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The authentication process of traditional Secure Boot schemes is based on the Public Key Infrastructure (PKI) system. With the sharp increase in the number of devices, certificate management will increase system complexity, and the authentication process only achieves one-way authentication, resulting in insufficient security. In addition, because the chained chain of trust is selected, the loss of trust transmission during the startup process is large. In response to the above issues, this article proposes a Secure Boot scheme based on the Identity Based Encryption (IBC) system, namely the IBCEB scheme. The scheme uses the national standard SM9 algorithm of IBC system as the implementation method, implements the certificateless two-way authentication protocol, optimizes the Chain of trust model, and reduces the loss of trust transmission. Tests were conducted on the ZC706 evaluation board, and the test results showed that the device successfully started after bidirectional authentication, improving the system"s security.