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7 changed files with 21 additions and 87 deletions

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@ -43,7 +43,6 @@ eckles.import({ pem: pem }).then(function (jwk) {
* [x] SEC1/X9.62, PKCS#8, SPKI/PKIX
* [x] P-256 (prime256v1, secp256r1), P-384 (secp384r1)
* [x] SSH (RFC4716), (RFC 4716/SSH2)
```js
var eckles = require('eckles');
@ -77,22 +76,6 @@ eckles.export({ jwk: jwk, format: 'pkcs8' }).then(function (pem) {
});
```
`format: 'ssh'`:
Although SSH uses SEC1 for private keys, it uses ts own special non-ASN1 format
(affectionately known as rfc4716) for public keys. I got curious and then decided
to add this format as well.
To get the same format as you
would get with `ssh-keygen`, pass `ssh` as the format option:
```js
eckles.export({ jwk: jwk, format: 'ssh' }).then(function (pub) {
// Special SSH2 Public Key format (RFC 4716)
console.log(pub);
});
```
`public: 'true'`:
If a private key is used as input, a private key will be output.

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@ -16,8 +16,7 @@ try {
}
if ('string' === typeof key) {
var pub = (-1 !== [ 'public', 'spki', 'pkix' ].indexOf(format));
eckles.import({ pem: key, public: (pub || format) }).then(function (jwk) {
eckles.import({ pem: key }).then(function (jwk) {
console.log(JSON.stringify(jwk, null, 2));
}).catch(function (err) {
console.error(err);

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@ -1 +0,0 @@
ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBCE9Uli8bGnD4hOWdeo5KKQJ/P/vOazI4MgqJK54w37emP2JwOAOdMmXuwpxbKng3KZz27mz+nKWIlXJ3rzSGMo= P-256@localhost

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@ -1 +0,0 @@
ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBNsxFNGygmu3oyiyCfKDxpy4aoccor+P8N/CtmtEjwunbEnff4JTSfJXKr9LH3+Rm1Q+I57vN0urHJ+v03gI9xGTkRBmzrOnc6FaWroJ/l0DDMgvTuFS2wwxRgWUyZTLGw== P-384@localhost

