Function

SecKeyIsAlgorithmSupported(_:_:_:)

Returns a Boolean indicating whether a key is suitable for an operation using a certain algorithm.

Declaration

func SecKeyIsAlgorithmSupported(_ key: SecKey, _ operation: SecKeyOperationType, _ algorithm: SecKeyAlgorithm) -> Bool

Parameters

key: The key whose suitability you want to test.
operation: The operation that you want to perform with the key. Use one of the values from SecKeyOperationType.
algorithm: The algorithm that you want to perform with the key. Use one of the values from SecKeyAlgorithm.

Return Value

A Boolean indicating whether the key can be used for the given operation and algorithm.

See Also

Examining Keys

func SecKeyGetBlockSize(SecKey) -> Int

Gets the block length associated with a cryptographic key.

func SecKeyCopyAttributes(SecKey) -> CFDictionary?

Gets the attributes of a given key.

struct SecKeyAlgorithm

The algorithms that cryptographic keys enable.

enum SecKeyOperationType

The types of operations that you can use a cryptographic key to perform.

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