> 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/pt-br/hacking-wifi/wpa-wpa2-psk-network-attacks/precomputed-attacks/cowpatty-cracking-against-a-rainbow-table.md).
# Quebra com Cowpatty Contra uma Tabela Rainbow
Use o Cowpatty com um banco de dados GenPMK pré-computado e um handshake capturado.
Após criar um banco de dados GenPMK, o Cowpatty pode usá-lo para verificar um handshake capturado.
O banco de dados e a captura devem usar o mesmo nome de rede. Aqui, o ESSID é `jordan`.
### Execute a busca
Use o pré-computado `dic.genpmk` banco de dados com a captura:
{% code overflow="wrap" %}
```bash
cowpatty -d dic.genpmk -r Capture-01.cap -s jordan
```
{% endcode %}
Os parâmetros são:
* `-d dic.genpmk` seleciona o banco de dados GenPMK.
* `-r Capture-01.cap` fornece o handshake capturado.
* `-s jordan` define o nome da rede de destino.
O Cowpatty encontra a senha em menos de 0,03 segundos. A taxa de busca é de 445.106 senhas por segundo.
Valores pré-computados tornam a busca muito mais rápida. Eles evitam recalcular cada candidato durante esta etapa.
---
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