What does salt and Iteration mean

What does salt and iteration mean in the constructor of PBEKeySpec

A key is generated from your PBE password using MD5 hashing.
To make it more difficult to attack
1) the hash is initialised with a 'salt' value before hashing the password,
2) the result of first hashing is hashed iteratively the number of times given by the 'iteration' count parameter with the final hash value being used as the key.

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What does itm and fin mean

What does itm and fin mean in the file name?
Thanks
John

They are in my "all Movies" folder, and the kind is Final Cut Express Movie file.
If they are render files and I'm done with that project can I delete them to save space?
Space on my HD is an issue.
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When I sign in to download an Apple update it says unable to connect to store. check my time and date? What does time and date mean other than what my clock shows?

When I get a notice to update an app from Apple I am told that the connection cannot be made. Update your time and date. What does this mean other than my ipod clock?

What you are experiencing is 100% related to Malware.
Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
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Did this fix your problems? Please report back to us!

What does "Implicit" and "Explicit" means????

-- after reading various Java books, articles, magazines, forums .... etc...
These two words: "Implicit" and "explicit" always appear on every text ...
-- Does implicit means "directly" and explicit means "indirectly"?
thanks

-- after reading various Java books, articles,
magazines, forums .... etc...
These two words: "Implicit" and "explicit" always
ways appear on every text ...
-- Does implicit means "directly" and explicit
licit means "indirectly"?
thanks"implicit" means that something is executed that is not written in your code
"explicit" means that whatever is executed specifically exists in the code.
For instance: "a base class constructor implicitly calls super() if you don't explicitly call super yourself."
That means even though it is not written in the code, the line:
super();
will be executed unless you explictily include a call to super() yourself, such as:
super(10, 14.6, "some text");

What does "& 0xFF" and "& 0x0F" mean

I was trying to understand someone's code yesterday and came across this segment
ByteBuffer pixels = ByteBuffer.allocateDirect(256 * 256 * 4);
        for (int i = 0; i < 256; i++) {
            for (int j = 0; j < 256; j++) {
                int value = perm[(j + perm) & 0xFF];
//System.out.println(value);
pixels.put((byte) (grad3[value & 0x0F][0] * 64 + 64)); // Gradient x
pixels.put((byte) (grad3[value & 0x0F][1] * 64 + 64)); // Gradient y
pixels.put((byte) (grad3[value & 0x0F][2] * 64 + 64)); // Gradient z
pixels.put((byte) (value)); // Permuted index
pixels.rewind();I am still very new to the idea of bytes and was wondering what "& 0xFF" and "value & 0x0F" did so that I can understand what kind of value will be inserted into the Byte Buffer.
Thanks for your help

Sure, I can explain. One example would be this:
Say you wanted to store four bytes in an integer. You might be tempted to do this:
byte[] bytes = new byte[4];
int bytesAsInt = byte[3] << 24 | byte[2] << 16 | byte[1] << 8 | byte[0];Now, the << operator shifts all the bits left by 24, 16, 8, etc positions, and the | is bitwise OR. So at first glance, you'd think that this would be the flow:
bytes = {0xF1, 0xFF, 0xF0, 0xF7};
0xF7 << 24 = 1111 0111 0000 0000 0000 0000 0000 0000
0xF0 << 16 = 0000 0000 1111 0000 0000 0000 0000 0000
0xFF << 8 = 0000 0000 0000 0000 1111 1111 0000 0000
0xF1 << 0 = 0000 0000 0000 0000 0000 0000 1111 0001
         | = 1111 0111 1111 0000 1111 1111 1111 0001 This is the answer we're looking for, but it's not what we get. Why? Because "<<" takes an int as the left operand, and so your byte is converted to an int (which includes sign extension, whereby the highest bit is used as padding instead of 0).
So what you really have is this:
bytes = {0xF1, 0xFF, 0xF0, 0xF7};
0xF7 << 24 = 1111 0111 0000 0000 0000 0000 0000 0000
0xF0 << 16 = 1111 1111 1111 0000 0000 0000 0000 0000
0xFF << 8 = 1111 1111 1111 1111 1111 1111 0000 0000
0xF1 << 0 = 1111 1111 1111 1111 1111 1111 1111 0001
         | = 1111 1111 1111 1111 1111 1111 1111 0001 Which is clearly not the answer you're looking for. So to protect against this, you truncate each integer's data at the byte level before OR-ing them together:
byte[] bytes = new byte[4];
int x = (bytes[3] & 0xFF)<<24 | (bytes[2] & 0xFF)<<16 | (bytes[1] & 0xFF)<<8 | (bytes[0] & 0xFF);This is just one (extremely verbose) example.

