---
name: "OAuth::Lite2::Signer"
section: "3pm"
platform: "linux"
package: "liboauth-lite2-perl"
version: "0.11-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/OAuth::Lite2::Signer"
---

# OAuth::Lite2::Signer(3pm)

OAuth 2.0 signature (DEPRECATED)

## NAME

OAuth::Lite2::Signer - OAuth 2.0 signature (DEPRECATED)

## SYNOPSIS

```
    my $signed_params = OAuth::Lite2::Signer->sign(
        secret    => q{my_token_secret},
        algorithm => q{hmac-sha256},
        method    => q{GET},
        url       => q{http://example.org/protected/resource},
    );
```

## DESCRIPTION

DEPRECATED. This is for old version of OAuth 2.0 draft specification.

This is for client to generate signed request, or for server to verify received request.

## METHODS

### sign( %params )

Returns the hash reference that includes parameters for OAuth 2.0 signed request.

```
    my $signed_params = OAuth::Lite2::Signer->sign(
        secret    => q{my_token_secret},
        algorithm => q{hmac-sha256},
        method    => q{GET},
        url       => q{http://example.org/protected/resource},
    );
```

- secret

  Access token secret.

- algorithm

  The algorithm what you make signature with.

- method

  HTTP method of the request.

- url

  URL of the request.

- debug\_nonce

  Optional. If you omit this, nonce string is automatically generate random string.

- debug\_timestamp

  Optional. If you omit this, current timestamp is set.

### normalize\_string( %params )

Returns normalized string according to the specification.

- host

  host part of the url.

- port

  If you omit this, 80 is set by default.

- nonce

  Random string.

- timestamp

  unix timestamp.

- algorithm

  name of hmac hash algorithm.

- method

  HTTP method of the request.

- url

  URL of the request.

### verify( %params )

Verify a signed request.

```
    unless ( OAuth::Lite2::Signer->verify( %params ) ) {
        $app->error("Invalid request");
    }
```

- signature

  'signature' parameter of the received request.

- secret

  The access token secret.

- algorithm

  'algorithm' parameter of the received request.

- method

  HTTP method of the received request.

- url

  URL of the received request.

- nonce

  'nonce' parameter of the received request.

- timestamp

  'timestamp' parameter of the received request.

## AUTHOR

Lyo Kato, \<lyo.kato@gmail.com\>

## COPYRIGHT AND LICENSE

Copyright (C) 2010 by Lyo Kato

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available.