90 lines
2.0 KiB
Markdown
90 lines
2.0 KiB
Markdown
eckles.js
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=========
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ECDSA (elliptic curve) tools. Lightweight. Zero Dependencies. Universal compatibility.
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* [x] PEM-to-JWK
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* [x] JWK-to-PEM
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## PEM-to-JWK
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* [x] SEC1/X9.62, PKCS#8, SPKI/PKIX
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* [x] P-256 (prime256v1, secp256r1), P-384 (secp384r1)
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```js
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var eckles = require('eckles');
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var pem = require('fs').readFileSync('eckles/fixtures/privkey-ec-p256.sec1.pem', 'ascii');
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eckles.import({ pem: pem }).then(function (jwk) {
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console.log(jwk);
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});
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```
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```js
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{
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"kty": "EC",
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"crv": "P-256",
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"d": "iYydo27aNGO9DBUWeGEPD8oNi1LZDqfxPmQlieLBjVQ",
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"x": "IT1SWLxsacPiE5Z16jkopAn8_-85rMjgyCokrnjDft4",
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"y": "mP2JwOAOdMmXuwpxbKng3KZz27mz-nKWIlXJ3rzSGMo"
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}
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```
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## JWK-to-PEM
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* [x] SEC1/X9.62, PKCS#8, SPKI/PKIX
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* [x] P-256 (prime256v1, secp256r1), P-384 (secp384r1)
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```js
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var eckles = require('eckles');
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var jwk = require('eckles/fixtures/privkey-ec-p256.jwk.json');
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eckles.export({ jwk: jwk }).then(function (pem) {
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// PEM in SEC1 (x9.62) format
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console.log(pem);
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});
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```
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```
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-----BEGIN EC PRIVATE KEY-----
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MHcCAQEEIImMnaNu2jRjvQwVFnhhDw/KDYtS2Q6n8T5kJYniwY1UoAoGCCqGSM49
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AwEHoUQDQgAEIT1SWLxsacPiE5Z16jkopAn8/+85rMjgyCokrnjDft6Y/YnA4A50
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yZe7CnFsqeDcpnPbubP6cpYiVcnevNIYyg==
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-----END EC PRIVATE KEY-----
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```
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#### Advanced
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`format: 'pkcs8'`:
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The default output format is `sec1`/`x9.62` (EC-specific format) is used for private keys.
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Use `format: 'pkcs8'` to output in PKCS#8 format instead.
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```js
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eckles.export({ jwk: jwk, format: 'pkcs8' }).then(function (pem) {
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// PEM in PKCS#8 format
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console.log(pem);
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});
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```
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`public: 'true'`:
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If a private key is used as input, a private key will be output.
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If you'd like to output a public key instead you can pass `public: true` or `format: 'spki'`.
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```js
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eckles.export({ jwk: jwk, public: true }).then(function (pem) {
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// PEM in SPKI/PKIX format
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console.log(pem);
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});
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```
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Goals
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-----
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* Zero Dependencies
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* Focused support for P-256 and P-384, which are already universally supported.
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* Convert both ways
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* Browser support as well
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