2 files changed, 6 insertions, 1 deletions
diff --git a/src/crypto/crypto.cpp b/src/crypto/crypto.cpp
index f0ee3bdc3..250779ac3 100644
--- a/src/crypto/crypto.cpp
+++ b/src/crypto/crypto.cpp
@@ -151,7 +151,7 @@ namespace crypto {
     return true;
   }
 
-  static void derivation_to_scalar(const key_derivation &derivation, size_t output_index, ec_scalar &res) {
+  void crypto_ops::derivation_to_scalar(const key_derivation &derivation, size_t output_index, ec_scalar &res) {
     struct {
       key_derivation derivation;
       char output_index[(sizeof(size_t) * 8 + 6) / 7];
diff --git a/src/crypto/crypto.h b/src/crypto/crypto.h
index aa437d57d..b396fc7db 100644
--- a/src/crypto/crypto.h
+++ b/src/crypto/crypto.h
@@ -113,6 +113,8 @@ namespace crypto {
     friend bool secret_key_to_public_key(const secret_key &, public_key &);
     static bool generate_key_derivation(const public_key &, const secret_key &, key_derivation &);
     friend bool generate_key_derivation(const public_key &, const secret_key &, key_derivation &);
+    static void derivation_to_scalar(const key_derivation &derivation, size_t output_index, ec_scalar &res);
+    friend void derivation_to_scalar(const key_derivation &derivation, size_t output_index, ec_scalar &res);
     static bool derive_public_key(const key_derivation &, std::size_t, const public_key &, public_key &);
     friend bool derive_public_key(const key_derivation &, std::size_t, const public_key &, public_key &);
     static void derive_secret_key(const key_derivation &, std::size_t, const secret_key &, secret_key &);
@@ -181,6 +183,9 @@ namespace crypto {
     const public_key &base, public_key &derived_key) {
     return crypto_ops::derive_public_key(derivation, output_index, base, derived_key);
   }
+  inline void derivation_to_scalar(const key_derivation &derivation, size_t output_index, ec_scalar &res) {
+    return crypto_ops::derivation_to_scalar(derivation, output_index, res);
+  }
   inline void derive_secret_key(const key_derivation &derivation, std::size_t output_index,
     const secret_key &base, secret_key &derived_key) {
     crypto_ops::derive_secret_key(derivation, output_index, base, derived_key);