Move signature support from NarInfo to ValidPathInfo

src/libstore/nar-info.hh

@@ -20,20 +20,6 @@ struct NarInfo : ValidPathInfo
 
     std::string to_string() const;
 
-    /*  Return a fingerprint of the store path to be used in binary
-        cache signatures. It contains the store path, the base-32
-        SHA-256 hash of the NAR serialisation of the path, the size of
-        the NAR, and the sorted references. The size field is strictly
-        speaking superfluous, but might prevent endless/excessive data
-        attacks. */
-    std::string fingerprint() const;
-
-    void sign(const SecretKey & secretKey);
-
-    /* Return the number of signatures on this .narinfo that were
-       produced by one of the specified keys. */
-    unsigned int checkSignatures(const PublicKeys & publicKeys) const;
-
 private:
 
     Strings shortRefs() const;