Databases
StackOverflow2013
Postsdbo
PORSA .NET encryption Java decryption
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PORSA .NET encryption Java decryption
    primarykey
    data
    text
    <p>I am trying to encrypt strings in .NET by using a RSA algorithm and decrypt the result in Java. At the moment, I have been able to do the opposite (Encrypt in Java, Decrypt in .NET). Here I have my code that actually works (JAVA encryption):</p> <pre><code>byte[] modulusBytes = Base64.decode("2rRVVVFJRbH/wAPDtnwZwu+nxU+AZ6uXxh/sW+AMCBogg7vndZsnRiHoLttYYPqOyOhfgaBOQogrIfrKL4lipK4m52SBzw/FfcM9DsKs/rYR83tBLiIAfgdnVjF27tZID+HJMFTiI30mALjr7+tfp+2lIACXA1RIKTk7S9pDmX8="); byte[] exponentBytes = Base64.decode("AQAB"); BigInteger modulus = new BigInteger(1, modulusBytes ); BigInteger exponent = new BigInteger(1, exponentBytes); RSAPublicKeySpec rsaPubKey = new RSAPublicKeySpec(modulus, exponent); KeyFactory fact = KeyFactory.getInstance("RSA"); PublicKey pubKey = fact.generatePublic(rsaPubKey); Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding"); cipher.init(Cipher.ENCRYPT_MODE, pubKey); byte[] plainBytes = new String("big kitty dancing").getBytes("UTF-8"); byte[] cipherData = cipher.doFinal( plainBytes ); String encryptedString = Base64.encode(cipherData); return encryptedString; </code></pre> <p>And (.NET decryption)</p> <pre><code>const int PROVIDER_RSA_FULL = 1; const string CONTAINER_NAME = "Tracker"; CspParameters cspParams; cspParams = new CspParameters(PROVIDER_RSA_FULL); cspParams.KeyContainerName = CONTAINER_NAME; RSACryptoServiceProvider rsa1 = new RSACryptoServiceProvider(cspParams); rsa1.FromXmlString("&lt;RSAKeyValue&gt;&lt;Modulus&gt;2rRVVVFJRbH/wAPDtnwZwu+nxU+AZ6uXxh/sW+AMCBogg7vndZsnRiHoLttYYPqOyOhfgaBOQogrIfrKL4lipK4m52SBzw/FfcM9DsKs/rYR83tBLiIAfgdnVjF27tZID+HJMFTiI30mALjr7+tfp+2lIACXA1RIKTk7S9pDmX8=&lt;/Modulus&gt;&lt;Exponent&gt;AQAB&lt;/Exponent&gt;&lt;P&gt;+lXMCEwIN/7+eMpBrq87kQppxu3jJBTwztGTfXNaPUTx+A6uqRwug5oHBbSpYXKNDNCBzVm/0VxB3bo4FJx+ZQ==&lt;/P&gt;&lt;Q&gt;yasOGaJaE9xlF9T2xRuKeG9ZxCiyjhYaYB/mbtL+SIbtkRLi/AxaU4g2Il/UxhxhSXArKxIzV28zktispPJx1Q==&lt;/Q&gt;&lt;DP&gt;ueRgQIEFUV+fY979a1RgrVHIPpqEI1URhOMH3Q59oiXCcOumM5njyIHmWQxRAzXnG+7xlKXi1PrnRll0L4oOKQ==&lt;/DP&gt;&lt;DQ&gt;dfEMNgG1HJhwpxdtmqkYuoakwQvsIRzcIAuIAJh1DoWaupWJGk8/JEstHb1d+t7uJrzrAi2KyT/HscH2diE0YQ==&lt;/DQ&gt;&lt;InverseQ&gt;YoYF9PF6FiC0YngVeaC/eqt/ea8wMYNN3YO1LuzWpcy2exPRj2U0ZbWMvHXMUb4ea2qmhZGx1QlK4ULAuWKpXQ==&lt;/InverseQ&gt;&lt;D&gt;g1WAWI4pEK9TA7CA2Yyy/2FzzNiu0uQCuE2TZYRNiomo96KQXpxwqAzZLw+VDXfJMypwDMAVZe/SqzSJnFEtZxjdxaEo3VLcZ1mnbIL0vS7D6iFeYutF9kF231165qGd3k2tgymNMMpY7oYKjS11Y6JqWDU0WE5hjS2X35iG6mE=&lt;/D&gt;&lt;/RSAKeyValue&gt;"); string data2Decrypt = "BaB21vY+RD/jiY3AAsb269fIWTEH38s0xLUfJ7CoVUgaQ6vYzB0tiJ1Ag9HNEdCcuZdGchhqnms8jpsqsHC1iKrz6QCLsgUU7VNWDfQqZYR6Rl/GwR0biK2STnOL+g06f/JUdixHOHOgROify1m8qppYo5plpOVMqYFzEMREMkM="; byte[] encyrptedBytes = Convert.FromBase64String(data2Decrypt); byte[] plain = rsa1.Decrypt(encyrptedBytes, false); string decryptedString = System.Text.Encoding.UTF8.GetString(plain); Console.WriteLine("SALIDA: " + decryptedString); </code></pre> <p>Now I want to do the opposite... But I get some errors like (the size of the key should be 128 bytes... etc) How should I do it?