Automatic replacement of passwords with secure claims

• US 10,484,372 B1
• Filed: 12/14/2015
• Issued: 11/19/2019
• Est. Priority Date: 12/14/2015
• Status: Active Grant

• Current Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Original Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Inventors: Johansson, Jesper Mikael, Kawach, Rami
• Primary Examiner(s): Rahman, Mahfuzur
• Assistant Examiner(s): Dhruv, Darshan I
• Application Number:
  US14/968,422
• Time in Patent Office: 1,436 Days
• CPC Class Codes: H04L 2463/062 applying encryption of the keys cryptographic mechanisms or cryptographic arrangements for key distribution using key encryption key H04L9/0822
• CPC Class Codes: H04L 63/0442 wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption cryptographic mechanisms or cryptographic arrangements for public-key encryption H04L9/30
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 63/083 using passwords cryptographic mechanisms or cryptographic arrangements for entity authentication using a predetermined code H04L9/3226
• CPC Class Codes: H04L 63/0861 using biometrical features, e.g. fingerprint, retina-scan cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231
• CPC Class Codes: H04L 63/0892 by using authentication-authorization-accounting [AAA] servers or protocols
• CPC Class Codes: H04W 12/069 using certificates or pre-shared keys

Abstract

Secure interactions between a client device executing an application and a remote server associated with the application are enabled without credentials such as passwords. The application may acquire an encryption key pair, store a first key of the pair on the client device, and secure access to it by associated biometric data. The second key of the pair is stored on the remote server in association with the user'"'"'s account. Responsive to a request on the application for an action that requires authentication with the remote server, the user must input biometric data which, only if verified, enables access to use the first key. The first key is then used to encrypt authentication data for submission to the remote server. The server accesses the public key and uses it to decrypt the data and verify the source of the request. If verified, the server then authorizes the requested action.

Claims

1. A computer system, comprising:

a network interface configured to transmit data over a network;

a biometric sensor configured to acquire biometric data of a user;

a secure storage element configured to store data including the biometric data acquired by the biometric sensor;

an input device;

one or more hardware processors operatively coupled to the network interface, the biometric sensor, the secure storage element, and the input device; and

memory operatively coupled to the one or more hardware processors, the memory storing an operating system and an application program that includes instructions executable by the one or more hardware processors that, as a result of execution by the one or more hardware processors, cause the one or more hardware processors to;

establish a secure session between the computer system and a server using a user credential;

responsive to receiving a selection via the input device for authentication using the biometric data, configure the application program for authentication using the biometric data, and generate an asymmetric cryptographic key pair;

store a first key of the cryptographic key pair in the secure storage element via the operating system, without storing the user credential in the secure storage element, wherein access to the first key is secured by the biometric data;

transmit a second key of the cryptographic key pair to the server via the network for storage in association with a user account associated with the user;

responsive to receiving a request to perform an action that requires the application program to authenticate an identity of the user of the computing system with the server, activate a presentation device associated with the computer system so as to prompt the user to input new biometric data using the biometric sensor;

responsive to the operating system authenticating the identity of the user using the new biometric data, retrieve the first key via the operating system from the secure storage element;

encrypt an authentication data object using the first key to form an encrypted data object;

transmit the encrypted data object to the server to enable the server to authorize the action that required authentication in lieu of the user credential, based on decrypting the encrypted data object using the stored second key; and

as a result of authorization by the server responsive to the decrypting of the encrypted data object using the stored second key, proceed to conduct the action requested.

2. The computer system of claim 1, further comprising:

a server having a network interface configured to transmit and receive data over a network, the server further having one or more server processors operatively coupled to the network interface, and having a memory storing instructions executable by the one or more server processors that, as a result of execution by the one or more server processors, cause the one or more server processors to;

receive a first message via the network, the first message including a second key of an asymmetric cryptographic key pair;

identify a user associated with the first message, and store the second key in association with a user account associated with the identified user;

receive a second message via the network, the second message including an encrypted data object submitted for authorization to conduct a restricted action on the server;

identify a user account associated with the second message;

access the second key;

utilize the second key to decrypt the encrypted data object;

verify the decrypted data object; and

responsive to verification of the decrypted data object, authorize the restricted action without receiving a user credential in connection with the request.

3. The computer system of claim 2 wherein:

the one or more server processors are further configured to;

responsive to the second message, before authorizing the requested action, transmit a challenge request to the computer system via the network, the challenge request specifying challenge information;

receive a response to the challenge request including the specified challenge information;

validate the received challenge information; and

responsive to validation of the received challenge information, authorize the requested action.

