{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the backend options available for password management in blockchain?","a":"Asymmetric encryption algorithms: Such as RSA, ECC (Elliptic Curve  Cryptography), etc., used for user authentication, data transmission encryption, etc."}]}],"pr":"c912f1f0a9d6a5589cd28dae85f805a5f34a7ce903cd56468aa85a64b704cd23"}