├── .gitignore ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── cn │ │ └── mtjsoft │ │ └── www │ │ └── myencryptiondemo │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── cn │ │ │ └── mtjsoft │ │ │ └── www │ │ │ └── myencryptiondemo │ │ │ ├── EncryptionActivity.kt │ │ │ └── MainActivity.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_encryption.xml │ │ └── activity_main.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── values-night │ │ └── themes.xml │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── themes.xml │ └── test │ └── java │ └── cn │ └── mtjsoft │ └── www │ └── myencryptiondemo │ └── ExampleUnitTest.kt ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── lib_encryption ├── .gitignore ├── build.gradle ├── consumer-rules.pro ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── cn │ │ └── mtjsoft │ │ └── lib_encryption │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ └── java │ │ └── cn │ │ └── mtjsoft │ │ └── lib_encryption │ │ ├── AES │ │ └── AESUtil.java │ │ ├── BASE64 │ │ └── Base64Util.java │ │ ├── MD5 │ │ └── MD5Util.java │ │ ├── RSA │ │ └── RSAUtil.java │ │ ├── SHA │ │ └── SHAUtil.java │ │ ├── SM2 │ │ ├── SM2.java │ │ ├── SM2Signer.java │ │ └── SM2Util.java │ │ ├── SM3 │ │ └── SM3Util.java │ │ ├── SM4 │ │ └── SM4Util.java │ │ └── utils │ │ └── Util.java │ └── test │ └── java │ ├── android │ └── text │ │ └── TextUtils.java │ └── cn │ └── mtjsoft │ └── lib_encryption │ └── ExampleUnitTest.java ├── publish-mavencentral.gradle └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | .DS_Store 5 | /build 6 | /captures 7 | .externalNativeBuild 8 | .cxx 9 | /.idea/ 10 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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-------------------------------------------------------------------------------- 1 | # lib_encryption 2 | 3 | Android端的AES、MD5、SHA、RSA、SM2、SM3、SM4加解密算法的封装使用 4 | 5 | ## 添加依赖 6 | ```kotlin 7 | allprojects { 8 | repositories { 9 | ... 10 | maven { url 'https://jitpack.io' } 11 | } 12 | } 13 | ``` 14 | 15 | ```kotlin 16 | dependencies { 17 | implementation 'com.github.mtjsoft:lib_encryption:1.4.0' 18 | } 19 | ``` 20 | 21 | ## 使用示例 22 | 23 | ```kotlin 24 | public class ExampleUnitTest { 25 | /** 26 | * AES对称加密 27 | */ 28 | public void aesTest() { 29 | byte[] key = AESUtil.generateKey(); 30 | System.out.println("key: " + Util.byte2HexStr(key)); 31 | String dataString = "我是测试aesTest明文"; 32 | System.out.println("明文:$dataString"); 33 | byte[] encrypt = AESUtil.encrypt(dataString.getBytes(), key); 34 | String encryptHexStr = Util.byte2HexStr(encrypt); 35 | System.out.println("AES加密: " + encryptHexStr); 36 | String decryptHexStr = new String(AESUtil.decrypt(encrypt, key)); 37 | System.out.println("AES解密: " + decryptHexStr); 38 | } 39 | /** 40 | * BASE64编码 41 | */ 42 | public void base64Test() { 43 | String dataString = "我是测试base64Test明文"; 44 | System.out.println("明文:$dataString"); 45 | String encode = Base64Util.encode(dataString.getBytes()); 46 | System.out.println("base64编码: " + encode); 47 | System.out.println("base64解码: " + new String(Base64Util.decode(encode))); 48 | } 49 | 50 | /** 51 | * MD5摘要 52 | */ 53 | public void