Signature method and device of blockchain smart contract, storage medium and electronic equipment

• Main Authors: YE XUEFENG, WANG GONGTAO
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention provides a signature method and device of a block chain smart contract, a storage medium and electronic equipment, and can be applied to the financial field or other fields, and the method comprises the steps: obtaining a to-be-signed block chain smart contract, obtaining an initial signature value of the block chain smart contract, processing the initial signature value by using a preset Laplace operator, and obtaining a signature result of the block chain smart contract; obtaining a first processing value; processing the first processing value to obtain a second processing value; obtaining an offset value from the second processing value; based on the offset value, performing shift processing on the first processing value to obtain a third processing value; and performing XOR operation on the third processing value and the second processing value to obtain a digital signature of the block chain smart contract. According to the method, the signature value of the block chain smart contract is pr