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test.ts
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test.ts
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import { assertEquals, encode } from "./test_deps.ts";
import {
seal,
open
} from "./mod.ts";
interface TestVector {
key: Uint8Array;
nonce: Uint8Array;
plaintext: Uint8Array;
aad: Uint8Array;
ciphertext: Uint8Array;
tag: Uint8Array;
}
function loadTestVectors(): TestVector[] {
return JSON.parse(
new TextDecoder().decode(Deno.readFileSync("./test_vectors.json"))
).map(
(testVector: { [key: string]: string; }): TestVector => ({
key: encode(testVector.key, "hex"),
nonce: encode(testVector.nonce, "hex"),
plaintext: encode(testVector.plaintext, "hex"),
aad: encode(testVector.aad, "hex"),
ciphertext: encode(testVector.ciphertext, "hex"),
tag: encode(testVector.tag, "hex")
})
);
}
// See https://tools.ietf.org/html/rfc8439
const testVectors: TestVector[] = loadTestVectors();
testVectors.forEach(
(
{ key, nonce, plaintext, aad, ciphertext, tag }: TestVector,
i: number
): void => {
Deno.test({
name: `seal [${i}]`,
fn(): void {
const actual: null | {
ciphertext: Uint8Array;
tag: Uint8Array;
aad: Uint8Array;
} = seal(key, nonce, plaintext, aad);
assertEquals(actual!.ciphertext, ciphertext);
assertEquals(actual!.tag, tag);
}
});
}
);
testVectors.forEach(
(
{ key, nonce, plaintext, aad, ciphertext, tag }: TestVector,
i: number
): void => {
Deno.test({
name: `open [${i}]`,
fn(): void {
assertEquals(
open(key, nonce, ciphertext, aad, tag),
plaintext
);
}
});
}
);
testVectors.forEach(
({ key, nonce, aad, ciphertext }: TestVector, i: number): void => {
Deno.test({
name: `chacha20poly1305 nulls if not authenticated [${i}]`,
fn(): void {
assertEquals(
open(key, nonce, ciphertext, aad, new Uint8Array(16)),
null
);
}
});
}
);
testVectors.forEach(
({ key, nonce, plaintext, aad }: TestVector, i: number): void => {
Deno.test({
name: `seal nulls if the key length is invalid [${i}]`,
fn(): void {
assertEquals(
seal(key.subarray(-9), nonce, plaintext, aad),
null
);
}
});
}
);
testVectors.forEach(
({ key, nonce, plaintext, aad }: TestVector, i: number): void => {
Deno.test({
name: `seal nulls if the nonce length is invalid [${i}]`,
fn(): void {
assertEquals(
seal(key, nonce.subarray(-9), plaintext, aad),
null
);
}
});
}
);
testVectors.forEach(
({ key, nonce, ciphertext, aad, tag }: TestVector, i: number): void => {
Deno.test({
name: `open nulls if the key length is invalid [${i}]`,
fn(): void {
assertEquals(
open(key.subarray(-9), nonce, ciphertext, aad, tag),
null
);
}
});
}
);
testVectors.forEach(
({ key, nonce, ciphertext, aad, tag }: TestVector, i: number): void => {
Deno.test({
name: `open nulls if the nonce length is invalid [${i}]`,
fn(): void {
assertEquals(
open(key, nonce.subarray(-9), ciphertext, aad, tag),
null
);
}
});
}
);