v0.0.3: ecdsa is soooooo close
This commit is contained in:
parent
30e617ada1
commit
d928c2bdc0
@ -4,6 +4,7 @@ This is my project for the weekend. I expect to be finished today (Monday Nov 12
|
||||
* 2018-10-10 (Saturday) work has begun
|
||||
* 2018-10-11 (Sunday) W00T! got a CSR generated for RSA with VanillaJS ArrayBuffer
|
||||
* 2018-10-12 (Monday) Figuring out ECDSA CSRs right now
|
||||
* 2018-10-15 (Thursday) ECDSA is a trixy hobbit... but I think I've got it...
|
||||
|
||||
<!--
|
||||
Keypairs™ for node.js
|
||||
|
||||
13
convert-from-hex.js
Normal file
13
convert-from-hex.js
Normal file
@ -0,0 +1,13 @@
|
||||
'use strict';
|
||||
|
||||
var fs = require('fs');
|
||||
var path = require('path');
|
||||
|
||||
function convert(name) {
|
||||
var ext = path.extname(name);
|
||||
var csr = fs.readFileSync(name, 'ascii').replace(/\s\+/g, '');
|
||||
var bin = Buffer.from(csr, 'hex');
|
||||
fs.writeFileSync(name.replace(new RegExp('\\' + ext + '$'), '') + '.bin', bin);
|
||||
}
|
||||
|
||||
convert(process.argv[2]);
|
||||
@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "keypairs",
|
||||
"version": "0.0.2",
|
||||
"version": "0.0.3",
|
||||
"description": "Interchangeably use RSA & ECDSA with PEM and JWK for Signing, Verifying, CSR generation and JOSE. Ugh... that was a mouthful.",
|
||||
"main": "index.js",
|
||||
"scripts": {
|
||||
|
||||
153
pubkey.js
153
pubkey.js
@ -1,21 +1,23 @@
|
||||
(function (exports) {
|
||||
'use strict';
|
||||
|
||||
// 1.2.840.113549.1.1.1
|
||||
// rsaEncryption (PKCS #1)
|
||||
var OBJ_ID_RSA = '06 09 2A864886F70D010101'.replace(/\s+/g, '').toLowerCase();
|
||||
// 1.2.840.10045.3.1.7
|
||||
// prime256v1 (ANSI X9.62 named elliptic curve)
|
||||
var OBJ_ID_EC = '06 08 2A8648CE3D030107'.replace(/\s+/g, '').toLowerCase();
|
||||
|
||||
// 30 sequence
|
||||
// 03 bit string
|
||||
// 05 null
|
||||
// 06 object id
|
||||
|
||||
// 00 00 00 00
|
||||
// 30 82 01 22 30 0D 06 09 2A 86 48 86 F7 0D 01 01 01 05 00 03 82 01 0F 00 30 82 01 0A 02 82 01 01
|
||||
// 00 ... 02 03 01 00 01
|
||||
// 30 82 02 22 30 0D 06 09 2A 86 48 86 F7 0D 01 01 01 05 00 03 82 02 0F 00 30 82 02 0A 02 82 02 01
|
||||
// 00 ... 02 03 01 00 01
|
||||
|
||||
function parsePem(pem) {
|
||||
var typ;
|
||||
var pub;
|
||||
var der = fromBase64(pem.toString('ascii').split(/\n/).filter(function (line, i) {
|
||||
var crv;
|
||||
var der = fromBase64(pem.split(/\n/).filter(function (line, i) {
|
||||
if (0 === i) {
|
||||
if (/ PUBLIC /.test(line)) {
|
||||
pub = true;
|
||||
@ -31,18 +33,21 @@ function parsePem(pem) {
|
||||
return !/---/.test(line);
|
||||
}).join(''));
|
||||
|
||||
if (!typ) {
|
||||
if (pub) {
|
||||
// This is the RSA object ID
|
||||
if ('06092A864886F70D010101'.toLowerCase() === der.slice(6, 6 + 11).toString('hex')) {
|
||||
typ = 'RSA';
|
||||
}
|
||||
if (!typ || 'EC' === typ) {
|
||||
var hex = toHex(der).toLowerCase();
|
||||
// This is the RSA object ID
|
||||
if (-1 !== hex.indexOf(OBJ_ID_RSA)) {
|
||||
typ = 'RSA';
|
||||
} else if (-1 !== hex.indexOf(OBJ_ID_EC)) {
|
||||
typ = 'EC';
|
||||
crv = 'P-256';
|
||||
