How to decrypt a file by having key AES?
Hi,
I have 32 bytes array which is a AES key. How I can decipher a file with this key?
AES key is a Rijndael Key, generate to C/C++ and use in Java for decipher
Similar Messages
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How Do Decrypt .rem Files on Mac OSX10.6.8
hi,
i have an old bb curve 8900 with over 1000 pics and i am trying to download the pics, but every time i try they all have the .rem extension.
ive tried transferring them to my mac using the bb desktop manager but it is only reading 168 pics and ignoring the rest.
ive tried changing the media card settings as suggested by another site, and i have tried using the media card adapter but neither has helped.
is there something i need to do differently?
thanks,
gregHey Ghanderman,
Welcome to the BlackBerry® Support Community Forums.
If the BlackBerry® smartphone's media card files have a .rem extension added to the original file name this idicates the files are encrypted and media card encryption is enabled.
For instructions on how to turn on/off media card encryption, see: http://btsc.webapps.blackberry.com/btsc/KB12999
Thanks.
-HB
Come follow your BlackBerry Technical Team on twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.Click Solution? for posts that have solved your issue(s)! -
How to create backup file on itunes for ipod touch 4g game apps data? Is there a way to do it? I want to try an app on my friend's computer, but you can't add apps on another computer without having your own ipod's data being deleted. Thx for any help!
I want to know how to create a backup file (because I'm pretty new with itunes, and it's hard to use it for me still), how to store my app data/media/videos, etc. And how I can retrieve them back when I'm done with the app I tried on my friend's computer.
If anyone can help, it'd be great! Thank you so much!Sure-glad to help you. You will not lose any data by changing synching to MacBook Pro from imac. You have set up Time Machine, right? that's how you'd do your backup, so I was told, and how I do my backup on my mac. You should be able to set a password for it. Save it. Your stuff should be saved there. So if you want to make your MacBook Pro your primary computer, I suppose, back up your stuff with Time machine, turn off Time machine on the iMac, turn it on on the new MacBook Pro, select the hard drive in your Time Capsule, enter your password, and do a backup from there. It might work, and it might take a while, but it should go. As for clogging the hard drive, I can't say. Depends how much stuff you have, and the hard drive's capacity. As for moving syncing from your iMac to your macbook pro, should be the same. Your phone uses iTunes to sync and so that data should be in the cloud. You can move your iTunes Library to your new Macbook pro
you should be able to sync your phone on your new MacBook Pro. Don't know if you can move the older backups yet-maybe try someone else, anyways,
This handy article from Apple explains how
How to move your iTunes library to a new computer - Apple Support''
don't forget to de-authorize your iMac if you don't want to play purchased stuff there
and re-authorize your new macBook Pro
time machine is an application, and should be found in the Applications folder. it is built in to OS X, so there is nothing else to buy. double click on it, get it going, choose the Hard drive in your Time capsule/Airport as your backup Time Machine and go for it. You should see a circle with an arrow on the top right hand of your screen (the Desktop), next to the bluetooth icon, and just after the wifi and eject key (looks sorta like a clock face). This will do automatic backups of your stuff. -
I've a problem I've never come across before and it's how to permanently delete files on a usb flash key? I've just migrated from using Windows for 15 years onto Apple iMac and had been deleting files easily and permanently from the key on Windows without any hassle and thought I'd done the same on my iMac but seemingly they're still there as the tele is showing them when key is plugged in, BUT they can not be seen on iMac. I wondered why the key wouldn't take anymore files after, what I thought was, deletion and now I know why-imac hasn't deleted them!
I've actually gone into Disk Utility and formatted the key in it's usual FAT32 format to finally delete the files. Anyone any ideas as to why this happens and how to solve this please?
Many thanks
puretoonIn addition to what Drew wrote, remember the Mac has a data fork and a resource fork.
