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  • EndOfStreamException caused by spammer (c#/asp.net)

    - by maxp
    I have a contact page on my site that seems to have been latched on to by a spammer. The error itself is: System.IO.EndOfStreamException: Unable to read beyond the end of the stream. at System.IO.BinaryReader.ReadByte() at System.Web.UI.ObjectStateFormatter.DeserializeIndexedString(SerializerBinaryReader reader, Byte token) at System.Web.UI.ObjectStateFormatter.DeserializeValue(SerializerBinaryReader reader) Google turns up little. I assume they are submitting an invalid viewstate, but the exception has no line number so im stumped.

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  • Can SQLite file copied successfully on the data folder of an unrooted android device ?

    - by student
    I know that in order to access the data folder on the device, it needs to be rooted. However, if I just want to copy the database from my assets folder to the data folder on my device, will the copying process works on an unrooted phone? The following is my Database Helper class. From logcat, I can verify that the methods call to copyDataBase(), createDataBase() and openDataBase() are returned successfully. However, I got this error message android.database.sqlite.SQLiteException: no such table: TABLE_NAME: when my application is executing rawQuery. I'm suspecting the database file is not copied successfully (cannot be too sure as I do not have access to data folder), yet the method call to copyDatabase() are not throwing any exception. What could it be? Thanks. ps: My device is still unrooted, I hope it is not the main cause of the error. public DatabaseHelper(Context context) { super(context, DB_NAME, null, 1); this.myContext = context; } public void createDataBase() throws IOException{ boolean dbExist = checkDataBase(); String s = new Boolean(dbExist).toString(); Log.d("dbExist", s ); if(dbExist){ //do nothing - database already exist Log.d("createdatabase","DB exists so do nothing"); }else{ this.getReadableDatabase(); try { copyDataBase(); Log.d("copydatabase","Successful return frm method call!"); } catch (IOException e) { throw new Error("Error copying database"); } } } private boolean checkDataBase(){ File dbFile = new File(DB_PATH + DB_NAME); return dbFile.exists(); } private void copyDataBase() throws IOException{ //Open your local db as the input stream InputStream myInput = null; myInput = myContext.getAssets().open(DB_NAME); Log.d("copydatabase","InputStream successful!"); // Path to the just created empty db String outFileName = DB_PATH + DB_NAME; //Open the empty db as the output stream OutputStream myOutput = new FileOutputStream(outFileName); //transfer bytes from the inputfile to the outputfile byte[] buffer = new byte[1024]; int length; while ((length = myInput.read(buffer))>0){ myOutput.write(buffer, 0, length); } //Close the streams myOutput.flush(); myOutput.close(); myInput.close(); } public void openDataBase() throws SQLException{ //Open the database String myPath = DB_PATH + DB_NAME; myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); } /* @Override public synchronized void close() { if(myDataBase != null) myDataBase.close(); super.close(); }*/ public void close() { // NOTE: openHelper must now be a member of CallDataHelper; // you currently have it as a local in your constructor if (myDataBase != null) { myDataBase.close(); } } @Override public void onCreate(SQLiteDatabase db) { } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { } }

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  • Loading images faster in Gridview

    - by rs
    I have a gridview which displays data for all employees and their images. The images take more time to render completely when i click sort or paging or reload. I'm using httphandler to display image as stream. Is there a way i can speed up this image loading?

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  • What useful minor features of C# 4.0 can you list?

    - by sashaeve
    C# 4.0 has a lot of new major features such as dynamic type, covariance and contravariance, named arguments etc. But C# 4.0 contains new minor (but useful) changes such as TryParse method for TimeSpan, Enum, Guid data types, String.IsNullOrWhiteSpace, System.IO.Stream.CopyTo etc. What other minor and useful features of C# 4.0 can you list?

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  • Sending NSMutableArray on AsycSocket

    - by user200654
    Any one knows how to write and read NSMutableArray or Dictionary data using AsycSocket Library ? Clarification: I want a way to archive NSMuatbleArray and write this on the stream. seemed pretty forward but running in simulator I get this wierd error [NSKeyedUnarchiver initForReadingWithData:]: incomprehensible archive

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  • Automatically starting svnserve on Snow Leopard

