Encrypting/Decrypting Data Procedures

Tool and password files

• Tool file: encryption_tool.sh
• Password file: pass

Change password file permission

• chmod 400 pass
• save it in a safe place (e.g. ~/.ssh/)

Encrypt/Decrypt a single file

• Encryption usage: bash encryption_tool.sh test1/README.md ~/.ssh/pass encrypt
• Decryption usage: bash encryption_tool.sh test1/README.md.enc ~/.ssh/pass decrypt

Encrypt/Decrypt a folder

• Encryption usage: bash encryption_tool.sh test1 ~/.ssh/pass encrypt
• Decryption usage: bash encryption_tool.sh test1 ~/.ssh/pass decrypt