OpenSSL encrypt/decrypt files.
Note
View on stackoverflow: Link
1. To encrypt
openssl enc -aes-256-cbc -in un_encrypted.data -out encrypted.data
2. To decrypt
//with password prompt
openssl enc -d -aes-256-cbc -in encrypted.data -out un_encrypted.data
//without password prompt
openssl enc -d -aes-256-cbc -in encrypted.data -out un_encrypted.data -k [MyPassword]
e.g. openssl enc -d -aes-256-cbc -in encrypted.data -out un_encrypted.data -k 123456789