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Public key encryption with keyword search (PEKS) allows users to search on encrypted data without leaking the keyword information from the ciphertexts. But it does not preserve keyword privacy within the trapdoors, because an adversary (e.g., ...

• We present StopGuess for PAEKS to give a general solution to eliminate IKGA.
• We present two generic constructions of PAEKS with StopGuess to demonstrate its the superiority.
• We extend PAEKS to support further properties or features ...

Recently, evolutionary computation (EC) has experienced significant advancements due to the integration of machine learning, distributed computing, and big data technologies. These developments have led to new research avenues in EC, such as distributed ...

Secure outsourced computation is critical for cloud computing to safeguard data confidentiality and ensure data usability. Recently, secure outsourced computation schemes following a twin-server architecture based on partially homomorphic cryptosystems ...

Time series data analytics technology significantly benefits modern scientific research, especially in fields such as medical health, financial investment, and transportation. Unfortunately, privacy issues hinder people from handing over the data to a ...

Mobile crowdsensing (MCS) systems typically struggle to address the challenge of data aggregation, incentive design, and privacy protection, simultaneously. However, existing solutions usually focus on one or, at most, two of these issues. To this end, ...

Outsourcing data in cloud storage is gaining popularity recently. For protecting data privacy, the data should be encrypted, and it is thus critical to provide search services for encrypted outsourced data. However, it becomes a ...

• We propose a randomness-based privacy-preserving face recognition scheme.
• We ...

Face recognition (FR) has become increasingly significant in many computer vision applications. However, with the rapid deployment of FR, the privacy of face images has been a growing concern, especially when FR is performed in cloud ...

Perforations in flexible endoscopy are life-threatening. Defect closure or suturing in flexible endoscopy has long been a critical challenge due to the confined space of the access routes and surgical sites, high dexterity and force demands of suturing ...

As a special case of public key encryption, identity-based encryption (IBE) takes any public known information as public key for encryption and then decrypts a ciphertext by a well-generated private key from private key generator (PKG)...

With the help of cloud computing, users can outsource their data to a cloud service provider (CSP) and enjoy the high-quality on-demand services from the cloud. On the other hand, once owners no longer have physical possession of the outsourced data, ...

Although a great number of objective methods for assessing perceptual image quality have been proposed, their performances on different distortion types are still unsatisfactory. It is a great challenge for image quality assessment (IQA) that distorted ...

Database as a Service (DBaaS) economically enables the customers with limited resources to outsource large-scale databases to the cloud. However, it becomes a very challenging problem that how to execute SQL on outsourced databases while protecting the ...

In practice, the greatest threat against the security of a digital signature scheme is the exposure of signing key, since the forward security of past signatures and the backward security of future signatures could be compromised. There are some ...

With the development in recent decades of various efficient image encryption algorithms, such as selective encryption, a great demand has arisen for methods of evaluating the visual security of encrypted images. Existing solutions usually adopt well-...