List keysets in a CSP.
async certmgr.listKeys(): Promise<string>
This method lists the keys (public/private key pairs) in a Cryptographic Service Provider (CSP). The results are provided through the KeyList event.
The same information is also returned upon method completion as a set of lines, one per key, with each line containing the following information separated by Tab characters: KeyContainer, KeyType, AlgId, KeyLen.
NOTE: This functionality is only available in Windows.