International Association for Cryptologic Research
Certificateless public key cryptography is a widely studied paradigm due to its advantages of not having the key-escrow problem and the lack of use of certificates. Online-offline signature schemes are extremely relevant today because of their great practical applications. In an online-offline signature scheme all the heavy computation is done on powerful processors and stored securely in the offline phase, and the online component requires only light computation. Hence, it is widely used in several low-resource devices like mobile phones, etc.