text: /**
   * Object IDs for ASN.1.
   *
   * @author Dave Longley
   *
   * Copyright (c) 2010-2013 Digital Bazaar, Inc.
   */
  var forge = require('./forge');
  
  forge.pki = forge.pki || {};
  var oids = module.exports = forge.pki.oids = forge.oids = forge.oids || {};
  
  // set id to name mapping and name to id mapping
  function _IN(id, name) {
    oids[id] = name;
    oids[name] = id;
  }
  // set id to name mapping only
  function _I_(id, name) {
    oids[id] = name;
  }
  
  // algorithm OIDs
  _IN('1.2.840.113549.1.1.1', 'rsaEncryption');
  // Note: md2 & md4 not implemented
  //_IN('1.2.840.113549.1.1.2', 'md2WithRSAEncryption');
  //_IN('1.2.840.113549.1.1.3', 'md4WithRSAEncryption');
  _IN('1.2.840.113549.1.1.4', 'md5WithRSAEncryption');
  _IN('1.2.840.113549.1.1.5', 'sha1WithRSAEncryption');
  _IN('1.2.840.113549.1.1.7', 'RSAES-OAEP');
  _IN('1.2.840.113549.1.1.8', 'mgf1');
  _IN('1.2.840.113549.1.1.9', 'pSpecified');
  _IN('1.2.840.113549.1.1.10', 'RSASSA-PSS');
  _IN('1.2.840.113549.1.1.11', 'sha256WithRSAEncryption');
  _IN('1.2.840.113549.1.1.12', 'sha384WithRSAEncryption');
  _IN('1.2.840.113549.1.1.13', 'sha512WithRSAEncryption');
  
  _IN('1.2.840.10040.4.3', 'dsa-with-sha1');
  
  _IN('1.3.14.3.2.7', 'desCBC');
  
  _IN('1.3.14.3.2.26', 'sha1');
  _IN('2.16.840.1.101.3.4.2.1', 'sha256');
  _IN('2.16.840.1.101.3.4.2.2', 'sha384');
  _IN('2.16.840.1.101.3.4.2.3', 'sha512');
  _IN('1.2.840.113549.2.5', 'md5');
  
  // pkcs#7 content types
  _IN('1.2.840.113549.1.7.1', 'data');
  _IN('1.2.840.113549.1.7.2', 'signedData');
  _IN('1.2.840.113549.1.7.3', 'envelopedData');
  _IN('1.2.840.113549.1.7.4', 'signedAndEnvelopedData');
  _IN('1.2.840.113549.1.7.5', 'digestedData');
  _IN('1.2.840.113549.1.7.6', 'encryptedData');
  
  // pkcs#9 oids
  _IN('1.2.840.113549.1.9.1', 'emailAddress');
  _IN('1.2.840.113549.1.9.2', 'unstructuredName');
  _IN('1.2.840.113549.1.9.3', 'contentType');
  _IN('1.2.840.113549.1.9.4', 'messageDigest');
  _IN('1.2.840.113549.1.9.5', 'signingTime');
  _IN('1.2.840.113549.1.9.6', 'counterSignature');
  _IN('1.2.840.113549.1.9.7', 'challengePassword');
  _IN('1.2.840.113549.1.9.8', 'unstructuredAddress');
  _IN('1.2.840.113549.1.9.14', 'extensionRequest');
  
  _IN('1.2.840.113549.1.9.20', 'friendlyName');
  _IN('1.2.840.113549.1.9.21', 'localKeyId');
  _IN('1.2.840.113549.1.9.22.1', 'x509Certificate');
  
  // pkcs#12 safe bags
  _IN('1.2.840.113549.1.12.10.1.1', 'keyBag');
  _IN('1.2.840.113549.1.12.10.1.2', 'pkcs8ShroudedKeyBag');
  _IN('1.2.840.113549.1.12.10.1.3', 'certBag');
  _IN('1.2.840.113549.1.12.10.1.4', 'crlBag');
  _IN('1.2.840.113549.1.12.10.1.5', 'secretBag');
  _IN('1.2.840.113549.1.12.10.1.6', 'safeContentsBag');
  
  // password-based-encryption for pkcs#12
  _IN('1.2.840.113549.1.5.13', 'pkcs5PBES2');
  _IN('1.2.840.113549.1.5.12', 'pkcs5PBKDF2');
  
  _IN('1.2.840.113549.1.12.1.1', 'pbeWithSHAAnd128BitRC4');
  _IN('1.2.840.113549.1.12.1.2', 'pbeWithSHAAnd40BitRC4');
  _IN('1.2.840.113549.1.12.1.3', 'pbeWithSHAAnd3-KeyTripleDES-CBC');
  _IN('1.2.840.113549.1.12.1.4', 'pbeWithSHAAnd2-KeyTripleDES-CBC');
  _IN('1.2.840.113549.1.12.1.5', 'pbeWithSHAAnd128BitRC2-CBC');
  _IN('1.2.840.113549.1.12.1.6', 'pbewithSHAAnd40BitRC2-CBC');
  
