How can I decrypt SHA-512 hash code using salt?

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I have encrypted data using sha-512 Algo and its salt , I want to decrypt that data please anyone tell me how can I decode it using Java.

Thanks

SHA-512 is a cryptographic hash function. Cryptographic hash functions are one way - you can calculate the hash for a block of data, but it is not possible to get the original data back when you have only the hash. So you cannot decrypt a hash code to get back the original data.

Cryptographic hash functions are often used to store passwords in a database. To check if the password that a user entered is correct, the first thing you might think is "Ok, so I have to decrypt the password in the database and check if it's equal to what the user entered". That is, however, not how you do this.

Instead, what you do is hash the password that the user entered, and compare that hash to the hash stored in the database. If the hashes are the same, the user entered the correct password. You don't need to "decrypt" the hash.

How can I decrypt SHA-512 hash code using salt?, SHA-512 is a cryptographic hash function. Cryptographic hash functions are one way - you can calculate the hash for a block of data, but it is  Computes the SHA512 hash for the input data. SHA512Crypto Service Provider. The following example computes the SHA512 hash for data and stores it in result. This example assumes that there is a predefined constant DATA_SIZE. The hash is used as a unique value of fixed size representing a large amount of data.

SHa 512 is not an encryption. Hash an algorithm that is designed to be one way only to verify the integrity of data.

So in short: No, you cannot "decrypt" any hash algorithm.

Sha512 Decrypt & Encrypt, Encrypt a word in Sha512, or decrypt your hash by comparing it with our free Sha-512 is a function of cryptographic algorithm Sha-2, which is an evolution of A salt is a string sequence that you add to the user's password to add special  Sha-512 is very secure, but also takes a lot of database space. If you want to use it, you should still use a salt to improve security. A salt is a string sequence that you add to the user's password to add special characters to it, and makes it longer. This will help by making bruteforce more difficult, and avoid the password to be found on an

You can have Java compute a hash by using the MessageDigest class.

String plainText = "text" + "salt";

MessageDigest messageDigest = MessageDigest.getInstance("SHA-512");
byte[] hash = messageDigest.digest( plainText.getBytes() );

System.out.println("Result: " + new String(hash));

If you know the possible plainText values, you can find a matching hash. However, brute forcing this would take basically until the end of the world if you have no clue about the original data.

Hash sha512: Encryption and reverse decryption, A hash function is an algorithm that transforms (hashes) an arbitrary set of data elements, such as a text file, into a single fixed length value (the  SHA-512 is a cryptographic hash function. Cryptographic hash functions are one way - you can calculate the hash for a block of data, but it is not possible to get the original data back when you have only the hash. So you cannot decrypt a hash code to get back the original data.

HOW TO IMPLEMENT SHA512 INSTEAD OF MD5

Here MD5 code

public class RijndaelSimple
{
    public static string Decrypt
    (
        string cipherText,
        string passPhrase,
        string saltValue,
        string hashAlgorithm,
        int passwordIterations,
        string initVector,
        int keySize
    )
    {

        byte[] initVectorBytes = Encoding.ASCII.GetBytes(initVector);
        byte[] saltValueBytes = Encoding.ASCII.GetBytes(saltValue);

        byte[] cipherTextBytes = Convert.FromBase64String(cipherText);

        PasswordDeriveBytes password = new PasswordDeriveBytes
        (
            passPhrase,
            saltValueBytes,
            hashAlgorithm,
            passwordIterations
        );

        byte[] keyBytes = password.GetBytes(keySize / 8);
        RijndaelManaged symmetricKey = new RijndaelManaged();

        symmetricKey.Mode = CipherMode.CBC;


        ICryptoTransform decryptor = symmetricKey.CreateDecryptor
        (
            keyBytes,
            initVectorBytes
        );


        MemoryStream memoryStream = new MemoryStream(cipherTextBytes);


