Android :: What Algorithms Does Javax.crypto Support?

Jul 21, 2010

I cannot find any documentation that specifies the algorithms that I can specify in getInstance for Cipher. Is there any around? Specifically, I am looking for support for the RC4 cipher.

Android :: What algorithms does javax.crypto support?

Android :: Is And Javax Security Available?

Feb 21, 2010

When I try to use code similar to that in I find the classes will compile but get a java.lang.VerifyError on execution the class uses and and one supporting class uses and bright ideas - is it OK to use a class loader extending these packages unavailable on the android and if so is there a list of unavailable packages

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Android :: Can Use Asymmetric Crypto On Mobile Phones

Jun 27, 2010

I would like to ask if i can use Asymmetric Crypto (like RSA or ECC) on android mobile phones, how, and what are the best libraries i should use.

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Android :: Bouncycastle Encryption Algorithms Not Provided

Jan 7, 2010

I'm trying to use BouncyCastle with android to implement ECDH and EL Gamal. I've added the bouncycastle jar file (bcprov-jdk16-144.jar) and written some code that works with my computers jvm however when I try and port it to my android application it throws: KeyPairGenerator ECDH What am I doing wrong?

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Android :: Optimizing Image Processing Algorithms

Aug 19, 2010

I am developing a mobile application that involves complex image processing operations. The app is designed in Java while the core image processing ops are implemented in native code, and compiled using the Android NDK.Now, I know that native code will *not* yield any significant performance improvement over Java code, and that the NDK purpose is only to support re-use of code libs (or to quickly integrate legacy code).are there any resources/tips-n-tricks/white papers/ samples on optimizing image processing algorithms for Android? To be even more specific, I am looking out for optimizing memory operations (cache misses, memory stalls, etc.). I profiled my application code and came to the conclusion that memory issues are causing the *maximum* performance penalty. (Nothing surprising over there, it is expected, but just verified with profile data as well).

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Android :: How To Implement Algorithms Such As Dijkstra On Google Maps?

Jul 19, 2010

How can I implement algorithms such as Dijkstra or backtracking on Google Maps integrated in Android ? For example I want to compute a route from city A to city B such that I pay the lowest price for gas.

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Android :: Difference Between BitBlit Algorithms In Skia And Libpixelflinger

Jul 14, 2009

In Android, I could see 2 BitBlit functions defined in skia and libpixelflinger libraries.

1) S32A_D565_Opaque function in external/skia/src/core/ SkBlitRow_D16.cpp has one implementation

2) scanline_t32cbl6blend function in system/core/libpixelflinger/ scanline.cpp has another implementation

Both implementations look different. Please help me understand the rationale behind these algorithms and the reason for having two different implementations/algorithms.

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General :: Crypto Tablet (GRC) Based On TCC8803 800mhz Dead

Oct 18, 2012

I have a tab with following specs TCC8803 800mhz, 256ram, 4gb intern SD, display 7" 800x480 capacitive, HDMI, rtl8188cus wifi, no 3g. no bluetooth, no gps, support extern SD -32gb, support extern keyb thru USB-OTG.

tab was rooted worked ok till tried to put Linux through Internet. Was downloading packages and then wifi lost connection.ever since the chip warm-up ( opened tab and felt it ! ) but no display or sound at all !! I think i left it on debug mode in order to have external keyboard work.

windows 7 will see it as 'unknown/ unrecognized' device, i forced ADB drivers to it, I get Android phone but also 'device cannot start.

Tried to conx with TV via HDMI but nothing there too.

Tried to format a 4gb SD with sardu tested ok with quemu but nothing on the tab. no lights, no sound, silence of death !!! FYI no power led on this 150 euro device.

have saved some system files.

Android 2.3.1 Gingerbread, rooted with superclick 2.3.3.

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Android :: How To Use Api?