md5Test() { 54 | String dataString = "我是测试md5Test明文"; 55 | System.out.println("明文:" + dataString); 56 | System.out.println("md5摘要: " + MD5Util.stringMD5(dataString)); 57 | } 58 | 59 | /** 60 | * SHA 61 | */ 62 | public void shaTest() { 63 | String dataString = "我是测试shaTest明文"; 64 | System.out.println("明文:" + dataString); 65 | System.out.println("sha1摘要: " + SHAUtil.stringSHA(dataString, SHAUtil.SHA1)); 66 | System.out.println("sha256摘要: " + SHAUtil.stringSHA(dataString, SHAUtil.SHA256)); 67 | } 68 | 69 | /** 70 | * RSA非对称加密 71 | */ 72 | public void rsaTest() throws Exception { 73 | String dataString = "我是测试rsaTest明文"; 74 | System.out.println("明文:" + dataString); 75 | KeyPair key = RSAUtil.generateRSAKeyPair(); 76 | // 获取公私钥 77 | PrivateKey privateKey = key.getPrivate(); 78 | PublicKey publicKey = key.getPublic(); 79 | byte[] encryptByPublicKey = RSAUtil.encryptByPublicKey(dataString.getBytes(), publicKey); 80 | System.out.println("公钥加密明文:" + Util.byte2HexStr(encryptByPublicKey)); 81 | System.out.println("私钥解密:" + new String(RSAUtil.decryptByPrivateKey(encryptByPublicKey, privateKey))); 82 | 83 | byte[] encryptByPrivateKey = RSAUtil.encryptByPrivateKey(dataString.getBytes(), privateKey); 84 | System.out.println("私钥加密明文:" + Util.byte2HexStr(encryptByPrivateKey)); 85 | System.out.println("公钥解密:" + new String(RSAUtil.decryptByPublicKeyKey(encryptByPrivateKey, publicKey))); 86 | 87 | byte[] signWithSHA256 = RSAUtil.signWithSHA256(dataString.getBytes(), privateKey); 88 | System.out.println("私钥对明文数据SHA256签名:" + Util.byte2HexStr(signWithSHA256)); 89 | byte[] signWithMD5 = RSAUtil.signWithMD5(dataString.getBytes(), privateKey); 90 | System.out.println("私钥对明文数据MD5签名:" + Util.byte2HexStr(signWithMD5)); 91 | 92 | boolean verifySignWithSHA256 = RSAUtil.verifySignWithSHA256(dataString.getBytes(), signWithSHA256, publicKey); 93 | System.out.println("公钥对SHA256签名验签:" + verifySignWithSHA256); 94 | boolean verifySignWithMD5 = RSAUtil.verifySignWithMD5(dataString.getBytes(), signWithMD5, publicKey); 95 | System.out.println("公钥对MD5签名验签:" + verifySignWithMD5); 96 | } 97 | 98 | /** 99 | * 国产SM2非对称加密 100 | */ 101 | @Test 102 | public void sm2Test() { 103 | String dataString = "我是测试sm2Test明文"; 104 | System.out.println("明文:" + dataString); 105 | 106 | // 获取随机的公私钥 107 | byte[][] key = SM2Util.generateKeyPair(); 108 | byte[] publicKey = key[0]; 109 | byte[] privateKey = key[1]; 110 | 111 | System.out.println("私钥:" + privateKey.length + " " + Util.byte2HexStr(privateKey)); 112 | System.out.println("公钥:" + Util.byte2HexStr(publicKey)); 113 | 114 | byte[] encryptByPublicKey = SM2Util.encrypt(publicKey, dataString.getBytes()); 115 | System.out.println("公钥加密明文:" + Util.byte2HexStr(encryptByPublicKey)); 116 | System.out.println("私钥解密:" + new String(SM2Util.decrypt(privateKey, encryptByPublicKey))); 117 | 118 | byte[] sign = SM2Util.sign(privateKey, encryptByPublicKey); 119 | System.out.println("签名:" + Util.byte2HexStr(sign)); 120 | boolean verifySign = SM2Util.verifySign(publicKey, encryptByPublicKey, sign); 121 | System.out.println("验签:" + verifySign); 122 | } 123 | 124 | /** 125 | * 国产SM3摘要 126 | */ 127 | public void sm3Test() { 128 | String dataString = "我是测试sm3Test明文"; 