Yosemite Server Backup 8.7.01 and above.
Yosemite Backup uses the RSA Crypto-C libraries to encrypt data being backed up using DES-56, AES-128 and AES-256 encryption. User passwords for the product and media pass phrases are stored in a scrambled form in Yosemite Server Backup's proprietary database. The methods for scrambling the data are not externally usable by third parties and were deemed to not be under export control when it went through the certification process.
User data can be encrypted if the user chooses when data is written to backup media (tape, disk, and optical media) in the course of a backup job. It is not limited to authentication functions.
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