• Azure Key Vault

    Azure Key Vault is used to safeguard cryptographic keys and secrets in hardware security modules (HSMs) and allows Azure applications and services to use them. For example, you might use Key Vault to store storage account keys, data encryption keys, authentication keys, .PFX files, or passwords.

    You can use Azure Active Directory (Azure AD) to control access to a Key Vault, which means you can control access to your keys and secrets using Azure AD. You can store your storage account keys that are used by a service principal (an identity representing an application) into an Azure Key Vault and give access only to that service principal, thus protecting your storage account keys.

    You can generate keys using Key Vault, but you can also store keys you have generated outside Azure. For security purposes, Microsoft cannot see or extract your keys. There is also logging capability that allows you to monitor the use of your keys in Key Vault.

    Source of Information : Microsoft Azure Essentials Fundamentals of Azure Second Edition


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