1 files changed, 75 insertions, 0 deletions
diff --git a/contrib/librdns/rdns_curve.h b/contrib/librdns/rdns_curve.h
new file mode 100644
index 000000000..365e91bb1
--- /dev/null
+++ b/contrib/librdns/rdns_curve.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2014, Vsevolod Stakhov
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *	 * Redistributions of source code must retain the above copyright
+ *	   notice, this list of conditions and the following disclaimer.
+ *	 * Redistributions in binary form must reproduce the above copyright
+ *	   notice, this list of conditions and the following disclaimer in the
+ *	   documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef RDNS_CURVE_H_
+#define RDNS_CURVE_H_
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+struct rdns_curve_ctx;
+
+/**
+ * Create new dnscurve ctx
+ * @return
+ */
+struct rdns_curve_ctx* rdns_curve_ctx_new (double rekey_interval);
+
+/**
+ * Add key for server `name`
+ * @param ctx curve context
+ * @param name name of server (ip address)
+ * @param pubkey pubkey bytes (must be `RDSN_CURVE_PUBKEY_LEN`)
+ */
+void rdns_curve_ctx_add_key (struct rdns_curve_ctx *ctx,
+		const char *name, const unsigned char *pubkey);
+
+/**
+ * Destroy curve context
+ * @param ctx
+ */
+void rdns_curve_ctx_destroy (struct rdns_curve_ctx *ctx);
+
+
+/**
+ * Register DNSCurve plugin (libsodium should be enabled for this)
+ * @param resolver
+ * @param ctx
+ */
+void rdns_curve_register_plugin (struct rdns_resolver *resolver,
+		struct rdns_curve_ctx *ctx);
+
+/**
+ * Create DNSCurve key from the base16 encoded string
+ * @param hex input hex (must be NULL terminated)
+ * @return a key or NULL (not NULL terminated)
+ */
+unsigned char * rdns_curve_key_from_hex (const char *hex);
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* RDNS_CURVE_H_ */