Cryptography Is it possible to use custom fonts to send an encrypted message? |
- Is it possible to use custom fonts to send an encrypted message?
- A Go implementation of Poly1305 that makes sense
- Padding Oracles in modern AES CBC with IV
- is it safe to change password? (veracrypt)
- We are launching Maskbook to ensure your privacies on social networks!!!
| Is it possible to use custom fonts to send an encrypted message? Posted: 03 Apr 2019 09:21 PM PDT I'm not sure if this is the right place to ask, but I'm curious to know whether:
The basic idea is this. A program generates a unique Unicode-to-character mapping based on a secret key. This information is then used to create a custom font, shared between Alice and Bob and installed in on their machines. Bob selects this font in his text editor and types a secret message. Alice receives Bob's message and is able to view the message using the custom font. An eavesdropper only sees random characters. Thanks in advance! [link] [comments]  |
| A Go implementation of Poly1305 that makes sense Posted: 03 Apr 2019 06:41 AM PDT |
| Padding Oracles in modern AES CBC with IV Posted: 03 Apr 2019 11:49 AM PDT Almost all info related to padding oracle attacks on AES are described in the context of client/server scenarios but does it apply to local encrypted files as well? For example, a file P is encrypted using AES-256 and CBC padding. The random IV and C are then written to a new file. If the attacker got hold of that file, could he then use whatever language he's using to try and decrypt that file and get exceptions that tell him whether he's dealing with padding errors or decryption errors? Ultimately, am I missing something or is AES, used to encrypt local/transmitted files, with appropriate IV still completely insecure in CBC? [link] [comments]  |
| is it safe to change password? (veracrypt) Posted: 02 Apr 2019 07:11 PM PDT Given a HDD with full disk encryption for cold storage (never seen the internet) but you want to change the password for whatever reason, is it safe to just use the menu (settings -> change password) and change the password? And I must create a new recovery boot CD after the password change? Also do you have to wipe the disk again? because I see "wipe mode:". holy shit do I need to go through this to change the password? I remember when I encrypted the disk it took like 2 days with the 3-wipe mode. If it has to be wiped then this means that its unsafe to begin with and i should do the whole process from scratch again? Also, what do you think about the "Do not show any texts in the pre-boot authentication screen" option? would this save your ass if someone breaks into your house demanding for a password? I think i would be paranoid to not be able to decrypt because I couldn't see the asterisks so I wouldn't be able to properly enter the password blindly but still it seems like a good idea to just have a blank screen.... anyone uses this and did you get used to typing the password blindly? [link] [comments]  |
| We are launching Maskbook to ensure your privacies on social networks!!! Posted: 03 Apr 2019 06:55 AM PDT Hi guys! We are a group of developers caring about user's online privacies. We are now launching Maskbook to help ensure your own privacy on social networks. It is a Chromium based browser extension that enables users to create encrypted posts and only the selected users (or entire friends group) can decrypt them. For now, we only support Facebook but will soon support other social network platforms. Also, this is open sourced at https://github.com/project-maskbook/Maskbook. Please!!! Let me know if you guys have any problems or concerns regarding our product or algorithms or schemes we are using. Any help is appreciated! Thanks!!!!! [link] [comments]  |
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