Consider a system that allows multiple owners of an object This system allows an owner to grant rights to other subjects, and to delete them, except that the owner cannot delete another own right Q Assume there are two types of own rights, an original own own orig and an added own own add The own right own orig cannot be copied or added, whereas the own add right enables the possessor to add or delete rights (except for the own orig right) If p has own orig and q has own add , how does your answer to the first part change the first part of the answer Consider a system that allows multiple owners of an object This system allows an owner to grant rights to other subjects, and to delete them, except that the owner cannot delete another own right An object o has two owners, p and q What happens if p deletes all of q 's rights to the object Specifically, does this prevent q from accessing the object Answer No this will not prevent q from accessing the object It is clearly said that an owner cannot delete another owner's right So, q cannot delete rights of p to access the object

The Answer is in the image, click to view ...

Answered step by step

Verified Expert Solution

Link Copied!

Question

1 Approved Answer

Posted on Sep 26, 2024

Consider a system that allows multiple owners of an object. This system allows an owner to grant rights to other subjects, and to delete them,

Consider a system that allows multiple owners of an object. This system allows an owner to grant rights to other subjects, and to delete them, except that the owner cannot delete another own right.

Q: Assume there are two types of own rights, an "original own" own[orig] and an "added own" own[add]. The own right own[orig] cannot be copied or added, whereas the own[add] right enables the possessor to add or delete rights (except for the own[orig] right). If p has own[orig] and q has own[add], how does your answer to the first part change?

the first part of the answer:

Consider a system that allows multiple owners of an object. This system allows an owner to grant rights to other subjects, and to delete them, except that the owner cannot delete another own right.
1. An object o has two owners, p and q. What happens if p deletes all of q's rights to the object? Specifically, does this prevent q from accessing the object?

Answer:

No this will not prevent q from accessing the object.

It is clearly said that an owner cannot delete another owner's right. So, q cannot delete rights of p to access the object.