ps=’1024′ salt=b’>}\x1a\xd5\xd3\x9d\x080′ a=hashlib.pbkdf2_hmac(‘sha256’,ps.encode(‘utf-8′),salt,100000) print(a) # this is the output a=b’\xfeI\x8f.6\xd8A1\x9aOMIB&\x81>\xd6t\xe3\xb1\xa2\xb2\xfen\xd9\x03\x84l\xf6q\xc2\xb8′ How Can I get the value back ‘1024’ i.e from a to ps again? >Solution : you can’t decrypt a sha256 hashed String (that’s what it is used for) you can only hash (and salt) another string and check if the hashes match (then you… Read More How to Decrypt a pbkdf2_hmac and SHA256 Encrypted String Stored in Database?

Python Code: signature = hmac.new(bytearray.fromhex(key), data.encode(‘utf-8’), hashlib.sha256).hexdigest() Solutions That I have tried var compute_hmac = crypto.createHmac(‘sha256’, key).update(data).digest(‘hex’); var compute_hmac = crypto.createHmac(‘sha256’, Buffer.from(key, ‘hex’).toString()).update(data).digest(‘hex’); const hmac = crypto.createHmac(‘sha256’, Buffer.from(key, ‘hex’)) Trying to validate webhook signatures of the following API https://developer.close.com/topics/webhooks/ data is the payload received, the same thing is passed to python and JS code. But… Read More Need JS equivalent

I’m using the JSON file from https://filesamples.com/samples/code/json/sample1.json With this JSON string as input and string abc123 as secret key, I’m trying to generate a HMAC SHA256 signature using the following python code. import hmac import hashlib import json secret = ‘abc123’ # Contents of sample1.json message = ”'{ "fruit": "Apple", "size": "Large", "color": "Red" }”’… Read More Python generates wrong HMAC SHA256 signature for JSON string