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-rw-r--r--src/zklaim/zklaim.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/src/zklaim/zklaim.c b/src/zklaim/zklaim.c
new file mode 100644
index 000000000..a53c193d1
--- /dev/null
+++ b/src/zklaim/zklaim.c
@@ -0,0 +1,79 @@
+/*
+ This file is part of GNUnet. Copyright (C) 2001-2018 Christian Grothoff
+ (and other contributing authors)
+
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+/**
+ * @file abe/abe.c
+ * @brief functions for Attribute-Based Encryption
+ * @author Martin Schanzenbach
+ */
+
+
+#include "platform.h"
+#include <zklaim/zklaim.h>
+#include "gnunet_crypto_lib.h"
+
+struct GNUNET_ZKLAIM_Context
+{
+ zklaim_ctx* ctx;
+ gcry_sexp_t priv;
+ gcry_sexp_t pub;
+};
+
+struct GNUNET_ZKLAIM_Payload
+{
+ zklaim_payload pl;
+};
+
+struct GNUNET_ZKLAIM_Context*
+GNUNET_ZKLAIM_new ()
+{
+ struct GNUNET_ZKLAIM_Context *ctx;
+ unsigned char *pubbuf;
+ size_t publen;
+
+ ctx = GNUNET_new (struct GNUNET_ZKLAIM_Context);
+ ctx->ctx = zklaim_context_new();
+ zklaim_pub2buf(ctx->pub, &pubbuf, &publen);
+ zklaim_gen_pk(&ctx->priv);
+ zklaim_get_pub(ctx->priv, &ctx->pub);
+ if (sizeof(ctx->ctx->pub_key) != publen) {
+ printf("size mismatch!");
+ return NULL;
+ }
+
+ memcpy(ctx->ctx->pub_key, pubbuf, sizeof(ctx->ctx->pub_key));
+ free(pubbuf);
+ return ctx;
+}
+
+int
+GNUNET_ZKLAIM_add_payload (struct GNUNET_ZKLAIM_Context *ctx,
+ struct GNUNET_ZKLAIM_Payload *pl)
+{
+ zklaim_add_pl (ctx->ctx, pl->pl);
+ return GNUNET_OK;
+}
+
+int
+GNUNET_ZKLAIM_finalize (struct GNUNET_ZKLAIM_Context *ctx)
+{
+ zklaim_hash_ctx (ctx->ctx);
+ zklaim_ctx_sign (ctx->ctx, ctx->priv);
+ return 1;
+}