If the key is encrypted, you can save the password somewhere on the disk, and read it in when necessary.

如果加密了密钥，您可以在磁盘的某处保存密码，然后在需要的时候读取它。

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The only way to guarantee that the public key signature is from the owner is for the owner to hand you the key on a disk, in person.

保证公共密钥签名来自所有者的惟一方法是，密钥的所有者亲自把磁盘上的密钥交给您。

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It then saves the XML-encrypted file to disk, as well as the key used for encryption.

然后它将xml加密的文件以及用于加密的密钥保存到磁盘。

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Disk-drive companies were hit hard after key suppliers were knocked out of commission.

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Marvell has dominated every market it has chosen to enter, with superior designs at a premium price: It knocked Texas Instruments out of the disk-drive chip business and rivals Broadcom in key communications markets like Ethernet ports and Wi-Fi radios.

FORBES: Magazine Article