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@ -150,11 +150,11 @@ EC.parseSec1 = function parseEcOnlyPrivkey(u8, jwk) {
kty: jwk.kty
, crv: jwk.crv
, d: PEM._toUrlSafeBase64(d)
//, dh: toHex(d)
//, dh: d
, x: PEM._toUrlSafeBase64(x)
//, xh: toHex(x)
//, xh: x
, y: PEM._toUrlSafeBase64(y)
//, yh: toHex(y)
//, yh: y
};
};
@ -187,11 +187,11 @@ EC.parsePkcs8 = function parseEcPkcs8(u8, jwk) {
kty: jwk.kty
, crv: jwk.crv
, d: PEM._toUrlSafeBase64(d)
//, dh: toHex(d)
//, dh: d
, x: PEM._toUrlSafeBase64(x)
//, xh: toHex(x)
//, xh: x
, y: PEM._toUrlSafeBase64(y)
//, yh: toHex(y)
//, yh: y
};
};
@ -219,9 +219,9 @@ EC.parseSpki = function parsePem(u8, jwk) {
kty: jwk.kty
, crv: jwk.crv
, x: PEM._toUrlSafeBase64(x)
//, xh: toHex(x)
//, xh: x
, y: PEM._toUrlSafeBase64(y)
//, yh: toHex(y)
//, yh: y
};
};
EC.parsePkix = EC.parseSpki;
@ -244,15 +244,15 @@ EC.parse = function parseEc(opts) {
// PKCS8
if (0x02 === u8[3] && 0x30 === u8[6] && 0x06 === u8[8]) {
//console.log("PKCS8", u8[3].toString(16), u8[6].toString(16), u8[8].toString(16));
jwk = EC.parsePkcs8(u8, jwk);
return EC.parsePkcs8(u8, jwk);
// EC-only
} else if (0x02 === u8[2] && 0x04 === u8[5] && 0xA0 === u8[39]) {
//console.log("EC---", u8[2].toString(16), u8[5].toString(16), u8[39].toString(16));
jwk = EC.parseSec1(u8, jwk);
return EC.parseSec1(u8, jwk);
// SPKI/PKIK (Public)
} else if (0x30 === u8[2] && 0x06 === u8[4] && 0x06 === u8[13]) {
//console.log("SPKI-", u8[2].toString(16), u8[4].toString(16), u8[13].toString(16));
jwk = EC.parseSpki(u8, jwk);
return EC.parseSpki(u8, jwk);
// Error
} else {
//console.log("PKCS8", u8[3].toString(16), u8[6].toString(16), u8[8].toString(16));
@ -266,15 +266,15 @@ EC.parse = function parseEc(opts) {
// PKCS8
if (0x02 === u8[3] && 0x30 === u8[6] && 0x06 === u8[8]) {
//console.log("PKCS8", u8[3].toString(16), u8[6].toString(16), u8[8].toString(16));
jwk = EC.parsePkcs8(u8, jwk);
return EC.parsePkcs8(u8, jwk);
// EC-only
} else if (0x02 === u8[3] && 0x04 === u8[6] && 0xA0 === u8[56]) {
//console.log("EC---", u8[3].toString(16), u8[6].toString(16), u8[56].toString(16));
jwk = EC.parseSec1(u8, jwk);
return EC.parseSec1(u8, jwk);
// SPKI/PKIK (Public)
} else if (0x30 === u8[2] && 0x06 === u8[4] && 0x06 === u8[13]) {
//console.log("SPKI-", u8[2].toString(16), u8[4].toString(16), u8[13].toString(16));
jwk = EC.parseSpki(u8, jwk);
return EC.parseSpki(u8, jwk);
// Error
} else {
//console.log("PKCS8", u8[3].toString(16), u8[6].toString(16), u8[8].toString(16));
@ -285,14 +285,6 @@ EC.parse = function parseEc(opts) {
} else {
throw new Error("Supported key types are P-256 and P-384");
}
if (opts.public) {
if (true !== opts.public) {
throw new Error("options.public must be either `true` or `false` not ("
+ typeof opts.public + ") '" + opts.public + "'");
}
delete jwk.d;
}
return jwk;
});
};
EC.toJwk = EC.import = EC.parse;
@ -304,20 +296,17 @@ EC.pack = function (opts) {
}
var jwk = JSON.parse(JSON.stringify(opts.jwk));
var format = opts.format;
if (opts.public || -1 !== [ 'spki', 'pkix', 'ssh', 'rfc4716' ].indexOf(format)) {
if (opts.public || -1 !== [ 'spki', 'pkix' ].indexOf(format)) {
jwk.d = null;
}
if ('EC' !== jwk.kty) {
throw new Error("options.jwk.kty must be 'EC' for EC keys");
}
if (!jwk.d) {
if (!format || -1 !== [ 'spki', 'pkix' ].indexOf(format)) {
if (!format || 'pkix' === format) {
format = 'spki';
} else if (-1 !== [ 'ssh', 'rfc4716' ].indexOf(format)) {
format = 'ssh';
} else {
throw new Error("options.format must be 'spki' or 'ssh' for public EC keys, not ("
+ typeof format + ") " + format);
} else if ('spki' !== format) {
throw new Error("options.format must be 'spki' for public EC keys");
}
} else {
if (!format || 'sec1' === format) {
@ -337,12 +326,8 @@ EC.pack = function (opts) {
return PEM.packBlock({ type: "EC PRIVATE KEY", bytes: EC.packSec1(jwk) });
} else if ('pkcs8' === format) {
return PEM.packBlock({ type: "EC PRIVATE KEY", bytes: EC.packPkcs8(jwk) });
} else if (-1 !== [ 'spki', 'pkix' ].indexOf(format)) {
return PEM.packBlock({ type: "PUBLIC KEY", bytes: EC.packSpki(jwk) });
} else if (-1 !== [ 'ssh', 'rfc4716' ].indexOf(format)) {
return EC.packSsh(jwk);
} else {
throw new Error("Sanity Error: reached unreachable code block with format: " + format);
return PEM.packBlock({ type: "PUBLIC KEY", bytes: EC.packSpki(jwk) });
}
});
};
@ -393,27 +378,6 @@ EC.packSpki = function (jwk) {
);
};
EC.packPkix = EC.packSpki;
EC.packSsh = function (jwk) {
// Custom SSH format
var typ = 'ecdsa-sha2-nistp256';
var a = '32 35 36';
var b = '41';
var comment = jwk.crv + '@localhost';
if ('P-256' !== jwk.crv) {
typ = 'ecdsa-sha2-nistp384';
a = '33 38 34';
b = '61';
}
var x = toHex(base64ToUint8(urlBase64ToBase64(jwk.x)));
var y = toHex(base64ToUint8(urlBase64ToBase64(jwk.y)));
var ssh = Hex.toUint8(
('00 00 00 13 65 63 64 73 61 2d 73 68 61 32 2d 6e 69 73 74 70'
+ a + '00 00 00 08 6e 69 73 74 70' + a + '00 00 00' + b
+ '04' + x + y).replace(/\s+/g, '').toLowerCase()
);
return typ + ' ' + toBase64(ssh) + ' ' + comment;
};
//
// A dumbed-down, minimal ASN.1 packer

