RSA NoPadding模式加密失败

RSA使用PKCS1模式可以正常加解密，使用NoPadding模式调用cipher.doFinal(plainText)加密数据抛出异常，无法正常使用。下面是示例代码：可在IDE中直接运行

import { cryptoFramework } from '@kit.CryptoArchitectureKit';
import { buffer } from '@kit.ArkTS';

export class RSA {
  static async testPKCS1() {
    let rsaGenerator = cryptoFramework.createAsyKeyGenerator('RSA1024');
    // 使用密钥生成器随机生成非对称密钥对
    let keypair = await rsaGenerator.generateKeyPair();
    let pubkey = keypair.pubKey
    let prikey = keypair.priKey
    let message = "hello world"
    let plainText: cryptoFramework.DataBlob = {data: new Uint8Array(buffer.from(message, "utf-8").buffer)}
    //加密
    let cipher = cryptoFramework.createCipher('RSA1024|PKCS1');
    await cipher.init(cryptoFramework.CryptoMode.ENCRYPT_MODE, pubkey, null);
    let encryptData = await cipher.doFinal(plainText);
    //解密
    let decoder = cryptoFramework.createCipher('RSA1024|PKCS1');
    await decoder.init(cryptoFramework.CryptoMode.DECRYPT_MODE, prikey, null);
    let decryptData = await decoder.doFinal(encryptData);
    let messageDecrypted = buffer.from(decryptData.data).toString("utf-8")
    return messageDecrypted
    console.log(messageDecrypted)
  }
  static async testNoPadding() {
    let rsaGenerator = cryptoFramework.createAsyKeyGenerator('RSA1024');
    // 使用密钥生成器随机生成非对称密钥对
    let keypair = await rsaGenerator.generateKeyPair();
    let pubkey = keypair.pubKey
    let prikey = keypair.priKey
    let message = "hello world"
    let plainText: cryptoFramework.DataBlob = {data: new Uint8Array(buffer.from(message, "utf-8").buffer)}
    //加密
    let cipher = cryptoFramework.createCipher('RSA1024|NoPadding');
    await cipher.init(cryptoFramework.CryptoMode.ENCRYPT_MODE, pubkey, null);
    let encryptData = await cipher.doFinal(plainText);
    //解密
    let decoder = cryptoFramework.createCipher('RSA1024|NoPadding');
    await decoder.init(cryptoFramework.CryptoMode.DECRYPT_MODE, prikey, null);
    let decryptData = await decoder.doFinal(encryptData);
    let messageDecrypted = buffer.from(decryptData.data).toString("utf-8")
    return messageDecrypted
    console.log(messageDecrypted)
  }
}

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HarmonyOS NEXT

Virgint

2024-05-15 16:32:20

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