Accountable content stores for information centric networks
View Patent ↗A set of Content Store nodes of an information-centric network (ICN) can cache data, and can processes an Interest for this data based on a domain assigned to the requested data. During operation, a CS node can receive a Content Object that is to be cached, and processes the Content Object by determining a domain associated with the Content Object. The CS node selects a storage repository associated with the domain, and stores the Content Object in the selected repository. The CS node can also receive an Interest for a piece of content, and processes the Interest by performing a lookup operation for a rule associated with the Interest's name. The rule can include a set of commands for performing a programmatic operation. Then, if the CS node finds a matching rule, the CS node can execute the rule's commands to perform the programmatic operation.
1. A computer-implemented method, comprising:
receiving, by a content-storing device, a Content Object, wherein the Content Object includes a name which is a hierarchically structured variable length identifier;
determining, by the content-storing device, a content producer associated with the Content Object;
selecting, by the content-storing device, for the Content Object, a first domain associated with the content producer, the first domain indicating a subscription;
selecting, by the content-storing device, a first storage repository assigned to the first domain, wherein the first storage repository sends a first-resolution format of the Content Object;
assigning, by the content-storing device, for the Content Object, a second domain for use other than the subscription;
selecting, by the content-storing device, a second storage repository assigned to the second domain, wherein the second storage repository sends a second-resolution format of the Content Object, wherein the first-resolution format has a higher resolution than the second-resolution format;
storing, by the content-storing device, the Content Object in the first and second storage repositories;
receiving an Interest that specifies a name of the Content Object;
determining whether the Interest has permission to access the first domain; and
in response to determining that the Interest has permission to access the first domain, returning the first-resolution format of the Content Object from the first storage repository; or
in response to determining that the Interest has no permission to access the first domain, returning the second-resolution format of the Content Object from the second storage repository.
2. The method of claim 1 , further comprising:
assigning the first storage repository to the first domain based on one or more of:
an administrative attribute of the first storage repository;
a typological attribute of the first storage repository;
a performance attribute of the first storage repository;
an ontological attribute of the first storage repository; and
a security attribute of the first storage repository.
3. The method of claim 1 , wherein each of the first storage repository and the second storage repository includes one or more of:
a memory device;
a local non-volatile storage device;
a network storage device;
a distributed data store; and
a database.
4. The method of claim 1 , further comprising:
determining, by the content-storing device, one or more attributes of the Content Object, wherein the determined attributes of the Content Object include one or more of:
an owner;
a data size;
a content name;
a signer of the Content Object;
a digital signature;
a lifetime of the Content Object; and
an access frequency of the Content Object.
5. The method of claim 1 , further comprising:
determining a set of domains associated with the Content Object; and
determining, from the set of domains, a domain that the Interest has permission to access.
6. A non-transitory, computer-readable storage medium storing instructions that, when executed by a computer, cause the computer to perform a method, the method comprising:
receiving, by the computer, a Content Object, wherein the Content Object includes a name which is a hierarchically structured variable length identifier;
determining, by the computer, a content producer associated with the Content Object;
selecting, by the computer, for the Content Object, a first domain associated with the content producer, the first domain indicating a subscription;
selecting, by the computer, a first storage repository assigned to the first domain, wherein the first storage repository sends a first-resolution format of the Content Object;
assigning, by the computer, for the Content Object, a second domain for use other than the subscription;
selecting, by the computer, a second storage repository assigned to the second domain, wherein the second storage repository sends a second-resolution format of the Content Object wherein the first-resolution format has a higher resolution than the second-resolution format;
storing, by the computer, the Content Object in the first and second storage repositories;
receiving an Interest that specifies a name of the Content Object;
determining whether the Interest has permission to access the first domain; and
in response to determining that the Interest has permission to access the first domain, returning the first-resolution format of the Content Object from the first storage repository; or
in response to determining that the Interest has no permission to access the first domain, returning the second-resolution format of the Content Object from the second storage repository.