</p> <p>Here I add the current <strong>non working</strong> code:</p> <p><strong>.NET</strong></p> <pre><code>public string Encrypt(string text) { const int PROVIDER_RSA_FULL = 1; const string CONTAINER_NAME = "Tracker"; CspParameters cspParams; cspParams = new CspParameters(PROVIDER_RSA_FULL); cspParams.KeyContainerName = CONTAINER_NAME; RSACryptoServiceProvider rsa1 = new RSACryptoServiceProvider(cspParams); rsa1.FromXmlString("&lt;RSAKeyValue&gt;&lt;Modulus&gt;2rRVVVFJRbH/wAPDtnwZwu+nxU+AZ6uXxh/sW+AMCBogg7vndZsnRiHoLttYYPqOyOhfgaBOQogrIfrKL4lipK4m52SBzw/FfcM9DsKs/rYR83tBLiIAfgdnVjF27tZID+HJMFTiI30mALjr7+tfp+2lIACXA1RIKTk7S9pDmX8=&lt;/Modulus&gt;&lt;Exponent&gt;AQAB&lt;/Exponent&gt;&lt;P&gt;92jJJyzFBSx6gL4Y1YpALmc5CNjoE/wETjqb3ci2v0+3rZWvJKmKy1ZEdlXpyuvXVksJ6cMdUpNAkMknUk9pTQ==&lt;/P&gt;&lt;Q&gt;4kxkABZOXyDLryYGCGY0b8N0FIdu5BTCFDYEdcatxl/f7ZGDS1NgHJpUWxkVXFfHy2Y/GuDOIbpcwlsO739H+w==&lt;/Q&gt;&lt;DP&gt;5bNFvrdUHF+VRN45VFjNCcgQLeSkY5mBrdfASoNFGA29LM5iE5nNIMfxPCS7sQiRnq6Af6YFHVtVgJchiMvtqQ==&lt;/DP&gt;&lt;DQ&gt;j+ng1qVY5epnXlWiFIla45C7K6sNfIMvAcdwgq39KWEjeWPGyYqWXtpOtzh2eylf6Bx4GVHKBW0NPJTIJMsfLQ==&lt;/DQ&gt;&lt;InverseQ&gt;8uu0dfPVDqB2qFM1Vdi8hl+2uZtN7gjT2co1cEWy29HVYBZD0k9KKCf2PbkeuSfpgFpE70wW5Hrp8V7l/SwSOw==&lt;/InverseQ&gt;&lt;D&gt;MM/c18zroJ2Iqi9s5/asvUBF3pjO3NSEbFjFpP/NT6WdKimvECWPz2xT6NlV0Vc6tQaAAmtn7Bt+HPhfVdrA4/ysYVe3/6TWkPjW+bvAhMWu/ZqISx11/jPYSGD9g3ZXgUiqcQM8UbOjlswoq4fpheEXTB0xdVutDLpO3qgHN6k=&lt;/D&gt;&lt;/RSAKeyValue&gt;"); System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding(); byte[] textBytes = encoding.GetBytes(text); byte[] encryptedOutput = rsa1.Encrypt(textBytes, false); string outputB64 = Convert.ToBase64String(encryptedOutput); Console.WriteLine(outputB64); return outputB64; } </code></pre> <p><strong>Java</strong></p> <pre><code>public static String Decrypt(String encodedString) throws IllegalBlockSizeException, UnsupportedEncodingException, InvalidKeyException, NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, BadPaddingException { byte[] modulusBytes = Base64.decode("2rRVVVFJRbH/wAPDtnwZwu+nxU+AZ6uXxh/sW+AMCBogg7vndZsnRiHoLttYYPqOyOhfgaBOQogrIfrKL4lipK4m52SBzw/FfcM9DsKs/rYR83tBLiIAfgdnVjF27tZID+HJMFTiI30mALjr7+tfp+2lIACXA1RIKTk7S9pDmX8="); byte[] exponentBytes = Base64.decode("AQAB"); BigInteger modulus = new BigInteger(1, modulusBytes ); BigInteger exponent = new BigInteger(1, exponentBytes); RSAPrivateKeySpec rsaPrivKey = new RSAPrivateKeySpec(modulus, exponent); KeyFactory fact = KeyFactory.getInstance("RSA"); PrivateKey privKey = fact.generatePrivate(rsaPrivKey); Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding"); cipher.init(Cipher.DECRYPT_MODE, privKey); byte[] base64String = Base64.decode(encodedString); byte[] plainBytes = new String(base64String).getBytes("UTF-8"); byte[] cipherData = cipher.doFinal(plainBytes); System.out.println(cipherData); return cipherData.toString(); } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCSchulz
    1. USReixons
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PORSA .NET encryption Java decryption
      1. USPaŭlo Ebermann
      1. VTFavorite
    2. VO
      singulars
      1. PORSA .NET encryption Java decryption
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PORSA .NET encryption Java decryption
      1. USAlex
      1. VTFavorite
    1. COGive us some stack traces. Are you specifying the same padding schemes? I'm able to encrypt in .Net decrypt in Java, and vice versa, no problem. Though I use PKCS5Padding(Java) and PKCS7 (.Net) and do not hard code keys.
      singulars
      1. PORSA .NET encryption Java decryption
      1. USPetey B
    2. COI cannot give any trace because the errors I get are varying (as I said the size of the key, padding exceptions as: javax.crypto.BadPaddingException: Data must start with zero) ... I can post the code that does not work, but I am working on it by now. If you could please post how you do it, I would be very grateful because it is important for me to solve this problem in the next few days...
      singulars
      1. PORSA .NET encryption Java decryption
      1. USReixons
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload