PML Publisher User Guide
Introduction : Serious Warnings About Encryption
Serious Warnings About Encryption
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AVEVA may, from time to time, and at its sole discretion, change certain PML encryption algorithms. Customers must therefore acknowledge that existing encrypted PML applications may not work with the new encryption algorithms. On receipt of the new encryption algorithms Customers will need to re-encrypt the source code of the PML applications and therefore the customer must keep a record of the full and current PML source code.
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Please note that AVEVA makes no guarantees or warranties as to the security of the encryption warranties and the customers use such encryption algorithms at their sole risk.
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The encryption used by PML publisher is shared by all users. If you encrypt a file for use in your company, it can be run by all users of a compatible version of the software, whether or not they are part of your company. (See Examples for some example code to help address this issue).
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If you wish the use the same encrypted file with different program versions you must check each version for compatibility.
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Once a PML file has been encrypted, it can no longer be read or edited. When you publish a file make sure that you retain a safe copy of the original file, in case you want to make further modifications to it later, or in case a new encryption algorithm is required.
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The PML Publisher does not include a decryptor for encrypted files.
 
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