US Patent 12026259 Method and system for securely provisioning electronic devices

A method for provisioning a plurality of electronic devices with a respective provisioning data set includes, in a test provisioning stage: generating at least one test application key in plaintext and encrypting the at least one test application key using a first wrapping key for generating at least one encrypted test application key; encrypting the first wrapping key using the secret device master key for generating an encrypted first wrapping key; provisioning one or more of the plurality of electronic devices with a respective first provisioning data set, wherein the respective first provisioning data set comprises the at least one test application key in plaintext, the at least one encrypted test application key and the encrypted first wrapping key; and testing a security function of the electronic device on the basis of at least a portion of the first provisioning data set.