Nov 5, 2010

Am a beginner in Android. i want to use java communication api in Android. have anybody worked on this. Any help would be appreciated. i want to enable serial port in Littleton board(PXA 270).Any examples for using Java communication API. kindly help me in this.

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Android :: How To Validate Javax Cipher Key?

Mar 6, 2010

I'm an android developer trying to use the javax.crypto package to encrypt/decrypt my SQLite database backups when I put them on the SD Card.That way, they can't be read while they're in the publicly accessible file system.I can encrypt/decrypt the file just fine, but I have no idea how to tell if the user input the right key or the wrong key. An incorrect key just returns a more jumbled file. I need a way of validating the user's password without storing it on the device (since they could be importing to another device).How can I check to see if the file has been successfully and correctly decrypted?

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Android :: Video Playlist And Javax.microedition

Jul 27, 2009

Anyone knows if Android 1.5 support video playlist format such SMIL? Also Android SDK doesn't include all the classes in J2ME such as:

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Android :: Import Javax.xml.transform Can't Be Resolved

Nov 21, 2010

I am trying to write some xml generated by my Android app to a file and I'm trying to use javax.xml.transform to do this. Only problem is that javax.xml.transform is not being found by eclipse.The only options that come up are javax.xml and javax.xml.parsers. Does anyone know what could be going on?

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Android :: - Not Trusted Server Certificate

Sep 25, 2010

I access web service..! My web service name is "" But it will show the following Exception " Not trusted server certificate" This is my code...............

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Android :: Could Not Find Method

May 27, 2009

I've been getting this error "Could not find method, referenced from method org.ksoap2.transport.ServiceConnectionMidp."

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Android :: Javax.mail.internet.InternetAd­dress Can't Be Found?

Mar 8, 2009

I am using Eclipse to develop and application for the android platform. When I try to tell it "import javax.mail.internet.InternetAddress", it does not recognize it. Does anyone know why?

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Android :: Include Additional Javax.* Packages In Droid App With Eclipse?

Oct 11, 2010

I saw article about Including additional javax.* packages in your Android App

and i want to do the same thing but using eclipse
so could anyone tell how to do it?

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Android :: Difference Between .opengl And Javax.microedition.khronos.opengles Packages

Nov 7, 2010

Just couldn't find anything regarding the purpose of android.opengl classes anywhere on the web: they seem to be copies of javax.microedition.khronos.opengles - just with static vs member methods.

So is there any special meaning in using them instead of j2me classes: are they supposed to be faster, have additional functionality, simpler to work with? I think of using them instead of passing that gl reference all the time.

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Android :: Conversion To Dalvik Format Failed With Error 1 With Javax/net/SocketFactory.class

Jul 19, 2010

Encounter this problem when trying to Build Project getting such output in console:


I was looking for my project to use the package javax, not found, clean all also does not help.

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Android :: - Not Trusted Server Certificate - Exception In Android

Jun 16, 2010

I am getting " Not trusted server certificate" exception when I am trying to hit https URL (.Net Webservice) from my android app. Below is my code:

HttpParams myParams = new BasicHttpParams();
HttpProtocolParams.setVersion(myParams, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(myParams, "utf-8");
myParams.setBooleanParameter("http.protocol.expect-continue", false);.................

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Android :: Android -- Support 1.6 - Support For Deprecated Code In 1.5

Jul 3, 2010

I'm trying to build a app that uses the SmsMessage class but there are two versions depending on the API level of the device:

android.telephony.gsm.SmsMessage (deprecated for 1.6 and above)

android.telephony.SmsMessage (the new class for 1.6 and up)

I want to target 1.5 and yet have the newer class (android.telephony.SmsMessage) run on devices with 1.6 or higher. How do I do this?

I have already tired this: but I couldn't get it to work (the author doesn't mention how he/she handles the different imports, the exact api level settings etc.)