    - by Cleggy
    Note: I originally asked this question on Server Fault (http://serverfault.com/questions/148052/automatically-starting-svnserve-on-snow-leopard), but I thought this may be a more appropriate place to ask. I have installed Subversion onto my iMac running Snow Leopard, but am having trouble getting svnserve to start up automatically. As I understand it (I'm still fairly green with OSX), the best way to do that is to utilize launchd. To that end, I have created the following .plist file in the /Library/LaunchDaemons folder. If I use launchctl to execute this file, svnserve starts as expected, but it doesn't automatically start when the system starts up or I log in. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Disabled</key> <false/> <key>Label</key> <string>org.tigris.subversion.svnserve</string> <key>UserName</key> <string>Dave</string> <key>ProgramArguments</key> <array> <string>/opt/subversion/bin/svnserve</string> <string>--inetd</string> <string>--root=/Users/Shared/SVNrep</string> </array> <key>ServiceDescription</key> <string>Subversion Standalone Server</string> <key>Sockets</key> <dict> <key>Listeners</key> <array> <dict> <key>SockFamily</key> <string>IPv4</string> <key>SockServiceName</key> <string>svn</string> <key>SockType</key> <string>stream</string> </dict> <dict> <key>SockFamily</key> <string>IPv6</string> <key>SockServiceName</key> <string>svn</string> <key>SockType</key> <string>stream</string> </dict> </array> </dict> <key>inetdCompatibility</key> <dict> <key>Wait</key> <false/> </dict> </dict> </plist> I have tried many different configs in the .plist, including auto-starting, simplifying the listeners section, removing dependence on inetd, but they all show the same symptom. The files work when started using launchctl load, but do not automatically start up svnserve if the iMac is rebooted. If anyone here could provide any suggestions as to how to get this to work, I'd really appreciate it.

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  • Automatically starting svnserve on Snow Leopard

    - by Cleggy
    I have installed Subversion onto my iMac running Snow Leopard, but am having trouble getting svnserve to start up automatically. As I understand it (I'm still fairly green with OSX), the best way to do that is to utilize launchd. To that end, I have created the following .plist file in the /Library/LaunchDaemons folder. If I use launchctl to execute this file, svnserve starts as expected, but it doesn't automatically start when the system starts up or I log in. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Disabled</key> <false/> <key>Label</key> <string>org.tigris.subversion.svnserve</string> <key>UserName</key> <string>Dave</string> <key>ProgramArguments</key> <array> <string>/opt/subversion/bin/svnserve</string> <string>--inetd</string> <string>--root=/Users/Shared/SVNrep</string> </array> <key>ServiceDescription</key> <string>Subversion Standalone Server</string> <key>Sockets</key> <dict> <key>Listeners</key> <array> <dict> <key>SockFamily</key> <string>IPv4</string> <key>SockServiceName</key> <string>svn</string> <key>SockType</key> <string>stream</string> </dict> <dict> <key>SockFamily</key> <string>IPv6</string> <key>SockServiceName</key> <string>svn</string> <key>SockType</key> <string>stream</string> </dict> </array> </dict> <key>inetdCompatibility</key> <dict> <key>Wait</key> <false/> </dict> </dict> </plist> If anyone here could provide any suggestions as to how to get this to work, I'd really appreciate it.

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  • what is best config for nginx worker_rlimit_nofile and worker_connections 28672

