使用bouncycastleprovider时代码生成错误

Question

我正在尝试使用带有二进制曲线的ECDSA生成签名（B163）。我也在使用Bouncy Castle图书馆。但它会产生这样的错误 -

sentence = input("What is your sentence? ")
List1 = sentnce.split(' ')
word = input("What word do you want to find? ")

counter = 0

while index<len(sentence):
    if word in List1[counter]:

如何解决此错误？

Exception in thread "main" java.lang.IllegalAccessError: tried to access method java.security.Provider.<init>(Ljava/lang/String;DLjava/lang/String;)V from class ECCKey
    at ECCKey.main(ECCKey.java:13)