Here is an old thread but a nice recap by Dr. Smoke
._Files
Note that the ._file files you note are the resource forks of Mac files you copied to the drive from your Mac, and these are only visible when you use the Flash drive on a PC. These are normal and indicate the Flash drive is already formatted for Windows.
When you copy or save a file from a Mac OS X system to a Windows shared volume or a Windows-formatted disk, the Mac creates two files: the data fork (xxx) and the resource fork (._xxx). This is called Apple Double Format and is normal. The resource fork contains additional data about the file that is exclusive to the Mac that cannot be saved otherwise on Windows-formatted disks. This is new with Mac OS X, as documented in Mac OS X: Apple Double Format Creates File Name With the Prefix '._'.
The resource fork files (._xxx) are necessary if you want to copy the file back to the Mac and retain the metadata. The resource forks of files are invisible when they are used on the Mac: the Mac OS Extended file system (aka HFS Plus or HFS+) uses forked files, with a file having both data and resource forks.
You can delete the resource forks on the Windows disk if and only if you don't care about losing the resource fork information should you copy them back to the Mac, such as comments, image preview icon, etc. Some Mac applications use the resource fork data, so deleting the resource fork can be problematic if you copy the file back to the Mac. Likewise moving the file while not also moving its associated resource fork when using the data on a PC can result in problems when using some files again on the Mac.
You can't prevent the resource forks from being created if you copy or save files from the Mac to the Windows share or Windows-formatted disk via Finder. -
Hi Freinds......How to Encrypt/Decrypt Text file in j2me
Hello friendz.,,
I m having problem with textfile exncryption decryption in j2me..
Can abybode tell me how to encrypt/decrypt Text file using J2ME API's.......
PLZ help me .......
Thanx in advance
regards,
Paraghttp://www.mobilefish.com/developer/bouncycastle/bouncycastle.html
http://www-128.ibm.com/developerworks/library/j-midpds.html -
How do I protect my FLV files? or How to encrypt and decrypt FLV files using AIR?
Hi,
I am working on an AIR application, which is developed on eLearning concept. The application mainly deals with flv files. The application contains a video player component, which will stream flv files from an Apache Server and played in my application. Here my concern is I would like to protect my flv files some how against users who may stream them from Apache Server and use them without my application.
I thought of with an idea to do it. But I don't know whether it will work or not. So I am requesting for your suggestions and better ways to do this with a sample.
Here is my thought:
I would like to place the encrypted FLV files at Apache Server side [ Need to know how to encrpt the FLV files using Flex]
As my AIR application send a request for a FLV file, the Apache server should send the decryption key and a stream of FLV file.
AIR application should take the decryption key, stream of flv file and it should capable enough to decrypt the FLV file and play it in my application. [ But I don't know how to encrypt/decrypt FLV files through flex]
I can do encryption of FLV files using Mac Address of Apache Server system and using Java. But I don't know how can I decrypt the same FLV file ( Encrypted using Mac Address and java ) at AIR application side.
So I would be greatfull If any body help me in encrypting and decrypting of FLV file with a sample using Flex 3.0.
Thanks
Sudheer Puppalarussellfromblackburn south wrote:
Is it because the portable drive is NTFS format and the Mac wont recognise this? If so what do I do?
Yes, this is exactly what is causing the problem. Macs cannot write to NTFS formatted drives, only read. You must move the documents to the internal HDD/SSD of the Mac to be able to edit them.
Or, since you say you don't want to move the documents to the internal storage, you'll need to format the external HDD as FAT32. -
How to find out each Cell having Data or Not in Excel File by Using WDJ
Hi Friends,
I have one doubt on WDJ.
I have to Upload Excel File. Click on Upload Button in Excel file Data will move to One Bapi. This is I was done. But my Requirement is if any empty Cell in Excel That File not uploaded it display one error message Please upload Correct Excel File
How to find out each Cell having Data or Not in Excel File by Using WDJ. Please tell me.
