text: import donna25519 as curve25519
  import binascii
  import hashlib
  
  print()
  print('指纹字符串为：010011011011011000011100000100')
  x = hashlib.sha256('010011011011011000011100000100'.encode('utf-8')).hexdigest()
  print('sha256加密后的32字节私钥为：', x)
  x = binascii.unhexlify(x)
  
  private = curve25519.PrivateKey(x)
  public = private.get_public()
  #print('Curve25519加密后的私钥为：', int(binascii.hexlify(private.private), 16))
  print('Curve25519加密后的公钥为：', str(hex(int(binascii.hexlify(public.public), 16))).replace('0x',''))
  