I would like a random number for a program with the following qualities: Periodic: The random number needs to be random for a certain window of time. Preferably hourly but could be more. Once the period is over, the next…
I'm having trouble integrating the GMP library into my CMake project. Specifically, I'm struggling to configure CMake to automatically download and include GMP using FetchContent_Declare. I'm unsure about the necessary CMake configurations and whether additional steps like compilation or building…
I read a Certificate Signing Request in X.509 format. I have tried to parse it with the class X509Certificate from NodeJS 'crypto' library. The input format is a string -----BEGIN CERTIFICATE REQUEST----- MII.... -----END CERTIFICATE REQUEST----- I want to get…
const { hashGen } = require('crypto'); var hash = hashGen('sha256').update(hash).digest('hex'); I am being given the error: TypeError: hashGen is not a function I tried to create a password with a salt in front of it, and then hash it with…
I have an Android apk created from a Flutter project. I have added this apk to AppSweep and it returns the following issue: Legacy cryptographic classes used. Several classes in the java.security package have been marked as legacy and must…
This is my custom field that I call in a model. Migrations succeed and I'm able to insert an encrypted value into the data table. However, it will not decrypt. Here's the custom field class: class SecureString(CharField): """Custom Encrypted Field"""…
I am trying to create a signature in Dart using secp256k1. But I am generating different signature as compared to javascript. JavaScript Method as follows: import * as secp from "@noble/secp256k1"; const signature = await secp.sign(msgHash, hashingPrivateKey, { der: false,…
I have generated mnemonic using bip39.generateMnemonic();. I need to convert this mnemonic to AsymmetricKeyPair with secp256k1. AsymmetricKeyPair<PublicKey, PrivateKey> secp256k1KeyPair() { var keyParams = ECKeyGeneratorParameters(ECCurve_secp256k1()); var mnemonic = getMnemonic(); var seed = bip39.mnemonicToSeed(mnemonic); print('mnemonicToSeed=========$seed'); var random = FortunaRandom(); random.seed(KeyParameter(seed)); var generator…
I'm working on a module where I'm evaluating method to add thumbprint (x5t#256) value to all public keys present in the DB. Conversion using javascript libraries, java libraries is doable. however trying to convert the same using pgcrypto doesn't seem…
How can I check if a file uploaded through an input field has a signature? After converting it to Base64, what is the process to verify if it contains any signature?