Collaborate Disseminate
When I use AES CBC, the encrypt function needs to get an input-buffer to encrypt + key + IV?
Is IV like one more key, or IV is generated by the key (so the encrypt function only needs to get the input-buffer to encrypt and t… Continue reading Understand aes cbc IV
I’ve been storing files using a filename of the md5 hash of the file. This allows me to not store duplicates of the same file and avoids any filename clashes. Each file has uses a different salt/iv.
I want to start encryptin… Continue reading Potential security issue with md5 filename
I have recently starting looking into AES encryption for a side project. I am researching this till now so if there is something wrong about my concept please correct it.
According to me If i want to encrypt something in AES… Continue reading How to use login details to make a key for AES encryption and decryption
I have the encrypted files, the random IV for each encrypted files and the counter increment function but I miss the key. Is there anyway for me to decrypt the files?
Continue reading Decrypt AES 128 CTR with the IVs (counter) but not the key
I was looking to encrypt some text files (containing sensitive data) so I could safely keep them online (e.g. Google drive).
I have found three options:
7-zip, which does AES-256
Encryptpad, which use OpenPGP symmetric enc… Continue reading Help me understand Encryptpad and 7-zip for encryption
I have JavaScript tied to an HTMl button, which does an AES-CGM encoding and logs the useful info to the console.
function strToArrayBuffer(str) {
let buf = new ArrayBuffer(str.length * 2);
… Continue reading Trailing garbage after Python decryption of JavaScript AES-CGM [migrated]
It seems both -kfile and -pass can be used to encrypt files with a 2048 bit keyfile? I don’t understand the difference between the two methods:
$ openssl enc -salt -aes-256-cbc -in inputfile.txt -kfile 2048bit_keyfile.key
$ openssl enc … Continue reading OpenSSL: what’s the difference between -kfile and -pass?
I am trying to make a folder encryption with maximum automation (except password input).
Inside a bash script I do the following:
echo $RANDOM | md5sum | cut -d’ ‘ -f1 > iv
and then using it:
openssl aes-128-cbc -m… Continue reading The way to determine IV for AES encryption, possible security problems with this approach
I have encrypted AES key stored in the database with the encrypted data. AES key is encrypted with a key derived from the passphrase. I want to ensure the integrity of the stored AES key. Is the checksum (SHA-256) of the plai… Continue reading Ensuring key integrity
I will now ask a strange question, but bear with me. I can’t share the entire usecase, but the point is to allow the holder of a secret key to create “strings” (used in other systems). The strings should be: non-reversible (=… Continue reading Is AES+hash rather than HMAC problematic?