![]() ![]() He can hash each and compare it to the hash of his victim's password, and see if it matches. Suppose an attacker has a list of likely passwords. Salt helps to thwart pre-computed dictionary attacks. But it would serve to let a legitimate recipient know that the wrong password was used for decryption. A hash collision on a password is more likely to be useful to an attacker a hash collision on the content is likely to be worthless. ![]() Regarding your desire to store a hash of the password, if you use PBKDF2 to generate the key, you could use a standard password hashing algorithm (big salt, a thousand rounds of hashing) for that, and get different values.Īlternatively, you could compute a MAC on the content. This will require some study on your part, but again there are existing libraries to use, and it opens up the possibility of inter-operating more smoothly with other software, like S/MIME-enabled mail clients. ![]() You might also consider using the Cryptographic Message Syntax as a format for your file. You should be able to find an open-source library that implements PBE key generators for different algorithms. It's similar to the algorithm you outline, but is capable of generating longer symmetric keys for use with AES. I would recommend using a recognized algorithm such as PBKDF2 defined in PKCS #5 version 2.0 to generate a key from your password. at work) and be able to migrate/move the data by simply copying the file (so I can use it at home, on different workstations, etc.). But I'd like to deploy it in a shared environment on computers I don't fully control (e.g. Thus, password-based key derivation as defined here is a function of a password, a salt, and an iteration count, where the latter two quantities need not be kept secret.ĭoes this mean that I could store the salt value in the same place/file as the hashed key and still be more secure than if I used no salt at all when hashing? How does that work?Ī little more context: the encrypted file isn't meant to be shared with or decrypted by others, it's really single-user data. For example, this spec linked by erickson (below) says: I thought the salt had to be kept secret to be useful, but your answers and links imply this is not the case. So is this design reasonably secure, or hopelessly naive, or somewhere in between? Thanks!ĮDIT: clarification and follow-up question re: Salt. That way, I can take the file to another PC and decrypt it by simply entering my password. So I hash it again, basically treating it just like another password, and save the doubly-hashed value in the data file. But since I use the hashed user password for the symmetric encryption key, I can't use the same value for authentication. "HashedUserPwdAndKey" -> "HashedValueForAuthentication"īasically I'm extrapolating from the common way to implement web-site passwords (when you're not using OpenID, that is), which is to store the (salted) hash of the user's password in your DB and never save the actual password. the unencrypted part of the data file) and uses that value to validate the user's password. Step 3: App hashes the hashed value from step 2 and saves the new value in the data file header (i.e."MyDifficultPassword" -> "HashedUserPwdAndKey". Step 2: App hashes the user-password and uses that value as the symmetric key to encrypt/decrypt the data file.Step 1: User enters plain-text password, e.g.So tell me: is this crazy? Is there a better/best way to do it? I have a strategy that appears workable and seems logical based on what I know (which is probably just enough to be dangerous), but I have no idea if it's actually a good design or not. I want the encrypted data file to be self-contained and portable, so the authentication has to be embedded in the file (or so I assume). ![]() one must enter the correct password to decrypt). I'm writing a little desktop app that should be able to encrypt a data file and protect it with a password (i.e. ![]()
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![]() Currently, the ImageCast X BMD on the market encodes the voter choices in a non-human readable QR code. ![]() Unless configured as a full-face ballot, the paper record lists only the voters’ choice(s) in each contest. Accordingly, after reviewing choices on the summary page, the voter selects when to print a paper record of their choices. When configured exclusively as a ballot marking device (which is how most jurisdictions deploy it), ImageCast X does not have scanning or tabulating capabilities. The ATI can also support headphones for voters who are visually impaired, or paddles or sip-and-puff devices for voters with dexterity impairments.ĭepending on how jurisdictions choose to configure the ImageCast X, after voters have had the opportunity to review all choices on the summary page, the method of casting the ballot differs. ImageCast X supports accessible voting through an optional tethered Audio-Tactile Interface (ATI), which is a “game controller” style console that includes tactile navigation buttons. In all versions of ImageCast X, the device can be configured with additional accessible features for voters with disabilities. (And if voters skip any contests, the screen indicates “ Under_vote.”) After voters are finished marking all their preferred choices, the device presents a “review page” that allows voters to double-check their choices on their ballot. The ImageCast X device allows voters to mark choices on the touchscreen display. In BMD and DRE configurations, to begin the voting process, voters insert a “voter activation card,” which is configured with a voter’s ballot style during the voter check-in process after