kisa-seed
v1.0.1
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Typescript implementation of the KISA SEED encryption and decryption
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kisa-seed
Typescript implementation of the KISA SEED encryption and decryption
This is a typescript conversion of the Java class mentioned in the above website.
Since it is almost a direct translation, it will not follow typescript standards and best practices.
Usage
You can use it in the following way.
import { KISA_SEED_CBC } from "../src";
const enc = KISA_SEED_CBC.encrypt(
"gONPjwgQcPHp85Q3CtQFiQ==",
"II1mpzCoGoFvutn6NhAlAQ==",
"Hello World"
);
const dec = KISA_SEED_CBC.decrypt(
"gONPjwgQcPHp85Q3CtQFiQ==",
"II1mpzCoGoFvutn6NhAlAQ==",
enc
);
console.log(dec);
You can also access an inner method if you want to directly encrypt/decrypt a Uint8Array
import { KISA_SEED_CBC } from "../src";
function stringToUint8Array(str: string): Uint8Array {
const encoder = new TextEncoder(); // TextEncoder encodes into UTF-8 by default
const uint8Array = encoder.encode(str);
return uint8Array;
}
function uint8ArrayToString(uint8Array: Uint8Array): string {
const decoder = new TextDecoder("utf-8");
return decoder.decode(uint8Array);
}
function base64ToUint8Array(base64: string): Uint8Array {
return new Uint8Array(Buffer.from(base64, "base64"));
}
const pbUserKey = base64ToUint8Array("gONPjwgQcPHp85Q3CtQFiQ==");
const bszIV = base64ToUint8Array("II1mpzCoGoFvutn6NhAlAQ==");
const encStr = stringToUint8Array("Hello World");
const enc = KISA_SEED_CBC.SEED_CBC_Encrypt(
pbUserKey,
bszIV,
encStr,
0,
encStr.length
);
const dec = KISA_SEED_CBC.SEED_CBC_Decrypt(
pbUserKey,
bszIV,
enc,
0,
enc.length
);
console.log(uint8ArrayToString(dec));