    - by Binh Nguyen
    i have issue of web-brower response ( especially on ie ) very slow, some time time out, and sometime hang out up to 20 seconds for one file redirect 301 when test with "f12 derverloper tool of ie" .. it report wait/start time very long. but after got connected the elements on web weill be dowload and show out fast ( test at xaluan.com ) It most happen when active user on web more than 2100 ( use google real time live analytic ). server running cenos 5 with ngix, apache, 32core cpu, 96G ram, raid 10 sas hdd.. == flowing is my config == user nobody; # no need for more workers in the proxy mode worker_processes 28; #old 32 #good at 24 error_log /var/log/nginx/error.log; #old add in end: info worker_rlimit_nofile 22528; events { worker_connections 22528; use epoll; # you should use epoll here for Linux kernels 2.6.x } http { server_name_in_redirect off; server_names_hash_max_size 10240; server_names_hash_bucket_size 1024; include mime.types; default_type application/octet-stream; server_tokens off; disable_symlinks off; sendfile on; tcp_nopush on; tcp_nodelay on; server_name_in_redirect off; server_names_hash_max_size 10240; server_names_hash_bucket_size 1024; include mime.types; default_type application/octet-stream; server_tokens off; disable_symlinks off; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 25; #old 5 gzip on; #old on gzip_vary on; gzip_disable "MSIE [1-6]\."; gzip_proxied any; gzip_http_version 1.1; gzip_min_length 1000; gzip_comp_level 6; gzip_buffers 16 8k; ignore_invalid_headers on; client_header_timeout 1m; #3m client_body_timeout 1m; #3m send_timeout 1m; #3m reset_timedout_connection on; connection_pool_size 256; client_header_buffer_size 256k; large_client_header_buffers 4 256k; client_max_body_size 100M; client_body_buffer_size 256k; request_pool_size 32k; output_buffers 4 32k; postpone_output 1460; proxy_temp_path /tmp/nginx_proxy/; client_body_in_file_only on; log_format bytes_log "$msec $bytes_sent ."; limit_conn_zone $binary_remote_addr zone=limit_per_ip:1m; limit_conn limit_per_ip 20; limit_req_zone $binary_remote_addr zone=allips:5m rate=200r/s; limit_req zone=allips burst=200 nodelay; include "/etc/nginx/vhosts/*"; } =========== I have play around with worker config 1- tried increase as some one suggess: worker_rlimit_nofile = worker_connections = worker_processes * 1024 = 32768 2- tried to set low: worker_processes = 28 and other worker at 22582 and other solution too .. but not work cause some time it make server load hight very quick 3- tried to comment out the # worker_rlimit_nofile . so it will be unlimited. it look like solved a bit about issue response time. but it also make server high load quick in peak time... Please help thanks PS: other apache you may have look for help me out thanks Listen 0.0.0.0:8081 User nobody Group nobody ExtendedStatus On ServerAdmin [email protected] ServerName server.xaluan.com LogLevel warn # These can be set in WHM under 'Apache Global Configuration' Timeout 100 TraceEnable Off ServerSignature Off ServerTokens ProductOnly FileETag None StartServers 15 <IfModule prefork.c> MinSpareServers 20 MaxSpareServers 50 #MaxSpareServers 40 </IfModule> ServerLimit 1572 MaxClients 1572 MaxRequestsPerChild 4000 # MaxRequestsPerChild 3000 KeepAlive On KeepAliveTimeout 3 MaxKeepAliveRequests 300 #MaxKeepAliveRequests 130

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  • ovs-vsctl: "eth0" is not a valid UUID

    - by Przemek Lach
    I'm trying to setup an open v-switch inside my Ubuntu 12.04 Server VM. I have created three interfaces for this VM and I want to create a port mirror inside of the VM using these there interfaces and open v-switch. There are three Host-Only Adapters: eth0, eth1, eth2. The idea is that three other VM's will be connected to these adapters. One of these VM's will stream UDP video to eth0 and I want the vswitch'd VM to mirror those packets from eth0 onto eth1 and eth2. Each of the VM's connected to eth1 and eth2 will get the same video stream. I performed the following steps to install open v-switch: $ apt-get install python-simplejson python-qt4 python-twisted-conch automake autoconf gcc uml-utilities libtool build-essential $ apt-get install build-essential autoconf automake pkg-config $ wget http://openvswitch.org/releases/openvswitch-1.7.1.tar.gz $ tar xf http://openvswitch.org/releases/openvswitch-1.7.1.tar.gz $ cd http://openvswitch.org/releases/openvswitch-1.7.1.tar.gz $ apt-get install libssl-dev iproute tcpdump linux-headers-`uname -r` $ ./boot.sh $ ./configure - -with-linux=/lib/modules/`uname -r`/build $ make $ sudo make install After installation I configured as follows: $ insmod datapath/linux/openvswitch.ko $ sudo touch /usr/local/etc/ovs-vswitchd.conf $ mkdir -p /usr/local/etc/openvswitch $ ovsdb-tool create /usr/local/etc/openvswitch/conf.db Then I started the server: $ ovsdb-server /usr/local/etc/openvswitch/conf.db \ --remote=punix:/usr/local/var/run/openvswitch/db.sock \ --remote=db:Open_vSwitch,manager_options \ --private-key=db:SSL,private_key \ --certificate=db:SSL,certificate \ --bootstrap-ca-cert=db:SSL,ca_cert --pidfile --detach --log-file $ ovs-vsctl –no-wait init (run only once) $ ovs-vswitchd --pidfile --detach The above steps I got from this tutorial and it all worked fine. I then proceeded to add a port mirror based on the open v-switch documentation under Port Mirroring. I successfully completed the following commands: $ ovs-vsctl add-br br0 $ ovs-vsctl add-port br0 eth0 $ ovs-vsctl add-port br0 eth1 $ ovs-vsctl add-port br0 eth2 $ ifconfig eth0 promisc up $ ifconfig eth1 promisc up $ ifconfig eth2 promisc up At this point when I run ovs-vsctl show I get the following: 75bda8c2-b870-438b-9115-e36288ea1cd8 Bridge "br0" Port "br0" Interface "br0" type: internal Port "eth0" Interface "eth0" Port "eth2" Interface "eth2" Port "eth1" Interface "eth1" And when I run ifconfig I get the following: eth0 Link encap:Ethernet HWaddr 08:00:27:9f:51:ca inet6 addr: fe80::a00:27ff:fe9f:51ca/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:17 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1494 (1.4 KB) TX bytes:468 (468.0 B) eth1 Link encap:Ethernet HWaddr 08:00:27:53:02:d4 inet6 addr: fe80::a00:27ff:fe53:2d4/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:17 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1494 (1.4 KB) TX bytes:468 (468.0 B) eth2 Link encap:Ethernet HWaddr 08:00:27:cb:a5:93 inet6 addr: fe80::a00:27ff:fecb:a593/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:17 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1494 (1.4 KB) TX bytes:468 (468.0 B) eth3 Link encap:Ethernet HWaddr 08:00:27:df:bb:d8 inet addr:192.168.1.139 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::a00:27ff:fedf:bbd8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2211 errors:0 dropped:0 overruns:0 frame:0 TX packets:1196 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:182987 (182.9 KB) TX bytes:125441 (125.4 KB) NOTE: I use eth3 as a bridge adapter for SSH'ing into the VM. So now, I think I've done everything correctly but when I try to create the bridge using the following command: $ ovs-vsctl -- set Bridge br0 mirrors=@m -- --id=@eth0 get Port eth0 -- --id=@eth1 get Port eth1 -- --id=@m create Mirror name=app1Mirror select-dst-port=eth0 select-src-port=@eth0 output-port=@eth1,eth2 I get the following error: ovs-vsctl: "eth0" is not a valid UUID I don't understand why it's not able to find the interfaces?

