Encrypt Password in Login Form with ASP.NET MVC and Entity Framework

HeLPER?

Getting an exeption on de.SaveChanges();
Exception='Unable to update the EntitySet 'Account' because it has a DefiningQuery and no <InsertFunction> element exists in the
ModificationFunctionMapping> element to support the current operation.'

can you help me, i can't find verifyHash in passwordhelper

public class PasswordHelper
{
public static string ComputeHash(string plainText,
string hashAlgorithm,
byte[] saltBytes)
{
// If salt is not specified, generate it on the fly.
if (saltBytes == null)
{
// Define min and max salt sizes.
int minSaltSize = 4;
int maxSaltSize = 8;

// Generate a random number for the size of the salt.
Random random = new Random();
int saltSize = random.Next(minSaltSize, maxSaltSize);

// Allocate a byte array, which will hold the salt.
saltBytes = new byte[saltSize];

// Initialize a random number generator.
RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();

// Fill the salt with cryptographically strong byte values.
rng.GetNonZeroBytes(saltBytes);
}

// Convert plain text into a byte array.
byte[] plainTextBytes = Encoding.UTF8.GetBytes(plainText);

// Allocate array, which will hold plain text and salt.
byte[] plainTextWithSaltBytes =
new byte[plainTextBytes.Length + saltBytes.Length];

// Copy plain text bytes into resulting array.
for (int i = 0; i < plainTextBytes.Length; i++)
plainTextWithSaltBytes[i] = plainTextBytes[i];

// Append salt bytes to the resulting array.
for (int i = 0; i < saltBytes.Length; i++)
plainTextWithSaltBytes[plainTextBytes.Length + i] = saltBytes[i];

// Because we support multiple hashing algorithms, we must define
// hash object as a common (abstract) base class. We will specify the
// actual hashing algorithm class later during object creation.
HashAlgorithm hash;

// Make sure hashing algorithm name is specified.
if (hashAlgorithm == null)
hashAlgorithm = "";

// Initialize appropriate hashing algorithm class.
switch (hashAlgorithm.ToUpper())
{
case "SHA1":
hash = new SHA1Managed();
break;

case "SHA256":
hash = new SHA256Managed();
break;

case "SHA384":
hash = new SHA384Managed();
break;

case "SHA512":
hash = new SHA512Managed();
break;

default:
hash = new MD5CryptoServiceProvider();
break;
}

// Compute hash value of our plain text with appended salt.
byte[] hashBytes = hash.ComputeHash(plainTextWithSaltBytes);

// Create array which will hold hash and original salt bytes.
byte[] hashWithSaltBytes = new byte[hashBytes.Length +
saltBytes.Length];

// Copy hash bytes into resulting array.
for (int i = 0; i < hashBytes.Length; i++)
hashWithSaltBytes[i] = hashBytes[i];

// Append salt bytes to the result.
for (int i = 0; i < saltBytes.Length; i++)
hashWithSaltBytes[hashBytes.Length + i] = saltBytes[i];

// Convert result into a base64-encoded string.
string hashValue = Convert.ToBase64String(hashWithSaltBytes);

// Return the result.
return hashValue;
}

}

PasswordHelper.cs ... Can u give Code ?

so it's not for free?

PasswordHelper.cs can i get the class?

in this example how can i implement forgot password feature . can you please tell me

why can't I login ?
my error inLogin method  :
Line 62:             Account account2 = db.Accounts.Find(accountViewModel.Account.Username);

and in my browser:
The argument types 'Edm.Int64' and 'Edm.String' are incompatible for this operation. Near WHERE predicate, line 1, column 70.

hi, how to do validation if i have insert password in HASHBYTES SHA1 in the database?

Learning programming must say, you don't need English to grow... you are awesome.. you are clear on what you are explaining. you are true rock-star.

if you show something for us u MUST to show all of CLEAR..Where is the hash.cs ?? sorry bro .. to much ego kill your talents! No one dont need buy your book.

at first I though there was something wrong with my sound xD very useful information, too quiet in my opinion but the message at least was clear

why razor????

why did you create a viewmodel for the Account model if they're the same?

"My Demo" what is that?