Encryption is the process of transforming plaintext using a cipher to make it unreadable to anyone except those possessing the key.

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Are there any alternatives to EFS for transparently encrypting the contents of a folder in Windows?

EFS is not an option for me because I'm using Windows 7 Home Premium. I am looking for folder encryption, not drive encryption.
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1answer
79 views

Where to store hashes, salts, keys in Desktop Applications

I am trying to figure out where or how i should store application secrets and keys inside a desktop application. For example a facebook app key or dropbox key and secret. So I've read that i should ...
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0answers
64 views

Could other people steal my Internet connection if they had my PPPoE data?

Would it be possible for other people to use my PPPoE data to get Internet access or is it somehow restricted to my house? Then what about my neighbors downstairs, could they do it? And what about ...
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2answers
247 views

Secure database password stored in an env variable

I need to somewhere store my DB password on my production environment to access the DB. At the moment the prod system is deployed in the cloud, so is the DB. The password, the username and some other ...
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1answer
68 views

Is SQL Server 2016's Deterministic Encryption any good?

I'm seeing that MS just released a new version of SQL Server which supports deterministically encrypting a column, so that you can still query it: ...
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0answers
42 views

How can I use session salt for encrypting data using AES in CTR mode?

I have to implement a crypto-plugin in Java. The approach followed is conceptually similar to that used for SRTP. The algorithm used for data confidentiality is AES in CTR mode (I'm following a ...
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0answers
23 views

What type of security does Gazzang zNcrypt provide?

We have just planned to implement the same in our organization, and I believe this will encrypt files and data on disk. I have two questions: Does it provide column level encryption in database (if ...
2
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2answers
1k views

What does Gazzang zNcrypt actually protect against?

In an effort to increase security of our website, I'm reading up on Gazzang zNcrypt, which claims to protect data in databases from breaches. Technically, it seems to do filesystem encryption. As far ...
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2answers
59 views

secure notebook options [closed]

How can I secure my notebook with highly sensitive information stored in a spreadsheet. I am keeping the following options in mind: Password protect & encrypt BIOS Full disk encryption Password ...
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1answer
27 views

Can DUKPT BDK be 192 bits?

All examples seem to be with 128 bits. Can it be 192 bits?
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1answer
63 views

Sketchy traffic from port 3030?

I am running tests on a server that is ran by a close family friend, who agreed to allow me to do so in exchange for the experience I will gather (I am currently a computer science student). On ...
3
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2answers
353 views

Converting ECC Private key to PKCS#1 format

Is there any way to convert an ECC private key to RSA PKCS#1 format? I have tried converting it to PKCS#8 first using OpenSSL: openssl pkcs8 -topk8 -nocrypt -in EC_key.pem -out pkcs8_key.pem This ...
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0answers
64 views

WhatsApp Password generation [closed]

Is it known how the WhatsApp-Servers generate the password for the user? My Google-Fu is not strong enough to find it out by myself. For reference (Step 6 / 2, I mean the step in which the server ...
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0answers
35 views

Hashed master password and generated encryption key in a password manager program

I'm writing a WPF password manager application to practice programming, so far this is the scheme I intend to use to store master password and individual site password: Master password: Generate a ...
0
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1answer
85 views

Decrypting .P7M File with Key (.pem) using OpenSSL

My knownledge about security is limited so I need some help here. The Question I want to Decrypt a .P7M file using its private key (.pem). I would prefer to use OpenSSL for this. Tried so far ...
2
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1answer
24 views

Does endianness affect encryption keys and initialization vectors?

When encrypting (specifically when using AES) content, will endianness affect how the key (and/or initialization vector) should look when encrypting/decrypting content? And could this depend on the ...
0
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1answer
175 views

Publicly Available API + Sensitive ID/Key Transmission Over HTTP

I've run into a predicament... I'm developing a mobile application that utilizes a server for various things. One portion is that it stores an id/key pair related to accessing and processing ...
4
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2answers
104 views

PKI/Why does Microsoft require my cert before encrypting an email?