        CryptoStream cryptoStream = new CryptoStream
        (
            memoryStream,
            decryptor,
            CryptoStreamMode.Read
        );

        byte[] plainTextBytes = new byte[cipherTextBytes.Length];


        int decryptedByteCount = cryptoStream.Read
        (
            plainTextBytes,
            0,
            plainTextBytes.Length
        );

        memoryStream.Close();
        cryptoStream.Close();

        string plainText = Encoding.UTF8.GetString
        (
            plainTextBytes,
            0,
            decryptedByteCount
        );

        return plainText;
    }
}

public class RijndaelSimpleTest
{

    [STAThread]
    static void Main(string[] args)
    {
        string plainText = "Hello, World!";    // original plaintext

        string passPhrase = "Pas5pr@se";        // can be any string
        string saltValue = "kplcs@1tValue";        // can be any string
        string hashAlgorithm = "SHA1";             // can be "MD5"
        int passwordIterations = 2;               // can be any number
        string initVector = "@1B2c3D4e5F6g7H8"; // must be 16 bytes
        int keySize = 256;                // can be 192 or 128

        Console.WriteLine(String.Format("Plaintext : {0}", plainText));

        string cipherText = RijndaelSimple.Encrypt
        (
            plainText,
            passPhrase,
            saltValue,
            hashAlgorithm,
            passwordIterations,
            initVector,
            keySize
        );

        Console.WriteLine(String.Format("Encrypted : {0}", cipherText));

        plainText = RijndaelSimple.Decrypt
        (
            cipherText,
            passPhrase,
            saltValue,
            hashAlgorithm,
            passwordIterations,
            initVector,
            keySize
        );

        Console.WriteLine(String.Format("Decrypted : {0}", plainText));}}

Decrypting the password from SHA-512 hash value, Decrypting the password from SHA-512 hash value · passwords salt sha-2. I am currently studying AES algorithm and writing a Code using  Assuming the salt is very long, not knowing the salt would make it nearly impossible to crack (due to the additional length that the salt adds to the password), but you still have to brute force even if you do know the salt. As an example, let's say that the password is "secret" and the salt is "535743".

Best SHA512 Hash Password Decrypt, Decrypt SHA512 password hashes with Hash Toolkit. Search the The result of a hash function are called hash code, digest, hash value or simply hash. What to Use as a Salt the SQL Server HASHBYTES() function If you're not familiar with what the salt is when it comes to cryptographic functions, it's basically something added to whatever we're trying to encrypt to make it harder to decrypt the data (two way functions, like symmetric and asymmetric key functions) or find a collision (one way

SHA512 Decode - What Is MD5 Hash Checksum?, How can I decrypt SHA-512 hash code using salt?4 answersNov 29, 2012how to decrypt SHA512 hash value to an actual string 6 answersDec 2,  I haven't thought this through all the way, and I am by no means a security expert, but it seems to me that if you were to encrypt (using, for example, AES256) the password using the salt as the key, and then hash that with SHA512, you'd be safe from the vulnerability I described above.

Decrypt MD5, SHA1, MySQL, NTLM, SHA256, SHA512, Wordpress , Decrypt and crack your MD5, SHA1, SHA256, MySQL, and NTLM hashes for free online. We also support Bcrypt, SHA512, Wordpress and many more. There is no point in a salt larger than 128 bits/16 bytes. A salt should be unique, nothing more. A hash size larger than the native size (20 bytes for SHA-1) reduces performance for the defender but not for the attacker. Since this means you can afford fewer iterations, it actually weakens security.

Comments
  • SHA-512 is a hash function, not an encryption function. It's designed to be "one-way" - in other words, once you SHA-512 hash something, it can't be "unhashed".
  • Of course it has collisions. It's a hash function. Any input with more than 512 bits is liable to produce collisions. The meaning of the column in your Wikipedia citation is that no collisions were observed in a specific experiment.
  • Hi, utopianheaven I know how to encrypt but tell me how can I decrypt that encrypted data, thnks
  • @Narendra have you read the other answers? it is not possible as it is not an encryption. What is shown here is brute force cracking, which can take a VERY long time.