diff options
| author | ausiv4 <ausiv4@eb105b4a-77de-11de-a249-6bf219df57d5> | 2009-08-12 17:01:23 +0000 |
|---|---|---|
| committer | ausiv4 <ausiv4@eb105b4a-77de-11de-a249-6bf219df57d5> | 2009-08-12 17:01:23 +0000 |
| commit | 124ef39cb84dec12d21a36e98039e6a5042e7317 (patch) | |
| tree | 91a0b28d2bf6b3b952d8b575a752d45193ca2d8b /django/srpproject/templates/aes.html | |
| parent | 900dc01238f0c0f6830d487d93f9176e711104fe (diff) | |
When upgrading the user from a non-srp account to an SRP account, the client must send the server the password. I wasn't happy about doing this
in plaintext, so I've incorporated slowAES on both the client and the server to encrypt the password before it is sent, using the key generated
in the first SRP transaction.
Diffstat (limited to 'django/srpproject/templates/aes.html')
| -rw-r--r-- | django/srpproject/templates/aes.html | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/django/srpproject/templates/aes.html b/django/srpproject/templates/aes.html new file mode 100644 index 0000000..dbdd4ac --- /dev/null +++ b/django/srpproject/templates/aes.html @@ -0,0 +1,69 @@ +<html> + <head> + <script src="{{ static_files }}/prng4.js"></script> + <script src="{{ static_files }}/rng.js"></script> + <script src="{{ static_files }}/jsPacker/hash.min.js"></script> + <script type="text/javascript"> + var key = cryptoHelpers.toNumbers("6754c921b8dcbd1f8b58748cd87ac60ce857314687a65df05c470a46f438842c"); + var rng = new SecureRandom(); + innerxml = function(node) + { + return node.firstChild.nodeValue; + }; + ajaxRequest = function(full_url, params, callback) + { + if( window.XMLHttpRequest) + xhr = new XMLHttpRequest(); + else if (window.ActiveXObject){ + try{ + xhr = new ActiveXObject("Microsoft.XMLHTTP"); + }catch (e){} + } + else + { + that.error_message("Ajax not supported."); + return; + } + if(xhr){ + xhr.onreadystatechange = callback; + xhr.open("POST", full_url, true); + xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); + xhr.setRequestHeader("Content-length", params.length); + xhr.setRequestHeader("Connection", "close"); + xhr.send(params); + } + else + { + that.error_message("Ajax failed."); + } + }; + function encryptDecrypt() + { + var byteMessage = cryptoHelpers.convertStringToByteArray(document.getElementById("plaintext").value); + var iv = new Array(16); + rng.nextBytes(iv); + var paddedByteMessage = slowAES.getPaddedBlock(byteMessage, 0, byteMessage.length, slowAES.modeOfOperation.OFB); + var ciphertext = slowAES.encrypt(paddedByteMessage, slowAES.modeOfOperation.OFB, key, key.length, iv).cipher; + var sendstring = cryptoHelpers.base64.encode(iv.concat(ciphertext)); + while(sendstring.indexOf("+",0) > -1) + sendstring = sendstring.replace("+", "_"); + ajaxRequest("http://home.ausiv.com:85/srp/aes/post/", "c="+sendstring+"&l="+byteMessage.length, displayText); + + }; + function displayText() + { + if(xhr.readyState == 4 && xhr.status == 200) { + if(xhr.responseXML.getElementsByTagName("P").length > 0) + document.getElementById("output").value = innerxml(xhr.responseXML.getElementsByTagName("P")[0]); + else if(xhr.responseXML.getElementsByTagName("error").length > 0) + alert(innerxml(xhr.responseXML.getElementsByTagName("error")[0])); + } + }; + </script> + </head> + <body> + <input type="text" id="plaintext"/> + <input type="button" value="Send Encrypted Text" onclick="javascript:encryptDecrypt();"/> + <input type="text" id="output"/> + </body> +</html> |