My configuration audio "output" is only numerique and I would like listen to audio by integrated loudspeaker. I can't use the keys "sound on my computer. If I click on I have a icon "forbiden". Can you help me
my configuration audio "output" is only numerique and I would like listen to audio by integrated loudspeaker. I can't use the keys "sound on my computer. If I click on I have a icon "forbiden". Can you help me
Si vous tappez sûr le cle <<option>> et cliquez vôtre souris de l'icon de haut-parleur
de le haut partie de sa Desktop, vous pouvez voir les choix pour le son: les haut-parleurs internales, Line out et Digital Out. C'est tout ! Ou cliquez de la Pomme a gauche, choissisez Préferences, et Son, et voila..... le meme chose.....
Merci d'avoir choisi Apple
John B
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I would remove Reader and repair or reinstall Acrobat.
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Dear all,
Can i use the key figure total delivery time in days in rows and how is can.but all the key figures r used in rows but i cannot use in column.i want bothin rows and in column at a time ,can this is possible,and how.Hi,
yes you can.You will have to use structure in the row.
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**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem. -
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How Can i use the key file Generated by RSACryptoServiceProvider to encrypt with php?
I need to be able to encrypt data in PHP using a public key generate by .NET(RSACryptoServiceProvider). I will then decrypt the data later in C# using the private key.
Code Snippet
<RSAKeyValue><Modulus>xU5JyaPNDKXI/h/uo5Vk89wZSz3zsB1+c+1IMYIQa+mCmuRCRPuoBI7ODSV2ndP6grfhdrWEzhpZtkI3SThbBh/3t+tfZ2PF8Iyv9ECN07V64nPCiJGhAnfENE+J9UD9Kw5czXHgZcBbpM5N0VfXmLSleaS65DDoNPtoStVy7ss=</Modulus><Exponent>AQAB</Exponent><P>4ScAjVrPZii/6lICAP2yDQiNEmNL74+5AcxNVDI0IombfDPIygrqEWmuDu0pngApQak7XnEnLbaDChILFiHPZQ==</P><Q>4FaYlse+cjrlPD/jk+GsTJeuP7yuQx8ztjVnQWVh6GKQP+uk1dAl6kcZOfLNR6LWwE3CSygt8PthTEw96Zbabw==</Q><DP>XvXtNLE9UjATqYeHEtXtV7Pok/3PVC3A8PIzFzTJaluxeXP51sU9rbRt1hvO9rXIsMnooU+GH7Cfmgq8JEyERQ==</DP><DQ>HXkC/vwq9xLpvuqd2XXSjxV2XQVK16Knxo5pjFvnawJX9S3eMADymj7Q/534firUj9snZXxX3MsJ015I3AFnnQ==</DQ><InverseQ>AM0fVCE3n2FKf2zb3CcDEge1Ko35VvMEL+LXgR87QwO2HScZSuLevGLi2SSAkB1vu8RSNzB028SZReeOZWnq4Q==</InverseQ><D>fI+GKdRNOTTYhQZnw8Im74T+OvArjf2wvUMJlqfD8jyDBYIhDCfL1MTK9KW4Er+moSuxHR5Pb0ZXaKa4/HKlk0aJ1jB2C+jg7zTSuPRNuS16BpVHaJYsQurCwZwElXMum+GxeXK/h3wXWq5HwebjqZr0aLUMZKRcweDPRoVFiRE=</D></RSAKeyValue>
As you see this code snippet is a xml format private key. at .net platform,which can use encrypt or dencrypt.
i have try the Extension Crypt RSA ( http://pear.php.net/reference/Crypt_RSA-1.0.0/elementindex_Crypt_RSA.html ) to help me encrypt data by php.but it haven't return a currect result. the data encrypted by php cann't dencrypt by c#.
does the RSA algorithm provider by Crypt_RSA can give a stand result as c#?
BTW :i just use the xmlkeystring like this.
