Collaborate Disseminate
How can I get decryption key for AES-128 encrypted HLS stream.
In the m3u8 file, the URI for key leads to a file which is of 48 bytes which is encrypted.
The stream is played by browser so it must have the true decryption key, how can I ge… Continue reading Get HLS decryption key from browser
I’ve read a lot of documentations about encryption in the last weeks and I think I now have a good idea of what system I will use for my project (standard hybrid cryptosystem using RSA/AES). However, there is still an unanswered question a… Continue reading Encryption/decryption at client or server side with hybrid cryptosystem?
I am trying to migrate off of firebase, as in doing so, you can export the hashes of user passwords. Looking at their algorithm, they do not store password hashes, but rather, they use the first 32-characters of a password hash to encrypt … Continue reading Why does firebase encrypt with password hashes instead of storing the hashes?
I am trying to Use AES to store passwords for a password manager. For authentication I am already using bcrypt. As AES uses 256 bit Key can I use SHA256 to generate 256 bit key from hashed value of bcrypt(Not talking about hash saved in Db… Continue reading Is using SHA256 to create 256bit secret key from bcrypt good ok?
I want to share AES key using RSA. What is the recommended/widely used format for encrypting the AES key and its attributes with the public key? I know that PKCS#7/CMS enveloped-data allows encrypting any key with its attributes using a ce… Continue reading Key Exchange using RSA public key without a certificate
I have a library which implements AES GCM algorithm. However, as you know even a single nonce reuse can have catastrophic results.
As we can’t guarantee a unique IV every time, I would like to run the SIV (Synthetic Initialization Vector) … Continue reading AES GCM SIV implementation [migrated]
I have a file which is encrypted using AES 128 and I have a key file whose size is 48 bytes. How can I decrypt the file using the key file?
The key file has no extension, I opened it in notepad and it has bizarre text.
I have IV as 0x496da… Continue reading Decrypt AES 128 encrypted file with a key file
I am trying to send a password from a client to the server. I just don’t know how to encrypt it.
method:
I used a website (Instagram) as a guide here.
Here the password is encrypted with AES and the key is then encrypted with a Curve25519… Continue reading Curve25519 vs. Curve25519 and AES Key vs. Curve25519 AES Ciphertext (Instagram)
Just yesterday I decrypted this same file using a key that I have written down, but today every time I try the same key gpg returns:
gpg: decryption failed: Bad session key
I suspect that either I was typing something wrong every time I … Continue reading gpg stopped decrypting a symmetrically encrypted file
I am trying to understand an encryption process on a website (Instagram). As far as I know, a public key is sent from the server to the client. Then the password is encrypted with AES_GCM_256 and packed together with the AES key in an arra… Continue reading Why is a password encrypted with AES and then sent back to the server together with the key with RSA (Instagram)?