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Instant messaging applications like WhatsApp and iMessage have been widely used to exchange public and private information for both individuals and organizations. At the same time, the asynchronicity nature of these applications also introduces various security issues. To this end, considerable efforts have been made to strengthen the security and privacy of these applications, where a major goal is to capture the forward secrecy of asynchronous messaging without sacrificing other reasonable security properties. In this paper, we mainly focus on forward-secure zero round-trip time (0-RTT) key exchange protocols. Such a protocol enables a user to send the encrypted application data along with the first protocol message, and thus is especially suitable for securing asynchronous messaging. Concretely, we introduce a new cryptographic primitive dubbed as puncturable identity-based matchmaking key encapsulation mechanism (PIB-MKEM). It captures the authenticity of ciphertexts, and also allo
The wide use of internet-connected services makes massive personal data collected by service providers without the need of our consent. Although the archived data may enable them to provide better service experiences for users, it also presents serious risks to individual privacy, especially when active or unexpected data breaches have become commonplace. To mitigate this issue, several acts and regulations (e.g., the European Union general data protection regulation) have been issued and specified a lot of security requirements for personal data management. Among these various requirements, we mainly focus on the requirement of giving back the access control of personal data to data owners themselves and the right to be forgotten for data erasure. In this article, we provide a cryptographic solution of achieving these two requirements in the setting of outsourced storage. Specifically, we introduce a personal data management framework built upon a novel cryptographic primitive dubbed
Apache Tomcat 8 (8 0 20) - Security Considerations proprint.com.au - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from proprint.com.au Daily Mail and Mail on Sunday newspapers.