I2PA : An Efficient ABC for IoT
This addresses privacy and efficiency problems for IoT device developers and users, but it appears incremental as it builds on existing cryptographic techniques.
The paper tackles the challenge of designing a privacy-preserving and lightweight cryptographic scheme for IoT devices by proposing I2PA, an efficient attribute-based credential scheme that uses ECC without pairing, blind signing, and zero-knowledge proofs. The result is a scheme that supports block signing, selective disclosure, and randomization while reducing key size and computing time, making it suitable for IoT devices with low energy, storage, and computing constraints.
Internet of Things (IoT) is very attractive because of its promises. However, it brings many challenges, mainly issues about privacy preserving and lightweight cryptography. Many schemes have been designed so far but none of them simultaneously takes into account these aspects. In this paper, we propose an efficient ABC scheme for IoT devices. We use ECC without pairing, blind signing and zero knowledge proof. Our scheme supports block signing, selective disclosure and randomization. It provides data minimization and transactions' unlinkability. Our construction is efficient since smaller key size can be used and computing time can be reduced. As a result, it is a suitable solution for IoT devices characterized by three major constraints namely low energy power, small storage capacity and low computing power.