Secure module anti-theft method free of secret key issuing, secure module and device

The invention relates to the field of security modules and Internet of Things security, and provides a security module anti-theft method free of key issuing, a security module and a device. The method comprises the following steps: in a security module registration process, generating a first random number as a binding voucher for binding a security module and a device, and sending the first random number to the device; when the security module and the device are bound for use, generating a second random number as a verification voucher for verifying the binding relationship between the security module and the device, and sending the second random number to the device; and receiving a first ciphertext sent by the device, performing encryption calculation according to the first random number and the second random number generated by the security module to obtain a second ciphertext, comparing the first ciphertext with the second ciphertext, and verifying the binding relationship between the security module and