Patent ID: 11882226
Assignee: WELLS FARGO BANK, N.A.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. The method of claim 7, wherein the cryptographic key is a first cryptographic key, the method further comprising:
receiving, by the user computing system, the gesture password from the user;
mapping, by the user computing system, the gesture password to the second substitution string;
generating, by the user computing system, a second cryptographic key using the second substitution string as an input to the password authenticated key exchange protocol;
encrypting, by the user computing system, a third challenge response with the second cryptographic key to generate an encrypted third challenge response; and
transmitting, by the user computing system to the relying party computing system, the user identifier and the encrypted third challenge response,
wherein the encrypted third challenge response is configured to be verified by the relying party computing system by:
retrieving the first substitution string based on the user identifier,
generating the second cryptographic key using the second substitution string as an input to the password authenticated key exchange protocol,
decrypting the encrypted third challenge response using the second cryptographic key, and
verifying the third challenge response to re-authenticate the user.