下载附件经过两次base64解码后结果为:I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation.
后续不知道如何解出,请老师和同学们解答疑惑,谢谢!
段落引用 SSBhbSBoYXBweSB0byBqb2luIHdpdGggeW91IHRvZGF5IGluIHdoYXQgd2lsbCBnbyBkb3duIGluIGhpc3RvcnkgYXMgdGhlIGdyZWF0ZXN0IGRlbW9uc3RyYXRpb24gZm9yIGZyZWVkb20gaW4gdGhlIGhpc3Rvcnkgb2Ygb3VyIG5hdGlvbi5= …………………………
解密后,为一段base64的,这是base64隐写,base64后2bit位可以隐写数据,写代码求解