mkp224o

Hello, I've built the tool to generate vanity Tor Onion Service addresses: $ onion-vanity-address allium Found allium... in 12s after 558986486 attempts (48529996 attempts/s) --- hostname: alliumdye3it7ko4cuftoni4rlrupuobvio24ypz55qpzjzpvuetzhyd.onion hs_ed25519_public_key: PT0gZWQyNTUxOXYxLXB1YmxpYzogdHlwZTAgPT0AAAAC1ooweCbRP6ncFQs3NRyK40fRwaodrmH572D8py+tCQ== hs_ed25519_secret_key: PT0gZWQyNTUxOXYxLXNlY3JldDogdHlwZTAgPT0AAAAQEW4Rhot7oroPaETlAEG3GPAntvJ1agF2c7A2AXmBW3WqAH0oUZ1hySvvZl3hc9dSAIc49h1UuCPZacOWp4vQ The tool checks ~45'000'000 keys per second on a laptop which is ~2x faster than widely-used mkp224o https://github.com/cathugger/mkp224o I've explained key performance difference here https://github.com/AlexanderYastrebov/onion-vanity-address?t... Would love your feedback, thanks!

Indeed. For anyone unfamiliar with the nature of cryptographic hashes, each character increases the difficulty to get a collision exponentially. ~10 characters are easy enough to generate on a single machine so don't rely on a vanity-prefix and the trailing couple of characters only, but getting a new .onion address matching even half of an existing one within the lifetime of civilization is unrealistic even with state-actor resources. You'd be better off trying to brute-force Satoshi's bitcoin private keys if you're feeling that lucky... https://github.com/cathugger/mkp224o/issues/27

No one can use a v2 onion address any longer. They do not resolve. V3 .onion vanity urls can be created using https://github.com/cathugger/mkp224o

Shallot (at least that version) is for v2 onions only which are truncated sha1 hashes of RSA keys. v3 onions are base32-encoded ed25519 so 7 characters translates to needing to force 35 bits of ed25519, which according to [2] should be in the same ballpark but does not get specific as far as I read. [1]https://gitweb.torproject.org/torspec.git/tree/rend-spec-v3.... [2]https://github.com/cathugger/mkp224o

Adding onto this: I was able to use https://github.com/cathugger/mkp224o to generate my own v3 address with chosen 7-character prefix in just under 1 hour on my i7-8700k I imagine an implementation that leverages a GPU could go much faster.