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cryptfs: Add Adiantum support

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Adiantum is a crypto method Android is supporting for devices
which don't have AES CPU instructions.  See the paper
"Adiantum: length-preserving encryption for entry-level processors"
(https://eprint.iacr.org/2018/720.pdf) for more details.

We add Adiantum to our list of supported crypto types.

Bug: 112010205
Test: Tested on a device
Change-Id: Ic190a9b90fc8bc077fdc7d60c9d5ae8d8f555025
This commit is contained in:
Greg Kaiser 2018-12-03 11:23:19 -08:00
parent 595172d1e6
commit 8cb4c9ff78
1 changed files with 4 additions and 0 deletions
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4
cryptfs.cpp
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@ -316,6 +316,10 @@ constexpr CryptoType default_crypto_type = CryptoType()
constexpr CryptoType supported_crypto_types[] = {
default_crypto_type,
CryptoType()
.set_property_name("adiantum")
.set_crypto_name("xchacha12,aes-adiantum-plain64")
.set_keysize(32),
// Add new CryptoTypes here. Order is not important.
};