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  • Unable to either locate any wireless networks nor even connect to wifi

    - by Leo Chan
    I'm new to Linux. I currently have installed ubuntu 12.10. I had a previous problem with my wireless card (see url to see previous problem : How to enable wireless in a Fujitsu LH532?). It now shows Connect to hidden network and create new wireless network but now unfortunately it simply cannot find any wireless connections. I did have a very thorough look around about this problem such as wait a little longer since sometimes it cannot load all the wireless connections available that quickly. My wifi is a hidden network and I have used the connect to hidden network feature but it keeps asking for my wep key which has been checked 4 times (I counted) and it still seems to not work; It keeps asking for the WEP key. I did try both WEP 40/128-bit key and WPA & WPA2 since previously on my windows it worked; My family later decided to use WEP. I only have a quick fix using a usb wireless stick and I wish to have a more solid fix. Thanks Results from sudo iwlist wlan0 scan wlan0 Scan completed : Cell 01 - Address: 00:1E:73:C8:62:BD Channel:6 Frequency:2.437 GHz (Channel 6) Quality=25/70 Signal level=-85 dBm Encryption key:on ESSID:"EnigmaHome" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=000000cb3bb10a5c Extra: Last beacon: 696ms ago IE: Unknown: 000A456E69676D61486F6D65 IE: Unknown: 010482848B96 IE: Unknown: 030106 IE: Unknown: 0706484B20010B1E IE: Unknown: 2A0107 IE: Unknown: 32080C1218243048606C IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 Cell 02 - Address: C8:3A:35:34:C1:60 Channel:6 Frequency:2.437 GHz (Channel 6) Quality=22/70 Signal level=-88 dBm Encryption key:on ESSID:"Tenda" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s 18 Mb/s; 36 Mb/s; 54 Mb/s Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s Mode:Master Extra:tsf=000001336e70ffdd Extra: Last beacon: 716ms ago IE: Unknown: 000554656E6461 IE: Unknown: 010882848B961224486C IE: Unknown: 030106 IE: Unknown: 32040C183060 IE: Unknown: 0706434E20010D10 IE: Unknown: 33082001020304050607 IE: Unknown: 33082105060708090A0B IE: Unknown: DD270050F204104A0001101044000101104700102880288028801880A880C83A3534C160103C000101 IE: Unknown: 050400010000 IE: Unknown: 2A0106 IE: Unknown: 2D1AEC0117FFFF0000000000000000000000000000000C0000000000 IE: Unknown: 3D1606000500000000000000000000000000000000000000 IE: Unknown: 7F0101 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK Preauthentication Supported IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: 0B05010089127A IE: Unknown: DD1E00904C33EC0117FFFF0000000000000000000000000000000C0000000000 IE: Unknown: DD1A00904C3406000500000000000000000000000000000000000000 IE: Unknown: DD07000C4304000000 Cell 03 - Address: 00:1E:73:C8:62:BF Channel:6 Frequency:2.437 GHz (Channel 6) Quality=47/70 Signal level=-63 dBm Encryption key:on ESSID:"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=000000cb3bac614e Extra: Last beacon: 1064ms ago IE: Unknown: 00110000000000000000000000000000000000 IE: Unknown: 010482848B96 IE: Unknown: 030106 IE: Unknown: 050C010200000000000000000000 IE: Unknown: 0706484B20010B1E IE: Unknown: 2A0107 IE: Unknown: 32080C1218243048606C IE: Unknown: DD070050F202000100

