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# :black_nib: Roave\Signature
Sign and validate signed files made easy.
**Note: this is not a cryptographic signing library.**
### Installation
The suggested installation method is via [composer](https://getcomposer.org/):
```bash
$ composer require roave/signature
```
### Usage examples
#### Signing a file
```php
// Creating a signer
$signer = new \Roave\Signature\FileContentSigner(
new \Roave\Signature\Encoder\Sha1SumEncoder()
);
// It'll give you a signature to the provided code content
$signature = $signer->sign(file_get_contents('/var/tmp/file.php'));
```
#### Validating a signed file
```php
// Creating a signer checker
$signer = new \Roave\Signature\FileContentChecker(
new \Roave\Signature\Encoder\Sha1SumEncoder()
);
// It'll validate the signature on file content
$signer->check(file_get_contents('/var/tmp/signed-file.php'));
```
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