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Basic implementation of AES encryption/decryption and respective OSSL functions

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Add methods:
+ private static string AESEncryptString(string secret, string plainText, string ivString= null)
AES Encrypt a string using a password and a random or custom Initialization Vector.

+ private static string AESDecryptString(string secret, string encryptedText, string ivString= null)
AES Decrypt the string encrypted by AESEncryptString with the same password and ivString used in the encryption.

Methods implementations:
+ Util.AESEncrypt(string secret, string plainText)
+ Util.AESDecrypt(string secret, string encryptedText)
+Util.AESEncryptTo(string secret, string plainText, string ivString)
+ Util.AESDecryptFrom(string secret, string encryptedText, string ivString)

OSSL functions as first case of use:
+ osAESEncrypt(string secret, string plainText)
+ osAESDecrypt(string secret, string encryptedText)
+ osAESEncryptTo(string secret, string plainText, string ivString)
+ osAESDecryptFrom(string secret, string encryptedText, string ivString)

LSL script example:
<pre><code>
string plainText = "Hello World :)";
string secret = "#!qUeRtY$@123^456€!#";

default
{
    touch_start(integer i)
    {
        string encryptedText = osAESEncrypt(secret, plainText);
        llOwnerSay("\nEncrypted with osAESEncrypt:\n"+ encryptedText);
        string decryptedText = osAESDecrypt(secret, encryptedText);
        llOwnerSay("\nDecrypted with osAESDecrypt:\n"+ decryptedText);

        // Encription / Decription with custom Initialization Vector.
        string ivString = (string)llGetOwner() /* +"_"+ llGenerateKey() */;
        string encryptedToText = osAESEncryptTo(secret, plainText, ivString);
        llOwnerSay("\nEncrypted with osAESEncryptTo:\n"+ encryptedToText);
        string decryptedFromText = osAESDecryptFrom(secret, encryptedToText, ivString);
        llOwnerSay("\nDecrypted with osAESDecryptFrom:\n"+ decryptedFromText);
    }
}
</code></pre>

Web Rain :)
This commit is contained in:
Adil El Farissi
2024-02-23 21:14:33 +00:00
parent 35a40ada77
commit db80781e7d
5 changed files with 233 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
View File

@@ -617,5 +617,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
LSL_Integer osGetPrimCount(LSL_Key object_id);
LSL_Integer osGetSittingAvatarsCount();
LSL_Integer osGetSittingAvatarsCount(LSL_Key object_id);
LSL_String osAESEncrypt(string secret, string plainText);
LSL_String osAESEncryptTo(string secret, string plainText, string ivString);
LSL_String osAESDecrypt(string secret, string encryptedText);
LSL_String osAESDecryptFrom(string secret, string encryptedText, string ivString);
}
}