SKF Encrypt This program encrypts your files using a key you specify. It is as efficient as file encryption gets, the encrypted file is the same size as the unencrypted file. Cost: $10 Buy full version       Trial version       Publisher: Skacy     Descriptions SKF Encrypt: This program encrypts your files using a key you specify. It is as efficient as file encryption gets, the encrypted file is the same size as the unencrypted file.