Instance Method

isValidSignature(_:for:)

Verifies an ECDSA signature against a pre-computed digest using secp256k1_ecdsa_verify, which requires the signature to be in lower-S normalized form.

iOS 13.0+
macCatalyst 13.0+
macOS 10.15+
tvOS 13.0+
visionOS 1.0+
watchOS 6.0+

func isValidSignature<D>(_ signature: P256K.Signing.ECDSASignature, for digest: D) -> Bool where D : Digest

Parameters

signature: The P256K.Signing.ECDSASignature to verify; must be in lower-S normalized form.
digest: The digest that was signed.

Return Value

true if the signature is valid for digest under this public key, false otherwise.