} else {
|
||||
// TODO
|
||||
// TODO more than just P-256
|
||||
console.warn("unsupported ec curve");
|
||||
}
|
||||
}
|
||||
|
||||
return { typ: typ, pub: pub, der: der };
|
||||
return { typ: typ, pub: pub, der: der, crv: crv };
|
||||
}
|
||||
|
||||
function toHex(ab) {
|
||||
@ -62,6 +67,60 @@ function toHex(ab) {
|
||||
return hex.join('');
|
||||
}
|
||||
|
||||
function fromHex(hex) {
|
||||
if ('undefined' !== typeof Buffer) {
|
||||
return Buffer.from(hex, 'hex');
|
||||
}
|
||||
var ab = new ArrayBuffer(hex.length/2);
|
||||
var i;
|
||||
var j;
|
||||
ab = new Uint8Array(ab);
|
||||
for (i = 0, j = 0; i < (hex.length/2); i += 1) {
|
||||
ab[i] = parseInt(hex.slice(j, j+1), 16);
|
||||
j += 2;
|
||||
}
|
||||
return ab.buffer;
|
||||
}
|
||||
|
||||
function readEcPrivkey(der) {
|
||||
return readEcPubkey(der);
|
||||
}
|
||||
|
||||
function readEcPubkey(der) {
|
||||
// the key is the last 520 bits of both the private key and the public key
|
||||
// he 3 bits prior identify the key as
|
||||
var x, y;
|
||||
var compressed;
|
||||
var keylen = 32;
|
||||
var offset = 64;
|
||||
var headerSize = 4;
|
||||
var header = toHex(der.slice(der.byteLength - (offset + headerSize), der.byteLength - offset));
|
||||
|
||||
if ('03420004' !== header) {
|
||||
offset = 32;
|
||||
header = toHex(der.slice(der.byteLength - (offset + headerSize), der.byteLength - offset));
|
||||
if ('03420002' !== header) {
|
||||
throw new Error("not a valid EC P-256 key (expected 0x0342004 or 0x0342002 as pub key preamble, but found " + header + ")");
|
||||
}
|
||||
}
|
||||
console.log('header', header);
|
||||
console.log('offset', offset);
|
||||
|
||||
// The one good thing that came from the b***kchain hysteria: good EC documentation
|
||||
// https://davidederosa.com/basic-blockchain-programming/elliptic-curve-keys/
|
||||
compressed = ('2' === header[header.byteLength -1]);
|
||||
console.log(der.byteLength - offset, (der.byteLength - offset) + keylen);
|
||||
x = der.slice(der.byteLength - offset, (der.byteLength - offset) + keylen);
|
||||
if (!compressed) {
|
||||
y = der.slice(der.byteLength - keylen, der.byteLength);
|
||||
}
|
||||
|
||||
return {
|
||||
x: x
|
||||
, y: y || null
|
||||
};
|
||||
}
|
||||
|
||||
function readPubkey(der) {
|
||||
var offset = 28 + 5; // header plus size
|
||||
var ksBytes = der.slice(30, 32);
|
||||
@ -122,23 +181,70 @@ function toRsaPub(pub) {
|
||||
return der.buffer;
|
||||
}
|
||||
|
||||
function formatAsPem(str, privacy, pemName) {
|
||||
var pemstr = (pemName ? pemName + ' ' : '');
|
||||
var privstr = (privacy ? privacy + ' ' : '');
|
||||
var finalString = '-----BEGIN ' + pemstr + privstr + 'KEY-----\n';
|
||||
function h(d) {
|
||||
d = d.toString(16);
|
||||
if (d.length % 2) {
|
||||
return '0' + d;
|
||||
}
|
||||
return d;
|
||||
}
|
||||
|
||||
// I used OpenSSL to create EC keys with the P-256 curve TODO P-384.
|
||||
// Then I used https://lapo.it/asn1js/ to see which bits changed.
|
||||
// And I created a template from the bits that do and don't.
|
||||
// No ASN.1 and X.509 parsers or generators. Yay!
