How to encrypt & decrypt a text ?

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using MBSecurity how can I encrypt & decrypt a text ?

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To encrypt and decrypt a text use : MBSecurity.MBString static class.

Example 1 : Encrypt a text using your custom Key

string S = "Welcome to MB Security";

//Encrypt string
var EncryptedData = new MBSecurity.StrEncryptionModel();
EncryptedData = MBSecurity.MBString.Encrypt( S , "ImTheKey" );

//Get the encrypted string and used key
string Encrypted_String = EncryptedData.EncryptedText;
string Encrypted_Key = EncryptedData.Key;

Console.WriteLine( $"Encrypted text : {Encrypted_String}" );
Console.WriteLine( $"Encrypted key : { Encrypted_Key}" );

Notes :

• The data types returned to EncryptedData variable is MBSecurity.StrEncryptionModel
• The Key property contains the key used in the encryption
• The Key after the encryption will be encrypted

Example 2 : Encrypt a text without Key and IV

• To encrypt a string value without using Key andIVuse the
• MBSecurity.MBString.EncryptWithoutKey static method.
• This method doesn’t need any Key or IV to encrypt data.

string S = "Welcome to MB Security";

//Encrypt string
var EncryptedData = MBSecurity.MBString.EncryptWithoutKey(S);

//Get the encrypted string
string Encrypted_String = EncryptedData.EncryptedText;

Console.WriteLine( $"Encrypted text : {Encrypted_String}" );

Notes :

• If you encrypt data using EncryptWithoutKey method, you should use DecryptWithoutKey method for decryption.

Example 3 : Decrypt an encrypted text

1st case( Encrypt & Decrypt using your custom Key and IV ) :

 byte[] MyIV = new Byte[] {12, 6, 3, 2, 89, 3, 1, 23, 43};
            string S    = "Welcome to MB Security";

            //Encrypt string
            var EncryptedData = MBSecurity.MBString.Encrypt(S, "MyKey123", MyIV);

            //Decrypt the encrypted string
            var DecryptedData = MBSecurity.MBString.Decrypt(EncryptedData.EncryptedText, EncryptedData.Key, MyIV);

            Console.WriteLine( $"Encrypted text : {EncryptedData.EncryptedText}" );
            Console.WriteLine( $"Decrypted the encrypted text : {DecryptedData.DecryptedText}" );

2nd case( Encrypt & Decrypt using your custom Key ) :

string S = "Welcome to MB Security";

//Encrypt string
var EncryptedData = MBSecurity.MBString.Encrypt(S, "MyKey123");

//Decrypt the encrypted string
var DecryptedData = MBSecurity.MBString.Decrypt(EncryptedData.EncryptedText, EncryptedData.Key);

Console.WriteLine( $"Encrypted text : {EncryptedData.EncryptedText}" );
Console.WriteLine( $"Decrypted the encrypted text : {DecryptedData.DecryptedText}" );

3rd case( Encrypt & Decrypt without Key or IV ) :

string S = "Welcome to MB Security";

//Encrypt string
var EncryptedData = MBSecurity.MBString.EncryptWithoutKey(S);

//Decrypt the encrypted string
var DecryptedData =MBSecurity.MBString.DecryptWithoutKey(EncryptedData.EncryptedText);

Console.WriteLine( $"Encrypted text : {EncryptedData.EncryptedText}" );
Console.WriteLine( $"Decrypted the encrypted text : {DecryptedData.DecryptedText}" );

Notes :

• The data types returned to DecryptedData variable is MBSecurity.StrDecryptionModel
• The Key property contains the key used in the encryption and decryption
• The Key after the decryption will be encrypted

Important Notes :

• if you used a key and IV for encryption, you should use the encrypted key after encryption and the same IV
• if you used a key for encryption, you should use the encrypted key after encryption
• if you used EncryptWithoutKey method for encryption, you should use DecryptWithoutKeykey for decryption