Code Snippet
<?php
require_once("Crypt/RSA.php");
require_once("includes/Utils.class.php");
$public_key_string = simplexml_load_string("<RSAKeyValue><Modulus>xU5JyaPNDKXI/h/uo5Vk89wZSz3zsB1+c+1IMYIQa+mCmuRCRPuoBI7ODSV2ndP6grfhdrWEzhpZtkI3SThbBh/3t+tfZ2PF8Iyv9ECN07V64nPCiJGhAnfENE+J9UD9Kw5czXHgZcBbpM5N0VfXmLSleaS65DDoNPtoStVy7ss=</Modulus><Exponent>AQAB</Exponent><P>4ScAjVrPZii/6lICAP2yDQiNEmNL74+5AcxNVDI0IombfDPIygrqEWmuDu0pngApQak7XnEnLbaDChILFiHPZQ==</P><Q>4FaYlse+cjrlPD/jk+GsTJeuP7yuQx8ztjVnQWVh6GKQP+uk1dAl6kcZOfLNR6LWwE3CSygt8PthTEw96Zbabw==</Q><DP>XvXtNLE9UjATqYeHEtXtV7Pok/3PVC3A8PIzFzTJaluxeXP51sU9rbRt1hvO9rXIsMnooU+GH7Cfmgq8JEyERQ==</DP><DQ>HXkC/vwq9xLpvuqd2XXSjxV2XQVK16Knxo5pjFvnawJX9S3eMADymj7Q/534firUj9snZXxX3MsJ015I3AFnnQ==</DQ><InverseQ>AM0fVCE3n2FKf2zb3CcDEge1Ko35VvMEL+LXgR87QwO2HScZSuLevGLi2SSAkB1vu8RSNzB028SZReeOZWnq4Q==</InverseQ><D>fI+GKdRNOTTYhQZnw8Im74T+OvArjf2wvUMJlqfD8jyDBYIhDCfL1MTK9KW4Er+moSuxHR5Pb0ZXaKa4/HKlk0aJ1jB2C+jg7zTSuPRNuS16BpVHaJYsQurCwZwElXMum+GxeXK/h3wXWq5HwebjqZr0aLUMZKRcweDPRoVFiRE=</D></RSAKeyValue>");
$key =new Crypt_RSA_Key(base64_decode($public_key_string->Modulus),base64_decode($public_key_string->Exponent),"public");
echo "<pre>";
print_r($key);
echo "</pre>";
$rsa_obj = new Crypt_RSA();
//try encrypt data
echo "encrypted result is:<br/>".$rsa_obj->encrypt("this is a smple text.",$key)
?>
but the encrypted data cann't decrypt by c#?where is the problem?what should i do with php codes?thank you for your reply, i also found this article by google.but this does not meet scene, thank you all the same.
i have already solved the problem now,i'd like to post the Solution .infact it's so easy to use rsakey file generated by .net .
-------------rsa.class.php-------------------
Code Snippet
<?php
* Some constants
define("BCCOMP_LARGER", 1);
class RSA
* PHP implementation of the RSA algorithm
* (C) Copyright 2004 Edsko de Vries, Ireland
* Licensed under the GNU Public License (GPL)
* This implementation has been verified against [3]
* (tested Java/PHP interoperability).
* References:
* [1] "Applied Cryptography", Bruce Schneier, John Wiley & Sons, 1996
* [2] "Prime Number Hide-and-Seek", Brian Raiter, Muppetlabs (online)
* [3] "The Bouncy Castle Crypto Package", Legion of the Bouncy Castle,
* (open source cryptography library for Java, online)
* [4] "PKCS #1: RSA Encryption Standard", RSA Laboratories Technical Note,
* version 1.5, revised November 1, 1993
* Functions that are meant to be used by the user of this PHP module.
* Notes:
* - $key and $modulus should be numbers in (decimal) string format
* - $message is expected to be binary data
* - $keylength should be a multiple of 8, and should be in bits
* - For rsa_encrypt/rsa_sign, the length of $message should not exceed
* ($keylength / 8) - 11 (as mandated by [4]).
* - rsa_encrypt and rsa_sign will automatically add padding to the message.
* For rsa_encrypt, this padding will consist of random values; for rsa_sign,
* padding will consist of the appropriate number of 0xFF values (see [4])
* - rsa_decrypt and rsa_verify will automatically remove message padding.
* - Blocks for decoding (rsa_decrypt, rsa_verify) should be exactly
* ($keylength / 8) bytes long.
* - rsa_encrypt and rsa_verify expect a public key; rsa_decrypt and rsa_sign
* expect a private key.
