Encryption Device. DiskCypher The DiskCypher is a hard drive encryption device that provides the most secure, cost effective and easy way to protect digital evidence in the field as well as during transport. This device has the capability to encrypt "on the fly" and works transparently with Solo III Forensic Acquisition Device. DiskCypher will encrypt data during the acquisition process utilizing the NIST approved AES 192 algorithm and at SATA speeds.