1 files changed, 75 insertions, 0 deletions

diff --git a/src/zklaim/zklaim_functions.c b/src/zklaim/zklaim_functions.c
new file mode 100644
index 000000000..1c66b421c
--- /dev/null
+++ b/src/zklaim/zklaim_functions.c
@@ -0,0 +1,75 @@
+#include "platform.h"
+#include "zklaim/zklaim.h"
+#include "gcrypt.h"
+#include "gnunet_zklaim_service.h"
+#include "zklaim_functions.h"
+
+int
+ZKLAIM_context_sign (struct GNUNET_ZKLAIM_Context *ctx,
+                     const struct GNUNET_CRYPTO_EcdsaPrivateKey *key)
+{
+  int rc;
+  gcry_sexp_t priv;
+
+  //TODO how to ensure not hashed??
+  zklaim_hash_ctx (ctx->ctx);
+  rc = gcry_sexp_build (&priv, NULL,
+                        "(private-key(ecc(curve \"Ed25519\")"
+                        "(d %b)))",
+                        (int) sizeof (key->d), key->d);
+  if (0 != rc)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "GCRY error...\n");
+    //send_issue_response (ih, NULL, 0);
+    return GNUNET_SYSERR;
+  }
+  return zklaim_ctx_sign (ctx->ctx, priv);
+}
+
+void
+ZKLAIM_context_attributes_iterate (const struct GNUNET_ZKLAIM_Context *ctx,
+                                   GNUNET_ZKLAIM_PayloadIterator iter,
+                                   void *iter_cls)
+{
+  int i;
+  int j;
+  uint64_t data;
+  char *attr_name;
+  char *tmp;
+  zklaim_wrap_payload_ctx *plw;
+
+  tmp = GNUNET_strdup (ctx->attrs);
+  attr_name = strtok (tmp, ",");
+  plw = ctx->ctx->pl_ctx_head;
+
+  for (i = 0; i < ctx->ctx->num_of_payloads; i++)
+  {
+    for (j = 0; j < ZKLAIM_MAX_PAYLOAD_ATTRIBUTES; j++)
+    {
+      GNUNET_assert (NULL != attr_name);
+      iter (iter_cls, attr_name, &data);
+      zklaim_set_attr (&plw->pl,
+                       data,
+                       j);
+      attr_name = strtok (NULL, ",");
+    }
+    plw = plw->next;
+    GNUNET_assert (NULL != plw);
+  }
+  GNUNET_free (tmp);
+
+}
+
+void
+ZKLAIM_context_issue (struct GNUNET_ZKLAIM_Context *ctx,
+                      const struct GNUNET_CRYPTO_EcdsaPrivateKey *key,
+                      GNUNET_ZKLAIM_PayloadIterator iter,
+                      void *iter_cls)
+{
+  ZKLAIM_context_attributes_iterate (ctx,
+                                     iter,
+                                     iter_cls);
+  ZKLAIM_context_sign (ctx,
+                       key);
+}