Encryption support

1 files changed, 23 insertions, 0 deletions

diff --git a/crypto.h b/crypto.h
new file mode 100644
index 00000000..335d63df
--- /dev/null
+++ b/crypto.h
@@ -0,0 +1,23 @@
+#ifndef _CRYPTO_H
+#define _CRYPTO_H
+
+#include "util.h"
+
+struct bcache_key {
+	u64	key[4];
+};
+
+struct bcache_disk_key {
+	u64	header;
+	u64	key[4];
+};
+
+static const char bch_key_header[8]		= BCACHE_MASTER_KEY_HEADER;
+static const struct nonce bch_master_key_nonce	= BCACHE_MASTER_KEY_NONCE;
+
+char *read_passphrase(const char *);
+void derive_passphrase(struct bcache_key *, const char *);
+void disk_key_encrypt(struct bcache_disk_key *, struct bcache_key *);
+void disk_key_init(struct bcache_disk_key *);
+
+#endif /* _CRYPTO_H */