Microsoft doesn't allow sending public-key encrypted messages using Outlook 2003-2012 on Windows 7-8x environments without first creating your own Digital ID or private key for signing. Per ...
2
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1answer
110 views

Difference between fully homomorphic and semi-homomorphic encryption

What is the difference between fully homomorphic and semi-homomorphic encryption?
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3answers
3k views

Why do PGP master keys only have a single subkey, and tie certification with signing by default?

After learning more about PGP subkeys and how to split apart the roles of (S)igning, (E)ncryption, (A)uthentication and (C)ertification, I discovered that in most cases(?) a default master key has a ...
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3answers
2k views

Password protected zip opened in notepad

I have two password protected zip(COmpression method: normal) file with the same content(aaa.txt(blank notepad)) and I opened the zips and this came up. First one's password is: abcd PK Rd¦D ...
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1answer
831 views

Improving stateless REST API authentication token - or ditch it for database persistence?

I'm looking to implement stateless REST authentication into an API. I've been reading up on articles here, and have implemented an idea that works, but I was hoping to get some feedback on its ...
0
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0answers
59 views

Is facebook to facebook (mobile application call ) encrypted?

I understand facebook uses WebRtc to send voice data packet in network if any one end client is on the browser. Use of DTLS packets can be seen in captured (wireshark) file. But in case of mobile app ...
2
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0answers
36 views

How can I recover data after luksFormat? [migrated]

How can I recover data after luksFormat? It was late one night when I decided to try gnome-shell 3.16 without messing up my Ubuntu box. So, I downloaded an Antergos image and booted it. I was maybe ...
0
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1answer
48 views

Is SESSION is safe for transferring encrypted email and password in PHP

I am working on a project where I am using PHP_SESSION, Somewhere I heard that PHP_SESSION are quite unsafe for passing valuable data so I have to know what are the security flaws, how it can be ...
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2answers
176 views

Storing encryption key in a cookie?

I have a website issue that I am addressing by storing an encryption key in a cookie. I want to describe my issue and my solution, and see if someone smarter about such things than I thinks this is a ...
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1answer
70 views

iOS 8 encryption vs Android Lollipop encryption

iOS 8 includes encryption that is enabled by default, whereas in Android it is optional. Do both operating systems decrypt everything on boot and then the PIN is used to unlock it until it is turned ...
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1answer
100 views

toy OpenPGP encryption with manually generated keys

I've been playing around with OpenPGP encryption for a little while. Here are the steps I've followed: Generate an unencrypted public/private key pair in my keyring with gpg --gen-key. Dump the ...
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0answers
38 views

Completely filling up unused space in TrueCrypt container?

Right now, I am fooling around with Truecrypt and I definitely want to protect my private data on a USB stick. So there are two ways of doing this. Either with a container or completely encrypting the ...
2
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1answer
141 views

How to tell if my OpenPGP public key is self-signed?

I recently read: You should sign your PGP public key immediately after generating your public/private key-pair. And now I wonder how I can check whether I already did that. So my question is: ...
2
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1answer
35 views

Best practice of deprecating old OpenPGP subkeys when migrating to a new subkey pair?

I've been using GnuPG with an offline master + online subkey setup for a while now. All my email is signed with the signing-only subkey and encryption is done with the encryption-only subkey. The ...
0
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2answers
76 views

Can I VPN a phone's connection to my home network, and then apply my home firewall to my phones network connections?

I have a decent firewall/router at home, and I was wondering whether it would be possible to use my home firewall for the connections that my phone makes, even when I'm not at home. It would mean ...
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2answers
82 views

How is encryption broken [duplicate]

The title describes pretty well what I want to ask, because I just can't wrap my head around it. I understand the basics of breaking encrypted data with the method of kind-of-bruteforcing where you ...
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1answer
66 views

What encryption is this? [closed]

7c4a8d09ca3762af61e59520943dc26494f8941b This is 123456, I don't know what kind of encryption it is and all the passwords are saving as it in my database so i need to know
3
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1answer
69 views

Why is plain dm-crypt only recommended for experts?