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  • perl Client-SSL-Warning: Peer certificate not verified

    - by Jeremey
    I am having trouble with a perl screenscraper to an HTTPS site. In debugging, I ran the following: print $res->headers_as_string; and in the output, I have the following line: Client-SSL-Warning: Peer certificate not verified Is there a way I can auto-accept this certificate, or is that not the problem? #!/usr/bin/perl use LWP::UserAgent; use Crypt::SSLeay::CTX; use Crypt::SSLeay::Conn; use Crypt::SSLeay::X509; use LWP::Simple qw(get); my $ua = LWP::UserAgent->new; my $req = HTTP::Request->new(GET => 'https://vzw-cat.sun4.lightsurf.net/vzwcampaignadmin/'); my $res = $ua->request($req); print $res->headers_as_string; output: Cache-Control: no-cache Connection: close Date: Tue, 01 Jun 2010 19:28:08 GMT Pragma: No-cache Server: Apache Content-Type: text/html Expires: Wed, 31 Dec 1969 16:00:00 PST Client-Date: Tue, 01 Jun 2010 19:28:09 GMT Client-Peer: 64.152.68.114:443 Client-Response-Num: 1 Client-SSL-Cert-Issuer: /O=VeriSign Trust Network/OU=VeriSign, Inc./OU=VeriSign International Server CA - Class 3/OU=www.verisign.com/CPS Incorp.by Ref. LIABILITY LTD.(c)97 VeriSign Client-SSL-Cert-Subject: /C=US/ST=Massachusetts/L=Boston/O=verizon wireless/OU=TERMS OF USE AT WWW.VERISIGN.COM/RPA (C)00/CN=PSMSADMIN.VZW.COM Client-SSL-Cipher: DHE-RSA-AES256-SHA Client-SSL-Warning: Peer certificate not verified Client-Transfer-Encoding: chunked Link: <css/vtext_style.css>; rel="stylesheet"; type="text/css" Set-Cookie: JSESSIONID=DE6C99EA2F3DD1D4DF31456B94F16C90.vz3; Path=/vzwcampaignadmin; Secure Title: Verizon Wireless - Campaign Administrator

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  • Why RSA encryption can return different results with C# and Java?

    - by ActioN
    I using: c#: RSACryptoServiceProvider JAVA: KeyFactory.getInstance("RSA")+Cipher I sending public key (exponent + modulus) as byte array from java to c#. It's ok, there is the same bytes. But when i try to encrypt some data with one key in Java and c# - there is different results. Java Key Generation: KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA"); keyGen.initialize( Config.CRYPTO_KEY_NUM_BITS ); m_KeyPair = keyGen.genKeyPair(); m_PublicKey = KeyFactory.getInstance("RSA").generatePublic( newX509EncodedKeySpec(m_KeyPair.getPublic().getEncoded())); byte[] exponent = m_PublicKey.getPublicExponent().toByteArray(); byte[] modulus = m_PublicKey.getModulus().toByteArray(); // then sending... C# Key Recieve: // Recieved... m_ExternKey = new RSAParameters(); m_ExternKey.Exponent = exponent; m_ExternKey.Modulus = modulus; m_RsaExtern = new RSACryptoServiceProvider(); m_RsaExtern.ImportParameters(m_ExternKey); byte[] test = m_RsaExtern.Encrypt(bytesToEncrypt, true); and problem is that encrypted bytes is different. Thank you.

