想去美国国安局上班？先破解这条密码
<p><span word="The">The</span> <span word="NSA">NSA</span> <span word="recruiting">recruiting</span> <span word="Twitter">Twitter</span> <span word="account">account</span> <span word="sent">sent</span> <span word="out">out</span> <span word="a">a</span> <span word="confusing">confusing</span> <span word="message">message</span> <span word="on">on</span> <span word="Monday">Monday</span> <span word="morning">morning</span>. <span word="While">While</span> <span word="some">some</span> <span word="thought">thought</span> <span word="the">the</span> <span word="account">account</span> <span word="had">had</span> <span word="been">been</span> <span word="hacked">hacked</span> <span word="or">or</span> <span word="a">a</span> <span word="mess">mess</span> <span word="of">of</span> <span word="typos">typos</span> <span word="had">had</span> <span word="been">been</span> <span word="actually">actually</span> <span word="tweeted">tweeted</span>, <span word="the">the</span> <span word="message">message</span> <span word="was">was</span> <span word="actually">actually</span> <span word="a">a</span> <span word="cryptogram">cryptogram</span>:</p><p>周一早上，美国国家安全局的官方招募推特账号发布了一条让人不解的消息。有的人还以为是这个账号被黑客入侵或者是出现了乱糟糟的打字错误，但实际上这是一条密码：</p><p><span word="tpfccdlfdtte">tpfccdlfdtte</span> <span word="pcaccplircdt">pcaccplircdt</span> <span word="dklpcfrp">dklpcfrp</span>?<span word="qeiq">qeiq</span> <span word="lhpqlipqeodf">lhpqlipqeodf</span> <span word="gpwafopwprti">gpwafopwprti</span> <span word="izxndkiqpkii">izxndkiqpkii</span> <span word="krirrifcapnc">krirrifcapnc</span> <span word="dxkdciqcafmd">dxkdciqcafmd</span> <span word="vkfpcadf">vkfpcadf</span>. #<span word="MissionMonday">MissionMonday</span>#<span word="NSA">NSA</span>#<span word="news">news</span></p><p>— <span word="NSA">NSA</span> (@<span word="NSACareers">NSACareers</span>) <span word="May">May</span> 5, 2017</p><p><span word="For">For</span> <span word="a">a</span> <span word="pro">pro</span>, <span word="this">this</span> <span word="is">is</span> <span word="actually">actually</span> <span word="a">a</span> <span word="relatively">relatively</span> <span word="easy">easy</span> <span word="code">code</span> <span word="to">to</span> <span word="figure">figure</span> <span word="out">out</span>. <span word="It">It</span> <span word="translates">translates</span> <span word="to">to</span>:</p><p>对于一个专业人士而言，这条密码其实挺容易解出，翻译过来就是：</p><p>"<span word="Want">Want</span> <span word="to">to</span> <span word="know">know</span> <span word="what">what</span> <span word="it">it</span> <span word="takes">takes</span> <span word="to">to</span> <span word="work">work</span> <span word="at">at</span> <span word="NSA">NSA</span>? <span word="Check">Check</span> <span word="back">back</span> <span word="each">each</span> <span word="Monday">Monday</span> <span word="in">in</span> <span word="May">May</span> <span word="as">as</span> <span word="we">we</span> <span word="explore">explore</span> <span word="careers">careers</span> <span word="essential">essential</span> <span word="to">to</span> <span word="protecting">protecting</span> <span word="our">our</span> <span word="nation">nation</span>."</p><p>“想知道怎样才能在美国国家安全局工作吗？记得5月的每个周一来看我们发布的消息，我们会带你探究那些对于保护我们国家至关重要的职位。”</p><p><span word="The">The</span> <span word="tweet">tweet</span> <span word="is">is</span> <span word="a">a</span> <span word="substitution">substitution</span> <span word="cipher">cipher</span>, <span word="in">in</span> <span word="which">which</span> <span word="each">each</span> <span word="letter">letter</span> <span word="is">is</span> <span word="swapped">swapped</span> <span word="for">for</span> <span word="another">another</span>. <span word="In">In</span> <span word="the">the</span> <span word="code">code</span>, <span word="each">each</span> '<span word="word">word</span>' <span word="is">is</span> <span word="twelve">twelve</span> <span word="letters">letters</span> <span word="long">long</span>, <span word="unless">unless</span> <span word="there">there</span> <span word="is">is</span> <span word="punctuation">punctuation</span>. <span word="This">This</span> <span word="suggests">suggests</span> <span word="that">that</span> <span word="the">the</span> <span word="spaces">spaces</span> <span word="in">in</span> <span word="the">the</span> <span word="tweet">tweet</span> <span word="do">do</span> <span word="not">not</span> <span word="matter">matter</span>, <span word="only">only</span> <span word="the">the</span> <span word="letters">letters</span> <span word="determine">determine</span> <span word="the">the</span> <span word="code">code</span>. <span word="This">This</span> <span word="is">is</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="oldest">oldest</span> (<span word="and">and</span> <span word="easiest">easiest</span> <span word="to">to</span> <span word="solve">solve</span>) <span word="cryptograms">cryptograms</span>, <span word="a">a</span> <span word="necessity">necessity</span> <span word="to">to</span> <span word="decipher">decipher</span> <span word="for">for</span> <span word="any">any</span> <span word="potential">potential</span> <span word="NSA">NSA</span> <span word="cryptographer">cryptographer</span>. <span word="If">If</span> <span word="you">you</span> <span word="couldn">couldn</span>'<span word="t">t</span> <span word="figure">figure</span> <span word="it">it</span> <span word="out">out</span>, <span word="global">global</span> <span word="communications">communications</span> <span word="surveillance">surveillance</span> <span word="probably">probably</span> <span word="isn">isn</span>'<span word="t">t</span> <span word="a">a</span> <span word="good">good</span> <span word="career">career</span> <span word="path">path</span> <span word="for">for</span> <span word="you">you</span>.</p>
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