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Thank you for your help. &nbsp;I am in an unusual situtation where I often have to try to help clients of clients. &nbsp; I usually will not be allowed access to the remote system to even view the configuration. &nbsp;However, you have given me more direction as to the right questions to ask and when I get more information, I can pass it along.
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Thank you for your help.  I am in an unusual situtation where I often have to try to help clients of clients.   I usually will not be allowed access to the remote system to even view the configuration.  However, you have given me more direction as to the right questions to ask and when I get more information, I can pass it along.

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I just began supporting an application with a IIS web front end for external clients. &nbsp;However, I am not actually responsible for setting up the IIS security for clients and do not have any real life experience setting up secured IIS environments using encrypted passwords.<br />
<br />
A client of on external implementation of the application gets the following error after entering a password that is required to access a priviledged feature on the site:<br />
<br />
com.entrust.security.excep<wbr />tions.Entr<wbr />ustBaseExc<wbr />eption: Could not create MAC: Cipher::getInstance(String<wbr />) - no<br />
Cipher could be found for this algorithm - CAST5/CBC/NoPadding - amongst any of the providers.<br />
<br />
I wanted to know if anyone could give me advice on how to troubleshoot this problem. &nbsp;<br />
<br />
<br />

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I just began supporting an application with a IIS web front end for external clients.  However, I am not actually responsible for setting up the IIS security for clients and do not have any real life experience setting up secured IIS environments using encrypted passwords.

A client of on external implementation of the application gets the following error after entering a password that is required to access a priviledged feature on the site:

com.entrust.security.exceptions.EntrustBaseException: Could not create MAC: Cipher::getInstance(String) - no
Cipher could be found for this algorithm - CAST5/CBC/NoPadding - amongst any of the providers.

I wanted to know if anyone could give me advice on how to troubleshoot this problem.  




Problem with IIS Encryption and ciphers

Operating system security (OS security) is the process of ensuring OS integrity, confidentiality and availability. OS security refers to specified steps or measures used to protect the OS from threats, viruses, worms, malware or remote hacker intrusions. OS security encompasses all preventive-control techniques, which safeguard any computer assets capable of being stolen, edited or deleted if OS security is compromised, including authentication, passwords and threats to systems and programs.

OS Security

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.