Patent ID: 11899803
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:
receive a request from a computing device of a user to encrypt a file;
encrypt the 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; store the final encrypted file in a data repository; calculate a checksum for the encrypted file;
transmit, via the encryption engine, a second encryption request to the encryption server to encrypt the checksum;
receive, from the encryption server, an encrypted checksum based on at least the second encryption request, wherein the checksum is encrypted by the encryption server using a second file encryption key;
update the final encrypted file with the encrypted checksum, wherein updating further comprises appending the encrypted checksum with the first portion of the encrypted file, and the remaining portion of the encrypted file;
transmit, via the encryption engine, a third 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 third encryption request; and
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 encrypted checksum, the first portion of the encrypted file, and the remaining portion of the encrypted file.