修改实体位置

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/RsaHelper.java

@@ -28,7 +28,15 @@ public final class RsaHelper {
     private static final String ALGORITHM_SIGN = "MD5withRSA";
 
     private static final int KEYPAIR_LEN = 1024;
-    public static final int MAX_ENCRYPT_BLOCK = 64;
+    /**
+     * RSA最大加密明文大小
+     */
+    private static final int MAX_ENCRYPT_BLOCK = 117;
+
+    /**
+     * RSA最大解密密文大小
+     */
+    private static final int MAX_DECRYPT_BLOCK = 128;
 
     private RsaHelper() {
         super();
@@ -156,7 +164,7 @@ public final class RsaHelper {
             Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
             cipher.init(Cipher.DECRYPT_MODE, publicKey);
 
-            byte[] to = handle(bytes, MAX_ENCRYPT_BLOCK, new HandleBytes() {
+            byte[] to = handle(bytes, MAX_DECRYPT_BLOCK, new HandleBytes() {
                 @Override
                 public byte[] handle(byte[] from, int offset, int len) throws Exception {
                     return cipher.doFinal(from, offset, len);
@@ -234,7 +242,7 @@ public final class RsaHelper {
             Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
             cipher.init(Cipher.DECRYPT_MODE, privateKey);
 
-            byte[] to = handle(bytes, MAX_ENCRYPT_BLOCK, new HandleBytes() {
+            byte[] to = handle(bytes, MAX_DECRYPT_BLOCK, new HandleBytes() {
                 @Override
                 public byte[] handle(byte[] from, int offset, int len) throws Exception {
                     return cipher.doFinal(from, offset, len);

yzg-util-base/src/test/java/helper/TestRsa.java

@@ -21,6 +21,7 @@ public class TestRsa {
             sb.append((char) ('A' + i % 26));
         }
         String from = sb.toString();
+
         String value = RsaHelper.encryptionByPublicKey(from, publicKey);
         String result = RsaHelper.decryptionByPrivateKey(value, privateKey);
         System.out.println(from);