* multiple variants of ASN.1, including:
 *
 *  * DER: Distinguished Encoding Rules. This further constrains ASN.1 for deterministic encoding.
 *  * BER: Basic Encoding Rules.
 *
 * This class was implemented according to the [X.690 spec][[x690]], and under the advice of
 * [Lets Encrypt's ASN.1 and DER][asn1_and_der] guide.
 *
 * [x690]: https://www.itu.int/rec/T-REC-X.690
 * [asn1_and_der]: https://letsencrypt.org/docs/a-warm-welcome-to-asn1-and-der/

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

/**
 * The first two bytes of each value is a header that includes its tag (field ID) and length.
 */
internal data class DerHeader(
  /**
   * Namespace of the tag.
   *

import kotlin.test.assertFailsWith
import okhttp3.tls.internal.der.CertificateAdapters.generalNameDnsName
import okhttp3.tls.internal.der.CertificateAdapters.generalNameIpAddress
import okhttp3.tls.internal.der.ObjectIdentifiers.BASIC_CONSTRAINTS
import okhttp3.tls.internal.der.ObjectIdentifiers.COMMON_NAME
import okhttp3.tls.internal.der.ObjectIdentifiers.SHA256_WITH_RSA_ENCRYPTION
import okhttp3.tls.internal.der.ObjectIdentifiers.SUBJECT_ALTERNATIVE_NAME

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

import okio.Buffer
import okio.ByteString

/**
 * Encode and decode a model object like a [Long] or [Certificate] as DER bytes.
 */
internal interface DerAdapter<T> {
  /** Returns true if this adapter can read [header] in a choice. */
  fun matches(header: DerHeader): Boolean

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

import okio.ByteString

/**
 * Like a [ByteString], but whose bits are not necessarily a strict multiple of 8.
 */
internal data class BitString(
  val byteString: ByteString,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

/** ASN.1 object identifiers used internally by this implementation. */
internal object ObjectIdentifiers {
  const val EC_PUBLIC_KEY = "1.2.840.10045.2.1"
  const val SHA256_WITH_ECDSA = "1.2.840.10045.4.3.2"

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

import okio.ByteString

/**
 * A value whose type is not specified statically. Use this with [Adapters.any] which will attempt
 * to resolve a concrete type.
 */
internal data class AnyValue(

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

import java.math.BigInteger
import java.security.GeneralSecurityException
import java.security.PublicKey
import java.security.Signature
import java.security.SignatureException

import okhttp3.tls.internal.der.ObjectIdentifiers.BASIC_CONSTRAINTS
import okhttp3.tls.internal.der.ObjectIdentifiers.COMMON_NAME
import okhttp3.tls.internal.der.ObjectIdentifiers.ORGANIZATIONAL_UNIT_NAME
import okhttp3.tls.internal.der.ObjectIdentifiers.RSA_ENCRYPTION
import okhttp3.tls.internal.der.ObjectIdentifiers.SHA256_WITH_RSA_ENCRYPTION
import okhttp3.tls.internal.der.ObjectIdentifiers.SUBJECT_ALTERNATIVE_NAME

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

import java.math.BigInteger
import okio.Buffer
import okio.BufferedSink
import okio.ByteString

internal class DerWriter(sink: BufferedSink) {