3 ms·
Obpedantry: In theory rho allows you to recover private keys with work-factor 2^128 (times some small constant depending on how much storage you wish to use), w
by nullc 13y ago
Obpedantry: In theory rho allows you to recover private keys with work-factor 2^128 (times some small constant depending on how much storage you wish to use), which is significantly less than the 2^256 you might expect from "brute force".
Still completely infeasible.
- teraflop 13y agoBut first you have to obtain the public key by finding a preimage of the SHA-256-hashed address. And SHA-256 (with the full number of rounds) currently has no known preimage attacks that are even marginally better than brute force.