20. The computer system of claim 1, wherein the user credential comprises at least a user identification and a password.

4. A computer-implemented method, comprising:

authenticating an identity of a user, and storing user personal authentication data;

obtaining an asymmetric encryption key pair;

storing a first key of the key pair in a secure storage element of a device by way of an operating system of the device, wherein access to the first key is secured by the user personal authentication data stored on the device, and wherein the user personal authentication data is required to access the first key, wherein the user personal authentication data comprises data of at least one of biometric data, private user knowledge data, or possession of an object;

sending a second key of the pair to a remote server for storage in association with a user account, wherein the first key is a designated as a private key and the second key is designated as a public key;

responsive to receiving a request that requires authentication with the remote server to permit a restricted action, request input of the user personal authentication data, and verify the identity of the user based on the input user personal authentication data;

as a result of verification of the user identity, access the stored first key and utilize the first key to generate a cryptographically verifiable object, wherein the cryptographically verifiable object is generated by encrypting a nonce using the first key so as to be decryptable by the remote server using the second key, where decrypting the cryptographically verifiable object using the second key serves as cryptographic verification of the cryptographically verifiable object; and

sending the cryptographically verifiable object to the remote server to enable the server to authorize the restricted action without the user personal authentication data or a user credential.

5. The method of claim 4 wherein the restricted action includes a purchase transaction.

6. The method of claim 4 further comprising:

responsive to detecting that the device has dissociated from the user account, dissociating the stored first key from the user account; and

resetting the first key stored in the remote server to a new key value received from the device, wherein the new key value is complementary to a new complementary key value securely stored on the device, while maintaining an existing user credential, and allowing access to the user account on the server from a different device based on the existing user credential.

7. The method of claim 6 wherein the object includes components to enable communication with the device comprising at least one of (a) near field communication, (b) short-range wireless communication, (c) WiFi connection, (d) wireless telecom network communication, (e) radio frequency communication, or (f) a physical cable connection to the device.

8. The method of claim 6 wherein the user personal authentication data comprises the biometric data acquired by at least one of a capacitive sensor, retinal scanner, infrared imaging sensor, microphone for voice recognition, or an optical sensor for facial recognition.

9. The method of claim 6 wherein sending a second key of the pair to the remote server includes authenticating to the remote server a source of the second key as one associated with an account on the remote server.

10. The method of claim 9 wherein authenticating the source of the second key includes sending authentication data unique to the user account, and encrypting the authentication data unique to the user account using the first key.

11. A method in a server system, comprising:

receiving a request from a device to conduct a restricted action on the server system, the request including a cryptographically verifiable authentication data object, wherein the cryptographically verifiable authentication data object includes authentication data compliant with a predefined authentication protocol established between the device and the server system, wherein the cryptographically verifiable authentication data object is encrypted according to the device-specific first key stored in the device other than the server for use in authentication to the server in lieu of a user credential, wherein access to the device specific first key is secured by biometric data associated with a user account;

identifying the user account associated with the request;

using a second key previously stored on the server system in association with the identified user account, verifying authenticity of the data object by programmatically interrogating the data object, wherein the first and second keys form an asymmetric cryptographic key pair; and

responsive to the authenticity being verified, authorizing the restricted action to be taken in the server system.

12. The method of claim 11 wherein:

the server system comprising an e-commerce server system, and the restricted action includes a purchase transaction.

13. The method of claim 11 wherein:

the first key is a designated as a private key and the second key is designated as a public key.

14. The method of claim 11 wherein:

the cryptographically verifiable data object includes nonce data; and

wherein verifying authenticity of the data object includes analyzing the nonce data.

15. The method of claim 11 wherein:

the cryptographically verifiable data object comprises authentication data unique to the user account, and verifying authenticity of the data object includes comparing the authentication data to stored data associated with the user account.

16. The method of claim 15 wherein:

the authentication data unique to the user account comprises the biometric data unique to the device.

17. The method of claim 11, further comprising:

responsive to detecting that the device has dissociated from the user account, dissociating the stored first key from the user account; and

resetting the first key stored in the server to a new key value received from the device, wherein the new key value is complementary to a new complementary key value securely stored on the device, while maintaining an existing user credential, and allowing access to the user account on the server from a different device based on the existing user credential.

18. The method of claim 11 and further comprising:

responsive to the authenticity being verified using the second key, sending a challenge message to the device to request additional challenge data associated with the user account before authorizing the selected actions;

receiving a response to the challenge message including the requested challenge data;

verifying the requested challenge data; and

then

responsive to verification of the requested challenge data, authorizing the selected actions.

19. The method of claim 11 wherein:

the request is received at a server system comprising an e-commerce server system, and the restricted action includes a purchase transaction.