|
||||
var ecP256Asn1Head = (
|
||||
'30 {n}' // 0x59 = 89 bytes // sequence
|
||||
+ '30 _13' // 0x13 = 19 bytes // sequence
|
||||
+ '06 _07 2A 86 48 CE 3D 02 01' // 0x07 = 7 bytes // 1.2.840.10045.2.1 ecPublicKey (ANSI X9.62 public key type)
|
||||
+ '06 _08 2A 86 48 CE 3D 03 01 07' // 0x08 = 8 bytes // 1.2.840.10045.3.1.7 prime256v1 (ANSI X9.62 named elliptic curve)
|
||||
+ '03 {p} 00 {c} {x} {y}' // xlen+ylen+1+1 // bit string
|
||||
).replace(/[\s_]+/g, '')
|
||||
;
|
||||
function toEcPub(x, y) {
|
||||
// 256 // 2048-bit
|
||||
var keylen = toHex([ x.byteLength + (y && y.byteLength || 0) ]);
|
||||
var head = ecP256Asn1Head
|
||||
.replace(/{n}/, h(0x13 + 2 + 2 + keylen))
|
||||
.replace(/{p}/, h(2 + keylen))
|
||||
.replace(/{c}/, y && '04' || '02')
|
||||
.replace(/{x}/, toHex(x))
|
||||
.replace(/{y}/, y && toHex(y) || '')
|
||||
;
|
||||
return fromHex(head);
|
||||
}
|
||||
|
||||
function formatAsPem(str) {
|
||||
var finalString = '';
|
||||
|
||||
while (str.length > 0) {
|
||||
finalString += str.substring(0, 64) + '\n';
|
||||
str = str.substring(64);
|
||||
}
|
||||
return finalString;
|
||||
}
|
||||
|
||||
finalString = finalString + '-----END ' + pemstr + privstr + 'KEY-----';
|
||||
function formatAsPrivatePem(str, privacy, pemName) {
|
||||
var pemstr = (pemName ? pemName + ' ' : '');
|
||||
var privstr = (privacy ? privacy + ' ' : '');
|
||||
var finalString = '-----BEGIN ' + pemstr + privstr + 'KEY-----\n';
|
||||
finalString += formatAsPem(str);
|
||||
finalString += '-----END ' + pemstr + privstr + 'KEY-----';
|
||||
|
||||
return finalString;
|
||||
}
|
||||
|
||||
function formatAsPublicPem(str) {
|
||||
return formatAsPem(str, 'PUBLIC', '');
|
||||
var privacy = 'PUBLIC';
|
||||
var pemName = '';
|
||||
var pemstr = (pemName ? pemName + ' ' : '');
|
||||
var privstr = (privacy ? privacy + ' ' : '');
|
||||
|
||||
var finalString = '-----BEGIN ' + pemstr + privstr + 'KEY-----\n';
|
||||
finalString += formatAsPem(str);
|
||||
finalString += '-----END ' + pemstr + privstr + 'KEY-----';
|
||||
|
||||
return finalString;
|
||||
}
|
||||
|
||||
function toBase64(der) {
|
||||
@ -172,10 +278,15 @@ function fromBase64(b64) {
|
||||
exports.parsePem = parsePem;
|
||||
exports.toBase64 = toBase64;
|
||||
exports.toRsaPub = toRsaPub;
|
||||
exports.toEcPub = toEcPub;
|
||||
exports.formatAsPublicPem = formatAsPublicPem;
|
||||
exports.formatAsPrivatePem = formatAsPrivatePem;
|
||||
exports.formatAsPem = formatAsPem;
|
||||
exports.readPubkey = readPubkey;
|
||||
exports.readEcPubkey = readEcPubkey;
|
||||
exports.readEcPrivkey = readEcPrivkey;
|
||||
exports.readPrivkey = readPrivkey;
|
||||
exports.toHex = toHex;
|
||||
exports.fromHex = fromHex;
|
||||
|
||||
}('undefined' !== typeof module ? module.exports: window));
|
||||
|
||||
387
re-sign.js
387
re-sign.js
@ -4,22 +4,27 @@ var crypto = require('crypto');
|
||||
var fs = require('fs');
|
||||
var pubkey = require('./pubkey.js');
|
||||
|
||||
var keyname = process.argv[2];
|
||||
var dername = process.argv[3];
|
||||
|
||||
var keypem = fs.readFileSync(keyname);
|
||||
var csrFull = fs.readFileSync(dername);
|
||||
var csrFull = csrFull.buffer.slice(csrFull.byteOffset, csrFull.byteOffset + csrFull.byteLength);
|
||||
|
||||
// these are static ASN.1 segments
|
||||
// The head specifies that there will be 3 segments and a content length
|
||||
// (those segments will be content, signature header, and signature)
|
||||
var csrHead = '30 82 {0seq0len}'.replace(/\s+/g, '');
|
||||
// The tail specifies the RSA256 signature header (and is followed by the signature
|
||||
var csrRsaFoot =
|
||||
( '30 0D 06 09 2A 86 48 86 F7 0D 01 01 0B'
|
||||
( '30 0D'
|
||||
// 1.2.840.113549.1.1.11 sha256WithRSAEncryption (PKCS #1)
|
||||
+ '06 09 2A 86 48 86 F7 0D 01 01 0B'
|
||||
+ '05 00'
|
||||
+ '03 82 01 01 00'
|
||||
+ '03 82 01 01 00' // preamble to sig
|
||||
).replace(/\s+/g, '');
|
||||
var csrEcFoot =
|
||||
( '30 0A'
|
||||
// 1.2.840.10045.4.3.2 ecdsaWithSHA256
|
||||
// (ANSI X9.62 ECDSA algorithm with SHA256)
|
||||
+ '06 08 2A 86 48 CE 3D 04 03 02'
|
||||
+ '03 49 00'
|
||||
+ '30 46'
|
||||
+ '02 21 00 {s}' // 32 bytes of sig
|
||||
+ '02 21 00 {r}' // 32 bytes of sig
|
||||
).replace(/\s+/g, '');
|
||||
var csrDomains = '82 {dlen} {domain.tld}'; // 2+n bytes (type 82?)