129 | System.out.println("明文:" + dataString); 130 | System.out.println("sm3摘要: " + SM3Util.encryptInner(dataString)); 131 | } 132 | 133 | /** 134 | * 国产SM4对称加密 135 | */ 136 | public void sm4Test() { 137 | String dataString = "我是测试sm4Test明文"; 138 | System.out.println("明文:" + dataString); 139 | 140 | byte[] key = SM4Util.createSM4Key(); 141 | System.out.println("密钥:" + Util.byte2HexStr(key)); 142 | 143 | byte[] encryptCBC = SM4Util.encrypt(dataString.getBytes(), key, SM4Util.SM4_CBC_PKCS5, new byte[16]); 144 | System.out.println("CBC加密:" + Util.byte2HexStr(encryptCBC)); 145 | System.out.println("CBC解密:" + new String(SM4Util.decrypt(encryptCBC, key, SM4Util.SM4_CBC_PKCS5, new byte[16]))); 146 | 147 | byte[] encryptECB = SM4Util.encrypt(dataString.getBytes(), key, SM4Util.SM4_ECB_PKCS5, null); 148 | System.out.println("ECB加密:" + Util.byte2HexStr(encryptECB)); 149 | System.out.println("ECB解密:" + new String(SM4Util.decrypt(encryptECB, key, SM4Util.SM4_ECB_PKCS5, null))); 150 | } 151 | } 152 | ``` 153 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | plugins { 2 | id 'com.android.application' 3 | id 'kotlin-android' 4 | } 5 | 6 | android { 7 | compileSdkVersion 30 8 | 9 | defaultConfig { 10 | applicationId "cn.mtjsoft.www.myencryptiondemo" 11 | minSdkVersion 19 12 | targetSdkVersion 30 13 | versionCode 1 14 | versionName "1.0" 15 | 16 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 17 | } 18 | 19 | buildTypes { 20 | release { 21 | minifyEnabled false 22 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 23 | } 24 | } 25 | compileOptions { 26 | sourceCompatibility JavaVersion.VERSION_1_8 27 | targetCompatibility JavaVersion.VERSION_1_8 28 | } 29 | kotlinOptions { 30 | jvmTarget = '1.8' 31 | } 32 | 33 | testOptions { 34 | unitTests.returnDefaultValues = true 35 | } 36 | } 37 | 38 | dependencies { 39 | 40 | implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" 41 | implementation 'androidx.core:core-ktx:1.3.1' 42 | implementation 'androidx.appcompat:appcompat:1.2.0' 43 | implementation 'com.google.android.material:material:1.2.1' 44 | implementation 'androidx.constraintlayout:constraintlayout:2.0.1' 45 | implementation project(path: ':lib_encryption') 46 | testImplementation 'junit:junit:4.+' 47 | androidTestImplementation 'androidx.test.ext:junit:1.1.2' 48 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0' 49 | } -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile -------------------------------------------------------------------------------- /app/src/androidTest/java/cn/mtjsoft/www/myencryptiondemo/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package cn.mtjsoft.www.myencryptiondemo 2 | 3 | import androidx.test.platform.app.InstrumentationRegistry 4 | import androidx.test.ext.junit.runners.