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295 <p class="toc_h2"><a href="#9_9_full-disk-encryption">9.9. Full-Disk Encryption</a></p>
4223 <h2 id="9_9_full-disk_encryption">9.9. Full-Disk Encryption</h2>
4231 PASSWORD (alphanumeric), the device MUST support full-disk encryption of the
4234 [<a href="http://source.android.com/devices/tech/security/encryption/index.html">Resources, 107</a>]. For devices supporting full-disk encryption, the full-disk encryption SHOULD
4238 Encryption MUST use AES with a key of 128-bits (or greater) and a mode designed
4239 for storage (for example, AES-XTS, AES-CBC-ESSIV). The encryption key MUST NOT
4241 active use, the encryption key SHOULD be AES encrypted with the lockscreen
4244 passcode for encryption, the system SHOULD use a default passcode to wrap the
4245 encryption key. If the device provides a hardware-backed keystore, the password
4247 encryption key MUST NOT be sent off the device (even when wrapped with the user
4498 <td>9.9. Full-Disk Encryption</td>
4499 <td>Clarified condition when Full-Disk encryption support is mandatory.</td>
4747 <p>107. Android Open Source Encryption: <a href="http://source.android.com/devices/tech/security/encryption/index.html">http://source.android.com/devices/tech/security/encryption/index.html</a></p>