Assuming that a typical image has 243.3 k Bytes, or 1 993 221 bits. And that a hash has 64 bits.
Then there are 2^1 993 221 different images, and 2^64 hash values. One hash value is thus shared on average by 2^1 993 157 images. = (2^10)^199 315.7 = 10^600 000 So it does not look so very unlikely that two different images might share a hash value. Or did I make some mistake? Gerriet. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com