1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
import { describe, expect, it, beforeAll } from "bun:test";
type Ed25519KeyPair = {
privateKey: CryptoKey;
publicKey: CryptoKey;
};
describe("Web Crypto", () => {
it("has globals", () => {
expect(crypto.subtle !== undefined).toBe(true);
expect(CryptoKey.name).toBe("CryptoKey");
expect(SubtleCrypto.name).toBe("SubtleCrypto");
});
it("should encrypt and decrypt", async () => {
const key = await crypto.subtle.generateKey(
{
name: "AES-GCM",
length: 256,
},
true,
["encrypt", "decrypt"],
);
const iv = crypto.getRandomValues(new Uint8Array(12));
const data = new TextEncoder().encode("Hello World!");
const encrypted = await crypto.subtle.encrypt(
{
name: "AES-GCM",
iv,
},
key,
data,
);
const decrypted = await crypto.subtle.decrypt(
{
name: "AES-GCM",
iv,
},
key,
encrypted,
);
expect(new TextDecoder().decode(decrypted)).toBe("Hello World!");
});
it("should verify and sign", async () => {
async function importKey(secret) {
return await crypto.subtle.importKey(
"raw",
new TextEncoder().encode(secret),
{ name: "HMAC", hash: "SHA-256" },
false,
["sign", "verify"],
);
}
async function signResponse(message, secret) {
const key = await importKey(secret);
const signature = await crypto.subtle.sign("HMAC", key, new TextEncoder().encode(message));
// Convert ArrayBuffer to Base64
return btoa(String.fromCharCode(...new Uint8Array(signature)));
}
async function verifySignature(message, signature, secret) {
const key = await importKey(secret);
// Convert Base64 to Uint8Array
const sigBuf = Uint8Array.from(atob(signature), c => c.charCodeAt(0));
return await crypto.subtle.verify("HMAC", key, sigBuf, new TextEncoder().encode(message));
}
const msg = `hello world`;
const SECRET = "secret";
const signature = await signResponse(msg, SECRET);
const isSigValid = await verifySignature(msg, signature, SECRET);
expect(isSigValid).toBe(true);
});
describe("Ed25519", () => {
let importedKeypair: Ed25519KeyPair;
describe("generateKey", () => {
it("should generate key pair", async () => {
const keyPair = (await crypto.subtle.generateKey("Ed25519", true, ["sign", "verify"])) as Ed25519KeyPair;
expect(keyPair.privateKey).toBeDefined();
expect(keyPair.privateKey instanceof CryptoKey).toBe(true);
expect(keyPair.publicKey).toBeDefined();
expect(keyPair.publicKey instanceof CryptoKey).toBe(true);
});
it("should generate an extractable key pair", async () => {
const keyPair = (await crypto.subtle.generateKey("Ed25519", true, ["sign", "verify"])) as Ed25519KeyPair;
const privateKey = await crypto.subtle.exportKey("jwk", keyPair.privateKey);
const publicKey = await crypto.subtle.exportKey("jwk", keyPair.publicKey);
expect(privateKey).toBeDefined();
expect(privateKey.d).toBeDefined();
expect(privateKey.x).toBeDefined();
expect(privateKey.x!.length).toBe(43);
expect(privateKey.d!.length).toBe(43);
expect(privateKey.kty).toEqual("OKP");
expect(privateKey.crv).toEqual("Ed25519");
expect(privateKey.ext).toBe(true);
expect(privateKey.key_ops).toStrictEqual(["sign"]);
expect(publicKey).toBeDefined();
expect(publicKey.x).toBeDefined();
expect(publicKey.x!.length).toBe(43);
expect(publicKey.kty).toEqual("OKP");
expect(publicKey.crv).toEqual("Ed25519");
expect(publicKey.ext).toBe(true);
expect(publicKey.key_ops).toStrictEqual(["verify"]);
});
it("should generate an nonextractable private key", async done => {
const keyPair = (await crypto.subtle.generateKey("Ed25519", false, ["sign", "verify"])) as Ed25519KeyPair;
expect(keyPair.privateKey).toBeDefined();
expect(keyPair.publicKey).toBeDefined();
try {
await crypto.subtle.exportKey("jwk", keyPair.privateKey);
done(new Error("Should not be able to export private key"));
} catch (e) {
if (!(e instanceof Error)) {
process.exit(1);
} else {
expect(e.message).toBe("The CryptoKey is nonextractable");
done();
}
}
});
it("should generate keys with correct usages", async () => {
const keyPair1 = (await crypto.subtle.generateKey("Ed25519", false, ["sign"])) as Ed25519KeyPair;
const keyPair2 = (await crypto.subtle.generateKey("Ed25519", false, ["sign", "verify"])) as Ed25519KeyPair;
expect(keyPair1.privateKey?.usages).toBeDefined();
expect(keyPair1.publicKey?.usages).toBeDefined();
expect(keyPair1.privateKey?.usages).toStrictEqual(["sign"]);
expect(keyPair1.publicKey?.usages).toStrictEqual([]);
expect(keyPair2.privateKey?.usages).toBeDefined();
expect(keyPair2.publicKey?.usages).toBeDefined();
expect(keyPair2.privateKey?.usages).toEqual(["sign"]);
expect(keyPair2.publicKey?.usages).toEqual(["verify"]);
});
});
describe("importKey", () => {
it("should do raw import", async () => {
const privateKey = "whvdISVptebNycNBnzsGltGsSWhThuD-mP2tcsBbNt8";
const buf = Buffer.from(privateKey, "base64url");
console.log(buf);
const imported = await crypto.subtle.importKey("raw", buf, "Ed25519", false, ["sign", "verify"]);
});
it("should do JWK import", async () => {
const kp = await crypto.subtle.importKey(
"jwk",
{
kty: "OKP",
d: "whvdISVptebNycNBnzsGltGsSWhThuD-mP2tcsBbNt8",
use: "sig",
crv: "Ed25519",
// kid: "sig-1675587884",
x: "jZJN1eHyhwujYgS9btOxrSGJuVrWVmJMmkovz6vmmJQ",
alg: "EdDSA",
ext: true,
},
"Ed25519",
true,
["sign"],
);
});
it("should do PKCS8 import", () => {});
});
});
});
|
