COSEAlgorithmIdentifier.java

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package com.yubico.webauthn.data;

import com.fasterxml.jackson.annotation.JsonCreator;

import com.fasterxml.jackson.annotation.JsonValue;

import com.upokecenter.cbor.CBORException;

import com.upokecenter.cbor.CBORObject;

import java.util.Optional;

import java.util.stream.Stream;

import lombok.Getter;

import lombok.NonNull;

/**

 * A number identifying a cryptographic algorithm. The algorithm identifiers SHOULD be values

 * registered in the IANA COSE Algorithms registry, for instance, -7 for "ES256" and -257 for

 * "RS256".

 *

 * @see <a

 *     href="https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#typedefdef-cosealgorithmidentifier">§5.10.5.

 *     Cryptographic Algorithm Identifier (typedef COSEAlgorithmIdentifier)</a>

 */

  /**

   * Attempt to parse an integer as a {@link COSEAlgorithmIdentifier}.

   *

   * @param id an integer equal to the {@link #getId() id} of a constant in {@link

   *     COSEAlgorithmIdentifier}

   * @return The {@link COSEAlgorithmIdentifier} instance whose {@link #getId() id} equals <code>id

   *     </code>, if any.

   * @see <a href="https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-alg-identifier">§5.8.5.

   *     Cryptographic Algorithm Identifier (typedef COSEAlgorithmIdentifier)</a>

   */

  public static Optional<COSEAlgorithmIdentifier> fromId(long id) {

  }

  /**

   * Read the {@link COSEAlgorithmIdentifier} from a public key in COSE_Key format.

   *

   * @param publicKeyCose a public key in COSE_Key format.

   * @return The <code>alg</code> of the <code>publicKeyCose</code> parsed as a {@link

   *     COSEAlgorithmIdentifier}, if possible. Returns empty if the {@link COSEAlgorithmIdentifier}

   *     enum has no constant matching the <code>alg</code> value.

   * @throws IllegalArgumentException if <code>publicKeyCose</code> is not a well-formed COSE_Key.

   */

    final int alg;

    try {

            "Public key does not contain an \"alg\"(3) value: " + publicKeyCose);

      }

            "Public key has non-integer \"alg\"(3) value: " + publicKeyCose);

      }

  }

  @JsonCreator

  private static COSEAlgorithmIdentifier fromJson(long id) {

  }

}

Mutations