1/* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import { cryptoFramework } from '@kit.CryptoArchitectureKit'; 17import { buffer } from '@kit.ArkTS'; 18 19// 加密消息 20function encryptMessage(publicKey: cryptoFramework.PubKey, plainText: cryptoFramework.DataBlob) { 21 let cipher = cryptoFramework.createCipher('SM2_256|SM3'); 22 cipher.initSync(cryptoFramework.CryptoMode.ENCRYPT_MODE, publicKey, null); 23 let encryptData = cipher.doFinalSync(plainText); 24 return encryptData; 25} 26 27// 解密消息 28function decryptMessage(privateKey: cryptoFramework.PriKey, cipherText: cryptoFramework.DataBlob) { 29 let decoder = cryptoFramework.createCipher('SM2_256|SM3'); 30 decoder.initSync(cryptoFramework.CryptoMode.DECRYPT_MODE, privateKey, null); 31 let decryptData = decoder.doFinalSync(cipherText); 32 return decryptData; 33} 34 35// 生成SM2密钥对 36function genKeyPairByData(pubKeyData: Uint8Array, priKeyData: Uint8Array) { 37 let pubKeyBlob: cryptoFramework.DataBlob = { data: pubKeyData }; 38 let priKeyBlob: cryptoFramework.DataBlob = { data: priKeyData }; 39 let sm2Generator = cryptoFramework.createAsyKeyGenerator('SM2_256'); 40 let keyPair = sm2Generator.convertKeySync(pubKeyBlob, priKeyBlob); 41 console.info('convertKeySync success'); 42 return keyPair; 43} 44 45function main() { 46 let pkData = 47 new Uint8Array([48, 89, 48, 19, 6, 7, 42, 134, 72, 206, 61, 2, 1, 6, 8, 42, 129, 28, 207, 85, 1, 130, 45, 3, 66, 0, 48 4, 90, 3, 58, 157, 190, 248, 76, 7, 132, 200, 151, 208, 112, 230, 96, 140, 90, 238, 211, 155, 128, 109, 248, 40, 49 83, 214, 78, 42, 104, 106, 55, 148, 249, 35, 61, 32, 221, 135, 143, 100, 45, 97, 194, 176, 52, 73, 136, 174, 40, 50 70, 70, 34, 103, 103, 161, 99, 27, 187, 13, 187, 109, 244, 13, 7]); 51 let skData = 52 new Uint8Array([48, 49, 2, 1, 1, 4, 32, 54, 41, 239, 240, 63, 188, 134, 113, 31, 102, 149, 203, 245, 89, 15, 15, 47, 53 202, 170, 60, 38, 154, 28, 169, 189, 100, 251, 76, 112, 223, 156, 159, 160, 10, 6, 8, 42, 129, 28, 207, 85, 1, 54 130, 45]); 55 let keyPair = genKeyPairByData(pkData, skData); 56 let pubKey = keyPair.pubKey; 57 let priKey = keyPair.priKey; 58 let message = 'This is a test'; 59 // 把字符串按utf-8解码为Uint8Array 60 let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(buffer.from(message, 'utf-8').buffer) }; 61 let encryptText = encryptMessage(pubKey, plainText); 62 let decryptText = decryptMessage(priKey, encryptText); 63 if (plainText.data.toString() === decryptText.data.toString()) { 64 console.info('decrypt ok'); 65 // 把Uint8Array按utf-8编码为字符串 66 let messageDecrypted = buffer.from(decryptText.data).toString('utf-8'); 67 console.info('decrypted result string:' + messageDecrypted); 68 } else { 69 console.error('decrypt failed'); 70 } 71} 72 73@Entry 74@Component 75struct Index { 76 @State message: string = 'SM2 Sync'; 77 78 build() { 79 Column({ space: 12 }) { 80 Text(this.message).fontSize(20).fontWeight(FontWeight.Bold) 81 Button($r('app.string.call_sm2_sync')) 82 .width('70%') 83 .onClick(() => { 84 try { 85 main(); 86 this.message = 'SM2 Sync Success'; 87 } catch { 88 this.message = 'SM2 Sync Fail'; 89 } 90 }) 91 } 92 .height('100%') 93 .width('100%') 94 } 95}