hwsecurity / de.cotech.hw / SecurityKeyAuthenticator /

SecurityKeyAuthenticator

interface SecurityKeyAuthenticator

This use case class performs an “authenticate” operation on a challenge.

Instances of this class can be obtained from SecurityKey objects for Security Key types that support it. For Security Keys that contain more than possible key for authentication operations, each instance of this class is already associated with a specific key.

Example:

byte[] challenge = { (byte) 1, (byte) 2, (byte) 3, (byte) 4 };
PinProvider pinProvider = StaticPinProvider.getInstance(ByteSecret.unsafeFromString("123456"));

SecurityKeyAuthenticator securityKeyAuthenticator = securityKey.createSecurityKeyAuthenticator(pinProvider)
byte[] signatureBytes = authenticator.authenticateWithDigest(challenge, "SHA-1");

Signature signature = Signature.getInstance("SHA1withRSA");
signature.initVerify(securityKeyAuthenticator.retrievePublicKey());
signature.update(challenge);
boolean isVerified = signature.verify(signatureBytes);
assert isVerified;

Functions