Device authentication techniques

1. A method for authenticating a phone for a user comprising:

logging the user onto a server in a network from a computer using authentication information;

providing a personal identification number from the server to the computer over a secure communications channel over the network, without using the phone;

receiving the personal identification number from the phone at the server; and

using the personal identification number at the server to authenticate the phone in the network for the user.

2. The method of claim 1 , further comprising:

providing the authentication information to the user, the authentication information used by the user for logging onto the server, wherein the authentication information includes a username and password.

3. The method of claim 2 , further comprising:

generating, by the server, the personal identification number; and

communicating the personal identification number to the user, wherein the personal identification number has a predetermined lifespan of validity for use in connection with authenticating the phone.

4. The method of claim 3 , further comprising:

entering said personal identification number into said phone.

5. The method of claim 4 , wherein said personal identification number is transmitted to said phone using a wireless connection.

6. The method of claim 5 , wherein said wireless connection includes at least one of: an RF link, an IR link, and a magnetic coupling link.

7. The method of claim 4 , wherein said personal identification number is transmitted to said phone using audio tones.

8. The method of claim 4 , wherein said personal identification number is manually entered at said phone using a keypad.

9. The method of claim 4 , wherein said personal identification number is in a bar-coded form which is read using a reader at said phone.

10. The method of claim 4 , further comprising:

hashing, by said phone, said personal identification number entered at said phone generating a first hash value; and

hashing, by said server, a copy of said personal identification number as maintained at said server generating a second hash value.

11. The method of claim 10 , further comprising:

comparing, by said server, said first and second hash values;

if said first and second hash values do not match, not successfully completing authentication processing for the phone for the user.

12. The method of claim 11 , wherein if said first and second hash values match, a connection is established between said phone and said server and said phone sends a public key to the server.

13. The method of claim 12 , wherein said server obtains a digital certificate in accordance with said public key and transmits said digital certificate and identification information to log onto a communications server to the device.

14. The method of claim 13 , wherein said device is authenticated to said communications server in accordance with said digital certificate and identification information.

15. A method for authenticating a device for a user comprising:

providing authentication information to the user, wherein the authentication information is used by the user for logging onto a server in a network using a computer;

using the authentication information by the server to authenticate the user;

generating by the server a single-use personal identification number having a predetermined lifespan;

transmitting the personal identification number to the computer over a secure communications channel over the network, without using the device;

receiving the personal identification number from the device at the server; and

using the personal identification number at the server to authenticate the device in the network for the user.

16. The method of claim 15 , wherein said personal identification number is transmitted to said device from the computer using a wireless connection.

17. The method of claim 15 , wherein said personal identification number is communicated to said device from the computer using audio tones.

18. The method of claim 15 , wherein said personal identification number is input manually using a keypad of said device.

19. The method of claim 18 , wherein said keypad includes only telephone keypad key assignments.

20. A computer storage medium comprising executable code for authenticating a phone comprising code that:

provides authentication information to the user, wherein the authentication information is used by the user for logging onto a server in a network using a computer;

uses the authentication information by the server to authenticate said user;

generates by the server a personal identification number;

transmits the personal identification number to the computer over a secure communications channel over the network, without using the phone; and

receives the personal identification number from the phone at the server; and

uses the personal identification number at the server to authenticate the phone in the network for the user.