|
||||
/*
|
||||
@ -57,19 +62,31 @@ var csrRsaContent =
|
||||
|
||||
function privateToPub(pem) {
|
||||
var pubbuf;
|
||||
var pubxy;
|
||||
var key = pubkey.parsePem(pem);
|
||||
if ('RSA' !== key.typ) {
|
||||
throw new Error(key.typ + " not supported");
|
||||
}
|
||||
if (key.pub) {
|
||||
pubbuf = pubkey.readPubkey(key.der);
|
||||
} else {
|
||||
pubbuf = pubkey.readPrivkey(key.der);
|
||||
var pubder;
|
||||
|
||||
if ('RSA' === key.typ) {
|
||||
if (key.pub) {
|
||||
pubbuf = pubkey.readPubkey(key.der);
|
||||
} else {
|
||||
pubbuf = pubkey.readPrivkey(key.der);
|
||||
}
|
||||
pubder = pubkey.toRsaPub(pubbuf);
|
||||
} else if ('EC' === key.typ) {
|
||||
if (key.crv && 'P-256' !== key.crv) {
|
||||
throw new Error("unsupported curve type");
|
||||
}
|
||||
if (key.pub) {
|
||||
pubxy = pubkey.readEcPubkey(key.der);
|
||||
} else {
|
||||
pubxy = pubkey.readEcPrivkey(key.der);
|
||||
}
|
||||
pubder = pubkey.toEcPub(pubxy.x, pubxy.y);
|
||||
}
|
||||
|
||||
//console.log(pubbuf.byteLength, pubkey.toHex(pubbuf));
|
||||
var der = pubkey.toRsaPub(pubbuf);
|
||||
var b64 = pubkey.toBase64(der);
|
||||
var b64 = pubkey.toBase64(pubder);
|
||||
return pubkey.formatAsPublicPem(b64);
|
||||
}
|
||||
|
||||
@ -89,45 +106,6 @@ function pubToPem(pubbuf) {
|
||||
return pubkey.formatAsPublicPem(b64);
|
||||
}
|
||||
|
||||
var sigend = (csrFull.byteLength - (2048 / 8));
|
||||
var sig = csrFull.slice(sigend);
|
||||
|
||||
console.log();
|
||||
console.log();
|
||||
console.log('csr (' + csrFull.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrFull));
|
||||
console.log();
|
||||
|
||||
// First 4 bytes define Segment, segment length, and content length
|
||||
console.log(sigend, csrRsaFoot, csrRsaFoot.length/2);
|
||||
var csrbody = csrFull.slice(4, sigend - (csrRsaFoot.length/2));
|
||||
console.log('csr body (' + csrbody.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrbody));
|
||||
console.log();
|
||||
|
||||
var csrpub = csrFull.slice(63 + 5, 63 + 5 + 256);
|
||||
console.log('csr pub (' + csrpub.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrpub));
|
||||
console.log();
|
||||
|
||||
console.log('sig (' + sig.byteLength + ')');
|
||||
console.log(pubkey.toHex(sig));
|
||||
console.log();
|
||||
|
||||
var csrpem = pubToPem(csrpub);
|
||||
console.log(csrpem);
|
||||
console.log();
|
||||
|
||||
var prvpem = privateToPub(keypem);
|
||||
console.log(prvpem);
|
||||
console.log();
|
||||
|
||||
if (csrpem === prvpem) {
|
||||
console.log("Public Keys Match");
|
||||
} else {
|
||||
throw new Error("public key read from keyfile doesn't match public key read from CSR");
|
||||
}
|
||||
|
||||
function h(d) {
|
||||
d = d.toString(16);
|
||||
if (d.length % 2) {
|
||||
@ -163,13 +141,14 @@ function createCsrBodyRsa(domains, csrpub) {
|
||||
.replace(/{[^}]+}/, h(
|
||||
3
|
||||
+ 13 + sublen
|
||||
+ 38 + publen
|
||||
+ 38 + publen // Length for RSA-related stuff
|
||||
+ 30 + sanlen
|
||||
))
|
||||
|
||||
// #0 Total 3
|
||||
, '02 01 00' // 3 bytes, int 0
|
||||
|
||||
// Subject
