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m (→Message Body) |
m (→Message HMAC) |
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== Message HMAC == | == Message HMAC == | ||
The "HMAC" field is included to verify that the message has not been tampered with by a third party. It is calculated by signing the contents of the "body" field using the standard [http://en.wikipedia.org/wiki/HMAC HMAC algorithm] with | The "HMAC" field is included to verify that the message has not been tampered with by a third party. It is calculated by signing the contents of the "body" field using the standard [http://en.wikipedia.org/wiki/HMAC HMAC algorithm] with the [http://en.wikipedia.org/wiki/SHA-2#SHA-256_.28a_SHA-2_variant.29_pseudocode SHA-256 hash function]. |
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