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  • SSL certificates: No Client certificate key exhange

    - by user334246
    I am trying to access a WCF web service, that is using two way SSL encryption. When I try to call the service I get a System.ServiceModel.Security.SecurityNegotiationException: Could not establish secure channel for SSL/TLS with authority 'XXX.xx'. --- System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel. I have tried activating wire shark, to see what is sent to and from the server: I see a client hello and a server hello. But there is no client response to the server hello. I was expecting a "Certificate. Client key exchange. Change cipher. Encrypted handshake Message" package, but none is sent. I'm thinking it is a problem with the certificate sent by the server, that somehow my client server does not trusy it. Here is what I have already tried: I have created the certificate, through the proper authority, though I could have made a mistake in the certificate request without knowing it. I have added the two root certificates to: trusted root certificates, trusted publishers and trusted people. I have also added the client certificate to trusted people. My colleague has succeded in establishing connection on a win 2008 server (i'm using a 2003, because it is necessary for some odd reason - don't ask). I can't see any differences in our approach, so i'm a bit lost. Any help would be greatly appreciated.

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  • Encrypt/Decrypt ECB/PKS5/Blowfish between AS3Crypto & Javax.Crypto fails with padding error

    - by BlueDude
    I have a secret key that was sent to me as a file so I can encrypt some xml data using Blowfish. How do I access the key so that I can use it with AS3Crypto? I assume I need to Embed it using the [Embed] meta tag. It's mimeType="application/octet-stream" but I'm not sure if thats right. How do I embed, then reference this file as the secret key? The xmls that I'm encrypting cannot be decrypted on the Java side. Each attempt fails with this exception: javax.crypto.BadPaddingException: Given final block not properly padded. As a bonus, if anyone has experience using the lib to work with the Java implementation and knows the ideal mode/padding/IV to use that would be awesome. Thanks! //keyFile is an embedded asset. I was given a file to use as the key var kdata:ByteArray = new keyFile() as ByteArray; //Convert orderXML to Base64 var orderData:ByteArray = Base64.decodeToByteArray(String(orderXML)); //Cipher name var cname:String = "simple-blowfish-ecb"; var pad:IPad = new PKCS5; var mode:ICipher = Crypto.getCipher(cname, kdata, pad); //not sure if this is necessary. seems to be also set in mode pad.setBlockSize(mode.getBlockSize()); mode.encrypt(orderData); var transmitXML:String = Base64.encodeByteArray(orderData); //DEBUG: Output to TextArea storePanel.statusBox.text += "\n--TRANSMIT--\n"+transmitXML;

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  • installing paramiko

    - by fixxxer
    This may sound like a repeated question on SF, but I could not find a clear answer to it, yet.So. I installed Paramiko 1.7 with "setup.py install" command and while running the demo.py program, I got this error: Traceback (most recent call last): File "C:\Documents and Settings\fixavier\Desktop\paramiko-1.7\demos\demo.py", line 33, in <module> import paramiko File "C:\Python26\lib\site-packages\paramiko\__init__.py", line 69, in <module> from transport import randpool, SecurityOptions, Transport File "C:\Python26\lib\site-packages\paramiko\transport.py", line 32, in <module> from paramiko import util File "C:\Python26\lib\site-packages\paramiko\util.py", line 31, in <module> from paramiko.common import * File "C:\Python26\lib\site-packages\paramiko\common.py", line 99, in <module> from Crypto.Util.randpool import PersistentRandomPool, RandomPool ImportError: No module named Crypto.Util.randpool I'm getting this error even after installing PyCrypto 2.1. On running test.py(which comes with the installation), I got the following error - Traceback (most recent call last): File "C:\Documents and Settings\fixavier\Desktop\pycrypto-2.0.1\pycrypto-2.0.1\test.py", line 18, in <module> from Crypto.Util import test File "C:\Documents and Settings\fixavier\Desktop\pycrypto-2.0.1\pycrypto-2.0.1\build/lib.win32-2.6\Crypto\Util\test.py", line 17, in <module> import testdata File "C:\Documents and Settings\fixavier\Desktop\pycrypto-2.0.1\pycrypto-2.0.1\test\testdata.py", line 450, in <module> from Crypto.Cipher import AES ImportError: cannot import name AES I don't have the confidence to go ahead and install AES after all this, for all I know I may get another ImportError! Please advice.Is it the way of installation thats problematic?

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  • GMail appearing to ignore Reply-To.