* rsa encrypt data
* @param binary string $message
* @param unknown_type $public_key
* @param numbers $modulus
* @param numbers $keylength
* @return binary data
function rsa_encrypt($message, $public_key, $modulus, $keylength)
$padded = RSA::add_PKCS1_padding($message, true, $keylength / 8);
$number = RSA::binary_to_number($padded);
$encrypted = RSA::pow_mod($number, $public_key, $modulus);
$result = RSA::number_to_binary($encrypted, $keylength / 8);
return $result;
function rsa_decrypt($message, $private_key, $modulus, $keylength)
$number = RSA::binary_to_number($message);
$decrypted = RSA::pow_mod($number, $private_key, $modulus);
$result = RSA::number_to_binary($decrypted, $keylength / 8);
return RSA::remove_PKCS1_padding($result, $keylength / 8);
function rsa_sign($message, $private_key, $modulus, $keylength)
$padded = RSA::add_PKCS1_padding($message, false, $keylength / 8);
$number = RSA::binary_to_number($padded);
$signed = RSA::pow_mod($number, $private_key, $modulus);
$result = RSA::number_to_binary($signed, $keylength / 8);
return $result;
function rsa_verify($message, $public_key, $modulus, $keylength)
return RSA::rsa_decrypt($message, $public_key, $modulus, $keylength);
function rsa_kyp_verify($message, $public_key, $modulus, $keylength)
$number = RSA::binary_to_number($message);
$decrypted = RSA::pow_mod($number, $public_key, $modulus);
$result = RSA::number_to_binary($decrypted, $keylength / 8);
return RSA::remove_KYP_padding($result, $keylength / 8);
* The actual implementation.
* Requires BCMath support in PHP (compile with --enable-bcmath)
// Calculate (p ^ q) mod r
// We need some trickery to [2]:
// (a) Avoid calculating (p ^ q) before (p ^ q) mod r, because for typical RSA
// applications, (p ^ q) is going to be _WAY_ too large.
// (I mean, __WAY__ too large - won't fit in your computer's memory.)
// (b) Still be reasonably efficient.
// We assume p, q and r are all positive, and that r is non-zero.
// Note that the more simple algorithm of multiplying $p by itself $q times, and
// applying "mod $r" at every step is also valid, but is O($q), whereas this
// algorithm is O(log $q). Big difference.
// As far as I can see, the algorithm I use is optimal; there is no redundancy
// in the calculation of the partial results.
function pow_mod($p, $q, $r)
// Extract powers of 2 from $q
$factors = array();
$div = $q;
$power_of_two = 0;
while(bccomp($div, "0") == BCCOMP_LARGER)
$rem = bcmod($div, 2);
$div = bcdiv($div, 2);
if($rem) array_push($factors, $power_of_two);
$power_of_two++;
// Calculate partial results for each factor, using each partial result as a
// starting point for the next. This depends of the factors of two being
// generated in increasing order.
$partial_results = array();
$part_res = $p;
$idx = 0;
foreach($factors as $factor)
while($idx < $factor)
$part_res = bcpow($part_res, "2");
$part_res = bcmod($part_res, $r);
$idx++;
array_push($partial_results, $part_res);
// Calculate final result
$result = "1";
foreach($partial_results as $part_res)
$result = bcmul($result, $part_res);
$result = bcmod($result, $r);
return $result;
// Function to add padding to a decrypted string
// We need to know if this is a private or a public key operation [4]
function add_PKCS1_padding($data, $isPublicKey, $blocksize)
$pad_length = $blocksize - 3 - strlen($data);
if($isPublicKey)
$block_type = "\x02";
$padding = "";
for($i = 0; $i < $pad_length; $i++)
$rnd = mt_rand(1, 255);
$padding .= chr($rnd);
else
$block_type = "\x01";
$padding = str_repeat("\xFF", $pad_length);
return "\x00" . $block_type . $padding . "\x00" . $data;
// Remove padding from a decrypted string
// See [4] for more details.
