From c3e244322b6b7234c0234471b07d67bf6a210b91 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 5 Nov 2021 23:01:21 +0100
Subject: more crypto refactoring

---
 src/include/taler_crypto_lib.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'src/include')

diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h
index 0a0be0cb7..8907ca43f 100644
--- a/src/include/taler_crypto_lib.h
+++ b/src/include/taler_crypto_lib.h
@@ -724,6 +724,26 @@ void
 TALER_denom_sig_free (struct TALER_DenominationSignature *denom_sig);
 
 
+/**
+ * Blind coin for blind signing with @a dk using blinding secret @a coin_bks.
+ *
+ * @param dk denomination public key to blind for
+ * @param coin_bks blinding secret to use
+ * @param coin_pub public key of the coin to blind
+ * @param[out] c_hash resulting hashed coin
+ * @param[out] coin_ev blinded coin to submit
+ * @param[out] coin_ev_size number of bytes in @a coin_ev
+ * @return #GNUNET_OK on success
+ */
+enum GNUNET_GenericReturnValue
+TALER_denom_blind (const struct TALER_DenominationPublicKey *dk,
+                   const union TALER_DenominationBlindingKeyP *coin_bks,
+                   const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                   struct TALER_CoinPubHash *c_hash,
+                   void **coin_ev,
+                   size_t *coin_ev_size);
+
+
 /**
  * Create blinded signature.
  *
-- 
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