    - by Samuurai
    I'm using a gmail account to send emails from my website. I'm using the same account to pick up emails which are generated by the contact facility on my site. I'm using the Reply-To field to attempt to make it easier to hit reply and easily get back to people. The message comes up with the 'from' address and ignores the 'reply-to' address. Here's my header: Return-Path: <[email protected]> Received: from svr1 (ec2-79-125-266-266.eu-west-1.compute.amazonaws.com [79.125.266.266]) by mx.google.com with ESMTPS id u14sm23273123gvf.17.2010.03.10.14.33.24 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 10 Mar 2010 14:33:25 -0800 (PST) Received: from localhost ([127.0.0.1] helo=www.rds.com) by aquacouture with esmtp (Exim 4.69) (envelope-from <[email protected]>) id 1NpUSx-0001dK-JM for [email protected]; Wed, 10 Mar 2010 22:33:23 +0000 User-Agent: CodeIgniter Date: Wed, 10 Mar 2010 22:33:23 +0000 From: "New Inquiry" <[email protected]> Reply-To: "Beren" <[email protected]> To: [email protected] Subject: =?utf-8?Q?Test?= X-Sender: [email protected] X-Mailer: CodeIgniter X-Priority: 3 (Normal) Message-ID: <[email protected]> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="B_ALT_4b981e3390ccd" This is a multi-part message in MIME format. Your email application may not support this format. --B_ALT_4b981e3390ccd Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit test --B_ALT_4b981e3390ccd Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable test --B_ALT_4b981e3390ccd--

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  • python lists error

    - by mekasperasky
    #defining the magic constants p=0xb7e15163 q=0x9e3779b9 pt=list() pt1=list() ct=list() pt2=list() #pt[0]=0pt1[0]=ct[0]=pt1[1]=ct[1]=0 s=[] l=[] b=8 key=[0,0,0,0,0,0,0,0,0] w=8 t=16 def enc(c,d): for i in range(1,r): A=A+s[0] B=B+s[1] A=A^B A=str(A) B=str(B) A=A[len(B):]+A[:len(B)] B=B^A A=str(A) B=str(B) B=B[len(A):]+B[:len(B)] A=A+s[2*i] B=B+s[2*i+1] ct.append(A) ct.append(B) def denc(): for i in range(r,1): A=ct[0] B=ct[1] B=B-s[2*i+1] B=B[len(c):] + B[:len(c)] B=B^A A=A-s[2*i] A=A[:len(B)]+c[len(B):] A=A^B pt1[1]=B-S[1] pt1[0]=A-S[0] def setup(k): u=w/8 for i in range(b-1,0): l.append(l[i/u:8]+l[8:i/u]+k[i]) s.append(p) for i in range(1,t-1): s.append(s[i-1] + q) i=j=0 A=B=0 for i in range(0,3*t): A=s.append(s[i]+A+B) B=s.append(s[:3]+s[3:]) #B=l.append((l[j]+A+B)) ll=len(str(A))+len(str(B)) B=l.append(l[:ll]+l[ll:]) i=(i+1)%t j=(j+1)%t def pri(g): for k in range(0,w): print g & 0xFF #for i in range(0,b): #key[i]=ct[0]%(255-j) pt1=[raw_input()] pt1=[raw_input()] setup(key) enc(pt1,ct) denc(ct,pt2) print("key") print(key) print("plaintext") printword(pt1[0]),printword(pt1[1]) printword(ct[0]),printword(ct[1]) the list l is always going out of index though it should not . I am not able to take the length of the string A even though it is a string .Once i convert it to string i am not able to add it in s[j]+A+B. How to get around such errors and make the code more hygenic .. This is an rc5 cipher.

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  • Using MD5 to generate an encryption key from password?

    - by Charles
    I'm writing a simple program for file encryption. Mostly as an academic exercise but possibly for future serious use. All of the heavy lifting is done with third-party libraries, but putting the pieces together in a secure manner is still quite a challenge for the non-cryptographer. Basically, I've got just about everything working the way I think it should. I'm using 128-bit AES for the encryption with a 128-bit key length. I want users to be able to enter in variable-length passwords, so I decided to hash the password with MD5 and then use the hash as the key. I figured this was acceptable--the key is always supposed to be a secret, so there's no reason to worry about collision attacks. Now that I've implemented this, I ran across a couple articles indicating that this is a bad idea. My question is: why? If a good password is chosen, the cipher is supposed to be strong enough on its own to never reveal the key except via an extraordinary (read: currently infeasible) brute-force effort, right? Should I be using something like PBKDF2 to generate the key or is that just overkill for all but the most extreme cryptographic applications?

