Android使用RSA加密字符串公钥
问题描述:
我正在使用RSA公钥加密密码的项目中工作。我试了很多样本和解决方案等等之类如下Android使用RSA加密字符串公钥
但没有解决方案的情况下,我的工作很遗憾。我曾多次获得以下情况例外,如果我有任何变通
错误日志尝试:
04-21 07:50:57.876 18842-18842/com.takeoffandroid.passwordencryption W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
04-21 07:50:57.986 18842-18842/com.takeoffandroid.passwordencryption W/System.err: java.security.spec.InvalidKeySpecException: java.lang.RuntimeException: error:0c0890ba:ASN.1 encoding routines:asn1_check_tlen:WRONG_TAG
04-21 07:50:57.986 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.android.org.conscrypt.OpenSSLKey.getPublicKey(OpenSSLKey.java:250)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.android.org.conscrypt.OpenSSLRSAKeyFactory.engineGeneratePublic(OpenSSLRSAKeyFactory.java:47)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at java.security.KeyFactory.generatePublic(KeyFactory.java:172)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.takeoffandroid.passwordencryption.MainActivity.RSAEncrypt(MainActivity.java:181)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.takeoffandroid.passwordencryption.MainActivity.onCreate(MainActivity.java:80)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.app.Activity.performCreate(Activity.java:6532)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2383)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.app.ActivityThread.access$900(ActivityThread.java:157)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.os.Looper.loop(Looper.java:148)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5437)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at java.lang.reflect.Method.invoke(Native Method)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: Caused by: java.lang.RuntimeException: error:0c0890ba:ASN.1 encoding routines:asn1_check_tlen:WRONG_TAG
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.android.org.conscrypt.NativeCrypto.d2i_PUBKEY(Native Method)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: at com.android.org.conscrypt.OpenSSLKey.getPublicKey(OpenSSLKey.java:248)
04-21 07:50:57.987 18842-18842/com.takeoffandroid.passwordencryption W/System.err: ... 16 more
我的要求:
我有我的公钥,我想加密使用该公钥在edittext中输入的文本。例如:密码@ 123应该使用公钥加密。
公钥:
public static String PUBLIC_KEY = "-----BEGIN RSA PUBLIC KEY-----\n" +
"MMDDFDFK43545mmdf499Mdfdasl43ND/GGKLGKL4434safddEcBFfbTZUM517\n" +
"VDSVFS45fwdGJGGLKGGL332XSA3=d/S/2ETegJPFQ4sjiY7/DsS2o9Gr\n" +
"asBASF3465243FCDXSDCDxsSFC39NkDiNO2QKNXivAQVpuJeuoDeK\n" +
"wNGmwDkIsvxBn8u55QpOwvdaRBeLqllJ6xoF6OuwnD0IB4tVDL2MbMVj1U9GtEGL\n" +
"DJKHSJAH434jjhdds54KkhjbvGJGGGG/Vn4OYNooIWE9uuiyxm2M\n" +
"AFSDAFXZB546FGHxcvv324FDGJIYTaa346/9xQIDAQAB\n" +
"-----END RSA PUBLIC KEY-----";
代码实现我尝试:
样品I:
public static String encryptDataRSA(final String data) throws IOException {
final byte[] dataToEncrypt = data.getBytes();
byte[] encryptedData = null;
try {
PublicKey publicKey = KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(RSAUtils.PUBLIC_KEY.getBytes()));
final Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
encryptedData = cipher.doFinal(dataToEncrypt);
try {
final String encryptedText = new String(Base64.encode(encryptedData, Base64.DEFAULT), "UTF-8");
return encryptedText.toString();
}
catch (final UnsupportedEncodingException e1) { return null; }
} catch (Exception e) { e.printStackTrace(); }
return "ERROR";
}
样品II:
public byte[] RSAEncrypt(final String plain) throws NoSuchAlgorithmException, NoSuchPaddingException,
InvalidKeyException, IllegalBlockSizeException, BadPaddingException, InvalidKeySpecException {
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
kpg.initialize(1024);
KeyPair kp = kpg.genKeyPair();
PublicKey publicKey = KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(RSAUtils.PUBLIC_KEY.getBytes()));
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
byte[] encryptedBytes = cipher.doFinal(plain.getBytes());
System.out.println("EEncrypted?????" + org.apache.commons.codec.binary.Hex.encodeHexString(encryptedBytes));
return encryptedBytes;
}
样品III:
public static String encryptRSAToString(String text, String strPublicKey) {
byte[] cipherText = null;
String strEncryInfoData="";
try {
KeyFactory keyFac = KeyFactory.getInstance("RSA");
KeySpec keySpec = new X509EncodedKeySpec(Base64.decode(strPublicKey.trim().getBytes(), Base64.DEFAULT));
Key publicKey = keyFac.generatePublic(keySpec);
// get an RSA cipher object and print the provider
final Cipher cipher = Cipher.getInstance("RSA");
// encrypt the plain text using the public key
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
cipherText = cipher.doFinal(text.getBytes());
strEncryInfoData = new String(Base64.encode(cipherText,Base64.DEFAULT));
} catch (Exception e) {
e.printStackTrace();
}
return strEncryInfoData.replaceAll("(\\r|\\n)", "");
}
任何帮助或建议将是真的对我很有帮助。提前致谢。
答
试试这个。
public static String PUBLIC_KEY = "YOUR PUBLIC KEY";
static String enccriptData(String txt)
{
String encoded = "";
byte[] encrypted = null;
try {
byte[] publicBytes = Base64.decode(PUBLIC_KEY, Base64.DEFAULT);
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(publicBytes);
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey pubKey = keyFactory.generatePublic(keySpec);
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1PADDING"); //or try with "RSA"
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
encrypted = cipher.doFinal(txt.getBytes());
encoded = Base64.encodeToString(encrypted, Base64.DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
return encoded;
}
编辑:
你可以使用我的代码,但读詹姆斯·诺克斯·波尔克的评论,他是对的
你的公钥显然损坏。您在base64字符串中间有一个等号('='),这是无效的。即使我删除该密钥仍然无效。 –
其实我发布了一个示例公钥。我使用的实际密钥完全不同。 – Chandru
@JamesKPolk请在这里找到实际的钥匙https://pastebin.com/7beLfTpK – Chandru