I want to use HMAC to verify data integrity transmitted between our IOS\Android mobile app and API,I want to prevent data tempering either by authenti ...
There are ample examples on how to do Diffie-Hellman key agreement to compute a shared secret. However, I could not find any example on how to do 3DH ...
I have the following information: Using the above, I need to calculate the master key and the keyblock. The correct answer should be: My Code is ...
I have the following in python and want to transfer this to ruby. but i don't get it working. The original source is from here: https://github.com/Hur ...
I saw a code snippet that generates an AES key by the following steps: Generate a 16-byte random value array. apply the HKDF to the key to gen ...
Im trying to use the SecKeyCopyKeyExchangeResult function to obtain the shared secret from my local private key and received public key of server. Sha ...
In order to understand ECIES completely and use my favorite library I implemented some parts of ECIES myself. Doing this and comparing the results led ...
I'm trying to decrypt a message using Elliptic Curve Cryptograph ECDiffieHellman using KDFX963 as a key derivation function (KDF) (defined in ANSI-X9. ...
I know that there are similiar questions here but still I didn't find a clear answer. Is it possible to derive the session key with the .NET library w ...
It seems like the Go ecosystem just has a basic bcrypt implementation (golang.org/x/crypto/bcrypt) and it's left as an exercise for the developer to e ...
The Bouncy Castle Diffie-Hellman documentation speaks of using "user keying material" and a KDF when deriving ephemeral keys from a static long term k ...
I have used the https://github.com/ricmoo/GMEllipticCurveCrypto to generate a Shared Secret using ECDH Algorithm. I now have to Generate a Derived Ke ...
I have 5 different strings that I want to use as a key. They are: I want to perform an encryption using EVP OpenSSL like this: https://www.openssl. ...
I have a requirement which states. use, to calculate the Shared Secret Z, the Static Unified Model, C(0e, 2s, ECC CDH)Key Agreement technique (as spe ...
First, I want to say that this is just an learning exercise and I do not intend to use this in production. I wrote a small application in Golang with ...
I have a value encrypted with cryptoJS (AES) and need to decrypt using Erlang crypto library. The problem for me lies in the fact that to be able to d ...
A few months ago I entered to cryptography, and I have a doubt. Technically, a PBKDF, converts any password (with any keylength), to a one key with a ...
I've been looking all over for an implementation of the PRF function from RFC 2246. I've found three. One here, one from the openSSL library, and one ...
For example, the command: outputs something like: How is that key generated? (C code as an answer would be too awesome to ask for :) ) Also, how ...
Delving into the java encryption and hashing world I see examples of the constructor for the PBEKeySpec class with various values for the iterationCo ...