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# KEM.Errors

Errors that CryptoKit throws when it encounters problems in key encapsulation mechanism (KEM) operations.

```
enum Errors
```

## Topics

### Enumeration Cases

[`case invalidSeed`](/documentation/CryptoKit/KEM/Errors/invalidSeed)

The seed value supplied for deriving a key isn’t valid.

[`case publicKeyMismatchDuringInitialization`](/documentation/CryptoKit/KEM/Errors/publicKeyMismatchDuringInitialization)

The public key CryptoKit receives when it initializes a key encapsulation operation doesn’t match the expected value.

## Relationships

### Conforms To

[`Error`](/documentation/Swift/Error)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

---

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