|
||||
// #1 Total 2+11+n
|
||||
, '30 {3.2.0seqlen}' // 2 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(2+2+5+2+sublen))
|
||||
@ -182,6 +161,7 @@ function createCsrBodyRsa(domains, csrpub) {
|
||||
.replace(/{dlen}/, h(sublen))
|
||||
.replace(/{domain\.tld}/, strToHex(domains[0]))
|
||||
|
||||
// Public Key
|
||||
// #2 Total 4+28+n+1+5
|
||||
, '30 82 {8.2.2seqlen}' // 4 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(2+11+2+4+1+4+4+publen+1+5))
|
||||
@ -198,6 +178,7 @@ function createCsrBodyRsa(domains, csrpub) {
|
||||
, '02 03 {mod}' // 5 bytes, key and modules [01 00 01]
|
||||
.replace(/{mod}/, '01 00 01')
|
||||
|
||||
// AltNames
|
||||
// #3 Total 2+28+n
|
||||
, 'A0 {16.2.3ellen}' // 2 bytes, ?? [4B]
|
||||
.replace(/{[^}]+}/, h(2+11+2+2+2+5+2+2+sanlen))
|
||||
@ -222,25 +203,44 @@ function createCsrBodyRsa(domains, csrpub) {
|
||||
return fromHex(body);
|
||||
}
|
||||
|
||||
function createCsrBodyEc(domains, csrpub) {
|
||||
function createCsrBodyEc(domains, xy) {
|
||||
var altnames = domains.map(function (d) {
|
||||
return csrDomains.replace(/{dlen}/, h(d.length)).replace(/{domain\.tld}/, strToHex(d));
|
||||
}).join('').replace(/\s+/g, '');
|
||||
var publen = csrpub.byteLength;
|
||||
var sublen = domains[0].length;
|
||||
var sanlen = (altnames.length/2);
|
||||
var publen = xy.x.byteLength;
|
||||
var compression = '04';
|
||||
var hxy = '';
|
||||
// 04 == x+y, 02 == x-only
|
||||
if (xy.y) {
|
||||
publen += xy.y.byteLength;
|
||||
} else {
|
||||
// Note: I don't intend to support compression - it isn't used by most
|
||||
// libraries and it requir more dependencies for bigint ops to deflate.
|
||||
// This is more just a placeholder. It won't work right now anyway
|
||||
// because compression requires an exta bit stored (odd vs even), which
|
||||
// I haven't learned yet, and I'm not sure if it's allowed at all
|
||||
compression = '02';
|
||||
}
|
||||
hxy += pubkey.toHex(xy.x);
|
||||
if (xy.y) {
|
||||
hxy += pubkey.toHex(xy.y);
|
||||
}
|
||||
console.log('hxy:', hxy);
|
||||
|
||||
var body = [ '30 82 {1.1.0seqlen}' // 4 bytes, sequence
|
||||
var body = [ '30 81 {+85+n}' // 4 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(
|
||||
3
|
||||
+ 13 + sublen
|
||||
+ 38 + publen
|
||||
+ 27 + publen // Length for EC-related P-256 stuff
|
||||
+ 30 + sanlen
|
||||
))
|
||||
|
||||
// #0 Total 3
|
||||
, '02 01 00' // 3 bytes, int 0
|
||||
|
||||
// Subject
|
||||
// #1 Total 2+11+n
|
||||
, '30 {3.2.0seqlen}' // 2 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(2+2+5+2+sublen))
|
||||
@ -253,38 +253,40 @@ function createCsrBodyEc(domains, csrpub) {
|
||||
.replace(/{dlen}/, h(sublen))
|
||||
.replace(/{domain\.tld}/, strToHex(domains[0]))
|
||||
|
||||
// #2 Total 4+28+n+1+5
|
||||
, '30 82 {8.2.2seqlen}' // 4 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(2+11+2+4+1+4+4+publen+1+5))
|
||||
, '30 0D' // 2 bytes, sequence
|
||||
, '06 09 2A 86 48 86 F7 0D 01 01 01' // 11 bytes, rsaEncryption (PKCS #1)
|
||||
, '05 00' // 2 bytes, null (why?)
