https://github.com/mevdschee/aspnetcookie

A Go package that can decode an ASP.net FormsAuthentication encrypted cookie.
https://github.com/mevdschee/aspnetcookie

Last synced: 10 months ago
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A Go package that can decode an ASP.net FormsAuthentication encrypted cookie.

• Host: GitHub
• URL: https://github.com/mevdschee/aspnetcookie
• Owner: mevdschee
• License: mit
• Created: 2016-11-18T09:27:17.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2017-06-26T20:45:10.000Z (over 8 years ago)
• Last Synced: 2024-10-04T21:41:18.177Z (over 1 year ago)
• Language: Go
• Size: 8.79 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# aspnetcookie

A Go package that can decode and validate an ASP.net FormsAuthentication encrypted and signed cookie.

## Limitations

Currently only the following (Web.config) configuration is tested:

```

```

Only SHA1 based HMAC and AES encryption are currently supported.

## Usage

```

validationKey, _ := hex.DecodeString("2E502E08392C704E2234759EDA7A5940A8CE1C42C7964B8142778764CF0006C2")

decryptionKey, _ := hex.DecodeString("5226859B3CB262982B574093B29DAD9083030C93604C820F009D5192BDEC31F2")

codec := aspnetcookie.New("SHA1", validationKey, "AES", decryptionKey)

cookie, _ := codec.EncodeNew("maurits.vanderschee", 3600*24*365, true, "\"nothing\"", "/")

ticket, _ := codec.Decode(cookie)

```	

where ticket is:

```

// FormsAuthenticationTicket holds:

type FormsAuthenticationTicket struct {

	version           byte

	name              string

	issueDateUtc      int64

	expirationDateUtc int64

	isPersistent      bool

	userData          string

	cookiePath        string

}

```

## Links

see: https://referencesource.microsoft.com/#System.Web/Security/FormsAuthentication.cs