To support encryption and decryption of the backups, a new tool
xbcrypt was introduced to Percona XtraBackup.
This utility has been modeled after The xbstream binary to perform encryption and decryption outside of Percona XtraBackup. Xbcrypt has following command line options:
Decrypt data input to output.
Optional input file. If not specified, input will be read from standard input.
Optional output file. If not specified, output will be written to standard output.
File which contains encryption key.
Size of working buffer for encryption in bytes. The default value is 64K.
Display verbose status output.
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