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# sec_protocol_metadata_challenge_parameters_are_equal(_:_:)

```
func sec_protocol_metadata_challenge_parameters_are_equal(_ metadataA: sec_protocol_metadata_t, _ metadataB: sec_protocol_metadata_t) -> Bool
```

## Parameters

`metadataA`

A `sec_protocol_metadata_t` instance.

`metadataB`

A `sec_protocol_metadata_t` instance.

## Return Value

Returns true if both metadata values have the same challenge parameters.

## Discussion

\abstract Compare challenge-relevant information for two `sec_protocol_metadata` instances.

```
 This comparison includes all information relevant to a challenge request, including:
 distinguished names, signature algorithms, and supported certificate types.
 See Section 7.4.4 of RFC5246 for more details.
```

---

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