the activation card is inserted, the ImageCast X automatically displays the proper version of an electronic ballot. Whether ImageCast X is deployed as a marking device only, or as a DRE, these configurations are not interchangeable. ![]() It is often used as an assistive device, but is also deployed in some jurisdictions for use by all in-person voters. It is used in some other jurisdictions, with several municipalities in Wisconsin adding the ImageCast X DRE in 2022. Most Nevada counties have used ImageCast X DREs since 2018 and all of Louisiana uses the ImageCast X DRE for early voting. The ImageCast X is most commonly deployed as a BMD, with an attached commercial-off-the-shelf (COTS) laser printer. It can be deployed as either a ballot marking device (BMD) without tabulation capabilities, or as a Direct Recording Electronic (DRE) voting machine. ![]() Dominion Voting Systems ImageCast X is a touchscreen voting machine. ![]() ![]() ![]() You have received a late acceptance to the Hogwarts School of Witchcraft and Wizardry and soon discover that you are no ordinary student: you possess an unusual ability to perceive and master Ancient Magic. Your character is a student who holds the key to an ancient secret that threatens to tear the wizarding world apart. Embark on a journey through familiar and new locations as you explore and discover fantastic beasts, customize your character and craft potions, master spell casting, upgrade talents, and become the wizard you want to be.Įxperience Hogwarts in the 1800s. ![]() Now you can take control of the action and be at the center of your own adventure in the wizarding world. LIVE THE UNWRITTEN = Hogwarts Legacy is an immersive, open-world action RPG set in the world first introduced in the Harry Potter books. Trapped with hostile creatures called "necromorphs", Isaac faces a battle for survival, not only against the escalating terrors of the ship, but his own crumbling sanity. Now Isaac is alone with only his tools and engineering skills as he attempts to uncover the nightmarish mystery of what happened aboard the Ishimura. The ship's crew has been slaughtered and infected by some alien scourge.and Isaac's beloved partner, Nicole, is lost somewhere on board. In Dead Space, Isaac Clarke is an everyman engineer on a mission to repair a vast, sprawling starship, the USG Ishimura, only to discover something has gone horribly wrong. Fans will experience an improved story, characters, gameplay mechanics and more as they fight to survive a living nightmare aboard the desolate mining starship, the USG Ishimura, all while uncovering the dreadful mystery of what happened to the slaughtered crew and ship. Developed exclusively for next generation consoles and PC, raising the level of horror and immersion to unprecedented heights for the franchise through stunning visuals, audio and controls powered by the Frostbite game engine. ![]() ![]() ![]() YellowĪstronauts in their orange spacesuits prior to launch of the Space Shuttle Atlanis on mission STS-125, in front of a mockup of the shuttle. The majority of plant’s naturally produce green-colored pigments called chlorophyll which are the sites for the conversion of atmospheric carbon dioxide into breathable oxygen, known as photosynthesis. It is fair to assume that green’s connection to nature lies in its abundance amongst it. According to the BBC the word “green” comes from the Proto-Indo-European (ancient people that lived around the 4th millenium BC) word “ghre”, which means “grow”. The color green has also been firmly attributed to the environment – in particular when used to illustrate products or campaigns which support the health of the planet. ![]() "Green in its degraded sense gives us 'the green-eyed monster jealousy,' which is the direct opposite of celestial wisdom, for jealousy is always due to the intrusion of the desires of the self, while celestial wisdom wishes to give rather than to receive," Conroy wrote. Blue: Why Necktie Colors MatterĪside from its association with wisdom, there's a flipside to green. ![]() – Why is the color blue so rare in nature? More than 9,000 mollusks were needed to create just one gram of Tyrian purple, and because only wealthy rulers could afford to buy and wear fabrics dyed with the color, it became associated with the imperial classes of Rome, Egypt and Persia.Īnother consequence of this is that purple also came to represent spirituality and holiness, because the ancient emperors, kings and queens that wore the color were often considered to be gods or descendants of the gods. Fabric traders obtained "Tyrian purple," as the dye was called, from a small mollusk that was found only in a region of the Mediterranean Sea near Tyre, a Phoenician trading city located in modern-day Lebanon, according to the journal Molecules. Purple's elite status stems from the rarity and cost of the dye originally used to produce it. In many European societies, the symbolism was even established by law: From ancient Rome to Elizabethan England, "sumptuary laws" forbade anyone except close members of the royal family to wear the color, according to Harvard Law School. Purple symbolizes royalty, nobility and imperialism. A study published in the journal Color Research and Application found that black was the overall favourite color to wear amongst female study participants. Of course the black isn’t always synonymous with death and despair, especially in the world of fashion. Throughout history the color black has also been attached to fearful and mysterious things, such as black magic, black holes, the black plague and so on. There was the added coincidence of death sharing