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  • PHP 2-way encryption: I need to store passwords that can be retrieved

    - by gAMBOOKa
    I am creating an application that will store passwords, which the user can retrieve and see. The passwords are for a hardware device, so checking against hashes are out of the question. What I need to know is: How do I encrypt and decrypt a password in PHP? What is the safest algorithm to encrypt the passwords with? Where do I store the private key? Instead of storing the private key, is it a good idea to require users to enter the private key any time they need a password decrypted? (Users of this application can be trusted) In what ways can the password be stolen and decrypted? What do I need to be aware of?

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  • iPhone - AES256 Encryption Using Built In Library

    - by Robert
    Hey all, I am using http://pastie.org/966473 as a reference as all I need to do is encrypt something using AES256 encrypting. I created a class and put the implementation in the pastie on top of the implementation for my class. @implementation //pastie code @end @implementation //my class code @end In my class code I create a NSMutableData and try to call the EncryptAES method and I get a warning saying it might not respond to that. What am I doing wrong here? do I need to implement the pastie code elsewhere? Thanks for any help.

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  • android database encryption

    - by user121196
    android uses sqlite database to store data, I need to encrypt the sqlite database, how can this be done? I understand that application data is private. However I need to explictly encrypt the sqlite database that my app is using.

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  • SQl server 2008 permission and encryption

    - by paranjai
    i have made columns in some of the tables encrypted in sql server 2008. Now as i am a db owner i have the access to encode and decode the data using the symmetric key and certificate. But some other users have only currently datareader and datawriter rights ,and when they execute any SP referring the logic which uses the key and certificate "User does has not right on the certificate to execute". What rights / exact permission should i grant them just to solve this problem

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  • Implementing One-way Encryption in PHP

    <b>Webreference:</b> "To demonstrate one-way encryption in PHP, this article describes how to start building a secure online diary application. The one-way encryption will allow the diary to log a user in and generally encrypt the contents of the file that it loads."

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  • How do I remove encryption from a VMware Workstation 7 image?

    - by Chad
    I successfully encrypted a VM image and confirmed it still runs. I then closed the VM and reopened it and confirmed the encryption password was valid and worked. However, now I want to un-encrypt the VM. When I choose that option, it asks for "your password". I assume this means the password I created when I encrypted it. It doesn't work. I can still open the VM with the password and run it. But, it refuses to remove the encryption using that password. Am I missing something? Is there a password that I don't know about? Some details: I created this image (using standalone converter; physical machine source) I converted it to ACE Converted back to a normal VM (un-ACE'd it) Encrypted it Cannot remove the encryption but can open it and run it As you can see... I am exploring the VMware features. Thanks for any guidance you can give.

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  • How do I remove encryption from a VMware Workstation 7 image?

    - by Chad
    I successfully encrypted a VM image and confirmed it still runs. I then closed the VM and reopened it and confirmed the encryption password was valid and worked. However, now I want to un-encrypt the VM. When I choose that option, it asks for "your password". I assume this means the password I created when I encrypted it. It doesn't work. I can still open the VM with the password and run it. But, it refuses to remove the encryption using that password. Am I missing something? Is there a password that I don't know about? Some details: I created this image (using standalone converter; physical machine source) I converted it to ACE Converted back to a normal VM (un-ACE'd it) Encrypted it Cannot remove the encryption but can open it and run it As you can see... I am exploring the VMware features. Thanks for any guidance you can give.

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  • Windows 8.1 Will Start Encrypting Hard Drives By Default: Everything You Need to Know

