HarmonyOS鸿蒙Next中加解密问题

HarmonyOS鸿蒙Next中加解密问题

import cryptoFramework from ‘@ohos.security.cryptoFramework’; import buffer from ‘@ohos.buffer’;

export class Secure { static TAG: string = “Secure”;

static async aes(sSrc: Uint8Array, sKey: string, iv: string, isEncrypt: boolean): Promise<Uint8Array> { let transformation: string = “AES|CBC|PKCS5”; try { let cipher = cryptoFramework.createCipher(transformation);

  let opMode: cryptoFramework.CryptoMode =
    isEncrypt ? cryptoFramework.CryptoMode.ENCRYPT_MODE : cryptoFramework.CryptoMode.DECRYPT_MODE
  let key: cryptoFramework.Key = await Secure.getKey(sKey);
  let params: cryptoFramework.IvParamsSpec = Secure.getIV(iv);

  await cipher.init(opMode, key, params).then(
  ).catch(
    (e: Error) => {
    })

  let data: cryptoFramework.DataBlob = { data: sSrc }

  let rDataUint8Array: Uint8Array = new Uint8Array();
  await cipher.doFinal(data).then(
    (d: cryptoFramework.DataBlob) => {
      rDataUint8Array = d.data
    }).catch(
      (e: Error) => {
      })
  return rDataUint8Array;

} catch (error) {
}
return new Uint8Array();

}

private static async getKey(sKey: string) { let key: cryptoFramework.Key = {} as cryptoFramework.Key; let symKeyGenerator: cryptoFramework.SymKeyGenerator = cryptoFramework.createSymKeyGenerator(“AES128”); let pkVal = new Uint8Array(buffer.from(sKey, “utf8”).buffer); let pkBlob: cryptoFramework.DataBlob = { data: pkVal }; await symKeyGenerator.convertKey(pkBlob).then( (symKey: cryptoFramework.SymKey) => { key = symKey; }).catch( (e: Error) => { }); return key; }

private static getIV(iv: string) { let ivVal = new Uint8Array(buffer.from(iv, “utf8”).buffer); let ivBlob: cryptoFramework.DataBlob = { data: ivVal }; let params: cryptoFramework.IvParamsSpec = { algName: “AES128”, iv: ivBlob }; return params; }

static async test() { let sSrcString: string = “abcd” let sSrc: Uint8Array = new Uint8Array(buffer.from(sSrcString, “utf8”).buffer); let sKey: string = “i0pd03ph0506aPl!” let iv: string = “i0pd03p40506aPl!” let isEncrypt: boolean = true; let eB: Uint8Array = await Secure.aes(sSrc, sKey, iv, isEncrypt); // let s = Secure.aes(eB, sKey, iv, false); } }

运行 test() 方法，出 createCipher error:, {error.name:Error, error.message:build context for init fail!} ,json:{“code”:401}