similarities with sleep, which happens in the darkness of night and when closed eyelids block out all light. Ancient people were completely "in the dark" about what would happen to them after death, and so it was (and is) represented by the color black in many cultures. Of all mysteries, death may have been the biggest. This was because night, the absence of light, transcended human perception in the same way that the wisdom of God was thought to be beyond comprehension. Many ancient cultures believed that black was "the color of mystery and of the mysterious ways and wisdom of God," historian Ellen Conroy wrote in her book " The Symbolism of Colors" (1921). The colour – or rather adsense of colour– black is often linked with negative associations, such as death, fear or sadness, according to the Journal of international Colour Association. ![]() ![]() ![]() And too much of the dialogue still leans on clichéd hoo-hah or apoplectic sputter. Think about the thing that usually happens in cyberpunk stories and you’ll probably guess both. Its revealed-at-the-end big bad disappointingly hollow. The campaign falters at points: Its grand question are boringly obvious. That’s before delving into the overhauled “zombies” mode (completely self-contained and unrelated to the campaign), the “freerun” parkour courses (clearly inspired by DICE’s Mirror’s Edge), the ghoulish “nightmares” mode that unlocks once the story’s finished and serves as a kind of survival horror coda, and of course the whole new eSports-friendly multiplayer-verse, unavailable to test during this review but which I’ll be turning to once the game’s in the wild tomorrow. Weapons and cybernetic stations let you spend points earned in battle to unlock special abilities in different disciplinary areas or augment weapons in myriad ways, each supporting meaningfully unique tactical approaches to a level’s problems.Īnd levels are the most tactically open and vertically capacious they’ve ever been, providing ample room to flex your cyber-mojo while pursuing dozens of achievements and collectibles that dovetail with your character’s developmental trajectory. You now operate from safe houses between missions, where you can peruse details that inform what sort of heat you’ll want to pack before deploying. Into that, developer Treyarch pours a wealth of play choices. Black Ops III, by comparison, swerves darker and more existential, nudging us further forward in time toward a trans-human future in which soldiers involuntarily (though sometimes voluntarily) trade body parts for cybernetic limbs, and their private realities for wireless versions of the brain-stabbing prongs in The Matrix.īut where Advanced Warfare‘s soldiers might tolerate loose analogies with heavy-hitting superheroes like Iron Man, Black Ops III instead gives us lithe cyborgs that can chain daring maneuvers (like the wall-runs in Respawn’s online shooter Titanfall) while manipulating or wreaking havoc on nearby electronic systems (like in Ubisoft’s open-world hacking game Watch Dogs). ![]() Those suits lent players superhuman abilities that occupied center stage in a tale of a private military contractor gone rogue. 2014 Call of Duty: Advanced Warfare‘s also-futuristic campaign explored related ideas, outfitting players with exoskeletal suits extrapolated from existing military concepts. ![]() ![]() ![]() ![]() If the box is left empty, when launch, a Credential list will open with all available Credentials entry from your User Vault. Will search your User Vault for the name specified. No credentials will be allowed to be saved or linked to this entry. This allows you to centralize one credential to replace or emulate the ones for your Windows session. Add, edit, delete, shared, organize and find your remote connection quickly. Activate a license server You must activate a license server before it can issue Remote Desktop Services client access licenses (RDS CALs) to Remote Desktop clients. Will use the credentials set in My personal credentials feature. Remote Desktop Manager is a small application used to manage all your remote connections and virtual machines. The credentials used by this entry will be inherited and defined by climbing up the navigation tree until it has access to a set of credentials in a parent folder. that Socks-based sessions cannot initiate a dial-up connection to the Net. This mode is deprecated and not recommended. In the Settings window, locate Serial Number in the applications category. To do that, locate the Data Source settings under the administration tab. Link your entry to use an existing Credential entry in the same vault.Įmbed a Credential entry in the entry itself. To share the key with coworkers, simply link it to the data source. This option allows to enter custom credentials in the General section of the entry. ![]() Multiple options are available to use for Credentials in your Remote Desktop Manager entries. ![]() ![]() ![]() When asked directly by Tapper if he believed that officials in the inner circle of the Trump White House conspired to undermine the election results, Thompson replied: “No question.” “The President of the United States, is responsible for ensuring the laws are faithfully executed, he’s responsible for the security of the branches. So, for the president to either through his action, or inaction for example, attempt to impede or obstruct the counting of electoral votes, which is an official function of congress, the committee is looking at that, whether what he did constitutes that kind of a crime. But certainly, it’s dereliction of duty.” “He (Trump) watched the attack happened on television. We know that