Collaborate Disseminate
If I have the the plain text, the cipher text and the key for an AES-128 CBC operation, can I determine the IV, even if I don’t know the padding (assuming the padding follows one of the more common formats)?
I believe it sho… Continue reading Given the key, the plain text and the cipher text can I calculate the Initialization Vector used in AES [migrated]
I have read that GCM is almost always more secure than CBC when implemented correctly.
However, in the documentation of NodeJS, CBC is being used as an example instead. The key-pair will be stored in the node environment.
… Continue reading Why does the NodeJS Crypto docs use CBC instead of GCM for RSA key-pair?
I found information about KillerBee which sniffs Zigbee networks. Here is the tutorial: https://www.willhackforsushi.com/presentations/toorcon11-wright.pdf
My question, is since Zigbee Xbee can use AES-128 encryption key, and… Continue reading Can killerbee bypass AES-128 security?
New to file encryption. Need to use AES-GCM for file encryption, can’t change the alg. Heard about the max plain text size should be 64GB with same key and IV pair. Environment is python 3 with cryptography module.
Question:
As GCM is a s… Continue reading Should I chunk or not for AES-GCM file encryption
I’m considering encrypting a series of TAR archives using AES. Something I’m concerned about is the TAR format being quite predictable regarding field content and block sizes:
Each file object includes any file data, and … Continue reading Does knowledge of data structure compromise AES encryption?
This question might very well be more a confirmation than anything else, but I’m breaking my head over a problem I try to solve. I hope someone can either confirm my thoughts or tell me something I’m missing.
We are trying to setup a secu… Continue reading First setup security protocols (key transfer) in not-secure environment
NIST has completed a study — it was published last year, but I just saw it recently — calculating the costs and benefits of the Advanced Encryption Standard. From the conclusion: The result of performing that operation on the series of cumulated bene… Continue reading Calculating the Benefits of the Advanced Encryption Standard
NIST has completed a study — it was published last year, but I just saw it recently — calculating the costs and benefits of the Advanced Encryption Standard. From the conclusion: The result of performing that operation on the series of cumulated benefits extrapolated for the 169 survey respondents finds that present value of benefits from today’s perspective is approximately… Continue reading Calculating the Benefits of the Advanced Encryption Standard
I’m working on a project to encrypt many files with a single password.
The steps I will employ to encrypt the files are:
user will execute a command similar to tool –encrypt –recurse directories/to/recurse and-other-file… Continue reading Will using CTR mode with unique IVs, but only one password for encrypting multiple files, leak data or keys?
GCM (Galois/Counter Mode), in particular in combination with AES, has been a de-facto gold standard for years. Encrypt and authenticate in one step, that’s just too awesome, and terms like AEAD work well for impressing a girl… Continue reading What are the actual merits of Galois/Counter Mode?