Efficient Multi Authority Attribute Based Signcryption

The security of data kept in the cloud has been an issue of great concern in recent years. The data is taken from the system regardless of how robust the protection is. One of the most significant areas of study in the cloud storage industry has been the development of efficient fine-grained access methods. Confidentiality and authenticity for any type of data are provided via Attribute Based Encryption (ABE) and Attribute Based Signature (ABS). Attribute-Based Sign-Cryptography is a synthesis of these methods (ABSC). Many proposed fixes, however, fall short when applied to actual problems. This method has a high computational and communication cost and uses fewer third-party services. As a result, this research study develops a unique ABSC method to safeguard both the signcryptor's and the ciphertext's privacy while allowing public verification of the cipher's authenticity.