(RFC 5408 published January 2009, subtype last updated January 2009) MIME media type name: application MIME subtype name: ibe-pkg-reply+xml Mandatory parameters: none Optional parameters: none Encoding considerations: This media type MUST be encoded as US-ASCII [ASCII]. Security considerations: The data conveyed as this media type is an IBE private key, so its confidentiality and integrity are extremely important. To ensure this, the response from the server that contains an IBE private key must take place over a secure protocol, such as TLS 1.2 or its successors. To ensure the validity of the server, the client MUST verify the server certificate and MUST abort the key request if the verification of the server certificate of the TLS connection fails. This media type contains no active content and does not use compression. Interoperability considerations: There are no known interoperability considerations for this media type. Applications that use this media type: Applications that implement IBE in compliance with this specification will use this media type. The most commonly used of these applications are encrypted email and file encryption. Additional information: none Person and email address for further information: Luther Martin, martin&voltage.com. Intended usage: COMMON Author/Change controller: Luther Martin, martin&voltage.com.