I am curious about the following claim from the Cryptsetup FAQ: 2.4 What is the difference between "plain" and LUKS format? First, unless you happen to understand the cryptographic background ...
2
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2answers
137 views

Save application autostart login token on computer

I need to login desktop application while autostart on server (like skype does). What is the best practice to save authentication token (password)? Should I use something like RSA encryption (which ...
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0answers
15 views

Would BitLocker and SysKey be a possible and good security combo? [migrated]

Is it possible to have Bitlocker and SysKey work together on a Windows machine? If so, could you have them both work on a single USB thumb drive? Would the Thumb Drive have to be partitioned? If no, ...
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2answers
24 views

Advantages of Enabling Firmware Password Protection

What security advantages, if any, would be gained by enabling Firmware Password Protection on a mac that allready has filevault encryption for the disk?
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0answers
55 views

If someone hacks our server, how can we prevent them from decrypting data stored in Vault?

I have been tasked with evaluating Vault in our company and the first question asked by an architect was: If someone hacks our server, how can we prevent them from decrypting data stored in Vault? ...
3
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3answers
92 views

Authenticity of PDF document printed from Word

My MS Word Add-In generates PDF preview of DOCX file on client PC and uploads both files to server. I cannot generate PDF on server. Is there any way to make sure that the PDF is the printed version ...
35
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8answers
4k views

Is full disk encryption on a server in a secure data center pointless?

I am having a debate with several people regarding how much protection full disk encryption provides. dm-crypt is being used to encrypt data which is required by my company to be encrypted at rest. ...
39
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7answers
8k views

Why isn't open WiFi encrypted?

As far as I understand, WiFi networks that require no password send traffic through the air unencrypted. Those that require a password encrypt each connection uniquely, even if they're all using the ...
-1
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4answers
127 views

What mail applications use crypto?

I just read that everyone in the world can ready my mails (if intercepted in traffic by eavesdropping?). Also, it reads that current versions (book's from 2004 so I assume that new versions adopt ...
0
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1answer
67 views

Server full disk encryption protection from malware

A group of LINUX servers is using dm-crypt to encrypt data. The servers do not store data long-term but are only temporary stopping points for data before it is sent to other systems. The time the ...
6
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0answers
59 views

How to make sure that the cryptographic hardware accelerator is being used in am335x?

I want use the AES hardware accelerator in am335x. I was able to generate the cryptodev.ko and cryptosoft.ko. From my application program I am making use of openssl apis in CBC mode. I wanted to ...
0
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4answers
305 views

Is end to end email encryption possible without unique domain/subdomain for each user?

Lets say Alice@gmail.com wants to send message to Bob@secureMail.com Alice <--> gmail.com <--> secureMail.com <--> Bob We know gmail.com can read the unencrypted message. Is it possible for ...
2
votes
5answers
3k views

Does the padlock on my browser really indicate a reasonable assurance against eavesdropping?

I know that there have been broken or weak SSL implementations. Do browsers actually have decent standards for what they'll accept and display "the padlock"? Furthermore, are there any practical ...
3
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1answer
2k views

can I trust Boxcryptor closed source software? Encryption of files for cloud hoster

Boxcryptor https://www.boxcryptor.com is not Open Source. Can I trust this? Is it secure? No government backdoor? Because there is no alternative for OS X and iOS.
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2answers
164 views

RSA public key and private key lengths

I'm having a problem understanding the size of an RSA public key and its private key pair. I saw different key sizes for RSA algorithm (512, 1024,... for example), but is this the length of public ...
2
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3answers
4k views

Is Aescrypt a valid tool for encryption or not?

I'd like to know if Aescrypt is a valid tool, or if for a very secure protection, the only choice is to use a software like gpg, or similar. More I've another curiosity, if one doesn't want to use ...