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small ASN1 DER and PEM parser in pure js
wow, just 100 lines of code and the module can parse ASN1-DER data structures. it is made to read informations from certificates. tested with certificates generated with hyperledger cryptogen and the github.com certificate
// test.js
var tder = require('./index');
var fs = require('fs');
var asn1 = tder.parsePem(`
-----BEGIN CERTIFICATE-----
MIIHeTCCBmGgAwIBAgIQC/20CQrXteZAwwsWyVKaJzANBgkqhkiG9w0BAQsFADB1
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
...
nT8MIG1u1zF8MA0GCSqGSIb3DQEBCwUAA4IBAQCLbNtkxuspqycq8h1EpbmAX0wM
FrBHTFxqIP6kDnxiLElBrZngtY07ietaYZVLQN/ETyqLQftsf8TecwTklbjvm8NT
JqbaIVifYwqwNN+4lRxS3F5lNlA/il12IOgbRioLI62o8G0DaEUQgHNf8vSG
-----END CERTIFICATE-----
`);
asn1 = tder.interpreter.certInterpreter(asn1);
// {
// "serial": "0bfdb4090ad7b5e640c30b16c9529a27",
// "issuer": {
// "countryName": "US",
// "organizationName": "DigiCert Inc",
// "organizationalUnitName": "www.digicert.com",
// "commonName": "DigiCert SHA2 Extended Validation Server CA"
// },
// "dueTime": {
// "notBefore": "2016-03-10T00:00:00.000Z",
// "notAfter": "2018-05-17T12:00:00.000Z"
// },
// "subject": {
// "businessCategory": "Private Organization",
// "jurisdictionCountryName": "US",
// "jurisdictionStateOrProvinceName": "Delaware",
// "serialNumber": "5157550",
// "streetAddress": "88 Colin P Kelly, Jr Street",
// "postalCode": "94107",
// "countryName": "US",
// "stateOrProvinceName": "California",
// "localityName": "San Francisco",
// "organizationName": "GitHub, Inc.",
// "commonName": "github.com"
// }
// }
you can clearly see the issue and subject, to verify if the datastructures are are valid and are signed correctly, you need to look elsewhere.
FAQs
small ASN1-DER and PEM parser in about 100 lines
The npm package tder receives a total of 4 weekly downloads. As such, tder popularity was classified as not popular.
We found that tder demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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