> For the complete documentation index, see [llms.txt](https://trizen.gitbook.io/sidef-lang/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trizen.gitbook.io/sidef-lang/programming_tasks/m/md5.md).

# MD5

```ruby
var digest = frequire('Digest::MD5')
say digest.md5_hex("The quick brown fox jumped over the lazy dog's back")
```

The same in OO manner

```ruby
var md5 = require('Digest::MD5').new
md5.add("The quick brown fox jumped over the lazy dog's back")
say md5.hexdigest
```