Security device based on asymmetric encryption

• Main Authors: GUO BAO'AN, WANG SULING, SU BIN, ZHANG QINGSHENG
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention relates to the field of security, and discloses a security device based on asymmetric encryption. The security device comprises: a great number operation module used for performing addition, subtraction, multiplication, division, modular addition, modular subtraction, modular multiplication and modular exponentiation operations; an ECC operation module used for performing ordinary addition, doubling and point multiplication operations of an ECC; an extension field element operation module used for performing modular addition, modular subtraction, modular multiplication and modular exponentiation operations of extension field elements; an extension field ECC operation module used for performing ordinary addition, doubling and point multiplication operations of the extension field ECC; an ECC pairing operation module used for performing set mapping; an SM9 encryption algorithm protocol module used for performing encryption, decryption, signature verification and key exchange according to an SM9 cr