# Tag Info

5

Let me see if I have this right (and please correct me if I misunderstand; my conclusions depend on the details of this); you distribute images for your firmware device; these images are encrypted with a secret AES key (using AES in CBC mode); the device decrypts the image, and then runs that decrypted image. The sole check to make sure that the image ...

1

IV (initial value or initialization vector) is a vague term that describes some kind of starting value for a mode of operation that is known to both parties, and generally sent in the clear with the encrypted data (and known to the attacker) IVs in many modes of operation have specific requirements to that mode. In some modes the requirement is that is ...

1

Problem statement You have a list of messages $(m_1, m_2, \dots, m_n)$, possibly with corresponding tags/descriptions $(t_1, t_2, \dots, t_n)$, that you want to store. You want to protect confidentiality of the messages (but not the tags/descriptions) against an adversary that compromises your storage. You have a single secret passphrase $pw$ at your ...

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