triadaswing.blogg.se - Cryptext decoder

#Cryptext decoder code
#Cryptext decoder password

By pressing the button OK you will have the correct text converted.

If the translation isn't successful (still the text is not in Cyrillic but in the same or other unintelligible characters), you can choose from the newly created select-listbox the variant that is in Cyrillic (if there are more than one, select the longest).

If the translation is successful, you will see the text in Cyrillic characters and will be able to copy it and save it if it's important.

The program will try to decode the text and will print the result below.

The first few words will be analyzed so they should be (scrambled) in supposed Cyrillic.

Paste the text to decode in the big text area.

This program will try to guess the encoding, and if it does not, it will show samples, examples of all encoding-combinations, so as you will be able to select the good one. You may find this site useful, if you have recieved some texts that you believe are written in the Cyrillic alphabet, but instead are displayed in some strange combination of bizarre characters. or write custom functions you can use (invoice available). The resulting text will be displayed here.įor a small fee I can help you quickly recode/recover large pieces of data - texts, databases, websites. When you test the application, notice that it will not decrypt the data if you provide the wrong password.Place here the text to be decoded (max : 100 kB) :

#Cryptext decoder code

MsgBox("The data could not be decrypted with the password.")Īdd user interface code to call the TestEncoding and TestDecoding methods. MsgBox("The plain text is: " & plainText)Ĭatch ex As

#Cryptext decoder password

' DecryptData throws if the wrong password is used.ĭim plainText As String = wrapper.DecryptData(cipherText) Sub TestDecoding()ĭim cipherText As String = My.( My. &Īdd a method that reads the encrypted string from the user's My Documents folder and decrypts the string with the wrapper's DecryptData method. MsgBox("The cipher text is: " & cipherText) Sub TestEncoding()ĭim plainText As String = InputBox("Enter the plain text:")ĭim password As String = InputBox("Enter the password:")ĭim cipherText As String = wrapper.EncryptData(plainText) In a separate class, add a method that uses the wrapper's EncryptData method to encrypt a string and write it to the user's My Documents folder. In this example, it is used to securely store private user data in a publicly accessible text file. The wrapper class can now be used to protect user assets. ' Convert the plaintext stream to a string. ' Create the decoder to write to the stream.ĭecStream.Write(encryptedBytes, 0, encryptedBytes.Length) ' Convert the encrypted text string to a byte array.ĭim encryptedBytes() As Byte = Convert.FromBase64String(encryptedtext) Return Convert.ToBase64String(ms.ToArray)Īdd a public method that decrypts a string. ' Convert the encrypted stream to a printable string. ' Use the crypto stream to write the byte array to the stream.ĮncStream.Write(plaintextBytes, 0, plaintextBytes.Length) ' Create the encoder to write to the stream. ' Convert the plaintext string to a byte array. TripleDes.IV = TruncateHash("", TripleDes.BlockSize \ 8)Īdd a public method that encrypts a string. TripleDes.Key = TruncateHash(key, TripleDes.KeySize \ 8) The key parameter controls the EncryptData and DecryptData methods. GetBytes(key)ĭim hash() As Byte = sha1.ComputeHash(keyBytes)Īdd a constructor to initialize the 3DES cryptographic service provider. Private Function TruncateHash(ĭim sha1 As New SHA1CryptoServiceProvider Private TripleDes As New TripleDESCryptoServiceProviderĪdd a private method that creates a byte array of a specified length from the hash of the specified key.

In the Simple3Des class, add a private field to store the 3DES cryptographic service provider. Public NotInheritable Class Simple3DesĪdd an import of the cryptography namespace to the start of the file that contains the Simple3Des class. To create the encryption wrapperĬreate the Simple3Des class to encapsulate the encryption and decryption methods.

For more information, see DES and Rijndael. The Rijndael (now referred to as Advanced Encryption Standard ) and Triple Data Encryption Standard (3DES) algorithms provide greater security than DES because they are more computationally intensive.