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or "auth-int", then compute the response as follows:

:response = MD5(HA1:nonce:nonceCount:cnonce:qop:HA2)

If the qop directive is unspecified, then compute the response as follows:

:response = MD5(HA1:nonce:HA2)

The above shows that when qop is not specified, the simpler RFC 2069 standard is followed.

In September 2015, RFC 7616 replaced RFC 2617 by adding 4 new algorithms:

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