| --- |
| page_title: filemd5 - Functions - Configuration Language |
| description: |- |
| The filemd5 function computes the MD5 hash of the contents of |
| a given file and encodes it as hex. |
| --- |
| |
| # `filemd5` Function |
| |
| `filemd5` is a variant of [`md5`](/terraform/language/functions/md5) |
| that hashes the contents of a given file rather than a literal string. |
| |
| This is similar to `md5(file(filename))`, but |
| because [`file`](/terraform/language/functions/file) accepts only UTF-8 text it cannot be used to |
| create hashes for binary files. |
| |
| Collision attacks have been successfully performed against this hashing |
| function. Before using this function for anything security-sensitive, refer to |
| [RFC 6151](https://tools.ietf.org/html/rfc6151) for updated security |
| considerations applying to the MD5 algorithm. |
