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• What is the best nuclear missile crypto system?

  - by The Rook

  You are on a submarine and there is an encrypted message that you want to read. Two people must use their keys at the same time in order to obtain the plain text. What is best cryptographic primitive to use? Are the following two implementations suitable? plain_text=decrypt(Key1 XOR key2,ciper_text,IV) plain_text=decrypt(Key1,rc4_encrypt(key2,ciper_text,IV2),IV1)

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• C++ STL list vs set

  - by mokaschitta

  Hi, what of those two is faster for random insertions and deletions? I guess list, having the values as the keys as it is with sets seems to be attractive too though. Is performance similar for iterating over the whole container? Thanks!

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• How to copy items from a dropdownbox to another [C#]

  - by LuRsT

  How can I copy items hardcoded from one dropdown box to another keeping the keys and values? drpTypes.Items.Add(new ListItem("Tipos de Acções", "1")); drpTypes.Items.Add(new ListItem("Tipos de Combustível", "2")); drpTypes.Items.Add(new ListItem("Tipos de Condutor", "3")); drpTypesCreateEdit.Items.AddRange(drpTypes.Items);

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• Sorting an object?

  - by dfjhdfjhdf

  How to sort this object lexicographically by its keys: var obj = {'somekey_B' : 'itsvalue', 'somekey_A' : 'itsvalue'); so that it outputs like this: for (k in obj) { alert(k + ' : ' + obj[k]); //first "somekey_A : itsvalue"; then "somekey_B : itsvalue" }

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• How can I add a column to this union result?

  - by MrXexxed

  I have this query (which I removed some keys from for brevity's sake): SELECT id as in_id, out_id, recipient, sender, read_flag FROM received WHERE recipient=1 UNION ALL SELECT in_id, id AS out_id, recipient, sender, read_flag FROM sent WHERE sender=1 Which combines the results from two tables showing messages sent and received by a given user. What I'd like to do is add a column/flag to the result to distinguish which table the row belongs to so when I display them I can show a relevant icon for sent or received messages. How would I add this?

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• How to trim minutes and hours and seconds from Date object?

  - by Roman

  I need to make map where Dates are keys. 2 date objects are equals if they have the same value of getTime() method. I'm interested only in year, month and day. How can I trim unnecessary hours and minutes to get 'clear' dates?

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• How does Java order items in a HashMap or a HashTable?

  - by ComputerJy

  I was wondering how Java sorts items in the Map (HashMap or Hashtable) when they are added. Are the keys sorted by the hashcode, memory reference or by allocation precedence...? It's because I've noticed same pairs in the Map are not always sorted in the same order

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• SQL Alter: add multiple FKs?

  - by acidzombie24

  From here ALTER TABLE ORDERS ADD FOREIGN KEY (customer_sid) REFERENCES CUSTOMER(SID); How do i add several keys with SQL Server? is it something like the below? (I cant test ATM and unfortunately i have no way to test queries unless i run it through code) ALTER TABLE ORDERS ADD FOREIGN KEY (customer_sid) REFERENCES CUSTOMER(SID), ADD FOREIGN KEY (customer_sid2) REFERENCES CUSTOMER(SID2); or is it like ALTER TABLE ORDERS ADD FOREIGN KEY (customer_sid, customer_sid2) REFERENCES CUSTOMER(SID, SID2)

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• From an established ssh connection, what is a good way to encrypt messages on the side?

  - by WilliamKF

  If I have a connection between a client and a server using ssh. What is a good way to encrypt data sent outside the ssh connection for sending large amounts of data quickly and securely? I can use the ssh connection to set up the terms of the communication, sharing keys etc, but then will do the communication on the side.

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• C#, .NET, Registry key handle values, how do i map them to the registry path?

  - by Tom

  Hey, i know the 5 registry hives have large 8-digit values for their handles and i have written a function which maps the value to the hive name. However, i'm also getting (in my data) much smaller numbers like 60, 120 etc and i have no idea which registry keys these represent. What could i do to find out?

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• java RSA Multiple Encryption

  - by user1763730

  I encrypt my message with a symmetric key and the symmetric key itself has to be further encrypted with different RSA public keys. When I tried to implement the above I got the following error: javax.crypto.IllegalBlockSizeException: The input was invalid: Invalid input length. at com.rsa.shareCrypto.j.hD.engineDoFinal(Unknown Source) at javax.crypto.Cipher.doFinal(Cipher.java:2087) at wrap1.main(wrap1.java:69) Is there a way to solve this problem ?

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• How to iterate through Hash (of Hashes) in Perl?

  - by Jay Gridley

  Hello, I have Hash where values of keys are other Hashes. Example: {'key' => {'key2' => {'key3' => 'value'}}} How can I iterate through this structure?

