Internet domain name super variants

• US 8,341,252 B2
• Filed: 10/30/2009
• Issued: 12/25/2012
• Est. Priority Date: 10/30/2009
• Status: Active Grant

• Current Assignee: VeriSign, Inc.
• Original Assignee: VeriSign, Inc.
• Inventors: Colosi, John, Veeramachaneni, Srikanth
• Primary Examiner(s): DOAN, DUYEN MY
• Application Number:
  US12/609,794
• Publication Number:
  US 20110106924A1
• Time in Patent Office: 1,152 Days
• Field of Search: 709/203, 709/222, 709/245
• US Class Current: 709/222
• CPC Class Codes: H04L 2101/32 containing non-Latin characters, e.g. Chinese domain names
• CPC Class Codes: H04L 61/302 Administrative registration, e.g. for domain names at internet corporation for assigned names and numbers [ICANN]
• CPC Class Codes: H04L 61/3025 Domain name generation or assignment

Abstract

Systems and methods for registering a domain, including Internationalized Domain Names (IDNs), including receiving a request to register an IDN and determining a language category of the request. Code points of the request are converted to yield a generalized variant of the IDN. The generalized variant is compared to a stored database of registered IDNs that may include similar generalized variants of the registered IDNs. Based on the comparison, it is determined whether or not to resister the IDN. In the case the that IDN registration is allowed, the generalized variant of the IDN may be stored in the database to protect against later registration by similar IDNs. Converting the code points of the request may include identifying corresponding code points of variants within the language category, and converting each of the code points of the requested IDN based on a deterministic algorithm applied to the corresponding code points. The deterministic algorithm may be applied to a value of each of the corresponding code points to yield a representative code point from among the corresponding code points, and the generalized variant may include a representative code point for each of the code points of the request.

Claims

1. A method for registering a domain, comprising:

receiving a request to register an Internationalized Domain Name (IDN) at a registry server;

determining a language category of the request;

identifying corresponding code points of language variants within the language category for one or more code points in the request;

converting each of the one or more code points into a representative code point chosen from among the corresponding code points by applying a deterministic algorithm to a value of each of the corresponding code points;

determining, by a computer processor, a generalized variant of the IDN based on the converted code points;

comparing a portion of the generalized variant to a stored database of registered IDNs;

if the portion of the generalized variant matches a portion of a registered IDN, comparing another portion of the generalized variant to the stored database of registered IDNs;

if all portions of the generalized variant match a registered IDN, blocking the registration; and

if at least one portion of the generalized variant does not match a portion of a registered IDN, registering the IDN and storing the generalized variant in the database.

2. The method of claim 1, wherein the generalized variant includes a representative code point for each of the code points of the request.

3. The method of claim 1, wherein the deterministic algorithm includes identifying a corresponding code point with a smallest numerical value.

4. The method of claim 1, wherein the deterministic algorithm includes identifying a corresponding code point with a largest numerical value.

5. The method of claim 1, wherein the deterministic algorithm includes identifying a corresponding code point with a simplest prime factorization.

6. The method of claim 1, further comprising blocking additional IDN registration requests based on the stored generalized variant.

7. The method of claim 1, wherein the language category is Chinese and the language variants include traditional Chinese and simplified Chinese.

8. The method of claim 1, wherein the request includes characters from at least two language variants.

9. The method of claim 8, wherein the deterministic algorithm includes identifying a corresponding code point based on numerical values of each of the corresponding code points.

10. The method of claim 8, wherein the deterministic algorithm includes identifying a corresponding code point with a smallest numerical value.

11. The method of claim 8, wherein the deterministic algorithm includes identifying a corresponding code point with a largest numerical value.

12. The method of claim 8, wherein the deterministic algorithm includes identifying a corresponding code point with a simplest prime factorization.

13. A computer-readable storage device encoded with executable instructions that, when executed by a computer, cause the computer to perform the steps of:

recognizing a request to register an Internationalized Domain Name (IDN) at a registry server;

determining a language category of the request;

identifying corresponding code points of variants within the language category for one or more code points in the request;

converting each of the one or more code points into a representative code point chosen from among the corresponding code points by applying a deterministic algorithm to a value of each of the corresponding code points;

determining a generalized variant of the IDN based on the converted code points;

comparing a portion of the generalized variant to a stored database of registered IDNs;

if the portion of the generalized variant matches a portion of a registered IDN, comparing another portion of the generalized variant to the stored database of registered IDNs;

if all portions of the generalized variant match a registered IDN, blocking the registration; and

if at least one portion of the generalized variant does not match a portion of a registered IDN, registering the IDN and storing the generalized variant in the database.

14. The device of claim 13, wherein the generalized variant includes a representative code point for each of the code points of the request.

15. A method for registering a domain, comprising:

receiving a request to register an Internationalized Domain Name (IDN);

determining a language category of the request;

identifying corresponding code points of variants within the language category for one or more code points in the request;

converting each of the one or more code points into a representative code point chosen from among the corresponding code points by applying a deterministic algorithm to a value of each of the corresponding code points;

determining, by the computer processor, a generalized variant of the IDN based on the converted code points;

comparing a portion of the generalized variant to a stored database of registered IDNs; and

determining, by the computer processor, whether to allow registration of the IDN based on whether the portion of the generalized variant matches a portion of a registered IDN;

wherein,

if the IDN is not allowed to register, the comparing step is repeated with another portion of the generalized variant.

16. The method of claim 15, wherein the generalized variant includes a representative code point for each of the code points of the request.

17. The method of claim 15, wherein the database of registered IDNs comprises generalized variants of registered IDNs that are referenced to determine whether the generalized variant matches a registered IDN, the generalized variants of registered IDNs derived based on the deterministic algorithm.

18. The method of claim 17, wherein the deterministic algorithm includes identifying a corresponding code point with a smallest numerical value.

19. The method of claim 17, wherein the deterministic algorithm includes identifying a corresponding code point with a largest numerical value.

20. The method of claim 18, wherein the deterministic algorithm includes identifying a corresponding code point with a simplest prime factorization.

21. A system for registering a domain, comprising:

a memory; and

a computer processor,

wherein the memory is encoded with instructions that cause the computer processor to perform the following steps;

recognizing a request to register an Internationalized Domain Name (IDN);

determining a language category of the request;

identifying at least one code point that is included in a group of corresponding code points;

replacing the at least one code point with a representative code point, the representative code point chosen from among the group of corresponding code points by applying a deterministic algorithm to a value of each of the corresponding code points;

determining a generalized variant of the IDN based on the converted code points;

comparing a portion of the generalized variant to a stored database of registered IDNs; and

determining whether to allow registration of the IDN based on whether the portion of the generalized variant matches a portion of a registered IDN;

wherein,

if the IDN is not allowed to register, the comparing step is repeated with another portion of the generalized variant.