By Using this Code I have Upload Excel File
InputStream text = null;
int temp = 0;
//wdComponentAPI.getMessageManager().reportSuccess("filePath Vijay:::");
try
File file = new File(wdContext.currentContextElement().getResource().getResourceName().toString());
FileOutputStream op = new FileOutputStream(file);
if (wdContext.currentContextElement().getResource()!= null)
text = wdContext.currentContextElement().getResource().read(false);
while((temp=text.read())!= -1)
op.write(temp);
op.flush();
op.close();
path = file.getAbsolutePath();
//wdComponentAPI.getMessageManager().reportSuccess("Path Name :::::"+path);
catch(Exception ex)
ex.printStackTrace();
But my Requirement is If excel having any Empty Cell that excel file not uploaded.How to do this...
Regards
Vijay KalluriHi my friend
I would like to share you some APACHE APi´s that i use when i have to read excel files in Web Dynpro.
JAR = poi-3.2-FINAL-20081019.jar
Some Example:
POIFSFileSystem fs;
HSSFWorkbook wb;
HSSFSheet sheet;
String myMexican_ValueFromExcelis = "";
try {
fs = new POIFSFileSystem(new FileInputStream();
// and select the cell "y"
cell = row.getCell( 0 );
myMexican_ValueFromExcelis = cell.getCellValue();
}cach(Exception e){
REgargds -
How to decrypt data when you can't get the private key in Windows?
I'm very confuse. My english is poor, but I try to say my question clearly.
When browser connects to a https website which needs client certificate to authenticate the identity, the browser will send client certificate to web server.
Then the web server will use the certificate to encrypt some data and send it to browser.
Then broswer should have private key to decrypt that.
But as I know, if I install a pfx format personal certificate, I can set can't export private key, which means you can't get the private key to use it. So how can
the browser decrypt the data without private key?
By the way, what is CSP, use CSP's interface can we use CryptoAPI
to decrypt data without private key?Answer for question is "you cant"..
"How to decrypt data when you can't get the private key in Windows?"
Read more
http://msdn.microsoft.com/en-us/library/windows/desktop/aa387460(v=vs.85).aspx
http://msdn.microsoft.com/en-us/library/windows/desktop/bb427432(v=vs.85).aspx
http://technet.microsoft.com/en-us/library/dd277320.aspx
http://en.wikipedia.org/wiki/Public-key_cryptography -
How to restore a control file without having its backup
Hi,
Can any one please suggest me how to restore a control file without having its backup.
ThanksTo add to what SB said, in years past the instructions for re-creating the control file manually were contained in the DBA Administration manual. It used to be and may still be common to be taking and saving a "backup control file to trace" for this purpose.
If you lost only the primary copy of the control file and it is an OS file then while the database is shutdown you can copy the secondary over the primary and then use if to start the database. If the control file is stored in ASM then there should be a way to perform the copy via ASM.
If you use rman for backups then a copy of the control file should be part of the backup process and you can retrieve it from the backup set then perform recovery using the backup control file though I do note the OP said something to the effect no backup exists. Still, I have knows of instances where the DBA did not realize that the backup set contained the control file and the spfile so I think this is worth mentioning just in case.
HTH -- Mark D Powell -- -
How do I crop an image in photoshop and place it in an illustrator file without having a white backg
How do I crop and image in photoshop and place it in an illustrator file without having a white background ?
Could you post the image (or a lores version of it) on this Forum?
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How to decrypt AES using a key
The example here will Generate the secret key specs first.
http://java.sun.com/developer/technicalArticles/Security/AES/AES_v1.html
I already have a Decrypt Key used in my server application. How can I use that key to decrypt the msg sent from server?Hi
I wrote this code to check Java encryption with AES and a key. This worked fine for me. Please have a look.