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@ -1,6 +1,6 @@
{
"name": "eckles",
"version": "1.1.0",
"version": "1.0.1",
"description": "PEM-to-JWK and JWK-to-PEM for ECDSA keys in a lightweight, zero-dependency library focused on perfect universal compatibility.",
"homepage": "https://git.coolaj86.com/coolaj86/eckles.js",
"main": "index.js",

10
test.sh
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@ -29,15 +29,10 @@ echo "Testing JWK-to-PEM P-256"
echo ""
node bin/eckles.js fixtures/privkey-ec-p256.jwk.json sec1 | tee fixtures/privkey-ec-p256.sec1.pem.2
diff fixtures/privkey-ec-p256.sec1.pem fixtures/privkey-ec-p256.sec1.pem.2
#
node bin/eckles.js fixtures/privkey-ec-p256.jwk.json pkcs8 | tee fixtures/privkey-ec-p256.pkcs8.pem.2
diff fixtures/privkey-ec-p256.pkcs8.pem fixtures/privkey-ec-p256.pkcs8.pem.2
#
node bin/eckles.js fixtures/pub-ec-p256.jwk.json spki | tee fixtures/pub-ec-p256.spki.pem.2
diff fixtures/pub-ec-p256.spki.pem fixtures/pub-ec-p256.spki.pem.2
# ssh-keygen -f fixtures/pub-ec-p256.spki.pem -i -mPKCS8 > fixtures/pub-ec-p256.ssh.pub
node bin/eckles.js fixtures/pub-ec-p256.jwk.json ssh | tee fixtures/pub-ec-p256.ssh.pub.2
diff fixtures/pub-ec-p256.ssh.pub fixtures/pub-ec-p256.ssh.pub.2
echo ""
echo ""
@ -45,15 +40,10 @@ echo "Testing JWK-to-PEM P-384"
echo ""
node bin/eckles.js fixtures/privkey-ec-p384.jwk.json sec1 | tee fixtures/privkey-ec-p384.sec1.pem.2
diff fixtures/privkey-ec-p384.sec1.pem fixtures/privkey-ec-p384.sec1.pem.2
#
node bin/eckles.js fixtures/privkey-ec-p384.jwk.json pkcs8 | tee fixtures/privkey-ec-p384.pkcs8.pem.2
diff fixtures/privkey-ec-p384.pkcs8.pem fixtures/privkey-ec-p384.pkcs8.pem.2
#
node bin/eckles.js fixtures/pub-ec-p384.jwk.json spki | tee fixtures/pub-ec-p384.spki.pem.2
diff fixtures/pub-ec-p384.spki.pem fixtures/pub-ec-p384.spki.pem.2
# ssh-keygen -f fixtures/pub-ec-p384.spki.pem -i -mPKCS8 > fixtures/pub-ec-p384.ssh.pub
node bin/eckles.js fixtures/pub-ec-p384.jwk.json ssh | tee fixtures/pub-ec-p384.ssh.pub.2
diff fixtures/pub-ec-p384.ssh.pub fixtures/pub-ec-p384.ssh.pub.2
rm fixtures/*.2