7. The storage medium of claim 6 , wherein the method further comprises:
assigning the first storage repository to the first domain based on one or more of:
an administrative attribute of the first storage repository;
a typological attribute of the first storage repository;
a performance attribute of the first storage repository;
an ontological attribute of the first storage repository; and
a security attribute of the first storage repository.
8. The storage medium of claim 6 , wherein the method further comprises:
determining, by the computer, one or more attributes of the Content Object, and the determined attributes of the Content Object include one or more of:
an owner;
a data size;
a content name;
a signer of the Content Object;
a digital signature;
a lifetime of the Content Object; and
an access frequency of the Content Object.
9. The storage medium of claim 6 , wherein the method further comprises:
determining a set of domains associated with the Content Object; and
determining, from the set of domains, a domain that the Interest has permission to access.
10. A computer system, comprising:
a processor; and
a storage device for storing instructions that, when executed by the processor, cause the processor to perform a method, the method comprising
receiving, by the computer system, a Content Object, wherein the Content Object includes a name which is a hierarchically structured variable length identifiers
determining, by the computer system, a content producer associated with the Content Object;
selecting, by the computer system, for the Content Object, a first domain associated with the content producer, the first domain indicating a subscription;
selecting, by the computer system, a first storage repository assigned to the first domain, wherein the first storage repository sends a first-resolution format of the Content Object;
assigning, by the content-storing device, for the Content Object, a second domain for use other than the subscription;
selecting, by the content-storing device, a second storage repository assigned to the second domain, wherein the second storage repository sends a second-resolution format of the video stream of the Content Object, wherein the first-resolution format has a higher resolution than the second-resolution format;
storing, by the computer system, the Content Object in the first and second storage repositories;
receiving an Interest that specifies a name of the Content Object;
determining whether the Interest has permission to access the first domain; and
in response to determining that the Interest has permission to access the first domain, returning the first-resolution format of the Content Object from the first storage repository; or
in response to determining that the Interest has no permission to access the first domain, returning the second-resolution format of the Content Object from the second storage repository.
11. The computer system of claim 10 , wherein the method further comprises:
assigning the first storage repository to the first domain based on one or more of:
an administrative attribute of the first storage repository;
a typological attribute of the first storage repository;
a performance attribute of the first storage repository;
an ontological attribute of the first storage repository; and
a security attribute of the first storage repository.
12. The computer system of claim 10 , wherein the method further comprises:
determining, by the computer system, one or more attributes of the Content Object, and the determined attributes of the Content Object include one or more of:
an owner;
a data size;
a content name;
a signer of the Content Object;
a digital signature;
a lifetime of the Content Object; and
an access frequency of the Content Object.
13. The computer system of claim 10 , wherein the method further comprises:
determining a set of domains associated with the Content Object; and
determining, from the set of domains, a domain that the Interest has permission to access.
14. The method of claim 1 , wherein each of the first storage repository and the second storage repository delivers a predetermined level of performance.
15. The storage medium of claim 6 , wherein each of the first storage repository and the second storage repository delivers a predetermined level of performance.
16. The computer system of claim 10 , wherein each of the first storage repository and the second storage repository delivers a predetermined level of performance.
17. The method of claim 1 , wherein storing the Content Object in the first and second storage repositories includes storing only a first segment of the Content Object, and the method further comprises:
pre-fetching later segments of the Content Object after receiving the Interest for the first segment of the Content Object.
18. The storage medium of claim 6 , wherein storing the Content Object in the first and second storage repositories includes storing only a first segment of the Content Object, and the method further comprises:
pre-fetching later segments of the Content Object after receiving the Interest for the first segment of the Content Object.
19. The computer system of claim 10 , wherein storing the Content Object in the first and second storage repositories includes storing only a first segment of the Content Object, and the method further comprises:
pre-fetching later segments of the Content Object after receiving the Interest for the first segment of the Content Object.