Encrypt and decrypt files with PGP and AWS Transfer Family

This article discusses how to use PGP encryption with AWS Transfer Family to securely transfer and decrypt sensitive files. The solution provides a comprehensive workflow for encrypting, transferring, and automatically decrypting files in Amazon S3.

• Creates a PGP key pair using GNU Privacy Guard (GPG)
• Stores user configuration and private key in AWS Secrets Manager
• Develops a Transfer Family managed workflow with three main steps: - Decrypt incoming encrypted files - Archive original encrypted files - Delete source files
• Implements an exception handler to manage unencrypted or incorrectly encrypted files
• Sends admin alerts via Amazon SNS for workflow exceptions

The solution simplifies PGP file encryption and decryption, reducing operational complexity for industries handling sensitive data like healthcare and financial services.