清华女破解北斗系统信号 拱手送美国

骗子越来越多。白痴也越来越多。

从这个女的眼神只看到精神病人的特质，没觉得是美女。

说出来比掖着好。

很显然，作者不知道一个非常浅显的密码算法的基本设计原则，那就是即便是参与密码设计的人员，也没有破解密码的便利。大家每天网络交易用到的民用算法都能轻易做到这一点，中国和欧洲的军用密码系统岂是如此低劣？现代密码的破解只有两条路，一条是找到算法中的缺陷，另一条是超级计算机穷举。此女显然两者都不是，换句话说，她还什么都没破解。一只脚踏进雷区，和从雷区走出来可是有天大的区别，因为现代密码学的雷区几乎就没人能走出来。

完全不懂密码学的人写的文章，作者也不知道什么叫破解。像北斗或伽利略的军用部分，不仅有许多组密钥，许多次迭代，连加密算法都是可以更新上传的。换句话说，即便你能破解一小部分，我也能立即修复。更何况，任何一组都是当今世界最强大的超级计算机需耗时成千上万年才能破解的。反问一句，如果此女真的能破解了，为什么不给她个菲尔兹奖呢？

也没什么，系统还没广泛应用，补救的方法多得很。。。

颁发江湖追杀令. 其实仅仅是根据提供的算法跟踪到北斗导航信号而已. 有什么了不起.

猜测：破解以后，原理上说，无法再更改加密系统，除非有第二个独立的加密系统。不得以的办法，已上去的废止使用，新上去的用新系统。

任何东西都有被破解的可能，但这么破解，让人很难接受。 建议国家成立锄奸团，对严重损害国家利益者，杀无赦。

唉! 清华美女 SEE BACK, NO BABY!

Compass-M1 Code Analysis Reverse-engineered pseudorandom noise (PRN) codes in all frequency bands (E2, E5b & E6) of the first Chinese global navigation satellite Compass-M1. Proved that all Compass-M1 codes are Gold codes and derived their code generators as linear shift feedback registers. Applied PRN codes in software receiver to acquire and track Compass-M1 satellite.

如果是真的，该女人活不过明年春节就会人间蒸发了。

有没有行家出来解释一番？

一位小小女子，不费吹灰之力，就破解了中国几十年数代心血花费上百亿我们赖以对付美国保护國镓安全的卫星导航系统，还能说中国人不聪明吗？可惜这么聪明的人才怎么不能为中国所用？为什么这么聪明的人不帮着中国破译美国的GPS密码呢？

现在的网络帖子，是个女的就称“美女”。

纯粹扯淡。 1. 密码和加密算法不是一成不变的，如果北斗系统这么简单就完蛋了，只能说明当初的设计存在巨大缺陷，而清华女帮忙指出这个缺陷，对中国有百利而无一害。 2. 如果这个女博士生的成功如文章所说有那么巨大的军事用途，美国为什么让她发表？最安全的办法是送她几百万美元，再给她一份高薪政府工作。以后美国可以轻松破解中国的所有军事调动，就像二战对日本那样。 3.

我觉得是不是她爱上了一个美国间谍，然后，这个间谍把她弄到美国，对她进行了诱骗。估计她肯定知道自己做的是什么。一个有职业道德的人是不会把自己以前公司的资料给新公司的。肯定是美国间谍以美国留学、奖学金什么的，还有就是和她谈情说爱，才使她上当了。看她的样子，应该是非常喜欢外国帅男的。

为了个人的名利，出卖自己民族和国家的安全利益，这样的人不配为人，我为这样的一个老乡感到耻辱。

it is true: http://www.ion.org/awards/earlyachievement2008.cfm 2008 Early Achievement Award Recipient: Dr. Grace Xingxin Gao Citation: For contributions to the understanding and performance of the new satellite signals from Galileo and Compass. Dr. Grace Xingxin Gao has already made truly remarkable contributions to satellite navigation. Her research is dedicated to the signals and receivers used by the new Global Navigation Satellite Systems. Grace was the first to derive the code generators used by the Galileo validation satellites and the first Compass satellite in medium earth orbit. In December 2005, the Europeans launched the first prototype satellite for Galileo, called GIOVE-A. The navigation signals were turned on in January of 2006. Within hours, Grace worked with others in the laboratory to capture the new civil signals in three bands. Within weeks, Grace working independently, derived the underlying algorithms that generate the codes used by GIOVE-A and decoded the codes in all three frequency bands. Her work was published as part of the Inside GNSS cover story “GNSS Album: Images and Spectral Signatures of the New GNSS Signals,” that appeared in May-June 2006. Soon after her publication, receiver companies around the world implemented her codes and built prototype receivers to acquire and track the Galileo satellite. In April 2007, China launched the first medium earth orbiting satellite that belongs to their Compass system. Using her proven techniques, Grace demodulated the civil codes broadcast by this M1 satellite in all three frequency bands (E2, E5b & E6), and proved that all Compass-M1 codes are Gold codes and derived their code generators as linear shift feedback registers. She also applied these PRN codes in a software receiver to acquire and track the Compass-M1 satellite. In April 2008, the Europeans launched GIOVE-B, which is a pre-production prototype satellite for Galileo. Grace was the first to discover the underlying code generators. Grace received her doctorate from Stanford University in September 2008. She continues to work on the satellite navigation systems as part of a Stanford research program funded by the FAA. She has presented and published 16 high quality papers at conferences. In 2007, she was an ION GNSS sponsored student where her paper won the Best Presentation of the Session.

不知真假，如果真如文章或些，后果太严重了。可以发邮件给她问问：

如果真是那样的话，一旦战争爆发，我们将会牺牲亿万同胞。那她绝对是个卖主求荣的铁杆汉奸！

hi waht do you want!!!!!!!!!!!!!!!

她没能力破解GPS,因为没参加GPS开发.

如果是真的，这人估计脑袋里长s**t了

白痴文章！