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• How to retrive content of one table from database in sqlite for iphone?

  - by Warrior

  I am using Sqlite database in my app.I Have 3 tables in database(group, category & categorygroup).I want to retrieve the contents from the category table with reference to the primary key of the group table.category group act as a junction table which as both the primary keys of group and category .How can i achieve that.Please help me out,Thanks

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• Python: Sort a dictionary by value

  - by the empirical programmer

  I have a dictionary of values read from 2 fields in a database: a string field and a numeric field. The string field is unique so that is the key of the dictionary. I can sort on the keys, but how can I sort based on the values? Note: I have read this post 72899 and probably could change my code to have a list of dictionaries but since I do not really need a list of dictionaries I wanted to know if there a simpler solution.

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• How to remove MySQL database?

  - by Masi

  You may notice from my last question that a problem caused some more problems here. My database is now unusable partly due to my interest to break things and my inability to look at error messages. I know that I should not reuse primary keys, but I would like to use them again after the removal of the database that I deteriorated. So How can you correctly remove MySQL database?

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• Regular expression to process key value pairs

  - by user677680

  I am attempting to write a regular expression to process a string of key value(s) pairs formatted like so KEY/VALUE KEY/VALUE VALUE KEY/VALUE A key can have multiple values separated by a space. I want to match a keys values together, so the result on the above string would be VALUE VALUE VALUE VALUE I currently have the following as my regex [A-Z0-9]+/([A-Z0-9 ]+)(?:(?!^[A-Z0-9]+/)) but this returns VALUE KEY as the first result.

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• Write an assembly program to input keystrokes from the PC’s keyboard and display the characters on t

  - by J-MO

  Write an assembly program to input keystrokes from the PC’s keyboard and display the characters on the system monitor. Pressing any of the function keys F1-F10 should cause the program to end. I have no idea how to write this code, and need some help por favor.

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• Problem in Integrating TripIt api

  - by ranjith123

  I downloaded tripit_php_v1_25392 zip file i try to run the file in my local xamp it asks for api_url, consumer_key, consumer_secret, access_token ,access_token_secret keys how do i get those values and run the file

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• NEED PROGRAM in visualc++ opengl [closed]

  - by HAREEFML

  I AM NEW IN OPENGL VISUALC++ PROGRAMMING.I NEEDED A PROGRAM THAT, THE ROTATING OBJECTS.WHERE THE CUBE,CYLINDER,TRIANGLE & CONE AND THESE OBJECTS ROTATE AS THE KEYBOARD ARROW KEYS ARE PRESSED AND EACH OBJECTS START ROTATION WHEN THE KEYBOARD NUMBERS 1,2,3,4 ARE PRESSED. CAN I GET PROGRAM LIKE THIS? THANKS IN ADVANCE.

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• php array_filter without key preservation

  - by pistacchio

  Hi, if i filter an array with array_filter to eliminate null values, keys are preserved and this generated "holes" in the array. Eg: The filtered version of [0] => 'foo' [1] => null [2] => 'bar' is [0] => 'foo' [2] => 'bar' How can i get, instead [0] => 'foo' [1] => 'bar' ? Thanks

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• Read JSON (text file) into .NET application

  - by Bi

  I have a configuration file in the following JSON format: { "key1": "value1", "key2": "value2", "key3": false, "key4": 10, } The user can set/unset the configuration values using a text editor. I however need to read it in my C# application. Whats the best way to do so for JSON? The above keys are not associated with a class.

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• In Python 3, dictionary methods no longer return lists

  - by Eric

  In python 2, keys(), values() and items() returned lists. But in Python 3, they are dynamic views and to get these dynamic views to be lists, use the list() function to convert. Ok, I get that but what the heck is a dynamic view? What is it used for? Thanks

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• Multiple reference in SQL

  - by AGarofoli

  Hi! I'm working on a db but i'm kinda new to this so i've bumped into a problem today. I've got some tables: OFFICE, ROOM, EMPLOYEE and DOCUMENT. Document must specify the sender, which can be a single employee, an entire room or an entire office so it must have a reference to the primary keys of those tables. Should I do a "parallel" table for handle it (for example i've done one for handle the multiple recipients documents) or there is another way? Thank you

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• Using query to change table mapping

  - by crapbag

  I have a table mytable( id, key, value). I realize that key is generating a lot of data redundancy since my key is a string. (my keys are really long, but repetititve) How do I build a separate table out that has (key, keyID) and then alternate my table to be mytable( id, keyID, value) and keyTable(keyID, key) ?

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• PHP checking $_POST

  - by sea_1987

  I have some form fields that when a form is submitted creates an array within the $_POST, I needing to check the this array has atleast 4 keys, how can I check that? I have no idea

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