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-rw-r--r--fs/crypto/fscrypt_private.h14
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index 5bb40d0109c8..0f154bdbc14b 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -312,13 +312,13 @@ int fscrypt_init_hkdf(struct fscrypt_hkdf *hkdf, const u8 *master_key,
* outputs are unique and cryptographically isolated, i.e. knowledge of one
* output doesn't reveal another.
*/
-#define HKDF_CONTEXT_KEY_IDENTIFIER 1
-#define HKDF_CONTEXT_PER_FILE_ENC_KEY 2
-#define HKDF_CONTEXT_DIRECT_KEY 3
-#define HKDF_CONTEXT_IV_INO_LBLK_64_KEY 4
-#define HKDF_CONTEXT_DIRHASH_KEY 5
-#define HKDF_CONTEXT_IV_INO_LBLK_32_KEY 6
-#define HKDF_CONTEXT_INODE_HASH_KEY 7
+#define HKDF_CONTEXT_KEY_IDENTIFIER 1 /* info=<empty> */
+#define HKDF_CONTEXT_PER_FILE_ENC_KEY 2 /* info=file_nonce */
+#define HKDF_CONTEXT_DIRECT_KEY 3 /* info=mode_num */
+#define HKDF_CONTEXT_IV_INO_LBLK_64_KEY 4 /* info=mode_num||fs_uuid */
+#define HKDF_CONTEXT_DIRHASH_KEY 5 /* info=file_nonce */
+#define HKDF_CONTEXT_IV_INO_LBLK_32_KEY 6 /* info=mode_num||fs_uuid */
+#define HKDF_CONTEXT_INODE_HASH_KEY 7 /* info=<empty> */
int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context,
const u8 *info, unsigned int infolen,