46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
/* global encodePrivateKey, encodePublicKey */
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const extractable = true;
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function wrap(text, len) {
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const length = len || 72;
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let result = "";
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for (let i = 0; i < text.length; i += length) {
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result += text.slice(i, i + length);
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result += "\n";
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}
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return result;
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}
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function rsaPrivateKey(key) {
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return `-----BEGIN RSA PRIVATE KEY-----\n${key}-----END RSA PRIVATE KEY-----`;
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}
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function arrayBufferToBase64(buffer) {
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let binary = "";
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const bytes = new Uint8Array(buffer);
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const len = bytes.byteLength;
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for (let i = 0; i < len; i += 1) {
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binary += String.fromCharCode(bytes[i]);
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}
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return window.btoa(binary);
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}
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function generateKeyPair(alg, size, name) {
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return window.crypto.subtle.generateKey(
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{
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name: "RSASSA-PKCS1-v1_5",
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modulusLength: 2048, // can be 1024, 2048, or 4096
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publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
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hash: { name: "SHA-1" }, // can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
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},
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extractable,
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["sign", "verify"]
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).then(key => {
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const privateKey = window.crypto.subtle.exportKey("jwk", key.privateKey).then(encodePrivateKey).then(wrap).then(rsaPrivateKey);
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const publicKey = window.crypto.subtle.exportKey("jwk", key.publicKey).then(jwk => encodePublicKey(jwk, name));
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return Promise.all([privateKey, publicKey]);
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});
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}
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// module.exports = { arrayBufferToBase64, generateKeyPair };
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