internal static bool CompareHash(string hashInstance, byte[] plaintext, byte[] hashedText, ConfigurationContext context)
{
ArgumentValidation.CheckForNullReference(hashInstance, "hashInstance");
ArgumentValidation.CheckForEmptyString(hashInstance, "hashInstance");
HashProviderFactory factory = new HashProviderFactory(context);
IHashProvider hashProvider = factory.CreateHashProvider(hashInstance);
return(hashProvider.CompareHash(plaintext, hashedText));
}
public UserForm(DbAuthenticationProviderData dbAuthenticationProvider, ConfigurationContext context)
{
this.dbAuthenticationProvider = dbAuthenticationProvider;
InitializeComponent();
this.userRoleMgr = new UserRoleManager(dbAuthenticationProvider.Database, context);
HashProviderFactory hashProviderFactory = new HashProviderFactory(context);
this.hashProvider = hashProviderFactory.CreateHashProvider(dbAuthenticationProvider.HashProvider);
UpdateSaveButtonEnabled();
}
/// <overrides>
/// Computes the hash value of plain text using the given hash provider instance
/// </overrides>
/// <summary>
/// Computes the hash value of plain text using the given hash provider instance
/// </summary>
/// <param name="hashInstance">A hash instance from configuration.</param>
/// <param name="plaintext">The input for which to compute the hash.</param>
/// <returns>The computed hash code.</returns>
public static byte[] CreateHash(string hashInstance, byte[] plaintext)
{
if (string.IsNullOrEmpty(hashInstance)) throw new ArgumentException(Resources.ExceptionNullOrEmptyString, "hashInstance");
try
{
HashProviderFactory factory = new HashProviderFactory(ConfigurationSourceFactory.Create());
IHashProvider hashProvider = factory.Create(hashInstance);
return hashProvider.CreateHash(plaintext);
}
catch (ConfigurationErrorsException configurationException)
{
TryLogHashConfigurationError(configurationException, hashInstance);
throw;
}
}
/// <overrides>
/// Compares plain text input with a computed hash using the given hash provider instance.
/// </overrides>
/// <summary>
/// Compares plain text input with a computed hash using the given hash provider instance.
/// </summary>
/// <remarks>
/// Use this method to compare hash values. Since hashes may contain a random "salt" value, two seperately generated
/// hashes of the same plain text may result in different values.
/// </remarks>
/// <param name="hashInstance">A hash instance from configuration.</param>
/// <param name="plaintext">The input for which you want to compare the hash to.</param>
/// <param name="hashedText">The hash value for which you want to compare the input to.</param>
/// <returns><c>true</c> if plainText hashed is equal to the hashedText. Otherwise, <c>false</c>.</returns>
public static bool CompareHash(string hashInstance, byte[] plaintext, byte[] hashedText)
{
if (string.IsNullOrEmpty(hashInstance))
{
throw new ArgumentException(Resources.ExceptionNullOrEmptyString, "hashInstance");
}
try
{
HashProviderFactory factory = new HashProviderFactory(ConfigurationSourceFactory.Create());
IHashProvider hashProvider = factory.Create(hashInstance);
return(hashProvider.CompareHash(plaintext, hashedText));
}
catch (ConfigurationErrorsException configurationException)
{
TryLogHashConfigurationError(configurationException, hashInstance);
throw;
}
}
internal static byte[] CreateHash(string hashInstance, byte[] plaintext, ConfigurationContext context)
{
ArgumentValidation.CheckForNullReference(hashInstance, "hashInstance");
ArgumentValidation.CheckForEmptyString(hashInstance, "hashInstance");
HashProviderFactory factory = new HashProviderFactory(context);
IHashProvider hashProvider = factory.CreateHashProvider(hashInstance);
return hashProvider.CreateHash(plaintext);
}
/// <devdoc>
/// Compares the password passed in against the password stored in the database.
/// </devdoc>
private bool PasswordsMatch(byte[] password, string userName)
{
DbAuthenticationProviderData dbAuthenticationProviderData = (DbAuthenticationProviderData)securityConfigurationView.GetAuthenticationProviderData(ConfigurationName);
bool result = false;
UserRoleManager manager = new UserRoleManager(dbAuthenticationProviderData.Database, securityConfigurationView.ConfigurationContext);
byte[] hashedPassword = manager.GetPassword(userName);
if (hashedPassword != null)
{
HashProviderFactory hashFactory = new HashProviderFactory(securityConfigurationView.ConfigurationContext);
IHashProvider hashProvider = hashFactory.CreateHashProvider(dbAuthenticationProviderData.HashProvider);
result = hashProvider.CompareHash(password, hashedPassword);
}
return result;
}