he did not walk in the very few steps to the White House briefing room, get on camera immediately, and tell the people to stop and go home,” Cheney said. 6 select committee, said they still believe there is a chance they will be able to conclude that the actions of former President Trump and some of his associates constitute a crime. “We have to tell that story. We'll be able to document it. And I am concerned that even the replacement of certain people, to accomplish the big lie, was under consideration,” Thompson said. "So, the vice chair and I have joined together to make sure democracy stands in this country." ![]() Thompson made it clear the committee is very interested in the attempts to use the power of the federal government to attempt to prevent the peaceful transfer of power. And that is very concerning, that they used assets of the federal government to try and promote the big lie. That they intimidated state officials toward the big lie," Thompson said during a CNN special with Anderson Cooper and Jake Tapper. "I can tell you that we are learning that individual's conspired to change the outcome of the election. 6 House select committee, said the committee is investigating individuals who tried to change the 2020 election outcome and that the panel still needs to talk to "quite a few people." Bennie Thompson speak with CNN's Jake Tapper at the US Capitol on Thursday. ![]() ![]() ![]() The capacity reduction factor increases linearly to a maximum value of 0.9 as the tension strain increases from 0.002 to 0.005. However, the code imposes a capacity reduction factor of 0.65 when the strain in the tension steel equals 0.002. With negligible axial force (axial force less than 0.1f'cAg), the strain in the extreme tension steel must exceed 0.004 (that is, approximately twice its yield strain) when the extreme compression edge of the member reaches the ultimate concrete strain of 0.003. 10.3.5 limits the strain in the extreme tension reinforcement at the nominal strength. This provides warning in the event of failure. The maximum limit on the amount of tension steel ensures that the steel yields well before the concrete crushes, so that the beam fails in a gradual, ductile manner and not a sudden, brittle manner. For cantilevered T-beams with the flange in tension, the value of bw used in the expressions is the smaller of either the flange width or twice the actual web width. The code makes an exception to this requirement for slabs and footings, which require minimum temperature and shrinkage steel, and for special cases in which the amount of steel provided in a flexural member is at least one-third greater at every point than required by analysis. The minimum limit ensures that the flexural strength of the reinforced beam is appropriately larger than that of the gross section when it cracks. 10.3.5 and 10.5 limit both the minimum and maximum amount of tension steel that is acceptable in a beam. Other symbols are as defined in figure below.ĪCI Secs. 8.12 limits the effective flange width, be, of such members by the following criteria. Geometric relationships determine the depth of compression region and a summation of moments gives the nominal moment strength of the section.Įxample: Solution of Design Moment Strength of An Irregularly Shaped Beam Sectionįor most cast-in-place floor systems, the slab and beams are cast monolithically and the slab functions as the flange of a T- or L-shaped beam, as shown in Figure below. In the absence of axial forces, in a properly designed beam (that is, a beam for which tension steel yields) the compression region is determined using the condition of equilibrium. Figure below shows three typical cross sections with irregularly shaped compression regions.įortunately, the same principles that govern the behavior of rectangular beams apply more generally to these cases as well. Many reinforced concrete beams have cross sections that are not rectangular. The resultant compression force in the concrete, C, forms a couple with the resultant tension force, T.Įxample: Solution of Maximum Uniformly Distributed Service Live Load That A Beam Can Support Based on Its Flexural Strength The concrete stress distribution may be replaced by an equivalent rectangular distribution with uniform stress 0.85f' c acting over an area ba and creating a compression resultant, C = 0.85f' cba, that acts at distance a/2 from the compression edge.įor bending without axial force applied, equilibrium requires.In a properly designed beam, the tension steel yields thus, T = Asfy.The ultimate strain in concrete is 0.003.Tension stress in the concrete is negligible (that is, all tension is resisted by steel).A complete bond exists between the steel and the concrete that is, the strain in the steel is the same as in the adjacent concrete. ![]() Strain varies linearly through the depth of the member.10.2 and 10.3 give the principles governing the flexural strength. Figure below shows a typical cross section of a singly reinforced beam and the notation used.