53 lines
1.8 KiB
JavaScript
53 lines
1.8 KiB
JavaScript
"use strict";
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const {test} = require("node:test");
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const assert = require("node:assert");
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const Zga = require("../lib/zganode.js");
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const {makeKeyCert} = require("../testutil/fixtures.js");
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const forge = Zga.forge;
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// Crypto-agility seam (Update 4): a Signer abstraction decouples the signature
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// algorithm from the PDF/PKCS#7 assembly. RsaSigner captures the current
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// RSA + SHA-256 behavior behind that interface.
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test("RsaSigner.sign produces a SHA-256 RSA signature that verifies against the certificate public key", () => {
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const {privateKey, certificate} = makeKeyCert(3072);
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const signer = new Zga.RsaSigner(privateKey, certificate);
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const data = "hello zgapdfsigner";
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const signature = signer.sign(data);
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const md = forge.md.sha256.create();
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md.update(data);
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assert.strictEqual(certificate.publicKey.verify(md.digest().bytes(), signature), true);
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});
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test("RsaSigner reports SHA-256 as its digest algorithm OID", () => {
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const {privateKey, certificate} = makeKeyCert(3072);
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const signer = new Zga.RsaSigner(privateKey, certificate);
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assert.strictEqual(signer.getDigestAlgorithmOid(), forge.pki.oids.sha256);
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});
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test("RsaSigner reports sha256WithRSAEncryption as its signature algorithm OID", () => {
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const {privateKey, certificate} = makeKeyCert(3072);
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const signer = new Zga.RsaSigner(privateKey, certificate);
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assert.strictEqual(signer.getSignatureAlgorithmOid(), forge.pki.oids.sha256WithRSAEncryption);
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});
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test("createSigner returns an RsaSigner for an RSA key", () => {
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const {privateKey, certificate} = makeKeyCert(3072);
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const signer = Zga.createSigner(privateKey, certificate);
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assert.ok(signer instanceof Zga.RsaSigner);
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});
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test("createSigner rejects an unsupported (non-RSA) key type", () => {
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assert.throws(
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() => Zga.createSigner({}, null),
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/only RSA keys are supported/,
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);
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});
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