Add identity table

schema.sql

@@ -4,7 +4,30 @@
 --    is set to 1 after a public key with (confirm='', status=0) has been imported
 --    is set to 2 if a key should be deleted (will be deleted based on email address)
 -- publickey is the ASCII-armored PGP public key; can be cleared to save space if status > 0
-CREATE TABLE gpgmw_keys (id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, email VARCHAR(256), publickey TEXT, confirm VARCHAR(32), status INT NOT NULL DEFAULT 0, time TIMESTAMP DEFAULT CURRENT_TIMESTAMP);
+CREATE TABLE gpgmw_keys (
+	id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
+	email VARCHAR(256),
+	publickey TEXT,
+	confirm VARCHAR(32),
+	status INT NOT NULL DEFAULT 0,
+	time TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
 
 -- see include/lock.php for documentation
-CREATE TABLE gpgmw_locks (id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, ip VARCHAR(16), time INT, action VARCHAR(16), num INT);
+CREATE TABLE gpgmw_locks (
+	id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
+	ip VARCHAR(16),
+	time INT,
+	action VARCHAR(16),
+	num INT
+);
+
+-- GnuPG identities known to Lacre.
+--
+-- This table can be used instead of the file-based key store (pubring.kbx).
+-- Set Lacre configuration option [keyring]type to 'database' to use this
+-- table.
+CREATE TABLE gpgmw_identities (
+	email VARCHAR (256) NOT NULL PRIMARY KEY,
+	fingerprint VARCHAR (64) NOT NULL
+);