![Marcus Brinkmann on Twitter: "We get an introduction to fine-grained crypto. Classical OWF is polytime and inversion is superpoly. A FC OWF is O(n^c) for evaluation and Omega(n^(c+d)) for inversion by attacker. Marcus Brinkmann on Twitter: "We get an introduction to fine-grained crypto. Classical OWF is polytime and inversion is superpoly. A FC OWF is O(n^c) for evaluation and Omega(n^(c+d)) for inversion by attacker.](https://pbs.twimg.com/media/ECl0JIuUwAA2Xdx.jpg)
Marcus Brinkmann on Twitter: "We get an introduction to fine-grained crypto. Classical OWF is polytime and inversion is superpoly. A FC OWF is O(n^c) for evaluation and Omega(n^(c+d)) for inversion by attacker.
The Elastic Retreat #90 - Merkle Puzzle for Leppo of Vaporbat Records - It is by ᖶᕼᘿ ᘿᒪᗩSᖶᓰᑢ ᖇᘿᖶᖇᘿᗩᖶ | Mixcloud
![Day 75: Merkle's puzzles. Merkle's puzzles present very nice… | by Tomáš Bouda | 100 days of algorithms | Medium Day 75: Merkle's puzzles. Merkle's puzzles present very nice… | by Tomáš Bouda | 100 days of algorithms | Medium](https://miro.medium.com/v2/resize:fit:567/1*SV4xyIHZGUf6CeN_XWVc7Q.png)