I was playing with my ipad settings (it's an older model) and noted in the advanced settings of Safari there was a place to view website databases. When I clicked on this I saw websites. How do these get there and what does the space amount mean?

I was playing with my ipad settings and noted in he advanced settings of Safari there was a place to view "website databases". When I selected this I saw a multitude of websites.
Can anyone tell me how these get there? Can a website be posted even if it was never went to? What does the space amount mean? For example, 1.5 kb...is this quite a bit? Would it indicate someone has gone to a site multiple times?
I share my ipad with my teenage daughter and I'm trying to find out if she's lying to me. Obviously she's swearing that she has "no idea" how these got there and I'm trying to keep her safe (she's only 14).
Thanks everyone.
Concerned Mom

Think of your PC and the 'temporary internet folder' where it keeps cached copies of web pages or elements off a web page for 'quicker display the next time you visit'. That's pretty much what that folder is. 1.5K is tiny. Probably just a basic page with some text on it. (you might be confusing 1.5K with 1.5 megabyte....megabyte is large...it's roughly 1000 kilobytes, so the 1.5K is a tiny file)
As far as I know, the only way info gets into that folder is if the browser has been to that site.
if you have a concern there are browsers out there, McGruff is one i've seen recommended, that allow some degree of parental control and supervision. That or you could passcode lock the iPad or enable the restrictions to turn off some parts of the device to have some control.

What does "extracted channel PDF" mean and why does it continually duplicate on my desktop? I think it happens when I move a file in Finder to another file and when I copy some web files. How do I avoid this on my Mac (Mavericks)? Thanks for your help!

What does "extracted channel PDF" mean and why does it continually duplicate on my desktop? I think it happens when I move a file in Finder to another file and when I copy some web files. I have to immediately move to trash all the duplications on my desktop. How do I avoid this on my Mac (Mavericks)? Thanks for your help!

What application is set to open PDF files? If you CNTRL click on the file and open with Preview does the problem occur?
If not change the default application to open PDF files to Preview.
You can do this by highlighting the file and either use CMD i or Get Info , this will open a window with the info on the file with an option to change the application that opens the file.
That's all I can think of.

What does "on my mac' mean and how do i delete or reduce the number of items in there?

What does "on my mac" mean and how do i delete or reduce the number?

Hi ya
I'm seeing this on my email screen, on the left hand side - under the "RSS Apple". The number of items in there is now 752. It's preventing me from sending and receiving emails in my AOL account.
Any help would be deeply appreciated.
Thank you.

What does this error message mean and how do I solve it? "Sorry, one or more of the following command-line tools was not found: /usr/bin/lsbom, /bin/pax, /bin/mkdir, /bin/chmod, or /usr/bin/update_prebinding."

When I try to open up this program, Pacifist, I receive this error message. Here's a screenshot. http://i.imgur.com/v717w.jpg What does this error message mean and how do I solve it?

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What does MFMessageDomain error 1032 mean and how do I fix it?

What does MFMessageDomain error 1032 mean and how do I fix it?

I get the same when plugging the phone into iTunes - saying it can't sync - yet it does.

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what does doa cover. i mean i brought a macbook 6 days back and it uses to restart when its powerd off nd lid closed it has kinda defective power key also. can it be treated as doa

DOA means different things to different manufacturers. For some DOA means it fails to work out of the box and will be replaced but if it worked out of the box and failed the next day it will be repaired. For other companies there is a liberal return policy - for Apple if you buy direct from Apple (online or an Apple store) you have 14 days to return. That means you can return a defective computer and then turn around and buy a new one.
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sh-3.2$ is a /bin/sh bourne shell prompt.
So are you talking about a Terminal session, or are you in single user mode?
What account are you logged in as?
What do you expect to see? Something like: computername:~ username$
I think you have a command prompt, so getting to the root directory would be as simple as
cd /
and
pwd
will tell you what directory you are currently in.
But Frank Caggiano is correct, you really do need to give a better description of what you are seeing, where you are seeing it, what you expect, and what it is you are trying to actually do.

What does the red bubble mean that is near the phone symbol and moves over to the vm symbol when phone is turned on

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I got an iphone from Hong Kong which is locked one. Can anyone explain me what does a locked iphone means. How do I use it in India now, with my own sim card. How do I unlock it???

If your iPhone is locked to a wireless provider, only that wireless provider
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offer unlocking and if you qualify.
If your iPhone is locked to an AppleID that you do not know, return it for
a refund as it is useless. Only the person whose AppleID was used for
activation can remove the lock. There is no workaround for Activation Lock.
If neither of the above is what you are facing, provide more detail so someone
may offer a solution.

What does salt and Iteration mean

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