2.2.5 Security Reference Header
A security reference header is used to refer to a previous security header. If the security properties of the current call match the security properties of the call stored immediately before it in the message, a security reference header SHOULD NOT be included. If the security context matches any other previous call, a security reference header SHOULD be included instead of a security header.
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Header Signature |
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Size |
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Security Header Offset |
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Padding |
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Header Signature (4 bytes): MUST be set to "SECR" in ASCII (0x52434553).
Size (4 bytes): The size, in bytes, of the security reference header. MUST be set to 0x00000010.
Security Header Offset (4 bytes): Offset, in bytes, into the message where the security header this header refers to is located.
Padding (4 bytes): Aligns the header on an 8-byte boundary. MUST be set to 0 and ignored on receipt.