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getInstrumentation().targetContext 22 | assertEquals("cn.mtjsoft.www.myencryptiondemo", appContext.packageName) 23 | } 24 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /app/src/main/java/cn/mtjsoft/www/myencryptiondemo/EncryptionActivity.kt: -------------------------------------------------------------------------------- 1 | package cn.mtjsoft.www.myencryptiondemo 2 | 3 | import android.content.Context 4 | import android.os.Bundle 5 | import android.view.View 6 | import android.view.inputmethod.InputMethodManager 7 | import android.widget.Button 8 | import android.widget.EditText 9 | import android.widget.Toast 10 | import androidx.appcompat.app.AppCompatActivity 11 | import cn.mtjsoft.lib_encryption.AES.AESUtil 12 | import cn.mtjsoft.lib_encryption.BASE64.Base64Util 13 | import cn.mtjsoft.lib_encryption.MD5.MD5Util 14 | import cn.mtjsoft.lib_encryption.RSA.RSAUtil 15 | import cn.mtjsoft.lib_encryption.SHA.SHAUtil 16 | import cn.mtjsoft.lib_encryption.SM2.SM2Util 17 | import cn.mtjsoft.lib_encryption.SM3.SM3Util 18 | import cn.mtjsoft.lib_encryption.SM4.SM4Util 19 | import cn.mtjsoft.lib_encryption.utils.Util 20 | import java.security.KeyPair 21 | 22 | /** 23 | * type: 24 | * 0 AES, 1 BASE64, 2 MD5, 3 RSA, 4 SHA, 5 SM2, 6 SM3, 7 SM4 25 | */ 26 | class EncryptionActivity : AppCompatActivity(), View.OnClickListener { 27 | 28 | var type = 0 29 | 30 | private lateinit var enEditText: EditText 31 | private lateinit var deEditText: EditText 32 | 33 | // AES 34 | private var keyAES = ByteArray(0) 35 | 36 | // RSA 37 | private var keyPair: KeyPair? = null 38 | 39 | // SM2 40 | private var publicKeySM2 = ByteArray(0) 41 | private var privateKeySM2 = ByteArray(0) 42 | 43 | // SM4 44 | private var keySM4 = ByteArray(0) 45 | 46 | override fun onCreate(savedInstanceState: Bundle?) { 47 | super.onCreate(savedInstanceState) 48 | setContentView(R.layout.activity_encryption) 49 | enEditText = findViewById(R.id.et_top) 50 | deEditText = findViewById(R.id.et_bottom) 51 | val btn_de: Button = findViewById(R.id.btn_de) 52 | type = intent.getIntExtra("type", 0) 53 | title = intent.getStringExtra("name") 54 | btn_de.visibility = View.VISIBLE 55 | // 根据类型,先生成密钥 56 | when (type) { 57 | 0 -> { 58 | keyAES = AESUtil.generateKey() 59 | } 60 | 2, 4, 6 -> { 61 | btn_de.visibility = View.GONE 62 | } 63 | 3 -> { 64 | keyPair = RSAUtil.generateRSAKeyPair() 65 | } 66 | 5 -> { 67 | val key = SM2Util.generateKeyPair() 68 | publicKeySM2 = key[0] 69 | privateKeySM2 = key[1] 70 | } 71 | 7 -> { 72 | keySM4 = SM4Util.createSM4Key() 73 | } 74 | } 75 | } 76 | 77 | override fun onClick(p0: View) { 78 | when (p0.id) { 79 | R.id.btn_en -> { 80 | val enString = enEditText.text.trim().toString() 81 | if (enString.isEmpty()) { 82 | Toast.makeText(this, "请输入待加密数据", Toast.LENGTH_SHORT).show() 83 | return 84 | } 85 | val manager: InputMethodManager = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager 86 | manager.hideSoftInputFromWindow(p0.windowToken, InputMethodManager.HIDE_NOT_ALWAYS) 87 | encrypt(enString) 88 | } 89 | R.id.btn_de -> { 90 | val deString = deEditText.text.trim().toString() 91 | if (deString.isEmpty()) { 92 | Toast.makeText(this, "请输入待解密数据", Toast.LENGTH_SHORT).show() 93 | return 94 | } 95 | val manager: InputMethodManager = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager 96 | manager.hideSoftInputFromWindow(p0.windowToken, InputMethodManager.HIDE_NOT_ALWAYS) 97 | decrypt(deString) 98 | } 99 | } 100 | } 101 | 102 | private fun encrypt(dataString: String) { 103 | val enString = when (type) { 104 | 