Fix URL links in comment

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3365)
(cherry picked from commit dea0eb2c5452cd4c2160a64a6868e79efeca6e9d)

diff --git a/crypto/ec/ec_mult.c b/crypto/ec/ec_mult.c
index 23b8c3089b2fa82ff9aff624ae3dd01c4d0ae4c3..24ca67a6ef1e71ca11da4942eb25bf19bad50918 100644 (file)
--- a/crypto/ec/ec_mult.c
+++ b/crypto/ec/ec_mult.c
@@ -68,10 +68,14 @@
 #include "ec_lcl.h"
 
 /*
- * This file implements the wNAF-based interleaving multi-exponentation method
- * (<URL:http://www.informatik.tu-darmstadt.de/TI/Mitarbeiter/moeller.html#multiexp>);
- * for multiplication with precomputation, we use wNAF splitting
- * (<URL:http://www.informatik.tu-darmstadt.de/TI/Mitarbeiter/moeller.html#fastexp>).
+ * This file implements the wNAF-based interleaving multi-exponentiation method
+ * Formerly at:
+ *   http://www.informatik.tu-darmstadt.de/TI/Mitarbeiter/moeller.html#multiexp
+ * You might now find it here:
+ *   http://link.springer.com/chapter/10.1007%2F3-540-45537-X_13
+ *   http://www.bmoeller.de/pdf/TI-01-08.multiexp.pdf
+ * For multiplication with precomputation, we use wNAF splitting, formerly at:
+ *   http://www.informatik.tu-darmstadt.de/TI/Mitarbeiter/moeller.html#fastexp
  */
 
 /* structure for precomputed multiples of the generator */