|
||||
, '03 82 {12.3.0bslen} 00' // 4+1 bytes, bit string [01 0F]
|
||||
.replace(/{[^}]+}/, h(1+4+4+publen+1+5))
|
||||
, '30 82 {13.4.0seqlen}' // 4 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(4+publen+1+5))
|
||||
, '02 82 {klen} 00 {key}' // 4+n bytes, int (RSA Pub Key)
|
||||
.replace(/{klen}/, h(publen+1))
|
||||
.replace(/{key}/, pubkey.toHex(csrpub))
|
||||
, '02 03 {mod}' // 5 bytes, key and modules [01 00 01]
|
||||
.replace(/{mod}/, '01 00 01')
|
||||
// P-256 Public Key
|
||||
// #2 Total 2+25+xy
|
||||
, '30 {+25+xy}' // 2 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(2+9+10+3+1+publen))
|
||||
, '30 13' // 2 bytes, sequence
|
||||
// 1.2.840.10045.2.1 ecPublicKey
|
||||
// (ANSI X9.62 public key type)
|
||||
, '06 07 2A 86 48 CE 3D 02 01' // 9 bytes, object id
|
||||
// 1.2.840.10045.3.1.7 prime256v1
|
||||
// (ANSI X9.62 named elliptic curve)
|
||||
, '06 08 2A 86 48 CE 3D 03 01 07' // 10 bytes, object id
|
||||
, '03 {xylen} 00 {xy}' // 3+1+n bytes
|
||||
.replace(/{xylen}/, h(publen+2))
|
||||
.replace(/{xy}/, compression + hxy)
|
||||
|
||||
// Altnames
|
||||
// #3 Total 2+28+n
|
||||
, 'A0 {16.2.3ellen}' // 2 bytes, ?? [4B]
|
||||
, 'A0 {+28}' // 2 bytes, ?? [4B]
|
||||
.replace(/{[^}]+}/, h(2+11+2+2+2+5+2+2+sanlen))
|
||||
, '30 {17.3.9seqlen}' // 2 bytes, sequence
|
||||
, '30 {+26}' // 2 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(11+2+2+2+5+2+2+sanlen))
|
||||
, '06 09 2A 86 48 86 F7 0D 01 09 0E' // 11 bytes, object id (extensionRequest (PKCS #9 via CRMF))
|
||||
, '31 {19.5.0setlen}' // 2 bytes, set
|
||||
// (extensionRequest (PKCS #9 via CRMF))
|
||||
, '06 09 2A 86 48 86 F7 0D 01 09 0E' // 11 bytes, object id
|
||||
, '31 {+13}' // 2 bytes, set
|
||||
.replace(/{[^}]+}/, h(2+2+5+2+2+sanlen))
|
||||
, '30 {20.6.0seqlen}' // 2 bytes, sequence
|
||||
, '30 {+11}' // 2 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(2+5+2+2+sanlen))
|
||||
, '30 {21.7.0seqlen}' // 2 bytes, sequence
|
||||
, '30 {+9}' // 2 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(5+2+2+sanlen))
|
||||
, '06 03 55 1D 11' // 5 bytes, object id (subjectAltName (X.509 extension))
|
||||
, '04 {23.8.0octlen}' // 2 bytes, octet string
|
||||
// (subjectAltName (X.509 extension))
|
||||
, '06 03 55 1D 11' // 5 bytes, object id
|
||||
, '04 {+2}' // 2 bytes, octet string
|
||||
.replace(/{[^}]+}/, h(2+sanlen))
|
||||
, '30 {24.9.0seqlen}' // 2 bytes, sequence
|
||||
, '30 {+n}' // 2 bytes, sequence
|
||||
.replace(/{[^}]+}/, h(sanlen))
|
||||
, '{altnames}' // n (elements of sequence)
|
||||
.replace(/{altnames}/, altnames)
|
||||
@ -293,7 +295,37 @@ function createCsrBodyEc(domains, csrpub) {
|
||||
return fromHex(body);
|
||||
}
|
||||
|
||||
function createCsr(domains, keypem) {
|
||||
// https://gist.github.com/codermapuche/da4f96cdb6d5ff53b7ebc156ec46a10a
|
||||
function signEc(keypem, ab) {
|
||||
var sign = crypto.createSign('SHA256');
|
||||
sign.write(new Uint8Array(ab));
|
||||
sign.end();
|
||||
|
||||
var sig = sign.sign(keypem);
|
||||
console.log("");
|
||||
console.log("SIGNING!!");
|
||||
console.log('csr body:', pubkey.toHex(new Uint8Array(ab)));
|
||||
console.log('ec sig:', pubkey.toHex(sig));
|
||||
console.log("");
|
||||
sig = new Uint8Array(sig.buffer.slice(sig.byteOffset, sig.byteOffset + sig.byteLength));
|
||||
|
||||
var rlen = new Uint8Array(sig)[3];
|
||||
var r = sig.slice(4, 4 + rlen);
|
||||
var slen = sig.slice[5 + rlen];
|
||||
var s = sig.slice(6 + rlen, 6 + rlen + slen);
|
||||
|
||||
// not sure what this is all about...
