Tpm-based ibc trusted cross-chain transaction information transmission method

The invention discloses an ibc trusted cross-chain transaction information transmission method based on tpm. The method is specifically implemented according to the following steps that 1, a user A sends a generated A hash file to a user B; 2, the user B sends a B hash file to the user A; 3, after the user A receives the Hash file B, locking the signature modification state of the transaction amount of the user A from opening to closing, storing the transaction amount in the TPM, generating corresponding Hash information, and transmitting the Hash information; step 4, returning transaction completion information to the user A; and step 5, after the user A identifies the transaction completion information, checking whether the transaction has an error or not. TPM is used for identity authentication and digital signature, so that tampering and counterfeiting can be prevented, and the integrity and authenticity of transactions are ensured; private keys and certificates are stored and managed by using the TPM, so