diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h
new file mode 100644
index 0000000..635053f
--- /dev/null
+++ b/crypto/asymmetric_keys/x509_parser.h
@@ -0,0 +1,36 @@
+/* X.509 certificate parser internal definitions
+ *
+ * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <crypto/public_key.h>
+
+struct x509_certificate {
+	struct x509_certificate *next;
+	struct public_key *pub;			/* Public key details */
+	char		*issuer;		/* Name of certificate issuer */
+	char		*subject;		/* Name of certificate subject */
+	char		*fingerprint;		/* Key fingerprint as hex */
+	char		*authority;		/* Authority key fingerprint as hex */
+	time_t		valid_from;
+	time_t		valid_to;
+	enum pkey_algo	pkey_algo : 8;		/* Public key algorithm */
+	enum pkey_algo	sig_pkey_algo : 8;	/* Signature public key algorithm */
+	enum pkey_hash_algo sig_hash_algo : 8;	/* Signature hash algorithm */
+	const void	*tbs;			/* Signed data */
+	size_t		tbs_size;		/* Size of signed data */
+	const void	*sig;			/* Signature data */
+	size_t		sig_size;		/* Size of sigature */
+};
+
+/*
+ * x509_cert_parser.c
+ */
+extern void x509_free_certificate(struct x509_certificate *cert);
+extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);