|
||||
while(r[0] === 0) {
|
||||
r = r.slice(1);
|
||||
}
|
||||
while(s[0] === 0) {
|
||||
s = s.slice(1);
|
||||
}
|
||||
|
||||
return { r: r, s: s };
|
||||
}
|
||||
|
||||
function createRsaCsr(domains, keypem, csrpub) {
|
||||
// TODO get pub from priv
|
||||
var body = createCsrBodyRsa(domains, csrpub);
|
||||
var sign = crypto.createSign('SHA256');
|
||||
@ -322,17 +354,55 @@ function createCsr(domains, keypem) {
|
||||
i += 1;
|
||||
});
|
||||
|
||||
var pem = pubkey.formatAsPublicPem(pubkey.toBase64(ab));
|
||||
var pem = pubkey.formatAsPem(pubkey.toBase64(ab));
|
||||
|
||||
return pem;
|
||||
}
|
||||
|
||||
//var pem = createCsr([ 'example.com', 'www.example.com', 'api.example.com' ], keypem);
|
||||
var pem = createCsr([ 'whatever.net', 'api.whatever.net' ], keypem);
|
||||
console.log('pem:');
|
||||
console.log(pem);
|
||||
return;
|
||||
function createEcCsr(domains, keypem, pubj) {
|
||||
// TODO get pub from priv
|
||||
|
||||
console.log('[TRACE] createEcCsr');
|
||||
var body = createCsrBodyEc(domains, pubj);
|
||||
console.log('csr body:', pubkey.toHex(body))
|
||||
var sig = signEc(keypem, body);
|
||||
//var siglen = sig.s.byteLength + sig.r.byteLength;
|
||||
console.log('r:', pubkey.toHex(sig.r));
|
||||
console.log('s:', pubkey.toHex(sig.s));
|
||||
|
||||
// XXX TODO this is junk, not real
|
||||
var foot = csrEcFoot
|
||||
.replace(/{s}/, pubkey.toHex(sig.s))
|
||||
.replace(/{r}/, pubkey.toHex(sig.r))
|
||||
;
|
||||
var len = body.byteLength + (foot.length/2) + sig.r.byteLength + sig.s.byteLength;
|
||||
console.log('headlen', h(len));
|
||||
var head = csrHead.replace(/{[^}]+}/, h(len));
|
||||
var ab = new Uint8Array(new ArrayBuffer(4 + len));
|
||||
var i = 0;
|
||||
fromHex(head).forEach(function (b) {
|
||||
ab[i] = b;
|
||||
i += 1;
|
||||
});
|
||||
body.forEach(function (b) {
|
||||
ab[i] = b;
|
||||
i += 1;
|
||||
});
|
||||
fromHex(foot).forEach(function (b) {
|
||||
ab[i] = b;
|
||||
i += 1;
|
||||
});
|
||||
new Uint8Array(sig).forEach(function (b) {
|
||||
ab[i] = b;
|
||||
i += 1;
|
||||
});
|
||||
|
||||
var pem = pubkey.formatAsPem(pubkey.toBase64(ab));
|
||||
|
||||
return pem;
|
||||
}
|
||||
|
||||
/*
|
||||
function signagain(csrbody) {
|
||||
var longEnough = csrbody.byteLength > 256;
|
||||
|
||||
@ -393,12 +463,135 @@ function signagain(csrbody) {
|
||||
//var head = csrHead.replace(/xxxx/);
|
||||
return false;
|
||||
}
|
||||
*/
|
||||
|
||||
function check(domains, keypem, csrFull) {
|
||||
var pemblock = pubkey.parsePem(keypem);
|
||||
if ('EC' === pemblock.typ) {
|
||||
console.log("EC TIME:");
|
||||
console.log(pemblock);
|
||||
checkEc(domains, keypem, pemblock, csrFull);
|
||||
} else if ('RSA' === pemblock.typ) {
|
||||
console.log("RSA TIME!");
|
||||
checkRsa(domains, keypem, pemblock, csrFull);
|
||||
} else {
|
||||
// TODO try
|
||||
throw new Error("unknown key type");
|
||||
}
|
||||
}
|
||||
|
||||
// TODO
|
||||
function checkEc(domains, keypem, pemblock, csrFull) {
|
||||
var bodyend = (csrFull.byteLength - (3+2+2+32+2+32));
|
||||
var sig = csrFull.slice(bodyend);
|
||||
|
||||
console.log();
|
||||
console.log();
|
||||
console.log('csr (' + csrFull.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrFull));
|
||||
console.log();
|
||||
|
||||
// First 4 bytes define Segment, segment length, and content length
|
||||
var csrbody = csrFull.slice(4, bodyend);
|
||||
console.log();
|
||||
console.log('csr body (' + csrbody.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrbody));
