> For the complete documentation index, see [llms.txt](https://ed4m4s.blog/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ed4m4s.blog/password-attacks/passwords.md).

# Passwords

### Recognize the passwords used. 

```
if the hash starts by $1$, MD5 is used;
if the hash starts by $2$ or $2a$, Blowfish is used;
if the hash starts by $5$, SHA-256 is used;
if the hash starts by $6$, SHA-512 is used.
```

#### Search for Hashes under kali.

```
hashcat --example-hashes
```