2.2.3.1 Key Recovery Certificate
A CA MAY use one or more locally configured and specified key recovery keys to encrypt the private key of a client, which is submitted to the CA encapsulated in a certificate enrollment request.
A key recovery certificate MUST contain the following fields and extensions identified in [RFC3280]:
Version
Serial Number
Signature
notBefore
notAfter
Subject
Issuer
Subject Public Key Info
Authority Key Identifier
Subject Key Identifier
Authority Information Access
Key Usage (Key Encipherment = 0x20)
CDP (CRL Distribution Point)
Extended Key Usage (Key Recovery OID = szOID_KP_KEY_RECOVERY_AGENT (1.3.6.1.4.1.311.21.6)).<18>