-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Am 30.10.2013 18:39, schrieb Robert J. Hansen: >> Well, here's a (rough, and maybe naive) explanation of why I >> assumed that the effort is at least max(a, b): > > If you first encrypt with ROT10 and then with ROT16, the final > strength is not the maximum of (ROT10, ROT16). You may think > that's a silly example, and I grant that it is, but it illuminates > the point pretty well and avoids a lot of difficult math.
But ROT10 and ROT16 fail the condition that breaking them should be substancially harder than applying them. Philipp -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlJxUOwACgkQbtUV+xsoLpp/SQCgxg0xSXLXEzpazQ3TwhXv82JC HNcAnAsmU5WL/naU9LbBAY4GdrtRyoo/ =euUP -----END PGP SIGNATURE----- _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
