interface Deno.TlsCertifiedKeyPem
Provides certified key material from strings. The key material is provided in
`PEM`-format (Privacy Enhanced Mail, https://www.rfc-editor.org/rfc/rfc1422) which can be identified by having
`-----BEGIN-----` and `-----END-----` markers at the beginning and end of the strings. This type of key is not compatible
with `DER`-format keys which are binary.
Deno supports RSA, EC, and PKCS8-format keys.
```ts
const key = {
key: "-----BEGIN PRIVATE KEY-----\n...\n-----END PRIVATE KEY-----\n",
cert: "-----BEGIN CERTIFICATE-----\n...\n-----END CERTIFICATE-----\n" }
};
```