|
||||
console.log();
|
||||
|
||||
var cnend = 21 + 2 + domains[0].length + 2 + 2 + 7 + 8;
|
||||
var csrpub = csrFull.slice(cnend, cnend+2+89);
|
||||
console.log('csr pub (' + csrpub.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrpub));
|
||||
console.log();
|
||||
|
||||
console.log('sig (' + sig.byteLength + ')');
|
||||
console.log(pubkey.toHex(sig));
|
||||
console.log();
|
||||
|
||||
/*
|
||||
var csrpem = pubToPem(csrpub);
|
||||
console.log(csrpem);
|
||||
console.log();
|
||||
|
||||
var prvpem = privateToPub(keypem);
|
||||
console.log(prvpem);
|
||||
console.log();
|
||||
|
||||
if (csrpem === prvpem) {
|
||||
console.log("Public Keys Match");
|
||||
} else {
|
||||
throw new Error("public key read from keyfile doesn't match public key read from CSR");
|
||||
}
|
||||
*/
|
||||
|
||||
var pubj = pubkey.readEcPubkey(pemblock.der);
|
||||
console.log('pubj:', pubj);
|
||||
var pem = createEcCsr(domains, keypem, pubj, csrpub);
|
||||
console.log('EC CSR PEM:');
|
||||
console.log(pem);
|
||||
return;
|
||||
}
|
||||
|
||||
function checkRsa(domains, keypem, pubj, csrFull) {
|
||||
var sigend = (csrFull.byteLength - (2048 / 8));
|
||||
var sig = csrFull.slice(sigend);
|
||||
|
||||
console.log();
|
||||
console.log();
|
||||
console.log('csr (' + csrFull.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrFull));
|
||||
console.log();
|
||||
|
||||
// First 4 bytes define Segment, segment length, and content length
|
||||
console.log(sigend, csrRsaFoot, csrRsaFoot.length/2);
|
||||
var csrbody = csrFull.slice(4, sigend - (csrRsaFoot.length/2));
|
||||
console.log(pubkey.toHex(csrbody.slice(0, csrbody.byteLength - sig.byteLength)));
|
||||
console.log();
|
||||
console.log('csr body (' + csrbody.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrbody));
|
||||
console.log();
|
||||
|
||||
var csrpub = csrFull.slice(63 + 5, 63 + 5 + 256);
|
||||
console.log('csr pub (' + csrpub.byteLength + ')');
|
||||
console.log(pubkey.toHex(csrpub));
|
||||
console.log();
|
||||
|
||||
console.log('sig (' + sig.byteLength + ')');
|
||||
console.log(pubkey.toHex(sig));
|
||||
console.log();
|
||||
|
||||
var csrpem = pubToPem(csrpub);
|
||||
console.log(csrpem);
|
||||
console.log();
|
||||
|
||||
var prvpem = privateToPub(keypem);
|
||||
console.log(prvpem);
|
||||
console.log();
|
||||
|
||||
if (csrpem === prvpem) {
|
||||
console.log("Public Keys Match");
|
||||
} else {
|
||||
throw new Error("public key read from keyfile doesn't match public key read from CSR");
|
||||
}
|
||||
|
||||
var pem = createRsaCsr(domains, keypem, csrpub);
|
||||
console.log('RSA CSR PEM:');
|
||||
console.log(pem);
|
||||
return;
|
||||
}
|
||||
|
||||
var keyname = process.argv[2];
|
||||
var dername = process.argv[3];
|
||||
|
||||
var keypem = fs.readFileSync(keyname, 'ascii');
|
||||
var csrFull = fs.readFileSync(dername);
|
||||
var csrFull = csrFull.buffer.slice(csrFull.byteOffset, csrFull.byteOffset + csrFull.byteLength);
|
||||
|
||||
console.log();
|
||||
|
||||
console.log("CSR");
|
||||
console.log(pubkey.toHex(csrFull));
|
||||
console.log();
|
||||
console.log(pubkey.toHex(csrbody.slice(0, csrbody.byteLength - sig.byteLength)));
|
||||
console.log();
|
||||
console.log();
|
||||
//signagain(csrbody);
|
||||
|
||||
//check([ 'whatever.net', 'api.whatever.net' ], keypem, csrFull);
|
||||
check([ 'example.com', 'www.example.com', 'api.example.com' ], keypem, csrFull);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user