https://github.com/jbowens/checkpassword

Check passwords offline against haveibeenpwned.com's SHA1 password list
https://github.com/jbowens/checkpassword

haveibeenpwned password-safety passwords

Last synced: 4 months ago
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Check passwords offline against haveibeenpwned.com's SHA1 password list

• Host: GitHub
• URL: https://github.com/jbowens/checkpassword
• Owner: jbowens
• License: mit
• Created: 2019-04-28T17:27:07.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-06-18T02:48:37.000Z (over 6 years ago)
• Last Synced: 2024-06-20T12:40:48.262Z (over 1 year ago)
• Topics: haveibeenpwned, password-safety, passwords
• Language: Go
• Homepage:
• Size: 5.86 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# checkpassword

This command checks passwords against [haveibeenpwned.com's alphbetized, SHA1 password list](~/pwned-passwords-sha1-ordered-by-hash-v4.txt).

The latest password list as of writing is 23GB uncompressed, so a naive text search can be slow and memory-intensive.

This program mmaps the file and binary searches over it.

This approach is fast and has minor memory usage.

```

go get github.com/jbowens/checkpassword

go install github.com/jbowens/checkpassword

checkpassword -file ~/pwned-passwords-sha1-ordered-by-hash-v4.txt "password"

```