阿里巴巴招聘中学习BASE64加密解密,base64加密解密
阿里巴巴招聘中学习BASE64加密解密,base64加密解密
2018年初,蚂蚁金服在知乎发了一个招聘帖,帖子内容如下:
"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";然后下面留了一个邮箱。
这个东西一看就是密文无疑了,然后直接尝试用base64解码,
String a="" byte[] bytes = decode(a); String decode=""; try { decode=new String(bytes,"UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } System.out.println(decode);
public static byte[] decode(String str) { byte[] bytes = null; try { sun.misc.BASE64Decoder decoder = new sun.misc.BASE64Decoder(); bytes = decoder.decodeBuffer(str); } catch (IOException e) { e.printStackTrace(); } return bytes; }然后输出内容:
۽���q��c����o�6!�2o�:*��.�z����:'���:$�����,�:���&�r��>)��r'���2/�6!�2o�r ����> �z���n����2d��b��$���r'���8�o.��=*9��97*y�*9����y�f��b:3.����&9:��Bb�3.�n�9��:h&:|��.8sb�?f9~&z��y�y�f��b:'*y�f9���(����+��c�Io��+�A�i�!g�ݧ�q��5c�=��#�U��Ik�!o�9��q��!���c��믺+��o��������'��箹g�%��)k�'� ���o�g�5g� �A稹�)g�q�� ��㈸��o�2$�6�:&�6(�z��:"�6(��o�4�+��c��㣪o���}��9��jg�U��Ik��o���U��q��)���c��g�q��c����碵㈾]��n�vo�2/�z��r'������2��.��.��#�r/�0�ו��������羽+��'�g�ݣ��㫅��+��k�%��)g�/����o����㈸��o�6!�2o�r �:*��.�~c�2/����v�:n�2/�r'���2/�0�c��#����(�+�!����/�2*�~���*��o�>��2.�rl���~��:#�2/�:'����n���:$�~c�2/������z ��a�2/�:*��.�>�>o�2b��k�:���&�r��>)��:&��.�~��6�<����(��.��*�~��>�>o�2��:n��B(�@�i�)c�����c���C/���&�����k�ŧ��+���횲.�2/�~�2b�2/��m�v��x�9�&ysb����� �o�)k�ug��#�i�)o�ѧ�1k���a��Y��Ic��@�3�9.8�@�3�9�f�?깾*y3.�r�zw���*9k���.�0�y��9*�9�y�fz8溿*y�97*yE�:�z �z�"��jy�"�}"���z��:�&yj93.��zF��nn9�&��I��� 뛾��c�멵c�Ak��c��c�i��H�"�f9.jy�9�f��@���@��/�5o�e��c��c���c��c�o�q��)��=o��k����#���^c�k����v���(��:"�p�o�q��)��=o��g�7*yE�:�z �z&��^c�o�T�这是个什么鬼,由于编码已经设定过,肯定不是编码的原因,试下其他原因,比如字符串反转一下
String a; a = new StringBuilder(a).reverse().toString(); byte[] bytes = decode(a); String decode = ""; try { decode = new String(bytes, "UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } System.out.println(decode);
BU/部门: 蚂蚁金服-平台技术部-技术风险部 部门简介:平台技术部很多 3 年内晋升为 P7,5 年内晋升为 P8 的骨干同学,Python、Java 大牛云集,所在部门负责整个蚂蚁金服技术风险的把控和稳定性保障,是每年双 11、双 12 和新春红包活动的中坚力量。 工作地点: 杭州,成都,上海 要求层级: P6,P7,高潜力的 P5 [应用运维工程师 ] 1. 3 年以上的大规模集群实战运维经验,熟悉软件开发和系统架构,掌握至少一门编程语言,C/C++或者 Java 优先 ,具有开源项目开发经验者优先; 2. 系统工程能力扎实过硬,深入了解系统( linux )及上下游链路服务(网络 /io 等),具有很强技术敏感度和故障排查经验,并能 进行技术方案的整合; 3. 