  // hmac OIDs
  _IN('1.2.840.113549.2.7', 'hmacWithSHA1');
  _IN('1.2.840.113549.2.8', 'hmacWithSHA224');
  _IN('1.2.840.113549.2.9', 'hmacWithSHA256');
  _IN('1.2.840.113549.2.10', 'hmacWithSHA384');
  _IN('1.2.840.113549.2.11', 'hmacWithSHA512');
  
  // symmetric key algorithm oids
  _IN('1.2.840.113549.3.7', 'des-EDE3-CBC');
  _IN('2.16.840.1.101.3.4.1.2', 'aes128-CBC');
  _IN('2.16.840.1.101.3.4.1.22', 'aes192-CBC');
  _IN('2.16.840.1.101.3.4.1.42', 'aes256-CBC');
  
  // certificate issuer/subject OIDs
  _IN('2.5.4.3', 'commonName');
  _IN('2.5.4.5', 'serialName');
  _IN('2.5.4.6', 'countryName');
  _IN('2.5.4.7', 'localityName');
  _IN('2.5.4.8', 'stateOrProvinceName');
  _IN('2.5.4.10', 'organizationName');
  _IN('2.5.4.11', 'organizationalUnitName');
  
  // X.509 extension OIDs
  _IN('2.16.840.1.113730.1.1', 'nsCertType');
  _I_('2.5.29.1', 'authorityKeyIdentifier'); // deprecated, use .35
  _I_('2.5.29.2', 'keyAttributes'); // obsolete use .37 or .15
  _I_('2.5.29.3', 'certificatePolicies'); // deprecated, use .32
  _I_('2.5.29.4', 'keyUsageRestriction'); // obsolete use .37 or .15
  _I_('2.5.29.5', 'policyMapping'); // deprecated use .33
  _I_('2.5.29.6', 'subtreesConstraint'); // obsolete use .30
  _I_('2.5.29.7', 'subjectAltName'); // deprecated use .17
  _I_('2.5.29.8', 'issuerAltName'); // deprecated use .18
  _I_('2.5.29.9', 'subjectDirectoryAttributes');
  _I_('2.5.29.10', 'basicConstraints'); // deprecated use .19
  _I_('2.5.29.11', 'nameConstraints'); // deprecated use .30
  _I_('2.5.29.12', 'policyConstraints'); // deprecated use .36
  _I_('2.5.29.13', 'basicConstraints'); // deprecated use .19
  _IN('2.5.29.14', 'subjectKeyIdentifier');
  _IN('2.5.29.15', 'keyUsage');
  _I_('2.5.29.16', 'privateKeyUsagePeriod');
  _IN('2.5.29.17', 'subjectAltName');
  _IN('2.5.29.18', 'issuerAltName');
  _IN('2.5.29.19', 'basicConstraints');
  _I_('2.5.29.20', 'cRLNumber');
  _I_('2.5.29.21', 'cRLReason');
  _I_('2.5.29.22', 'expirationDate');
  _I_('2.5.29.23', 'instructionCode');
  _I_('2.5.29.24', 'invalidityDate');
  _I_('2.5.29.25', 'cRLDistributionPoints'); // deprecated use .31
  _I_('2.5.29.26', 'issuingDistributionPoint'); // deprecated use .28
  _I_('2.5.29.27', 'deltaCRLIndicator');
  _I_('2.5.29.28', 'issuingDistributionPoint');
  _I_('2.5.29.29', 'certificateIssuer');
  _I_('2.5.29.30', 'nameConstraints');
  _IN('2.5.29.31', 'cRLDistributionPoints');
  _IN('2.5.29.32', 'certificatePolicies');
  _I_('2.5.29.33', 'policyMappings');
  _I_('2.5.29.34', 'policyConstraints'); // deprecated use .36
  _IN('2.5.29.35', 'authorityKeyIdentifier');
  _I_('2.5.29.36', 'policyConstraints');
  _IN('2.5.29.37', 'extKeyUsage');
  _I_('2.5.29.46', 'freshestCRL');
  _I_('2.5.29.54', 'inhibitAnyPolicy');
  
  // extKeyUsage purposes
  _IN('1.3.6.1.4.1.11129.2.4.2', 'timestampList');
  _IN('1.3.6.1.5.5.7.1.1', 'authorityInfoAccess');
  _IN('1.3.6.1.5.5.7.3.1', 'serverAuth');
  _IN('1.3.6.1.5.5.7.3.2', 'clientAuth');
  _IN('1.3.6.1.5.5.7.3.3', 'codeSigning');
  _IN('1.3.6.1.5.5.7.3.4', 'emailProtection');
  _IN('1.3.6.1.5.5.7.3.8', 'timeStamping');
  