function remove_PKCS1_padding($data, $blocksize)
assert(strlen($data) == $blocksize);
$data = substr($data, 1);
// We cannot deal with block type 0
if($data{0} == '\0')
die("Block type 0 not implemented.");
// Then the block type must be 1 or 2
assert(($data{0} == "\x01") || ($data{0} == "\x02"));
// Remove the padding
$offset = strpos($data, "\0", 1);
return substr($data, $offset + 1);
// Remove "kyp" padding
// (Non standard)
function remove_KYP_padding($data, $blocksize)
assert(strlen($data) == $blocksize);
$offset = strpos($data, "\0");
return substr($data, 0, $offset);
// Convert binary data to a decimal number
function binary_to_number($data)
$base = "256";
$radix = "1";
$result = "0";
for($i = strlen($data) - 1; $i >= 0; $i--)
$digit = ord($data{$i});
$part_res = bcmul($digit, $radix);
$result = bcadd($result, $part_res);
$radix = bcmul($radix, $base);
return $result;
// Convert a number back into binary form
function number_to_binary($number, $blocksize)
$base = "256";
$result = "";
$div = $number;
while($div > 0)
$mod = bcmod($div, $base);
$div = bcdiv($div, $base);
$result = chr($mod) . $result;
return str_pad($result, $blocksize, "\x00", STR_PAD_LEFT);
?>
-------------RSAProcessor.class.php------------------------
Code Snippet
<?php
require_once("rsa.class.php");
class RSAProcessor
private $public_key = null;
private $private_key = null;
private $modulus = null;
private $key_length = "1024";
public function __construct($xmlRsakey=null,$type=null)
$xmlObj = null;
if($xmlRsakey==null)
$xmlObj = simplexml_load_file("xmlfile/RSAKey.xml");
elseif($type==RSAKeyType::XMLFile)
$xmlObj = simplexml_load_file($xmlRsakey);
else
$xmlObj = simplexml_load_string($xmlRsakey);
$this->modulus = RSA::binary_to_number(base64_decode($xmlObj->Modulus));
$this->public_key = RSA::binary_to_number(base64_decode($xmlObj->Exponent));
$this->key_length = strlen(base64_decode($xmlObj->Modulus))*8;
* get public key
* @return string public key
public function getPublicKey()
//return base64_encode(RSA::number_to_binary($this->public_key,($this->key_length)/8));
return $this->public_key;
public function getPrivateKey()
//return base64_encode(RSA::number_to_binary($this->private_key,($this->key_length)/8));
return $this->private_key;
public function getKeyLength()
return $this->key_length;
public function getModulus()
return $this->modulus;
* encrypt data
* @param string $data
* @return base64 encoded binary string
public function encrypt($data)
return base64_encode(RSA::rsa_encrypt($data,$this->public_key,$this->modulus,$this->key_length));
public function dencrypt($data)
return RSA::rsa_decrypt($data,$this->private_key,$this->modulus,$this->key_length);
public function sign($data)
return RSA::rsa_sign($data,$this->private_key,$this->modulus,$this->key_length);
public function verify($data)
return RSA::rsa_verify($data,$this->public_key,$this->modulus,$this->key_length);
class RSAKeyType
const XMLFile = 0;
const XMLString = 1;
?>
-------------- encrypt data with public key-----------------
Code Snippet
<?php
require_once("RSAProcessor.class.php");
$processor = new RSAProcessor
("<RSAKeyValue><Modulus>m6ljoeWhmnd0oRnsVEH5iNw3B8+vKVu7v7CVfMyf6bnKEzHa62TRmT/baJiSevoI/vgm2ph/s1JrQQTaGiErHicigwSC
Aw7+i05WFbnz7tOyiiJJVMfsdd+v7Xan9Hiud05FzxoMbM8vpiMHPEIDbGJ1MiXyupTVkz2WcMHyBoJ4S189opktZ43pviUhy0PeuWkyoU7zR54akPmK
Yg+z5Zr1r7K8lUZ1a3TThfJGxTQR/uZMtZz/q8QF0AANVQ/eyahTv9icBzBoDuncS0Y5l3vqogW1C/ltJvhJpvSn/OgjbRjuixCAptOUmRd13sDWU95/
x0bMq+Lg68lj2OjJ1Q==</Modulus><Exponent>AQAB</Exponent><P>zfvdBsMLlmo+4PAUYLgSV2xyyVa7ZqFjkJaAE4EbYuH24EoZjrzeiJR++D
FUT/GUhjfZ5eZ/5e29dXwk0sKUw6nHzBdBtOPp5fr4t5SKLEcWY+J+zLUSOlhG9NUkohFf6+Miy2Y7BLpXVrcl6UwXV0ak8KkTPB2l/aIMwYj5dgc=</
