Constify sign and verify ops

2 files changed, 5 insertions, 6 deletions

diff --git a/src/pubkey/gost_3410/gost_3410.cpp b/src/pubkey/gost_3410/gost_3410.cpp
index 9a7681cb2..c5cc1ddbd 100644
--- a/src/pubkey/gost_3410/gost_3410.cpp
+++ b/src/pubkey/gost_3410/gost_3410.cpp
@@ -78,9 +78,8 @@ GOST_3410_Signature_Operation::GOST_3410_Signature_Operation(
    }
 
 SecureVector<byte>
-GOST_3410_Signature_Operation::sign(const byte msg[],
-                                    u32bit msg_len,
-                                    RandomNumberGenerator& rng)
+GOST_3410_Signature_Operation::sign(const byte msg[], u32bit msg_len,
+                                    RandomNumberGenerator& rng) const
    {
    BigInt k;
    do
@@ -118,7 +117,7 @@ GOST_3410_Verification_Operation::GOST_3410_Verification_Operation(const GOST_34
    }
 
 bool GOST_3410_Verification_Operation::verify(const byte msg[], u32bit msg_len,
-                                              const byte sig[], u32bit sig_len)
+                                              const byte sig[], u32bit sig_len) const
    {
    if(sig_len != order.bytes()*2)
       return false;
diff --git a/src/pubkey/gost_3410/gost_3410.h b/src/pubkey/gost_3410/gost_3410.h
index b10421a02..d3309b8f1 100644
--- a/src/pubkey/gost_3410/gost_3410.h
+++ b/src/pubkey/gost_3410/gost_3410.h
@@ -108,7 +108,7 @@ class BOTAN_DLL GOST_3410_Signature_Operation : public PK_Ops::Signature
       u32bit max_input_bits() const { return order.bits(); }
 
       SecureVector<byte> sign(const byte msg[], u32bit msg_len,
-                              RandomNumberGenerator& rng);
+                              RandomNumberGenerator& rng) const;
 
    private:
       const PointGFp& base_point;
@@ -128,7 +128,7 @@ class BOTAN_DLL GOST_3410_Verification_Operation : public PK_Ops::Verification
       bool with_recovery() const { return false; }
 
       bool verify(const byte msg[], u32bit msg_len,
-                  const byte sig[], u32bit sig_len);
+                  const byte sig[], u32bit sig_len) const;
    private:
       const PointGFp& base_point;
       const PointGFp& public_point;