I've tried and used Disk Utility to create an encrypted image, so I can store data in it securely. However, when I tried to write files to this image, the write operation was too slow (to write ~50 GB of data, it would take 1 day as estimated).
My question: is there a robust alternative that allows creating an encrypted space in the hard disk to store data with fast read/write operations?
Edit: Adding details:
Apple MacBook Pro (15-inch, Mid 2012)
Processor : 2.6 GHz Intel Core i7
Memory : 8 GB 1600 MHz DDR3
Hard drive : APPLE HDD HTS547575A9E384
- Rotational Rate: 5400
- Partition Map Type: GPT (GUID Partition Table)
- OS version : 10.12.1
I am transferring data to an encrypted image on the hard drive. Its encryption type is 128-bit AES.
Source of data
The external hard drive that I am transferring data from : StoreJet Transcend Media.
- Partition Map Type : GPT (GUID Partition Table)
- Encrypted. Encryption Type : AES-XTS