    - by Chris Hoffman
    Windows 8.1 will automatically encrypt the storage on modern Windows PCs. This will help protect your files in case someone steals your laptop and tries to get at them, but it has important ramifications for data recovery. Previously, “BitLocker” was available on Professional and Enterprise editions of Windows, while “Device Encryption” was available on Windows RT and Windows Phone. Device encryption is included with all editions of Windows 8.1 — and it’s on by default. When Your Hard Drive Will Be Encrypted Windows 8.1 includes “Pervasive Device Encryption.” This works a bit differently from the standard BitLocker feature that has been included in Professional, Enterprise, and Ultimate editions of Windows for the past few versions. Before Windows 8.1 automatically enables Device Encryption, the following must be true: The Windows device “must support connected standby and meet the Windows Hardware Certification Kit (HCK) requirements for TPM and SecureBoot on ConnectedStandby systems.”  (Source) Older Windows PCs won’t support this feature, while new Windows 8.1 devices you pick up will have this feature enabled by default. When Windows 8.1 installs cleanly and the computer is prepared, device encryption is “initialized” on the system drive and other internal drives. Windows uses a clear key at this point, which is removed later when the recovery key is successfully backed up. The PC’s user must log in with a Microsoft account with administrator privileges or join the PC to a domain. If a Microsoft account is used, a recovery key will be backed up to Microsoft’s servers and encryption will be enabled. If a domain account is used, a recovery key will be backed up to Active Directory Domain Services and encryption will be enabled. If you have an older Windows computer that you’ve upgraded to Windows 8.1, it may not support Device Encryption. If you log in with a local user account, Device Encryption won’t be enabled. If you upgrade your Windows 8 device to Windows 8.1, you’ll need to enable device encryption, as it’s off by default when upgrading. Recovering An Encrypted Hard Drive Device encryption means that a thief can’t just pick up your laptop, insert a Linux live CD or Windows installer disc, and boot the alternate operating system to view your files without knowing your Windows password. It means that no one can just pull the hard drive from your device, connect the hard drive to another computer, and view the files. We’ve previously explained that your Windows password doesn’t actually secure your files. With Windows 8.1, average Windows users will finally be protected with encryption by default. However, there’s a problem — if you forget your password and are unable to log in, you’d also be unable to recover your files. This is likely why encryption is only enabled when a user logs in with a Microsoft account (or connects to a domain). Microsoft holds a recovery key, so you can gain access to your files by going through a recovery process. As long as you’re able to authenticate using your Microsoft account credentials — for example, by receiving an SMS message on the cell phone number connected to your Microsoft account — you’ll be able to recover your encrypted data. With Windows 8.1, it’s more important than ever to configure your Microsoft account’s security settings and recovery methods so you’ll be able to recover your files if you ever get locked out of your Microsoft account. Microsoft does hold the recovery key and would be capable of providing it to law enforcement if it was requested, which is certainly a legitimate concern in the age of PRISM. However, this encryption still provides protection from thieves picking up your hard drive and digging through your personal or business files. If you’re worried about a government or a determined thief who’s capable of gaining access to your Microsoft account, you’ll want to encrypt your hard drive with software that doesn’t upload a copy of your recovery key to the Internet, such as TrueCrypt. How to Disable Device Encryption There should be no real reason to disable device encryption. If nothing else, it’s a useful feature that will hopefully protect sensitive data in the real world where people — and even businesses — don’t enable encryption on their own. As encryption is only enabled on devices with the appropriate hardware and will be enabled by default, Microsoft has hopefully ensured that users won’t see noticeable slow-downs in performance. Encryption adds some overhead, but the overhead can hopefully be handled by dedicated hardware. If you’d like to enable a different encryption solution or just disable encryption entirely, you can control this yourself. To do so, open the PC settings app — swipe in from the right edge of the screen or press Windows Key + C, click the Settings icon, and select Change PC settings. Navigate to PC and devices -> PC info. At the bottom of the PC info pane, you’ll see a Device Encryption section. Select Turn Off if you want to disable device encryption, or select Turn On if you want to enable it — users upgrading from Windows 8 will have to enable it manually in this way. Note that Device Encryption can’t be disabled on Windows RT devices, such as Microsoft’s Surface RT and Surface 2. If you don’t see the Device Encryption section in this window, you’re likely using an older device that doesn’t meet the requirements and thus doesn’t support Device Encryption. For example, our Windows 8.1 virtual machine doesn’t offer Device Encryption configuration options. This is the new normal for Windows PCs, tablets, and devices in general. Where files on typical PCs were once ripe for easy access by thieves, Windows PCs are now encrypted by default and recovery keys are sent to Microsoft’s servers for safe keeping. This last part may be a bit creepy, but it’s easy to imagine average users forgetting their passwords — they’d be very upset if they lost all their files because they had to reset their passwords. It’s also an improvement over Windows PCs being completely unprotected by default.     

