Function signVerify

lib/internal/crypto/webcrypto.js:1156–1204

(algorithm, key, data, signature)

}

function signVerify(algorithm, key, data, signature) {
  const operation = signature !== undefined ? 'verify' : 'sign'; // This is also usage
  const normalizedAlgorithm = normalizeAlgorithm(algorithm, operation);

  if (normalizedAlgorithm.name !== getCryptoKeyAlgorithm(key).name)
    throw lazyDOMException('Key algorithm mismatch', 'InvalidAccessError');

  if (!hasCryptoKeyUsage(key, operation))
    throw lazyDOMException(
      `Unable to use this key to ${operation}`, 'InvalidAccessError');

  switch (normalizedAlgorithm.name) {
    case 'RSA-PSS':
      // Fall through
    case 'RSASSA-PKCS1-v1_5':
      return require('internal/crypto/rsa')
        .rsaSignVerify(key, data, normalizedAlgorithm, signature);
    case 'ECDSA':
      return require('internal/crypto/ec')
        .ecdsaSignVerify(key, data, normalizedAlgorithm, signature);
    case 'Ed25519':
      // Fall through
    case 'Ed448':
      // Fall through
      return require('internal/crypto/cfrg')
        .eddsaSignVerify(key, data, normalizedAlgorithm, signature);
    case 'HMAC':
      return require('internal/crypto/mac')
        .hmacSignVerify(key, data, normalizedAlgorithm, signature);
    case 'ML-DSA-44':
      // Fall through
    case 'ML-DSA-65':
      // Fall through
    case 'ML-DSA-87':
      return require('internal/crypto/ml_dsa')
        .mlDsaSignVerify(key, data, normalizedAlgorithm, signature);
    case 'KMAC128':
      // Fall through
    case 'KMAC256':
      return require('internal/crypto/mac')
        .kmacSignVerify(key, data, normalizedAlgorithm, signature);
    /* c8 ignore start */
    default: {
      const assert = require('internal/assert');
      assert.fail('Unreachable code');
    }
    /* c8 ignore stop */
  }
}

function sign(algorithm, key, data) {
  return callSubtleCryptoMethod(signImpl, this, arguments);