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Charter Description – Par 1 Forgery of headers that indicate message origin is a problem for users of Internet mail. The MASS working group will produce standards-track specifications that permit authentication of message headers during transit, using public-key signatures and based on domain name identifiers. Keys will be stored in the responsible identity's DNS hierarchy. The specification will be based on the draft-allman-dkim-*.txt Internet-Drafts. The working group will make only the minimal changes deemed useful to improve the viability of services that are based on these specifications. The specifications will contain summaries of the threats, requirements and limitations that are associated with the specified mechanism. The MASS working group will also address mechanisms for advertising "signing policy" so that a recipient can determine whether a valid message signature should be present. |