core.crypto / java.security.KeyPair

### Extensions for java.security.KeyPair

component1 | `operator fun KeyPair.component1(): PrivateKey`
component2 | `operator fun KeyPair.component2(): PublicKey`
signWithECDSA | `fun KeyPair.signWithECDSA(bitsToSign: ByteArray): WithKey` `fun KeyPair.signWithECDSA(bitsToSign: OpaqueBytes): WithKey` `fun KeyPair.signWithECDSA(bitsToSign: OpaqueBytes, party: Party): LegallyIdentifiable` `fun KeyPair.signWithECDSA(bitsToSign: ByteArray, party: Party): LegallyIdentifiable`