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-rw-r--r--src/include/taler_crypto_lib.h22
1 files changed, 17 insertions, 5 deletions
diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h
index cfd588a52..5b45661b7 100644
--- a/src/include/taler_crypto_lib.h
+++ b/src/include/taler_crypto_lib.h
@@ -197,33 +197,45 @@ struct TALER_MasterSignatureP
/**
- * Type of public keys for Taler coins.
+ * Type of public keys for Taler coins. The same key material is used
+ * for ECDSA and ECDHE operations.
*/
union TALER_CoinSpendPublicKeyP
{
/**
- * Taler uses ECDSA for coins.
+ * Taler uses ECDSA for coins when signing deposit requests.
*/
struct GNUNET_CRYPTO_EcdsaPublicKey ecdsa_pub;
+
+ /**
+ * Taler uses ECDH(E) for coin linkage during refresh operations.
+ */
+ struct GNUNET_CRYPTO_EcdhePublicKey ecdhe_pub;
};
/**
- * Type of private keys for Taler coins.
+ * Type of private keys for Taler coins. The same key material is used
+ * for ECDSA and ECDHE operations.
*/
union TALER_CoinSpendPrivateKeyP
{
/**
- * Taler uses ECDSA for coins.
+ * Taler uses ECDSA for coins when signing deposit requests.
*/
struct GNUNET_CRYPTO_EcdsaPrivateKey ecdsa_priv;
+
+ /**
+ * Taler uses ECDHE for coin linkage during refresh operations.
+ */
+ struct GNUNET_CRYPTO_EcdhePrivateKey ecdhe_priv;
};
/**
* Type of signatures made with Taler coins.
*/
-union TALER_CoinSpendSignatureP
+struct TALER_CoinSpendSignatureP
{
/**
* Taler uses ECDSA for coins.