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Code Issues Releases Wiki Activity

bugfix: #627 (#634) 

Emmm...解密是没有长度限制的
pull/654/head
Tsln 2021-04-27 14:29:33 +08:00 committed by GitHub
parent 19214fd592
commit f207d003c2
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 11 deletions
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26
eladmin-common/src/main/java/me/zhengjie/utils/RsaUtils.java
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@ -81,7 +81,7 @@ public class RsaUtils {
PublicKey publicKey = keyFactory.generatePublic(x509EncodedKeySpec);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.DECRYPT_MODE, publicKey);
byte[] result = doLongerCipherFinal(cipher, Base64.decodeBase64(text));
byte[] result = doLongerCipherFinal(Cipher.DECRYPT_MODE, cipher, Base64.decodeBase64(text));
return new String(result);
}
@ -99,7 +99,7 @@ public class RsaUtils {
PrivateKey privateKey = keyFactory.generatePrivate(pkcs8EncodedKeySpec);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
byte[] result = doLongerCipherFinal(cipher, text.getBytes());
byte[] result = doLongerCipherFinal(Cipher.ENCRYPT_MODE, cipher, text.getBytes());
return Base64.encodeBase64String(result);
}
@ -117,7 +117,7 @@ public class RsaUtils {
PrivateKey privateKey = keyFactory.generatePrivate(pkcs8EncodedKeySpec5);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.DECRYPT_MODE, privateKey);
byte[] result = doLongerCipherFinal(cipher, Base64.decodeBase64(text));
byte[] result = doLongerCipherFinal(Cipher.DECRYPT_MODE, cipher, Base64.decodeBase64(text));
return new String(result);
}
@ -134,18 +134,22 @@ public class RsaUtils {
PublicKey publicKey = keyFactory.generatePublic(x509EncodedKeySpec2);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
byte[] result = doLongerCipherFinal(cipher, text.getBytes());
byte[] result = doLongerCipherFinal(Cipher.ENCRYPT_MODE, cipher, text.getBytes());
return Base64.encodeBase64String(result);
}
private static byte[] doLongerCipherFinal(Cipher cipher, byte[] source) throws Exception {
int offset = 0;
int totalSize = source.length;
private static byte[] doLongerCipherFinal(int opMode,Cipher cipher, byte[] source) throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
while (totalSize - offset > 0) {
int size = Math.min(1024 / 8 - 11, totalSize - offset);
out.write(cipher.doFinal(source, offset, size));
offset += size;
if (opMode == Cipher.DECRYPT_MODE) {
out.write(cipher.doFinal(source));
} else {
int offset = 0;
int totalSize = source.length;
while (totalSize - offset > 0) {
int size = Math.min(cipher.getOutputSize(0) - 11, totalSize - offset);
out.write(cipher.doFinal(source, offset, size));
offset += size;
}
}
out.close();
return out.toByteArray();