ĪCI Secs. A beam of this sort is referred to as singly reinforced. The simplest case is that of a rectangular beam containing steel in the tension zone only. For most practical designs, ACI specifies the value of φ as 0.9 however, special cases exist for which lower values apply. Mn is the nominal moment strength of the member, Mu is the bending moment caused by the factored loads, and φ is the capacity reduction factor. The basic strength requirement for flexural design is Unless otherwise specified in a problem, flexural members will be referred to as beams here. In the following sections, the ACI 318 provisions for the strength, ductility, serviceability, and constructability of beams are summarized and illustrated. But their behavior in every case is essentially the same. In modern construction, these members may be joists, beams, girders, spandrels, lintels, and other specially named elements. Flexural Design of Reinforced Concrete Beams Courses > Reinforced Concrete Design > Design of Concrete Members > Flexural Design of Reinforced Concrete Beamsįlexural members are slender members that deform primarily by bending moments caused by concentrated couples or transverse forces. ![]() ![]() The killing took place during a recession that was partly blamed on the rise of the Japanese auto industry. And in 1982, Vincent Chin, a Chinese American, was beaten to death by two Detroit autoworkers who thought he was Japanese. After the Vietnam War, refugees from Southeast Asia faced routine discrimination and hate, including attacks by Ku Klux Klan members on shrimpers in Texas. citizens - in the wake of the attack on Pearl Harbor. World War II saw the forced internment of about 120,000 Japanese Americans on the West Coast - an estimated 62 percent of whom were U.S. In modern American history, Asian Americans have been regularly scapegoated during periods of national duress. “That far back, we can see how racism and sexism were being conflated.” “In the 1875 Act, we see the ways in which race and gender are beginning to be entangled and codified in the law, and how Asian women were deemed to be bringing in sexual deviancy,” said Sato. Sato said the Page Exclusion Act is a precursor to the dehumanizing narratives and tropes that render Asian woman as objects of sexual fetishization and unworthy of being part of the national consciousness. The act banned the immigration of Chinese laborers, much as the Page Exclusion Act of 1875, the nation’s first restrictive immigration law, had prohibited the entry of Chinese women. Sato pointed to the Chinese massacre of 1871, when a mob in Los Angeles’ Chinatown attacked and murdered 19 Chinese residents, including a 15-year-old boy, a reflection of the growing anti-Asian sentiment that came to its climax with the Chinese Exclusion Act of 1882. ![]() ![]() “But it’s really part of a much longer genealogy of anti-Asian violence that reaches as far back as the 19th century.” “The important thing to remember is that this is really not an exceptional moment by any means,” said Sato. They have not yet charged him with hate crimes, and legal experts say such a case may be difficult to establish.īut for Courtney Sato, a postdoctoral fellow in The Charles Warren Center for Studies in American History, the general rise in hostility that serves as the tragedy’s backdrop is part of the nation’s long history of brutal bigotry against Asian Americans. Authorities say the suspect, a 21-year-old white man, has confessed to the attacks and blames a sex addiction for his actions. The Atlanta shootings that killed eight people, six of them Asian women, took place amid an upsurge in anti-Asian violence during the pandemic. ![]() ![]() ![]() Enroll iPhones and iPads without Apple IDįor Android Enterprise, devices are usually enrolled in the Sophos Mobile Self Service Portal.You can configure iPhones and iPads to auto-enroll with Sophos Mobile during device activation. With the Self Service Portal you can reduce IT efforts by allowing users to enroll devices on their own and carry out other tasks without having to contact the helpdesk. You can create reports of the items managed by Sophos Mobile. Key steps for managing devices with Sophos Mobile.This will allow new devices to use your Mobile Guardian defined configuration when they are wiped in the future.On the Mobile Guardian portal Settings → iOS MDM Settings → Apple Device Enrollment Program click Resync Devices to apply the configuration to newly enrolled devices.On the Apple Device Enrollment Program Portal, choose Device Assignment and associated new devices to your MDM server associated with Mobile Guardian.Associate your new DEP devices with Mobile Guardian Added devices will be listed under “Devices Added by Apple Configurator 2”. Sign in to Apple Device Enrollment Program portal. You may now proceed with the setup on the device. Do not attempt to access the device until the MDM terms and conditions are displayed on the device. Your device may switch to the Welcome screen before the process is complete. Leave the user name and password fields empty and click Prepare.ĩ. Upload the WiFi profile which you’ve configured at the start.Ĩ. If you plan on using location-based profile assignments, ensure that the Location Services option is selected. From the Setup Assistant screen, choose Show only some steps and select the setup screen options you want to skip. Or, if you haven’t added one yet, click on New Organization and enter the Organization name. On the next page, select the Organization from the list if you have added one previously. You can find the enrollment URL in your Mobile Guardian portal at Devices → Add new School device → Apple Configurator.ĥ. Name the server and enter the server URL in the Enrollment URL field. To add a new server, select New Server. Add a new MDM server or select it from the list if you’ve added it previously. Allow devices to pair with other computers.Ĥ.Choose the manual configuration option with these selections:.Right-click the device and click on Prepare.Hook up your iOS device to your Mac and open Apple Configurator 2.5.Take note of where your profile is saved. From File → New Profile, set the General information and add a Wi-Fi payload. ![]()
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