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Android :: Sdk Support 1.5 For TTS

Dec 28, 2009

I have some questions about TTS(text-to-speech) lib, 1) does sdk 1.5 support for TTS? I download TTS application from market, but can't work 2) I develope the TTS app use third party TTS lib, but according the tutorial, the app can't work on my platform(x86+sdk 1.5 & htc diamond+sdk1.5) the error message is (eg: to speech "hello"):: I/TTS received: ( 3020): hello V/TtsService( 3020): TTS service received hello I/TtsService( 3020): Stopping I/TtsService( 3020): Stopped V/TtsService( 3020): TTS processing: hello V/TtsService( 3020): null synth, can't speak. can somebody give me the suggestion?

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Android :: Sim Card Support 2g / 3g?

Jul 3, 2009

i am looking for the information that can tell me if the sim/usim card inserted accept/support 2G and/or 3G? I need this information in order to adapt some call to the sim card. If the sim card support only 2G network, an APDU will be call, then if the usim card is 3G another APDU will be called instead.

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Android :: WAP Push Support

Mar 3, 2010

Doing some investigating and having troubles find specifics or how to raise issues. I send WAP push message to handsets yet have been testing the android handsets yet they are not recieving them. All versions of Android are affected. Other devices platforms dont have any issues "WinMo, Symbiam list goes on" Wierd thing I have tested it on a an HTC running Android with Sense UI and messages are received. What I would like to know if possible is anything happening to these messages or Could the device be intercepting it and trying to interprt in another applicatiuon? Could the device be recieving these messages yet not know what to do with them discard them? I have tried the dirreferent versions of WAP yet none work. Is there a module inside android not turned on. How would I request a change for android "if thats even possible"

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Android :: Any Plan For Support OMA - DM?

Jun 29, 2009

I know that Android currently does not support OMA-DM. Is there any plan for supporting OMA-DM in the later version of Android?

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Android :: Touchscreen Support

Sep 25, 2009

I'm running Android on a Beagle Board and want to add support for input from the Xenarc 706TSA touchscreen. When I plug it in it's identified as:

generic-usb 0003:0EEF:0001.0004: input: USB HID v2.10 Pointer [eGalax Inc. USB TouchController] on usb-ehci-omap.0-2.3/input0

There's also an error:

drivers/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed

When I touch the screen there seems to be some kind of response as the focus disappears, but I cant press anything on the screen. I get touch events when using "getevent".

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Android :: Support For Multiple PDP?

Feb 20, 2009

I want to know when will Android support Multiple PDP.

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Android :: 1.5 Version Support

Nov 9, 2010

I have a number of apps, and so far I have supported all versions from level 3, android 1.5.

For my latest app, I'm considering supporting only from 1.6, or possibly 2.1, upwards.

What's the trend thesedays? Is it becoming usual, or acceptable, to adopt this strategy?

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Android :: Version Support

Jul 19, 2010

I developed application in android 1.5 and i make it for support screens in large and medium and small through coding if i release android 1.5 on market it will appear in all android version phone market (android 1.5 +) .am i get application in droid,small device market and it is work fine or not.

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Android :: Froyo And PDF Support?

Apr 30, 2010

So we heard recently that Flash will be supported by the 2.2 release. Has anyone heard about PDF support? I am reading an RSS feed and it has some notes in PDF format that I would like to display within my application.

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Android :: Hebrew Support Out Of Box?

Jan 26, 2010

There is an open issue with about 100 people watching it and 80 comments on it which nobody seems to care about it is and it talks about Hebrew support for android phones. The current situation is that people need to root their phones to get it which is simply a ridiculous situation. This issues has been left unattended for a very long time and all that's really needed is to replace the system fonts with fonts that support hebrew. This has been done by Samsung on the Samsung Galaxy and has been proven as working and did not change the font of the system when viewing English. My question is, why is it that Google can't take the time to integrate a change that already exists in a branch of the OS into the trunk and thereby allowing many other people to enjoy the OS? This affects not only Hebrew, but Arabic and many other languages, what's the point of an open source OS if the project progresses so slowly?

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