《死亡诗社》(Dead Poets Society)拍摄于1989年，讲的是一位反传统的教师教学生诗歌、生活的故事。背景是在威尔顿预科学院这座传统学校，从这里毕业的学生都能申请到很好的大学，类似于我们的衡水中学，新来的教师 Keating 没有使用传统的教学方法，他教学生们解放思想，不局限于课本。 第一堂课他带着学生去了著名校友墙，让他们聆听死者的声音，这些人当年多么风光，多么不可一世，现在也只存在于相片之中，固一世之雄也，而今安在哉？历史总是在不断重复，相片中的他们和自己很相像，不同的是我们还活着，我们还有无限可能，这时候Keating对他们说 Carpe diem，其意为 seize the day，很多人翻译为及时行乐，要过好每一天。 最经典的桥段肯定是Keating在教室说出： “We don’t read and write poetry because it’s cute. We read and write poetry because we are members of the human race. And the human race is filled with passion. And medicine, law, business, engineering, these are noble pursuits and necessary to sustain life. But poetry, beauty, romance, love, these are what we stay alive for. " 这里 sustain 这个词用的很好，可以翻译为维持，现在所学的很多东西都是用来维持生活，而 poetry, beauty, romance, love 是我们生活的意义所在。 ...

This is my first blog. I’ve wanted to create a blog for a long time, but I didn’t realize it due to laziness. In this blog, I will share and record my life using English. Hope i can keep going. Well, now, I’m off to write the patent.

1. Intro Hi, everyone. I’m Liang Li. It’s really a great pleasure to be here and I am very happy to introduce our paper: Bilateral Secure and Decentralized Crowdsourcing Task Matching Atop Consortium Blockchain. The co-authors include Haiqin Wu… 2. What is Crowdsourcing? First of all, we review what is crowdsourcing. Crowdsourcing relies on numerous people working collaboratively to solve complex problems. For example, a company wanting to collect weather data in Shanghai can recruit individuals to report weather conditions from various districts. This approach is cost-effective, fast, and creative compared to traditional outsourcing. ...

红楼梦第二十六回： 颦儿才貌世应希，独报幽芳出绣闺； 呜咽一声犹未了，落花满地鸟惊飞。 写人美竟能如此清新脱俗，做个注解倒显得俗气

灵活撤销 Direct revocation The DO encrypts files with a separate revocation list (as a policy), preventing revoked users from decrypting the ciphertext while non-revoked DUs remain unaffected. However, all DOs must maintain an ever-growing revocation list, increasing ciphertext size over time. Limitations: Ciphertext size is linearly increasing with the number of revoked users. Users are represented with a unique ID. No anonymous. Indirect revocation A timestamp is embedded in the ciphertext, and the KGC periodically updates the private keys of non-revoked DUs. Revoked DUs cannot obtain valid key updates to decrypt future ciphertexts. Q: The revoked users can decrypt past ciphertexts they were originally allowed to. ...