코드 이식

2023-09-22 20:46:23 +09:00
parent 0f9d5c2dc9
commit b8d57a014a
41 changed files with 4202 additions and 7 deletions
@@ -0,0 +1,48 @@
+const subtle = globalThis.crypto.subtle;
+
+export type ValidEncAlg = 'AES256-GCM' | 'AES128-GCM' | 'AES256-CBC' | 'AES128-CBC';
+
+const encAlgMap: Record<ValidEncAlg, AesDerivedKeyParams> = {
+	'AES256-GCM': {
+		name: 'AES-GCM',
+		length: 256,
+	},
+	'AES128-GCM' : {
+		name: 'AES-GCM',
+		length: 128,
+	},
+	'AES256-CBC' : {
+		name: 'AES-CBC',
+		length: 256,
+	},
+	'AES128-CBC' : {
+		name: 'AES-CBC',
+		length: 128,
+	},
+}
+
+export async function PBKDF2_SHA512(password: string, salt: BufferSource, alg: ValidEncAlg = 'AES256-GCM', iterations = 600000): Promise<CryptoKey> {
+	const param: Pbkdf2Params = {
+		name: 'PBKDF2',
+		hash: 'SHA-512',
+		salt: salt,
+		iterations,
+	};
+
+	const encoder = new TextEncoder();
+	const baseKey = await subtle.importKey(
+		"raw",
+		encoder.encode(password),
+		{ name: "PBKDF2" },
+		false,
+		["deriveBits", "deriveKey"]
+	);
+
+	return await subtle.deriveKey(
+		param,
+		baseKey, 
+		encAlgMap[alg],
+		true,
+		["encrypt", "decrypt"]
+	);
+}