Commit fe4f6c80 authored by Theodore Ts'o's avatar Theodore Ts'o

fscrypt: fix the test_dummy_encryption mount option

Commit f1c131b4: "crypto: xts - Convert to skcipher" now fails
the setkey operation if the AES key is the same as the tweak key.
Previously this check was only done if FIPS mode is enabled.  Now this
check is also done if weak key checking was requested.  This is
reasonable, but since we were using the dummy key which was a constant
series of 0x42 bytes, it now caused dummy encrpyption test mode to

Fix this by using 0x42... and 0x24... for the two keys, so they are

Fixes: f1c131b4
Signed-off-by: default avatarTheodore Ts'o <>
parent 7ce7d89f
......@@ -248,7 +248,8 @@ int fscrypt_get_crypt_info(struct inode *inode)
goto out;
if (fscrypt_dummy_context_enabled(inode)) {
memset(raw_key, 0x42, FS_AES_256_XTS_KEY_SIZE);
memset(raw_key, 0x42, keysize/2);
memset(raw_key+keysize/2, 0x24, keysize - (keysize/2));
goto got_key;
Markdown is supported
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment