Merge pull request #101845 from jithubhaijabs/patch-6

Clarify RSA key supportability

Author: Court72

articles/backup/encryption-at-rest-with-cmk.md

@@ -34,7 +34,7 @@ In this article, you'll learn how to:
 
 - This feature isn't related to [Azure Disk Encryption](../virtual-machines/disk-encryption-overview.md), which uses guest-based encryption of a VM's disk using BitLocker (for Windows) and DM-Crypt (for Linux).
 
-- The Recovery Services vault can be encrypted only with keys stored in Azure Key Vault, located in the **same region**. Also, keys must be **RSA keys** only and should be in **enabled** state.
+- The Recovery Services vault can be encrypted only with keys stored in Azure Key Vault, located in the **same region**. Also, keys must be [supported](../key-vault/keys/about-keys.md#key-types-and-protection-methods) **RSA keys** only and should be in **enabled** state.
 
 - Moving CMK encrypted Recovery Services vault across Resource Groups and Subscriptions isn't currently supported.
 - Recovery Services vaults encrypted with customer-managed keys currently don't support cross-region restore of backed-up instances.