Microsoft uses certain cryptographic providers which support only a subset of potential key sizes for RSA and for ECC keys. These are listed in Table A.2, “Providers and Key Sizes”.
The key size support can impact the configuration of profiles that will be used with Internet Explorer and, possibly, the configuration of the CA.
Table A.2. Providers and Key Sizes
| Algorithm | Provider | Supported Key Sizes |
|---|---|---|
| ECC | Microsoft Software Key Storage Provider |
|
| ECC | Microsoft Smart Card Key Storage Provider |
|
| RSA | Microsoft Base Cryptographic Provider |
|
| RSA | Microsoft Strong Cryptographic Provider |
|
| RSA | Enhanced Cryptographic Provider |
|
| RSA | Microsoft Software Key Storage Provider |
|