Method jwt

python/ccxt/base/exchange.py:1447–1480

(request, secret, algorithm='sha256', is_rsa=False, opts={})

    @staticmethod
    def jwt(request, secret, algorithm='sha256', is_rsa=False, opts={}):
        algos = {
            'sha256': hashlib.sha256,
            'sha384': hashlib.sha384,
            'sha512': hashlib.sha512,
        }
        alg = ('RS' if is_rsa else 'HS') + algorithm[3:]
        if 'alg' in opts and opts['alg'] is not None:
            alg = opts['alg']
        header_opts = {
            'alg': alg,
            'typ': 'JWT',
        }
        if 'kid' in opts and opts['kid'] is not None:
            header_opts['kid'] = opts['kid']
        if 'nonce' in opts and opts['nonce'] is not None:
            header_opts['nonce'] = opts['nonce']
        header = Exchange.encode(Exchange.json(header_opts))
        encoded_header = Exchange.urlencode_base64(header)
        encoded_data = Exchange.urlencode_base64(Exchange.encode(Exchange.json(request)))
        token = encoded_header + '.' + encoded_data
        algoType = alg[0:2]
        if is_rsa or algoType == 'RS':
            signature = Exchange.base64_to_binary(Exchange.rsa(token, Exchange.decode(secret), algorithm))
        elif algoType == 'ES':
            rawSignature = Exchange.ecdsa(token, secret, 'p256', algorithm)
            signature = Exchange.base16_to_binary(rawSignature['r'].rjust(64, "0") + rawSignature['s'].rjust(64, "0"))
        elif algoType == 'Ed':
            signature = Exchange.eddsa(token.encode('utf-8'), secret, 'ed25519', True)
            # here the signature is already a urlencoded base64-encoded string
            return token + '.' + signature
        else:
            signature = Exchange.hmac(Exchange.encode(token), secret, algos[algorithm], 'binary')
        return token + '.' + Exchange.urlencode_base64(signature)

    @staticmethod
    def rsa(request, secret, alg='sha256'):