METHODS AND APPARATUSES FOR SECURING FIRMWARE IMAGE DOWNLOAD AND STORAGE BY DISTRIBUTION PROTECTION

摘要

A method for obtaining a firmware image from a second encrypted data having an encrypted firmware image. The encrypted firmware image is generated from the firmware image sequentially encrypted utilizing a first encryption key and a second encryption key. The first encryption key is specified for securing the firmware image. The second encryption key is specified for securing a distribution of the firmware image. The method includes: providing a second decryption key specified for decrypting the second encrypted data; decrypting at least the encrypted firmware image utilizing the second decryption key to generate a first encrypted data; providing a first decryption key specified for decrypting the first encrypted data; and decrypting the first encrypted data utilizing the first decryption key to obtain the firmware image.