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  • SSL over TDS, SQL Server 2005 Express

    - by reuvenab
    I capture packets sent/received by Win Xp machine when connecting to SQL Server 2005 Express using TLS encryption. Server and Client exchange Hello messages Server and Client send ChangeCipherSpec message Then Server and Client server send strange message that is not described in TLS protocol What is the message and if SSL over TDS is standard compliant at all? Server side capture: 16 **SSL Handshake** 03 01 00 4a 02 ServerHello 00 00 46 03 01 4b dd 68 59 GMT 33 13 37 98 10 5d 57 9d ff 71 70 dc d6 6f 9e 2c Random[00..13] cb 96 c0 2e b3 2f 9b 74 67 05 cc 96 Random[14..27] 20 72 26 00 00 0f db 7f d9 b0 51 c2 4f cd 81 4c Session ID 3f e3 d2 d1 da 55 c0 fe 9b 56 b7 6f 70 86 fe bb Session ID 54 Session ID 00 04 Cipher Suite 00 Compression 14 03 01 00 01 01 **ChangeCipherSpec** 16 03 01 ???? Finished ??? 00 20 d0 da cc c4 36 11 43 ff 22 25 8a e1 38 2b ???? ??? 71 ce f3 59 9e 35 b0 be b2 4b 1d c5 21 21 ce 41 ???? ??? 8e 24

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  • How to encrypt/decrypt a file in Java?

    - by Petike
    Hello, I am writing a Java application which can "encrypt" and consequently "decrypt" whatever binary file. I am just a beginner in the "cryptography" area so I would like to write a very simple application for the beginning. For reading the original file, I would probably use the java.io.FileInputStream class to get the "array of bytes" byte originalBytes[] of the file. Then I would probably use some very simple cipher, for example "shift up every byte by 1" and then I would get the "encrypted" bytes byte encryptedBytes[] and let's say that I would also set a "password" for it, for example "123456789". Next, when somebody wants to "decrypt" that file, he has to enter the password ("123456789") first and after that the file could be decrypted (thus "shift down every byte by 1") and consequently saved to the output file via java.io.FileOutputStream I am just wondering how to "store" the password information to the encrypted file so that the decrypting application knows if the entered password and the "real" password equals? Probably it would be silly to add the password (for example the ASCII ordinal numbers of the password letters) to the beginning of the file (before the encrypted data). So my main question is how to store the password information to the encrypted file?

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  • Cross-Application User Authentication

    - by Chris Lieb
    We have a webapp written in .NET that uses NTLM for SSO. We are writing a new webapp in Java that will tightly integrate with the original application. Unfortunately, Java has no support for performing the server portion of NTLM authentication and the only library that I can find requires too much setup to be allowed by IT. To work around this, I came up with a remote authentication scheme to work across applications and would like your opinions on it. It does not need to be extremely secure, but at the same time not easily be broken. User is authenticated into .NET application using NTLM User clicks link that leaves .NET application .NET application generates random number and stores it in the user table along with the user's full username (domain\username) Insecure token is formed as random number:username Insecure token is run through secure cipher (likely AES-256) using pre-shared key stored within the application to produce a secure token The secure token is passed as part of the query string to the Java application The Java application decrypts the secure key using the same pre-shared key stored within its own code to get the insecure token The random number and username are split apart The username is used to retrieve the user's information from the user table and the stored random number is checked against the one pulled from the insecure token If the numbers match, the username is put into the session for the user and they are now authenticated If the numbers do not match, the user is redirected to the .NET application's home page The random number is removed from the database

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  • Howto display or view encrypted data in encrypted form?

    - by Brian Gianforcaro
    In the Wikipedia Article on Block Cipher Modes they have a neat little diagram of an unencrypted image, the same image encrypted using ECB mode and another version of the same image encrypted using another method. At university I have developed my own implementation of DES (you can find it here) and we must demo our implementation in a presentation. I would like to display a similar example as shown above using our implementation. However most image files have header blocks associated with them, which when encrypting the file with our implementation, also get encrypted. So when you go to open them in an image viewer, they are assumed to be corrupted and can't be viewed. I was wondering if anybody new of a simple header-less image format which we could use to display these? Or if anyone had any idea's as to how the original creator of the images above achieved the above result? Any help would be appreciated, Thanks Note: I realise rolling your own cryptography library is stupid, and DES is considered broken, and ECB mode is very flawed for any useful cryptography, this was purely an academic exercise for school. So please, no lectures, I know the drill.

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