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How ephemeral keys validate possession of a static key
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Being ad-free on Android without rooting
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Modulo Biases and how to avoid them!
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Forget Homomorphic Encryption
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CTF Writeup / GoogleCTF 2018 / DM Collision
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CTF Writeup / GoogleCTF 2018 / Perfect Secrecy
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Understanding and implementing Manger attack
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CTF Writeup / Y-Not-CTF / SmS Secret Secure Server
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On the PGP cipher preferences
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Yao's Garbled Circuits and how to construct those
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CTF Writeup / PlaidCTF / Echo
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How (not) to break your (EC)DSA
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Various Linux tips
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Manger's attack against RSA OAEP
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A strange ODBC driver problem
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A strange QSql Driver error
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A ladder, a box and a wall