FIELD: physics; communications.
SUBSTANCE: group of inventions relates to apparatus for signing and verifying authenticity of session initiation protocol routing headers for authentication of routing commands. Described are a method, a computer readable carrier having instructions which are executed by a computer, and a computer readable carrier on which is stored a data structure for signing and verifying authenticity of session initiation protocol (SIP) routing headers. A SIP node can receive a SIP request which includes a message header. A signature can be generated based on at least part of the message header, and a header element of the SIP node. The signature can then be inserted into the header element of the SIP node.
EFFECT: increased reliability.
12 cl, 14 dwg
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