P><Q>wXV0sA3nDzoSDQA/4QSu/WIlBhkA3jZ7K7G9Z9rpP1A0vH+bZeyCIyo52u8ahGuYbubaizF1XMp+Xv3Mh2KmRbt7+UptwEwbFAUiiad2a312mqm
j7IJd7gRjGkyzKEm+6fpNeY3NFLNVNhccBqzhNkRoM22xnvQcImD10XVAakM=</Q><DP>wd1HdCLEWCfc0DYE59a2pINUMXyo2foRTDbpifHcRZ+ojAY
Rsc6+nsssCQnccXVMNVqBgSgEvfGYe+eAfMBX5SN5APPuioJrVGF2DsoFlZC+WPoGH0JYSoNlHO8yEDrMDaXzzH2GFHgQ1XOAged0nFbHzB1FFjJNVL5
cxRXWu6c=</DP><DQ>QDKuCk5SwubOXqoaiJ15RHRxPNjHRPZnYVSWOgSXKn9/QJ5H/0bA2NKGaHS4JAFgkEzjcRV0kNpRnUwztymxa6qPtWZRjWK0Ca
y6jVuZHIqB9UkeMLoCWZ3zFSMmwNPYGuUJGLFJwPjR6iU5E64C/nMs8QQR0WHIhFAQwvVZ7uk=</DQ><InverseQ>JckMSlJR10VZdnp83VPjrZ/Z+63
CGu3tWHm7f4DJ8IwjJWr8FlCpbSwiP6a4e9Upv6bUn/tOj2gY6MMq5G5yTKm2SCRvpUKRu4NCmWAt7vlFv0Z6pkXlTOpzvVjv3v16+dIZOA5Zn+v7+r1
xbdYdH20KRAbiBO3MfQP7s+VJJvM=</InverseQ><D>W1xrBr2hQOj1wgxWAgoK7IHbprEFrK+TnWmGA46SGPsbmHJ9fAVbY6fwHg7Wgmk4WHXLUCeLY
/Nu0eWIISfwh60Oe3ls2WC2k4qxyeSvQDBuLNb81U7WAUT9m9E1uK4QMCP3oxs1ybM80zTh7UMNgVK0WG+fbFUomVffcWTTqW+Fu12PEIO+UR/85oq+x
qVlTzYAEzt1OE9IhkYiRzi99ePXeH2gFltzJ/fb/7jLsDTkhM2eiYTGyOTZmBnen6c6a8b9LFTY4Bc0bGpk5ezHkub6F8p2ZgL/JgIOJMyRZICjDjs+9
k9PTmMTFsCF6xzHY15Fg25xIDYzIyx1rrRUjQ==</D></RSAKeyValue>",RSAKeyType::XMLString);
$rs = $processor->encrypt("Hello,It's Works.");
echo $rs;
?>
with the front codes.you can easy to encrypt data by public key generate by .net programe. -
Resurrect: Can I use the Key Board Shortcuts to use Commands like "Save"(Ctrl+S), "Refresh"(F5) etc?
Many months ago Simon Jones asked if it was possible to capture screen level key events and redirect them to perform functions in our screens. There was some discussion about having to get into the detail Silverlight events and a statement of the high
level of difficulty. I would like to resurrect the question and see if anyone in the community has developed a solution to this that could be applied to all screens in a solution.
Regards
CliffSimon Jones asked if it was possible to capture screen level key events and redirect them to perform functions in our screens.
I searched relevant thread you mentioned above, but I didn't find sample available. If this feature is important to you, you could submit this feature request:
https://visualstudio.uservoice.com/forums/121579-visual-studio/category/52241-lightswitch
The Visual Studio product team will give positive response about this.
Thanks for your support to Lightswitch Forums.
Best regards,
Angie
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Here is the error message I get when trying to open Portal 2 in Steam. It never actually gets to the game. I just bought it for my sons bday that I was going to show him tonight, so it has never worked yet. Any suggestions? -Joe Process: po
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Hello, I have a problem with my MacBook pro 13,3 inch A1278 I7 2.8 GHz Late 2011. I bought it at the end of 2011 and the Backlight Chip and Microphone are both unfunctionel (dead)... This laptop doesn't even have three years old... How is possible fo
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Can we go to a apple store to get the scratches on the glass removed from my daughtersipod
mydaughter has the ipod touch(newest version) and we would like to get the scratches off the glass but how and if we take it to a apple store will warranty work for it?
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Changing new page code for doctype
Hello, is it possible to change the code created for a new page when choosing the doctype? e.g. if I choose New > HTML > HTML5 I get: <!DOCTYPE HTML> <html> <head> <meta charset="UTF-8"> <title>Untitled Document</title> </head> <body> </body> </html>
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HT201272 Why should I pay again when I've lost games when I up dated
Why should I pay again when I've lost games when I up dated