Pratish Datta

Title: Pratish Datta: Innovator in Cryptographic Systems

Introduction

Pratish Datta is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of cryptography, holding a total of 2 patents. His work focuses on advanced encryption and decryption technologies that enhance data security.

Latest Patents

Pratish Datta's latest patents include a decryption device, cryptographic system, and decryption method. The encryption device generates a ciphertext by setting, in the ciphertext, one of a predicate vector of arithmetic branching programs (ABP) and an attribute vector over a basis B of the basis B and a basis B*, which are dual bases in dual vector spaces. A key generation device generates a decryption key by setting, in the decryption key, the other one of the predicate vector and the attribute vector over the basis B*. The decryption device decrypts the ciphertext by performing a pairing operation on the ciphertext generated by the encryption device and the decryption key generated by the key generation device. Another patent involves a signature device, verification device, signature method, verification method, and computer-readable medium. The signature device acquires a signature key SK(x) in which an attribute vector x is set over a basis B* of a basis B and the basis B*, which are dual bases in dual vector spaces. The signature device generates a signature sig for a message MSG by setting predicate information of arithmetic branching programs (ABP) for the signature key SK(x). The signature device outputs the signature sig and the message MSG to a verification device.

Career Highlights

Throughout his career, Pratish Datta has worked with prominent companies such as Mitsubishi Electric Corporation and Nippon Telegraph and Telephone Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in cryptography.

Collaborations

Pratish has collaborated with notable individuals in his field, including Katsuyuki Takashima and Tatsuaki Okamoto. These collaborations have contributed to the advancement of his research and inventions.

Conclusion

Pratish Datta is a distinguished inventor whose work in cryptographic systems has made a significant impact on data security. His innovative patents and collaborations highlight his expertise and dedication to advancing technology in this critical field.