* Shorten SHA-256 hashes used in store path name generation to 160

  bits, then encode them in a radix-32 representation (using digits
  and letters except e, o, u, and t).  This produces store paths like
  /nix/store/4i0zb0z7f88mwghjirkz702a71dcfivn-aterm-2.3.1.  The nice
  thing about this is that the hash part of the file name is still 32
  characters, as before with MD5.

  (Of course, shortening SHA-256 to 160 bits makes it no better than
  SHA-160 in theory, but hopefully it's a bit more resistant to
  attacks; it's certainly a lot slower.)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/nix-hash/nix-hash.cc b/src/nix-hash/nix-hash.cc
index 360e07960b0e..2cef7818e857 100644
--- a/src/nix-hash/nix-hash.cc
+++ b/src/nix-hash/nix-hash.cc
@@ -29,8 +29,8 @@ void run(Strings args)
             else throw UsageError(format("unknown hash type `%1%'") % *i);
         }
         else
-            cout << format("%1%\n") % (string)
-                (flat ? hashFile(*i, ht) : hashPath(*i, ht));
+            cout << format("%1%\n") % printHash(
+                (flat ? hashFile(*i, ht) : hashPath(*i, ht)));
     }
 }