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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
// Copyright Joyent, Inc. and Node.js contributors. All rights reserved. MIT license.
import { notImplemented } from "ext:deno_node/_utils.ts";
import { validateString } from "ext:deno_node/internal/validators.mjs";
import { Buffer } from "ext:deno_node/buffer.ts";
import type { WritableOptions } from "ext:deno_node/_stream.d.ts";
import Writable from "ext:deno_node/internal/streams/writable.mjs";
import type {
BinaryLike,
BinaryToTextEncoding,
Encoding,
PrivateKeyInput,
PublicKeyInput,
} from "ext:deno_node/internal/crypto/types.ts";
import { KeyObject } from "ext:deno_node/internal/crypto/keys.ts";
import { createHash, Hash } from "ext:deno_node/internal/crypto/hash.ts";
import { KeyFormat, KeyType } from "ext:deno_node/internal/crypto/types.ts";
import { isArrayBufferView } from "ext:deno_node/internal/util/types.ts";
const { core } = globalThis.__bootstrap;
const { ops } = core;
export type DSAEncoding = "der" | "ieee-p1363";
export interface SigningOptions {
padding?: number | undefined;
saltLength?: number | undefined;
dsaEncoding?: DSAEncoding | undefined;
}
export interface SignPrivateKeyInput extends PrivateKeyInput, SigningOptions {}
export interface SignKeyObjectInput extends SigningOptions {
key: KeyObject;
}
export interface VerifyPublicKeyInput extends PublicKeyInput, SigningOptions {}
export interface VerifyKeyObjectInput extends SigningOptions {
key: KeyObject;
}
export type KeyLike = string | Buffer | KeyObject;
export class Sign extends Writable {
hash: Hash;
#digestType: string;
constructor(algorithm: string, _options?: WritableOptions) {
validateString(algorithm, "algorithm");
super({
write(chunk, enc, callback) {
this.update(chunk, enc);
callback();
},
});
algorithm = algorithm.toLowerCase();
if (algorithm.startsWith("rsa-")) {
// Allows RSA-[digest_algorithm] as a valid algorithm
algorithm = algorithm.slice(4);
}
this.#digestType = algorithm;
this.hash = createHash(this.#digestType);
}
sign(
privateKey: KeyLike | SignKeyObjectInput | SignPrivateKeyInput,
encoding?: BinaryToTextEncoding,
): Buffer | string {
let keyData: Uint8Array;
let keyType: KeyType;
let keyFormat: KeyFormat;
if (typeof privateKey === "string" || isArrayBufferView(privateKey)) {
// if the key is BinaryLike, interpret it as a PEM encoded RSA key
keyData = privateKey;
keyType = "rsa";
keyFormat = "pem";
} else {
// TODO(kt3k): Add support for the case when privateKey is a KeyObject,
// CryptoKey, etc
notImplemented("crypto.Sign.prototype.sign with non BinaryLike input");
}
const ret = Buffer.from(ops.op_node_sign(
this.hash.digest(),
this.#digestType,
keyData!,
keyType,
keyFormat,
));
return encoding ? ret.toString(encoding) : ret;
}
update(
data: BinaryLike | string,
encoding?: Encoding,
): this {
this.hash.update(data, encoding);
return this;
}
}
export class Verify extends Writable {
constructor(algorithm: string, _options?: WritableOptions) {
validateString(algorithm, "algorithm");
super();
notImplemented("crypto.Verify");
}
update(data: BinaryLike): this;
update(data: string, inputEncoding: Encoding): this;
update(_data: BinaryLike, _inputEncoding?: string): this {
notImplemented("crypto.Sign.prototype.update");
}
verify(
object: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput,
signature: ArrayBufferView,
): boolean;
verify(
object: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput,
signature: string,
signatureEncoding?: BinaryToTextEncoding,
): boolean;
verify(
_object: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput,
_signature: ArrayBufferView | string,
_signatureEncoding?: BinaryToTextEncoding,
): boolean {
notImplemented("crypto.Sign.prototype.sign");
}
}
export function signOneShot(
algorithm: string | null | undefined,
data: ArrayBufferView,
key: KeyLike | SignKeyObjectInput | SignPrivateKeyInput,
): Buffer;
export function signOneShot(
algorithm: string | null | undefined,
data: ArrayBufferView,
key: KeyLike | SignKeyObjectInput | SignPrivateKeyInput,
callback: (error: Error | null, data: Buffer) => void,
): void;
export function signOneShot(
_algorithm: string | null | undefined,
_data: ArrayBufferView,
_key: KeyLike | SignKeyObjectInput | SignPrivateKeyInput,
_callback?: (error: Error | null, data: Buffer) => void,
): Buffer | void {
notImplemented("crypto.sign");
}
export function verifyOneShot(
algorithm: string | null | undefined,
data: ArrayBufferView,
key: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput,
signature: ArrayBufferView,
): boolean;
export function verifyOneShot(
algorithm: string | null | undefined,
data: ArrayBufferView,
key: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput,
signature: ArrayBufferView,
callback: (error: Error | null, result: boolean) => void,
): void;
export function verifyOneShot(
_algorithm: string | null | undefined,
_data: ArrayBufferView,
_key: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput,
_signature: ArrayBufferView,
_callback?: (error: Error | null, result: boolean) => void,
): boolean | void {
notImplemented("crypto.verify");
}
export default {
signOneShot,
verifyOneShot,
Sign,
Verify,
};
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