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  • How secure is the encryption used by Microsoft Office 2007?

    - by ericl42
    I've read various articles about Microsoft's Office 2007 encryption and from what I gather 2007 is secure using all default options due to it using AES, and 2000 and 2003 can be configured secure by changing the default algorithm to AES. I was wondering if anyone else has read any other articles or know of any specific vulnerabilities involved with how they implement the encryption. I would like to be able to tell users that they can use this to send semi-sensitive documents as long as they use AES and a strong password. Thanks for the information.

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  • Full disk encryption on linux (ubuntu) w/o re-installing - possible?

    - by sa125
    Hi - I work at a company that takes security very seriously (like most). Our IT guy came in today to prepare us mentally to re-install our systems after he'll apply the new encryption policy (which will basically scrape our HD clean). For our team this means about a week of re-configuring, installing, and tweaking our desktops until we are back to work capacity - anyone who has to re-install a development machine probably knows what I'm talking about. So, I guess my question is if there's any way to perform full disk encryption on a linux (ubuntu = 9.04) system without having to re-install EVERYTHING [sigh]. IT guy said there isn't any - please prove him wrong. thanks :)

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  • Verify p2p node

    - by mazzzzz
    Hey guys, I have been working on a p2p namespace for some of my programs. I created a system to encrypt/decrypt the packets send/received with the class. I was using the basic public private key system: 1) encrypt the data with Symmetric encryption 2) encrypt the symmetric key with RSA. Then do the opposite when you decrypted.. I was wondering though, how would you verify if the packet was coming from where it said it was. I was going to use a basic certificate system (where you encrypt with your private RSA key, then they decrypt it with your public key), but I don't know how to do this with C#. I am using the RSACryptoServiceProvider class. Does anyone know how do this? Thanks, Max

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  • javax.crypto AES encryption - Do I only need to call doFinal?

    - by Spines
    I want to do AES CBC encryption in Java. I'm using javax.crypto. After I have the Cipher initialized, do I only need to call doFinal on the clear bytes to properly encrypt it? Or do I need to do something with update? Documentation says update: Continues a multiple-part encryption or decryption operation and doFinal Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation what exactly do they mean by multiple-part encryption?

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  • Transparent Data Encryption Helps Customers Address Regulatory Compliance

    - by Troy Kitch
    Regulations such as the Payment Card Industry Data Security Standards (PCI DSS), U.S. state security breach notification laws, HIPAA HITECH and more, call for the use of data encryption or redaction to protect sensitive personally identifiable information (PII). From the outset, Oracle has delivered the industry's most advanced technology to safeguard data where it lives—in the database. Oracle provides a comprehensive portfolio of security solutions to ensure data privacy, protect against insider threats, and enable regulatory compliance for both Oracle and non-Oracle Databases. Organizations worldwide rely on Oracle Database Security solutions to help address industry and government regulatory compliance. Specifically, Oracle Advanced Security helps organizations like Educational Testing Service, TransUnion Interactive, Orbitz, and the National Marrow Donor Program comply with privacy and regulatory mandates by transparently encrypting sensitive information such as credit cards, social security numbers, and personally identifiable information (PII). By encrypting data at rest and whenever it leaves the database over the network or via backups, Oracle Advanced Security provides organizations the most cost-effective solution for comprehensive data protection. Watch the video and learn why organizations choose Oracle Advanced Security with transparent data encryption.

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  • Encryption password

    - by George
    I am running Ubuntu 12.04 LTS I thought that everything in my Documents folder was being backed up by Ubuntu1, as everytime I put a file in my documents folder a box popped up stating backing up file. When I looked at the Left hand list of programmes on my desktop screen there was an extra Box in the list. Clicked the Box and it stated encryption Password required. It seems the latest files have not been backed up as an Encryption Password is required. Can anyone explain for me, what is this Encription Password and how do I get it.

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  • Transparent Data Encryption (TDE) in SQL Server

    There are several ways to implement encryption in SQL Server; Arshad Ali focuses on Transparent Data Encryption (TDE), which was introduced in SQL Server 2008 and is available in later releases. 24% of devs don’t use database source control – make sure you aren’t one of themVersion control is standard for application code, but databases haven’t caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out…

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