On Thursday, June 26, 2025 at 9:22:14 AM UTC+2 Robert Engels wrote: “ negligible chance of collision” is not scientific. It depends on the use case whether or not it is negligible.
On Jun 26, 2025, at 2:14 AM, Jason E. Aten wrote: negligible chance of collision Thanks Robert. You're just setting me up for the punch line... :) I left out the math to avoid the distraction from the basics of the approach. Pierre, if you want to put a little more rigor around that: Let's assume birthday paradox (always wise) gives you only half the bit-width, and that aggressively we are computing a new hash every femtosecond (to allow CPUs to get a million times faster than today), then you would expect the first collision in 132 bits after 1.721728e+17 years, or 24_596_114 times the time it will take for the earth to be destroyed by the sun becoming a red giant in ~ 7 billion years. That is what is generally meant by "negligible". In English, this means you can neglect hash collisions from consideration. Best wishes, Jason -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/golang-nuts/7866ddd4-f8c5-449d-97f6-854e150517d2n%40googlegroups.com.
