Cryptographic controlsĪlgorithm: AES Key length: 128 bits and 256 bits Ģ56 bits is used by the Azure Information Protection client in the following scenarios: For example, to confirm that the security protection is industry-standard. Cryptographic controls used by Azure RMS: Algorithms and key lengthsĮven if you don't need to know in detail how this technology works, you might be asked about the cryptographic controls that it uses. Throughout the protection process when Azure RMS is encrypting and decrypting, authorizing, and enforcing restrictions, the secret formula is never sent to Azure.įor a detailed description of what’s happening, see the Walkthrough of how Azure RMS works: First use, content protection, content consumption section in this article.įor technical details about the algorithms and key lengths that Azure RMS uses, see the next section. Your tenant key can be generated and managed by Microsoft, or you can generate and manage your own tenant key. It is unique for each document and is placed in the file header where it is protected by your Azure Information Protection tenant root key (the red key in this picture). The document is protected by a content key (the green key in this picture). A document containing the secret formula is protected, and then successfully opened by an authorized user or service. When a protected document is used by a legitimate user or it is processed by an authorized service, the data in the document is decrypted and the rights that are defined in the policy are enforced.Īt a high level, you can see how this process works in the following picture. The data is encrypted at the application level and includes a policy that defines the authorized use for that document. Azure RMS simply makes the data in a document unreadable to anyone other than authorized users and services: Information that you protect is never sent to or stored in Azure, unless you explicitly store it in Azure or use another cloud service that stores it in Azure. Learn more in our migration blog.Īn important thing to understand about how Azure RMS works, is that this data protection service from Azure Information Protection, does not see or store your data as part of the protection process.
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The classic client will be officially retired, and will stop functioning, on March 31, 2022.Īll current Azure Information Protection classic client customers must migrate to the Microsoft Information Protection unified labeling platform and upgrade to the unified labeling client. No further support is provided for the classic client and maintenance versions will no longer be released. To provide a unified and streamlined customer experience, the Azure Information Protection classic client and Label Management in the Azure Portal are deprecated as of March 31, 2021.