Encrypt and decrypt using the DES private key algorithm
import java.security.*;
import javax.crypto.*;
import javax.crypto.spec.SecretKeySpec;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
public class AESEncrypt {
public static void main (String[] args) throws Exception {
Security.addProvider(new BouncyCastleProvider());
byte[] plainText = "LOGIN=2222=v2-0-b7=SMST=smst=ASI".getBytes("utf-8");
// Get a DES private key
System.out.println( "\nAES key" );
String strKey = "75de8a33d3f18f1c29d86fa42b1894c7";
byte[] keyBytes = hexToBytes(strKey);
// skeyspec is the key to encrypt and decrypt
SecretKeySpec skeySpec = new SecretKeySpec(keyBytes, "AES");
System.out.println("Key: " + asHex(key.getEncoded()));
System.out.println( "Finish generating AES key" );
// Creates the DES Cipher object (specifying the algorithm, mode, and padding).
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding");
// Print the provider information
System.out.println( "\n" + cipher.getProvider().getInfo() );
System.out.println( "\nStart encryption" );
// Initializes the Cipher object.
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
// Encrypt the plaintext using the public key
byte[] cipherText = cipher.doFinal(plainText);
System.out.println( "Finish encryption: cipherText: " + asHex(cipherText));
System.out.println( "\nStart decryption" );
// Initializes the Cipher object.
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
// Decrypt the ciphertext using the same key
byte[] newPlainText = cipher.doFinal(cipherText);
System.out.println( "Finish decryption: " );
System.out.print( asHex(newPlainText) );
public static String asHex (byte buf[]) {
StringBuffer strbuf = new StringBuffer(buf.length * 2);
int i;
for (i = 0; i < buf.length; i++) {
if (((int) buf[i] & 0xff) < 0x10)
strbuf.append("0");
strbuf.append(Long.toString((int) buf[i] & 0xff, 16));
return strbuf.toString();
public static byte[] hexToBytes(char[] hex) {
int length = hex.length / 2;
byte[] raw = new byte[length];
for (int i = 0; i < length; i++) {
int high = Character.digit(hex[i * 2], 16);
int low = Character.digit(hex[i * 2 + 1], 16);
int value = (high << 4) | low;
if (value > 127) value -= 256;
raw[i] = (byte)value;
return raw;
public static byte[] hexToBytes(String hex) {
return hexToBytes(hex.toCharArray());
} -
Sum Encrypt does not recognize a copy of a file through linux to Mac 0S9. How decrypt this file with Sum Encrypt?
Hello, and welcome to Apple Support Communities!
I am not familiar with the program that you list, however files in OS 9 use things called Resource Forks (rather than file extensions) for filetype and creator.
If you sent a file through Linux these resource forks probably got stripped and now the file is nothing to your Macintosh.
It is best to BinHex your files (.hqx) before leaving the HFS file system so that their resource forks are preserved.
Regards,
Ryan -
Captivate 8 - How to change to producing "project.json" file instead of a "project.txt" file? Having issues with viewing published projects due to this. Would be thankful fo rany/all advice.
I'm having the same issue. I've been able to work around it by opening the txt file and copying the contents. Then I open a new file in Sublime Text 2, paste the contents and save the new file as "project.json". It seems to work, but it'd been nice if I didn't have to do this everytime I publish a new project.
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One file Encrypt in VB using 3DES how to Decrypt in Java ?
one file Encrypt in VB using 3DES how to Decrypt in Java ?
plese give me code
shrinathMy problem is something similar to him, but mine is in Tandem C. I have a encrypted text, which was encrypted in Tandem C using OpenSSL. I used CBC mode with no padding, i just wrote the encrypted text to a file & i tried reading the cipher from a Java program, so as to decrypt using the same CBC mode & no padding mode. but it is not decrypted as intended to be.
can u pls give ur comment? if u have any code can u pls share it here? -
How to Import .txt files in ORACLE having 300 thousand records
How to Import .txt files in ORACLE having 300 thousand records. Kindly help me in that context
You can make use of Sql*Loader utility and You can also use External table technique for this puspose.
For external table go through this link.
http://www.oracle-base.com/articles/9i/ExternalTables9i.php
Regards
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