0 -> { 105 | Util.byte2HexStr(AESUtil.encrypt(dataString.toByteArray(), keyAES)) 106 | } 107 | 1 -> { 108 | Base64Util.encode(dataString.toByteArray()) 109 | } 110 | 2 -> { 111 | MD5Util.stringMD5(dataString) 112 | } 113 | 3 -> { 114 | Util.byte2HexStr(RSAUtil.encryptByPublicKey(dataString.toByteArray(), keyPair?.public)) 115 | } 116 | 4 -> { 117 | SHAUtil.stringSHA(dataString, SHAUtil.SHA1) 118 | } 119 | 5 -> { 120 | Util.byte2HexStr(SM2Util.encrypt(publicKeySM2, dataString.toByteArray())) 121 | } 122 | 6 -> { 123 | SM3Util.encryptInner(dataString) 124 | } 125 | 7 -> { 126 | Util.byte2HexStr(SM4Util.encrypt(dataString.toByteArray(), keySM4, SM4Util.SM4_CBC_PKCS5, ByteArray(16))) 127 | } 128 | else -> "" 129 | } 130 | deEditText.setText(enString) 131 | enEditText.setText("") 132 | Toast.makeText(this, "加密完成", Toast.LENGTH_SHORT).show() 133 | } 134 | 135 | private fun decrypt(dataString: String) { 136 | val deString = when (type) { 137 | 0 -> { 138 | String(AESUtil.decrypt(Util.hexStr2Bytes(dataString), keyAES)) 139 | } 140 | 1 -> { 141 | String(Base64Util.decode(dataString)) 142 | } 143 | 3 -> { 144 | String(RSAUtil.decryptByPrivateKey(Util.hexStr2Bytes(dataString), keyPair?.private)) 145 | } 146 | 5 -> { 147 | String(SM2Util.decrypt(privateKeySM2, Util.hexStr2Bytes(dataString))) 148 | } 149 | 7 -> { 150 | String(SM4Util.decrypt(Util.hexStr2Bytes(dataString), keySM4, SM4Util.SM4_CBC_PKCS5, ByteArray(16))) 151 | } 152 | else -> "" 153 | } 154 | enEditText.setText(deString) 155 | deEditText.setText("") 156 | Toast.makeText(this, "解密完成", Toast.LENGTH_SHORT).show() 157 | } 158 | } -------------------------------------------------------------------------------- /app/src/main/java/cn/mtjsoft/www/myencryptiondemo/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package cn.mtjsoft.www.myencryptiondemo 2 | 3 | import android.content.Intent 4 | import android.os.Bundle 5 | import android.view.View 6 | import androidx.appcompat.app.AppCompatActivity 7 | 8 | class MainActivity : AppCompatActivity(), View.OnClickListener { 9 | override fun onCreate(savedInstanceState: Bundle?) { 10 | super.onCreate(savedInstanceState) 11 | setContentView(R.layout.activity_main) 12 | } 13 | 14 | override fun onClick(p0: View) { 15 | val intent = Intent(this, EncryptionActivity::class.java) 16 | var type = 0 17 | var name = "AES" 18 | when (p0.id) { 19 | R.id.btn_aes -> { 20 | type = 0 21 | name = "AES" 22 | } 23 | R.id.btn_base64 -> { 24 | type = 1 25 | name = "BASE64" 26 | } 27 | R.id.btn_md5 -> { 28 | type = 2 29 | name = "MD5" 30 | } 31 | R.id.btn_rsa -> { 32 | type = 3 33 | name = "RSA" 34 | } 35 | R.id.btn_sha -> { 36 | type = 4 37 | name = "SHA" 38 | } 39 | R.id.btn_sm2 -> { 40 | type = 5 41 | name = "SM2" 42 | } 43 | R.id.btn_sm3 -> { 44 | type = 6 45 | name = "SM3" 46 | } 47 | R.id.btn_sm4 -> { 48 | type = 7 49 | name = "SM4" 50 | } 51 | } 52 | intent.putExtra("type", type) 53 | intent.putExtra("name", name) 54 | startActivity(intent) 55 | } 56 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 15 | 18 | 21 | 22 | 23 | 24 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_encryption.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 20 | 21 |