没有静态方法encodeBase64String([B)Ljava/lang/String；在类Lorg/apache/共用/编解码器/二进制/Base64 64中；或它的超类
没有静态方法encodeBase64String([B)Ljava/lang/String；在类Lorg/apache/共用/编解码器/二进制/Base64 64中；或它的超类
提问于 2020-12-30 04:38:36
实际上，我正试图在我的android应用程序中添加Aes加密和解密功能。在加密期间，它将使我崩溃在我的motoG5 S+设备，但它在我的一个加设备内正常工作。
这里是我的代码: AesUtil.Java
public class AesUtil {
private int keySize = 256;
private int iterationCount = 1000 ;
private Cipher cipher;
private final String salt = "36e8fc9a6adf090665f459a7ad1b864d";
private final String iv = "ab00b7ea4e88500f2f0a17a7b5c7bcb1";
private final String passphrase = "ArknRQxD1YgaSFRHrjYazX7JMrlRxTERdkQx0dhENVlz";
public AesUtil() {
try {
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
}
catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw fail(e);
}
}
public String encrypt(String plaintext) {
try {
SecretKey key = generateKey(salt, passphrase);
byte[] encrypted = doFinal(Cipher.ENCRYPT_MODE, key, iv, plaintext.getBytes("UTF-8"));
return Base64.encodeBase64String(encrypted);
}
catch (UnsupportedEncodingException e) {
throw fail(e);
}
}
public String decrypt(String salt, String iv, String passphrase, String ciphertext) {
try {
SecretKey key = generateKey(salt, passphrase);
byte[] decrypted = doFinal(Cipher.DECRYPT_MODE, key, iv, base64(ciphertext));
return new String(decrypted, "UTF-8");
} catch (Exception e) {
throw fail(e);
}
}
private byte[] doFinal(int encryptMode, SecretKey key, String iv, byte[] bytes) {
try {
cipher.init(encryptMode, key, new IvParameterSpec(hex(iv)));
return cipher.doFinal(bytes);
} catch (InvalidKeyException
| InvalidAlgorithmParameterException
| IllegalBlockSizeException
| BadPaddingException e) {
throw fail(e);
}
}
public SecretKey generateKey(String salt, String passphrase) {
try {
SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
KeySpec spec = new PBEKeySpec(passphrase.toCharArray(), hex(salt), iterationCount, keySize);
SecretKey key = new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES");
return key;
}
catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
return null;
}
}
public static byte[] base64(String str) {
return Base64.decodeBase64(str);
}
public static byte[] hex(String str) {
try {
return Hex.decodeHex(str.toCharArray());
}
catch (DecoderException e) {
throw new IllegalStateException(e);
}
}
private IllegalStateException fail(Exception e) {
e.printStackTrace();
return null;
} }我主要活动中的调用函数：
String encryptedText=AesUtil().encrypt("codeinsidecoffee")Moto G5s Plus中的G5s日志：
/system/framework/org.apache.http.legacy.boot.jar)：java.lang.NoSuchMethodError:没有静态方法encodeBase64String([B)Ljava/lang/String；在类Lorg/apache/java.lang.NoSuchMethodError/codec/二进制/Base64 64中；或它的超类( 'org.apache.commons.codec.binary.Base64‘的声明出现在java.lang.NoSuchMethodError at com.justcodenow.bynfor.utils.AesUtil.encrypt(AesUtil.java:40)中)
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-12-30 04:38:36
Method1:自Apache 1.4版本以来，就可以使用此方法。如果手机的操作系统只有较旧版本的Codec包，则该方法将不可用。或者，我们可以使用旧版本中存在的方法。
而不是：
String encodedString = Base64.encodeBase64String(bytes);使用：
String encodedString = new String(Base64.encodeBase64(bytes));和用于解码，而不是：
byte[] bytes = Base64.decodeBase64(encodedString);使用：
byte[] bytes = Base64.decodeBase64(encodedString.getBytes()); 方法2：您还可以使用下面的完整代码进行加密和解密.
import android.util.Base64;
import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Hex;
import javax.crypto.*;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;
import java.io.UnsupportedEncodingException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
public class AesUtil {
private int keySize = 256;
private int iterationCount = 1000 ;
private Cipher cipher;
private final String salt = "36e8fc9a6adf090665f459a7ad1b864d";
private final String iv = "ab00b7ea4e88500f2f0a17a7b5c7bcb1";
private final String passphrase = "ArknRQxD1YgaSFRHrjYazX7JMrlRxTERdkQx0dhENVlz";
public AesUtil() {
try {
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
}
catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw fail(e);
}
}
public String encrypt(String plaintext) {
try {
SecretKey key = generateKey(salt, passphrase);
byte[] encrypted = doFinal(Cipher.ENCRYPT_MODE, key, iv, plaintext.getBytes("UTF-8"));
return Base64.encodeToString(encrypted, Base64.DEFAULT);
}
catch (UnsupportedEncodingException e) {
throw fail(e);
}
}
public String decrypt(String salt, String iv, String passphrase, String ciphertext) {
try {
SecretKey key = generateKey(salt, passphrase);
byte[] decrypted = doFinal(Cipher.DECRYPT_MODE, key, iv, base64(ciphertext));
return new String(decrypted, "UTF-8");
} catch (Exception e) {
throw fail(e);
}
}
private byte[] doFinal(int encryptMode, SecretKey key, String iv, byte[] bytes) {
try {
cipher.init(encryptMode, key, new IvParameterSpec(hex(iv)));
return cipher.doFinal(bytes);
} catch (InvalidKeyException
| InvalidAlgorithmParameterException
| IllegalBlockSizeException
| BadPaddingException e) {
throw fail(e);
}
}
public SecretKey generateKey(String salt, String passphrase) {
try {
SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
KeySpec spec = new PBEKeySpec(passphrase.toCharArray(), hex(salt), iterationCount, keySize);
SecretKey key = new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES");
return key;
}
catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
return null;
}
}
public static byte[] base64(String str) {
return Base64.decode(str, Base64.DEFAULT);
}
public static byte[] hex(String str) {
try {
return Hex.decodeHex(str.toCharArray());
}
catch (DecoderException e) {
throw fail(e);
}
}
private IllegalStateException fail(Exception e) {
e.printStackTrace();
return null;
}
private static IllegalStateException fail(DecoderException e) {
e.printStackTrace();
return null;
} }页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/65502088
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