63 lines
1.7 KiB
JavaScript
63 lines
1.7 KiB
JavaScript
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'use strict';
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var ASN1 = require('./asn1-packer.js');
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var Enc = require('./encoding.js');
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var x509 = module.exports;
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// 1.2.840.10045.3.1.7
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// prime256v1 (ANSI X9.62 named elliptic curve)
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var OBJ_ID_EC = '06 08 2A8648CE3D030107'.replace(/\s+/g, '').toLowerCase();
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// 1.3.132.0.34
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// secp384r1 (SECG (Certicom) named elliptic curve)
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var OBJ_ID_EC_384 = '06 05 2B81040022'.replace(/\s+/g, '').toLowerCase();
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// 1.2.840.10045.2.1
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// ecPublicKey (ANSI X9.62 public key type)
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var OBJ_ID_EC_PUB = '06 07 2A8648CE3D0201'.replace(/\s+/g, '').toLowerCase();
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x509.packSec1 = function (jwk) {
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var d = Enc.base64ToHex(jwk.d);
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var x = Enc.base64ToHex(jwk.x);
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var y = Enc.base64ToHex(jwk.y);
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var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
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return Enc.hexToUint8(
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ASN1('30'
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, ASN1.UInt('01')
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, ASN1('04', d)
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, ASN1('A0', objId)
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, ASN1('A1', ASN1.BitStr('04' + x + y)))
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);
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};
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x509.packPkcs8 = function (jwk) {
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var d = Enc.base64ToHex(jwk.d);
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var x = Enc.base64ToHex(jwk.x);
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var y = Enc.base64ToHex(jwk.y);
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var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
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return Enc.hexToUint8(
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ASN1('30'
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, ASN1.UInt('00')
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, ASN1('30'
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, OBJ_ID_EC_PUB
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, objId
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)
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, ASN1('04'
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, ASN1('30'
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, ASN1.UInt('01')
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, ASN1('04', d)
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, ASN1('A1', ASN1.BitStr('04' + x + y)))))
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);
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};
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x509.packSpki = function (jwk) {
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var x = Enc.base64ToHex(jwk.x);
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var y = Enc.base64ToHex(jwk.y);
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var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
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return Enc.hexToUint8(
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ASN1('30'
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, ASN1('30'
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, OBJ_ID_EC_PUB
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, objId
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)
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, ASN1.BitStr('04' + x + y))
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);
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};
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x509.packPkix = x509.packSpki;
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