########### Math/Utility Functions ##############
-# see the bottom of page 43 of RFC 4880
+# see the bottom of page 44 of RFC 4880 (http://tools.ietf.org/html/rfc4880#page-44)
sub simple_checksum {
my $bytes = shift;
- return unpack("%32W*",$bytes) % 65536;
+ return unpack("%16C*",$bytes);
}
# calculate the multiplicative inverse of a mod b this is euclid's