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This book constitutes the refereed proceedings of the Cryptographer´s Track at the RSA Conference 2017, CT-RSA 2017, held in San Francisco, CA, USA, in February 2017.

The 25 papers presented in this volume were carefully reviewed and selected from 77 submissions.

CT-RSA has become a major publication venue in cryptography. It covers a wide variety of topics from public-key to symmetric key cryptography and from cryptographic protocols to primitives and their implementation security. This year selected topics such as cryptocurrencies and white-box cryptography were added to the call for papers.

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Public Key Implementations.- Lattice-based Cryptanalysis.- Fault and Glitch Resistant Implementations.- Side-channel Resistant Implementations.- Digital Signatures and Random Numbers.- Post-Quantum Cryptography.- Symmetric Key Cryptanalysis.- Symmetric Key Constructions.- 2017 Selected Topics.- Improved Key Recovery Algorithms.- Side-channel Analysis.- Cryptographic Protocols.- Public Key Algorithms.

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