Devices and methods for facilitating software signing by more than one signing authority

A method operational on an electronic device, comprising:

• obtaining a first software comprising a hash table segment, the hash table segment comprising at least one hash entry, a first signature and first certificate chain from a first entity for the at least one hash entry, and a second signature and second certificate chain from a second entity for the at least one hash entry;
• validating the first signature;
• validating the second signature;
• and
• executing the first software after validating both the first signature and the second signature.

An electronic device, comprising:

• means for storing a first software comprising a hash table segment, the hash table segment comprising at least one hash entry, a first signature and first certificate chain from a first entity for the at least one hash entry, and a second signature and second certificate chain from a second entity for the at least one hash entry;
• means for validating the first signature;
• means for validating the second signature;
• and
• means for executing the first software after both the first signature and the second signature have been validated.

A non-transitory processor-readable storage medium storing processor-executable programming for causing a processing circuit to:

• store a first software comprising a hash table segment, the hash table segment comprising at least one hash entry, a first signature and first certificate chain from a first entity for the at least one hash entry, and a second signature and second certificate chain from a second entity for the at least one hash entry;
• authenticate the first signature;
• authenticate the second signature;
• and
• execute the first software after both the first signature and the second signature have been authenticated.