PHP Encrypt and Windows Decrypt

Question

I \'m stuck. It seems that AES encryption done by PHP cannot be decrypted in windows.

PHP code:

$encrypted = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL         


        

Answer 1

See below URL

Encrypt in PHP, Decrypt in C# (WP7 / Silverlight) using AES / Rijndael

http://pumka.net/2009/12/16/rsa-encryption-cplusplus-delphi-cryptoapi-php-openssl-2/

http://www.developer.nokia.com/Community/Wiki/Encrypt-Decrypt_contacts_database_entries_using_Symbian_C%2B%2B

Read it

I droped the MD5 crap out of PHP and C#, and they are now working properly.

Just in case you dropped here looking for the same answer, here is a sample code. Don't forget to make your own key and iv (although those bellow will work, is not recommended to use!)

PHP:

function encrypt128($message) {

    $vector = "0000000000000000";
    $key = "00000000000000000000000000000000";

    $block = mcrypt_get_block_size('rijndael_128', 'cbc');
    $pad = $block - (strlen($message) % $block);
    $message .= str_repeat(chr($pad), $pad);

    $cipher = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', 'cbc', '');
    mcrypt_generic_init($cipher, $key, $vector);
    $result = mcrypt_generic($cipher, $message);
    mcrypt_generic_deinit($cipher);

    return base64_encode($result);
}

C++

Encrypt-Decrypt contacts database entries using Symbian C++

http://www.developer.nokia.com/Community/Wiki/Encrypt-Decrypt_contacts_database_entries_using_Symbian_C%2B%2B

Headers Required:

#include  // CContactDatabse, 
#include  //CContactItem,CContactItemFieldSet

http://www.developer.nokia.com/Community/Wiki/Encrypt-Decrypt_contacts_database_entries_using_Symbian_C%2B%2B

Encrypt Contact Fields

void CEncryptContactContainer::EncryptAll()
{
    CContactDatabase *contactDB = CContactDatabase::OpenL();
    CleanupStack::PushL(contactDB);

    TContactIter iter(*contactDB);
    TContactItemId aContactId;

//Developer can take Heap based descriptor for large/unknown size of contact items.
    TBuf16<70> aValue; 

    const CContactIdArray* contactArray = contactDB->SortedItemsL();

    TInt cnt=contactArray->Count();

    for(TInt i=0;iOpenContactL((*contactArray)[i]);
        CleanupStack::PushL(contactItem);

        CContactItemFieldSet& fieldSet= contactItem->CardFields();
        TInt fieldCount=fieldSet.Count(); // This will give number of contact fields.

        for(TInt index=0; index < fieldCount; index++)
        {
            CContactItemField& field = fieldSet[index];
            const CContentType& type = field.ContentType();
            if(!(type.ContainsFieldType(KUidContactFieldBirthday)))
            {
                TPtrC name = contactItem->CardFields()[index].TextStorage()->Text();
                aValue.Copy(name);
                Encrypt(aValue); // Call real encyption here
                contactItem->CardFields()[index].TextStorage()->SetTextL(aValue);
            }
        } //Inner for loop ends here
        contactDB->CommitContactL(*contactItem);
        CleanupStack::PopAndDestroy(contactItem);
    } //Outer for loop ends here
    CleanupStack::PopAndDestroy(contactDB);
}

void CEncryptContactContainer:: Encrypt (TDes& aValue)
{
    for(TInt iCount=0; iCount< aValue.Length();iCount++)
    {
        aValue[iCount]+=3;
    }
}

Decrypt Contact Fields

void CEncryptContactContainer::DecryptAll()
{
    CContactDatabase *contactDB = CContactDatabase::OpenL();
    CleanupStack::PushL(contactDB);

    TContactIter iter(*contactDB);
    TContactItemId aContactId;
    TBuf16<70> aValue;

    const CContactIdArray* contactArray = contactDB->SortedItemsL();

    TInt cnt=contactArray->Count();

    for(TInt i=0;iOpenContactL((*contactArray)[i]);
        CleanupStack::PushL(contactItem);

        CContactItemFieldSet& fieldSet= contactItem->CardFields();
        TInt fieldCount=fieldSet.Count(); // This will give number of contact fields.

        for(TInt index=0; index < fieldCount; index++)
        {
            CContactItemField& field = fieldSet[index];
            const CContentType& type = field.ContentType();
            if(!(type.ContainsFieldType(KUidContactFieldBirthday)))
            {
                TPtrC name = contactItem->CardFields()[index].TextStorage()->Text();
                aValue.Copy(name);
                Decrypt(aValue);
                contactItem->CardFields()[index].TextStorage()->SetTextL(aValue);
            }
        } //Inner for loop ends here
        contactDB->CommitContactL(*contactItem);
        CleanupStack::PopAndDestroy(contactItem);
    } //Outer for loop ends here
    CleanupStack::PopAndDestroy(contactDB);
}

void CEncryptContactContainer:: Decrypt (TDes& aValue)
{
    for(TInt iCount=0; iCount< aValue.Length();iCount++)
    {
        aValue[iCount]-=3;
    }
}

C#:

byte[] cripted = EncryptStringToBytes("Test", System.Text.Encoding.UTF8.GetBytes("00000000000000000000000000000000"), System.Text.Encoding.UTF8.GetBytes("0000000000000000"));