bacchelli@sback_2 Dec 2022
Heartfelt congratulations to now Dr. @larissabrazb for very successfully (summa cum laude!) defending her PhD thesis today. Topic: "Secure Code Review." Thank you, Larissa, it was a great honor to have you as a Ph.D. student @ZESTuzh!
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I knew it!! 🤷
Enrico Fregnan (@EnFregnan) profile pictureEnrico Fregnan@EnFregnan30 Sep 2022
Great news! Our paper “First come first served: the impact of file position on code review” (arxiv.org/pdf/2208.04259.pdf) was selected as one of the distinguished papers at FSE 2022! 🎉🎉🎉 Congrats and thanks to all the authors @larissabrazb @marquitodambros @GulCalikli @sback_
Replying to @__dqi
@__dqi congrats with the prize :-)
dqi (@__dqi) profile picturedqi@__dqi9 Aug 2022
Another writeup for #GoogleCTF. This time: "Custom Protocol" by @pedroysb :) github.com/dqi/ctf_writeup/t…
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🥳 We just released paranoid_crypto. The library checks for trivial weakenesses on crypto artifacts generated by black boxes (i.e. when we don't know how they were generated). Official call for contributions to be published soon. Joint work with Daniel Bleichenbacher.
Eduardo Vela (@sirdarckcat) profile pictureEduardo Vela@sirdarckcat3 Aug 2022
Put public key in. Get private key out. github.com/google/paranoid_c…
GitHub - google/paranoid_crypto: Paranoid's library contains implementations of checks for well...

GitHub - google/paranoid_crypto: Paranoid's library contains implementations of checks for well...

Paranoid's library contains implementations of checks for well known weaknesses on cryptographic artifacts. - google/paranoid_crypto

github.com
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-----BEGIN PUBLIC----- Get ready 🔥🔥 I'm so happy to share that for another year I could contribute to Google CTF by authoring and mentoring challenges in the crypto category 🔒🔑 Looking forward to seeing all the amazing teams working on them. -----END PUBLIC-----
Google VRP (Google Bug Hunters) (@GoogleVRP) profile pictureGoogle VRP (Google Bug Hunters)
@GoogleVRP21 Jun 2022
security.googleblog.com/2022…
Game on! The 2022 Google CTF is here.

Game on! The 2022 Google CTF is here.

Posted by Jan Keller, Technical Entertainment Manager, Bug Hunters  Are you ready to put your hacking skills to the test? It’s Google CTF ti...

security.googleblog.com
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Parece ser um problema generalizado da educação e investimento em ciência como um todo, e não só no âmbito de cyber security e votação eletrônica.
Diego F. Aranha 🕷️ (@dfaranha) profile pictureDiego F. Aranha 🕷️@dfaranha9 Jun 2022
A polarização política passa totalmente do limite quando se decide difamar um cientista para defender um ponto técnico. A moda agora é me acusar de ser trambiqueiro e ter recebido dinheiro para fazer campanha de desinformação contra o sistema eletrônico de votação.
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No More War music.youtube.com/watch?v=R-… via @YouTubeMusic
Post a pic YOU took, use no description, and bring some Zen to the timeline.
Image from Pedro Barbosa (@pedroysb)
terjanq (@terjanq) profile pictureterjanq@terjanq25 Oct 2021
Post a pic YOU took, use no description, and bring some Zen to the timeline.
Image from terjanq (@terjanq)
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SENSACIONAL kkkkkkkk
Porta dos Fundos (@portadosfundos) profile picturePorta dos Fundos
@portadosfundos19 Jul 2021
- Eu amo música sudestina! #portadosfundos @gduvivier @ademaravilha @jaoseupimenta VÍDEO NOVO | SUDESTINO: youtu.be/1E9gAWSxjx4

SUDESTINO

Uai, mano, cê tá de caô, brother? A gente aqui num papo firmeza nesse trem e você agindo igual um zê ruela? Tô bolado. Essa parada era pra ser top, sô.

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Google CTF 2021 starts in a few minutes, 🤗🤗g0g0g0
Matteo Rizzo (@_MatteoRizzo) profile pictureMatteo Rizzo@_MatteoRizzo16 Jul 2021
Google CTF 2021 is this weekend! 🥳Come get yourself some flags 🤩security.googleblog.com/2021…

Get ready for the 2021 Google CTF

Posted by Kristoffer Janke, Information Security Engineer Are you ready for no sleep, no chill and a lot of hacking? Our annual Google CTF i...

security.googleblog.com
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O @matteussls é um ninja! Trabalho duro viu! @matteussls such a ninja and hard worker!
Pwn2Win CTF (@Pwn2Win) profile picturePwn2Win CTF@Pwn2Win28 May 2021
Special thanks to @matteussls , responsible for our healthchecker!
Image from Pwn2Win CTF (@Pwn2Win)
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Alô Twitter, como faz para denunciar fake news divulgada pelo @TSEjusbr ?
Diego F. Aranha 🕷️ (@dfaranha) profile pictureDiego F. Aranha 🕷️@dfaranha24 Nov 2020
É por isso que não podemos ter coisas boas. teapaw.org/TSEjusbr/status/133090…
Começa amanhã, 13:37 BRT. Criptógrafos, estão preparados?
Epic Leet Team (@eltctfbr) profile pictureEpic Leet Team@eltctfbr21 Jul 2020
[PT-BR] Estamos recrutando! Se você tem afinidade com Criptografia e quer jogar sério com a gente, essa é sua chance. Veja as informações em bit.ly/recrutamento-crypto-2…. Toda ajuda na divulgação é apreciada. ;)
Image from Epic Leet Team (@eltctfbr)
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Vamos lá, criptógrafos do Brasil.
Epic Leet Team (@eltctfbr) profile pictureEpic Leet Team@eltctfbr21 Jul 2020
[PT-BR] Estamos recrutando! Se você tem afinidade com Criptografia e quer jogar sério com a gente, essa é sua chance. Veja as informações em bit.ly/recrutamento-crypto-2…. Toda ajuda na divulgação é apreciada. ;)
Image from Epic Leet Team (@eltctfbr)
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Replying to @eltctfbr
@eltctfbr
Eduardo Vela (@sirdarckcat) profile pictureEduardo Vela@sirdarckcat3 Jul 2020
Calling all CTF Authors! Do you love building CTF tasks? New competition to find the best CTF Tasks, both original (never seen before) and of the past year (Hall of Fame) forum.defcon.org/node/233145
Estou preocupado com o número crescente de casos de coronavírus no Brasil. Atitudes como cumprimentar de forma distante, parar de socializar, e ficar em casa de quarentena, não são da natureza da maioria dos brasileiros.
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Por isso, precisamos ser conscientes e ficar atentos para agir enquanto ainda é tempo. Caso contrário em breve o sistema de saúde ficará ainda mais cheio e entrará em colapso com a falta se leitos nos hospitais.
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Writeup of "Bilinear Evil" crypto challenge made by @dfaranha for @Pwn2Win CTF: ctftime.org/writeup/17149.
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Me and @dfaranha made some hard EC and RSA challenges for @Pwn2Win. Can you solve them? pwn2.win/2019
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G0g0g0
Epic Leet Team (@eltctfbr) profile pictureEpic Leet Team@eltctfbr18 Oct 2019
Registration for @Pwn2Win #CTF 2019 is now open! Are you ready for another Epic Edition? Help us spread the word! pwn2win.party
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