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I can get a hmac sing using Python as following: import hmac, base64, hashlib def make_sign(): hash_data = "data" secret = "this is secret" sha512 = hashlib.sha512 hmac_obj = hmac.new(secret, hash_data, sha512) str_hash = hmac_obj.digest() sign = base64.b64encode(str_hash) hex_hash = hmac_obj.hexdigest() hex_sign = base64.b64encode(hex_hash) print "correct_sign:",sign print "hex_digest_sign:",hex_sign make_sign() output: correct_sign: Lg4pXNCIpitNQt2DLU19qWb+FxdsYZlK4LLncfkTzSidrYoFJLNolUziRqh09B5HyRdCTEP7enZp6/Te34FK1g== hex_digest_sign: MmUwZTI5NWNkMDg4YTYyYjRkNDJkZDgzMmQ0ZDdkYTk2NmZlMTcxNzZjNjE5OTRhZTBiMmU3NzFmOTEzY2QyODlkYWQ4YTA1MjRiMzY4OTU0Y2UyNDZhODc0ZjQxZTQ3YzkxNzQyNGM0M2ZiN2E3NjY5ZWJmNGRlZGY4MTRhZDY= but with js, I can get hex_digest_sign, but I need to get correct_sign for web request. function make_request() { hash_data = "data" secret = "this is secret" hmac = hmac_512(hash_data, secret) var sign = $.base64.encode(hmac), console.log("js_sign="+sign); } function hmac_512(message, secret) { var hmac = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA512, secret); hmac.update(message); var hash = hmac.finalize(); return hash; } js output: js_sign="MmUwZTI5NWNkMDg4YTYyYjRkNDJkZDgzMmQ0ZDdkYTk2NmZlMTcxNzZjNjE5OTRhZTBiMmU3NzFmOTEzY2QyODlkYWQ4YTA1MjRiMzY4OTU0Y2UyNDZhODc0ZjQxZTQ3YzkxNzQyNGM0M2ZiN2E3NjY5ZWJmNGRlZGY4MTRhZDY=" the correct sign is correct_sign: Lg4pXNCIpitNQt2DLU19qWb+FxdsYZlK4LLncfkTzSidrYoFJLNolUziRqh09B5HyRdCTEP7enZp6/Te34FK1g== how to get it in js?

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