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This book constitutes the refereed proceedings of the 14th International Workshop on Security, IWSEC 2019, held in Tokyo, Japan, in August 2019.

The 18 regular papers and 5 short papers presented in this volume were carefully reviewed and selected from 61 submissions. They were organized in topical sections named: Public-Key Primitives; Cryptanalysis on Public-Key Primitives; Cryptographic Protocols; Symmetric-Key Primitives; Malware Detection and Classification; Intrusion Detection and Prevention; Web and Usable Security; Cryptanalysis on Symmetric-Key Primitives; and Forensics.

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Public-Key Primitives.- Cryptanalysis on Public-Key Primitives.- Cryptographic Protocols.- Symmetric-Key Primitives.- Malware Detection and Classification.- Intrusion Detection and Prevention.- Web and Usable Security.- Cryptanalysis on Symmetric-Key Primitives.- Forensics.

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