verify(_:signature:algorithm:completion:)

Verifies a digital signature for the data you supply.

Declaration

func verify(_ signedData: Data, signature: Data, algorithm: SecKeyAlgorithm, completion handler: @escaping  @Sendable ((any Error)?) -> Void)

func verify(_ signedData: Data, signature: Data, algorithm: SecKeyAlgorithm) async throws

Parameters

signedData:
The signed data.
signature:
The signature of the data.
algorithm:
An algorithm suitable for verifying signatures with this public key.
handler:
A completion handler to call when the verification operation completes.
error
An error object that indicates why the verification operation failed, or nil if it succeeded.

Discussion

important:

You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:

func verify(_ signedData: Data, signature: Data, algorithm: SecKeyAlgorithm) async throws

For information about concurrency and asynchronous code in Swift, see Calling Objective-C APIs Asynchronously.

verify(_:signature:algorithm:completion:)

Declaration

Parameters

Discussion

See Also

Performing cryptographic operations