Merge pull request #175664 from msmbaldwin/akv-hsm

Added HSM info

Author: PRMerger8

articles/key-vault/keys/about-keys.md

@@ -55,17 +55,17 @@ Key Vault supports RSA and EC keys. Managed HSM supports RSA, EC, and symmetric
 
 |Key type|Vaults (Premium SKU only)|Managed HSMs|
 |--|--|--|
-|**EC-HSM**: Elliptic Curve key | Supported | Supported|
-|**RSA-HSM**: RSA key|Supported|Supported|
-|**oct-HSM**: Symmetric key|Not supported|Supported|
+|**EC-HSM**: Elliptic Curve key | Supported (P-256, P-384, P-521, P-256K)| Supported (P-256, P-256K, P-384, P-521)|
+|**RSA-HSM**: RSA key|Supported (2048-bit, 3072-bit, 4096-bit)|Supported (2048-bit, 3072-bit, 4096-bit)|
+|**oct-HSM**: Symmetric key|Not supported|Supported (128-bit, 192-bit, 256-bit)|
 |||
 
 ### Software-protected keys
 
 |Key type|Vaults|Managed HSMs|
 |--|--|--|
-**RSA**: "Software-protected" RSA key|Supported|Not supported
-**EC**: "Software-protected" Elliptic Curve key|Supported|Not supported
+**RSA**: "Software-protected" RSA key|Supported  (2048-bit, 3072-bit, 4096-bit)|Not supported
+**EC**: "Software-protected" Elliptic Curve key |Supported  (P-256, P-384, P-521, P-256K)|Not supported
 |||
 
 ### Compliance

articles/key-vault/managed-hsm/overview.md

@@ -16,7 +16,9 @@ author: msmbaldwin
 ---
 # What is Azure Key Vault Managed HSM?
 
-Azure Key Vault Managed HSM is a fully managed, highly available, single-tenant, standards-compliant cloud service that enables you to safeguard cryptographic keys for your cloud applications, using **FIPS 140-2 Level 3** validated HSMs (Hardware Security Modules). For pricing information please see Managed HSM Pools section on [Azure Key Vault pricing page](https://azure.microsoft.com/pricing/details/key-vault/). 
+Azure Key Vault Managed HSM is a fully managed, highly available, single-tenant, standards-compliant cloud service that enables you to safeguard cryptographic keys for your cloud applications, using **FIPS 140-2 Level 3** validated HSMs (Hardware Security Modules). 
+
+For pricing information please see Managed HSM Pools section on [Azure Key Vault pricing page](https://azure.microsoft.com/pricing/details/key-vault/). For supported key types, see [About keys](../keys/about-keys.md).
 
 ## Why use Managed HSM?