> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/hacking-wifi/wpa-wpa2-psk-network-attacks/precomputed-attacks/pyrit-cracking-against-a-rainbow-table.md).
# Pyrit Cracking Against a Rainbow Table
Use Pyrit with a GenPMK database to check a captured WPA/WPA2 handshake.
The `dic.genpmk` database can also be used with Pyrit.
Pyrit uses `attack_cowpatty` to check the precomputed values against the captured handshake. The ESSID must match the one used when creating the database.
### Run the lookup
Use the database, capture, and network name:
{% code overflow="wrap" %}
```bash
pyrit -e jordan -i dic.genpmk -r Capture-01.cap attack_cowpatty
```
{% endcode %}
The parameters are:
* `-e jordan` sets the target network name.
* `-i dic.genpmk` imports the precomputed database.
* `-r Capture-01.cap` provides the captured handshake.
Pyrit finds the password immediately. It checks about 2 million passwords per second.
The precomputed database avoids recalculating each candidate during the lookup.
---
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