Patent ID: 11928223
Assignee: BANK OF AMERICA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A system for implementing enhanced file encryption technique, the system comprising:
at least one processing device; and
at least one non-transitory computer-readable medium with computer-readable program code stored thereon and accessible by the at least one processing device, wherein the computer-readable code when executed is configured to cause the at least one processing device to:
encrypt a file using a local file encryption key to generate an encrypted file;
transmit, via an encryption engine, a first encryption request to an encryption server to encrypt a first portion of the encrypted file;
receive, from the encryption server, an encrypted first portion of the encrypted file based on at least the first encryption request, wherein the first portion of the encrypted file is encrypted by the encryption server using a first file encryption key;
append the encrypted first portion of the encryption file with a remaining portion of the encrypted file to generate a final encrypted file;
transmit, via the encryption engine, a second encryption request to the encryption server to encrypt the local file encryption key;
receive, from the encryption server, an encrypted local file encryption key based on at least the second encryption request;
update the final encrypted file with the encrypted local file encryption key, wherein updating further comprises appending the encrypted local file encryption key with the first portion of the encrypted file and the remaining portion of the encrypted file;
calculate a checksum for the encrypted file;
update the final encrypted file with the encrypted checksum;
store the final encrypted file in a data repository;
receive an access request from a computing device associated with a user to access the file;
initiate an authentication protocol to determine whether the user is authorized to access the file;
decrypt the final encrypted file based on at least determining that the user is authorized to access the file, wherein decrypting further comprises:
retrieving the final encryption file from the data repository; and
extracting, from the final encryption file, the encrypted first portion of the encrypted file, and the remaining portion of the encrypted file;
receiving, in response to a first decryption request, the first portion of the encrypted file decrypted using the first file encryption key;
appending the first portion of the encrypted file to the remaining portion of the encrypted file to generate an appended encrypted file;
comparing the checksum of the appended encrypted file with the checksum of the encrypted file to determine a match; and
determining that the appended encrypted file is identical the encrypted file based on at least the match.