1 files changed, 120 insertions, 0 deletions
diff --git a/src/include/taler_types.h b/src/include/taler_types.h
new file mode 100644
index 00000000..c6c2c020
--- /dev/null
+++ b/src/include/taler_types.h
@@ -0,0 +1,120 @@
+/**
+ * @file include/types.h
+ * @brief This files defines the various data and message types in TALER.
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Florian Dold
+ */
+
+#ifndef TYPES_H_
+#define TYPES_H_
+
+#include "taler_rsa.h"
+
+
+/**
+ * Public information about a coin.
+ */
+struct TALER_CoinPublicInfo
+{
+  /**
+   * The coin's public key.
+   */
+  struct GNUNET_CRYPTO_EcdsaPublicKey coin_pub;
+
+  /*
+   * The public key signifying the coin's denomination.
+   */
+  struct TALER_RSA_PublicKeyBinaryEncoded denom_pub;
+
+  /**
+   * Signature over coin_pub by denom_pub.
+   */
+  struct TALER_RSA_Signature denom_sig;
+};
+
+
+/**
+ * Request to withdraw coins from a reserve.
+ */
+struct TALER_WithdrawRequest
+{
+  /**
+   * Signature over the rest of the message
+   * by the withdraw public key.
+   */
+  struct GNUNET_CRYPTO_EddsaSignature sig;
+
+  /**
+   * Purpose must be TALER_SIGNATURE_WITHDRAW.
+   */
+  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+
+  /**
+   * Reserve public key.
+   */
+  struct GNUNET_CRYPTO_EddsaPublicKey reserve_pub;
+
+  /**
+   * Denomination public key for the coin that is withdrawn.
+   */
+  struct TALER_RSA_PublicKeyBinaryEncoded denomination_pub;
+
+  /**
+   * Purpose containing coin's blinded public key.
+   */
+  struct TALER_RSA_BlindedSignaturePurpose coin_envelope;
+};
+
+
+
+/**
+ * Data type for messages
+ */
+struct TALER_MessageHeader
+{
+  /**
+   * The type of the message in Network-byte order (NBO)
+   */
+  uint16_t type;
+
+  /**
+   * The size of the message in NBO
+   */
+  uint16_t size;
+};
+
+/*****************/
+/* Message types */
+/*****************/
+
+/**
+ * The message type of a blind signature
+ */
+#define TALER_MSG_TYPE_BLINDED_SIGNATURE  1
+
+/**
+ * The message type of a blinded message
+ */
+#define TALER_MSG_TYPE_BLINDED_MESSAGE 2
+
+/**
+ * The message type of an unblinded signature
+ * @FIXME: Not currently used
+ */
+#define TALER_MSG_TYPE_UNBLINDED_SIGNATURE 3
+
+/**
+ * The type of a blinding residue message
+ * @FIXME: Not currently used
+ */
+#define TALER_MSG_TYPE_BLINDING_RESIDUE 4
+
+/**
+ * The type of a message containing the blinding factor
+ */
+#define TALER_MSG_TYPE_BLINDING_FACTOR 5
+
+
+#endif  /* TYPES_H_ */
+
+/* end of include/types.h */