public Identicon(string userName, IdenticonUtils.EncryptionTypeEnum encryptionType, int size, int rounds, string salt, int quality)
{
this.userName = userName;
this.size = size;
this.quality = quality;
InitalizeHash(encryptionType, rounds, salt);
}
private void InitalizeHash(IdenticonUtils.EncryptionTypeEnum encryptionType, int rounds, string salt)
{
//https://crypto.stackexchange.com/questions/12795/why-do-i-need-to-add-the-original-salt-to-each-hash-iteration-of-a-password
//Salting is best if done once not during every iteration.
finalizedHash = !(string.IsNullOrEmpty(salt)) ? userName + salt : userName;
if (rounds > 0)
{
for (int i = 0; i < rounds; i++)
{
finalizedHash = GenerateHash(finalizedHash, encryptionType);
}
}
else
{
finalizedHash = GenerateHash(finalizedHash, encryptionType);
}
shaMatrix = GetBooleanMatrix(finalizedHash, size);
}
private string GenerateHash(string inputString, IdenticonUtils.EncryptionTypeEnum encryptionType)
{
switch (encryptionType)
{
case IdenticonUtils.EncryptionTypeEnum.MD5:
return(GetMD5Hash(inputString));
case IdenticonUtils.EncryptionTypeEnum.SHA_1:
return(GetSHA1Hash(inputString));
case IdenticonUtils.EncryptionTypeEnum.SHA_256:
return(GetSHA256Hash(inputString));
case IdenticonUtils.EncryptionTypeEnum.SHA_384:
return(GetSHA384Hash(inputString));
case IdenticonUtils.EncryptionTypeEnum.SHA_512:
return(GetSHA512Hash(inputString));
default:
throw new ArgumentException($"ERROR: Unspecified Hash Algorithm '{encryptionType}'", nameof(encryptionType));
}
}
private void SHA512_Checked(object sender, RoutedEventArgs e)
{
encryptionType = IdenticonUtils.EncryptionTypeEnum.SHA_512;
UpdateIdenticon();
}
private void MD5_Checked(object sender, RoutedEventArgs e)
{
encryptionType = IdenticonUtils.EncryptionTypeEnum.MD5;
UpdateIdenticon();
}
