About getting cookies in cross-domain logins resolution bug

Formsauthentication.decrypt error Length of the data to Decrypt is invalid.

For login between different servers in the same domain, encrypt the configuration instructions:

Https://msdn.microsoft.com/zh-cn/library/w8h3skw9.aspx

Workaround 1:

<add key= "Aspnet:uselegacyformsauthenticationticketcompatibility" value= "true"/>

<add key= "Aspnet:uselegacyencryption" value= "true"/>

Http://www.knowsky.com/606889.html

Workaround 2:

Update Security Patches

Http://stackoverflow.com/questions/7728658/asp-net-formsauthentication-length-of-the-data-to-decrypt-is-invalid

Http://weblogs.asp.net/scottgu/important-asp-net-security-vulnerability

Patch List

https://technet.microsoft.com/library/security/ms10-070

About getting cookies in cross-domain logins resolution bug