1. Introduction

This section preserves the RFC text for PKCS #8 content types, including PrivateKeyInfo, EncryptedPrivateKeyInfo, CMS, ASN.1 object identifiers, IANA registrations, and media type updates.

1.  Introduction

   The syntax for private-key information was originally described in
   [RFC5208], and the syntax was later revised by [RFC5958] to include
   the AsymmetricKeyPackage content type that supports multiple
   PrivateKeyInfos.  This document defines PKCS #8 content types for use
   with one PrivateKeyInfo and one EncryptedPrivateKeyInfo.  These
   content type assignments are needed for the PrivateKeyInfo and
   EncryptedPrivateKeyInfo to be carried in the Cryptographic Message
   Syntax (CMS) [RFC5652].

   Note: A very long time ago, media types for PrivateKeyInfo and
   EncryptedPrivateKeyInfo were assigned as "application/pkcs8" and
   "application/pkcs8-encrypted", respectively.