A. Meenakowshalya

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Now a day's Recommender Systems (RS) have become predominant in Internet of Things (IoT), Online Social Networks (OSN) and Social Internet of Things (SIoT). Sybil attack is an attack where malicious users suppress opinions of honest users by creating fake identities called Sybils. Sybil attacks are prevalent in wireless sensor networks, online social(More)
Online data sharing systems such as Microsoft health vault, Google+, Facebook etc., renders security through promising cryptographic solutions via Ciphertext policy Attribute Based Encryption (CPABE). The CPABE scheme is well suited for distributed data sharing systems because the data owner has full control in enforcing access policies and updating the(More)
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