Comment on “An Efficient ABE Scheme With Verifiable Outsourced Encryption and Decryption”
Recently in IEEE Access (DOI: 10.1109/ACCESS.2018.2890565), Li et al.proposed a secure outsourcing algorithm for modular exponentiation in one single untrusted server model and a new method of generating transformation keys.They claimed that their solution can securely outsource encryption and decryption to untrusted ESP (encryption service provide