熟悉服务管理、单元部署、自动扩容等运维系统建设,对成本控制和效能提升有深刻的理解和实践; 4. 具有良好的团队协作、沟通能力,乐于分享,良好的客户服务意识; 5. 具有广告或搜索业务背景者优先,具有大规模集群调度和架构设计经验优先; 6. 具有 hadoop/spark/Flink/storm/elasticsearch/kafka 等分布式计算系统及消息队列系统开发 /运维经验者优先 ; 7. 良好的外语沟通能力,具备海外工作经验者优先; [ python 开发工程师 ] 1. 计算机相关专业本科及以上学历 2. 精通 Python,2 年以上 Python 后台开发经验,具有良好的编码习惯; 3. 精通 Python 服务端编程,精通网络编程; 4. 熟悉 Django/flask 等 web 开发框架; 5. 熟悉 Unix/Linux 操作系统下的开发、部署、维护等工作; 6. 具有 AWS、Google Cloud Platform 使用经验者优先; 7. 具有开源项目开发经验者优先; 8. 具有良好的团队协作、沟通能力,乐于分享,良好的客户服务意识 [Java 开发工程师 ] 1、计算机等相关专业本科及以上学历,3-5 年以上相关岗位工作经验; 2、精通 Java、MySQL 以及主流开源框架,有技术难题攻关经验,熟悉 UNIX/Linux 编程环境和常用编程 /调试工具; 3、精通架构设计、概要设计和详细设计,熟练使用 UML 设计工具; 4、具备良好风险识别处理能力,善于主动推动项目进展并达成项目目标; 5、熟悉 Web 开发,有大型网站设计开发、大访问量业务开发 /调优的经验者优先完美解析,下面把这串子加密试一下:
String a ; a = new StringBuilder(a).reverse().toString(); byte[] bytes = decode(a); System.out.println(encode(bytes));
public static String encode(byte[] bstr) { return new sun.misc.BASE64Encoder().encode(bstr); }输出:
CkJVL+mDqOmXqDoJ6JqC6JqB6YeR5pyNLeW5s+WPsOaKgOacr+mDqC3mioDmnK/po47pmanpg6gg CumDqOmXqOeugOS7i++8muW5s+WPsOaKgOacr+mDqOW+iOWkmiAzIOW5tOWGheaZi+WNh+S4uiBQ N++8jDUg5bm05YaF5pmL5Y2H5Li6IFA4IOeahOmqqOW5suWQjOWtpu+8jFB5dGhvbuOAgUphdmEg 5aSn54mb5LqR6ZuG77yM5omA5Zyo6YOo6Zeo6LSf6LSj5pW05Liq6JqC6JqB6YeR5pyN5oqA5pyv 6aOO6Zmp55qE5oqK5o6n5ZKM56iz5a6a5oCn5L+d6Zqc77yM5piv5q+P5bm05Y+MIDEx44CB5Y+M IDEyIOWSjOaWsOaYpee6ouWMhea0u+WKqOeahOS4reWdmuWKm+mHj+OAgiAK5bel5L2c5Zyw54K5 Ognmna3lt57vvIzmiJDpg73vvIzkuIrmtbcgCuimgeaxguWxgue6pzoJUDbvvIxQN++8jOmrmOa9 nOWKm+eahCBQNSAKClvlupTnlKjov5Dnu7Tlt6XnqIvluIggXSAKMS4gMyDlubTku6XkuIrnmoTl pKfop4TmqKHpm4bnvqTlrp7miJjov5Dnu7Tnu4/pqozvvIznhp/mgonova/ku7blvIDlj5Hlkozn s7vnu5/mnrbmnoTvvIzmjozmj6Hoh7PlsJHkuIDpl6jnvJbnqIvor63oqIDvvIxDL0MrK+aIluiA hSBKYXZhIOS8mOWFiCDvvIzlhbfmnInlvIDmupDpobnnm67lvIDlj5Hnu4/pqozogIXkvJjlhYjv vJsgCjIuIOezu+e7n+W3peeoi+iDveWKm+aJjuWunui/h+ehrO+8jOa3seWFpeS6huino+ezu+e7 n++8iCBsaW51eCDvvInlj4rkuIrkuIvmuLjpk77ot6/mnI3liqHvvIjnvZHnu5wgL2lvIOetie+8 ie+8jOWFt+acieW+iOW8uuaKgOacr+aVj+aEn+W6puWSjOaVhemanOaOkuafpee7j+mqjO+8jOW5 tuiDvSDov5vooYzmioDmnK/mlrnmoYjnmoTmlbTlkIjvvJsgCjMuIOeGn+aCieacjeWKoeeuoeeQ huOAgeWNleWFg+mDqOe9suOAgeiHquWKqOaJqeWuueetiei/kOe7tOezu+e7n+W7uuiuvu+8jOWv ueaIkOacrOaOp+WItuWSjOaViOiDveaPkOWNh+aciea3seWIu+eahOeQhuino+WSjOWunui3te+8 myAKNC4g5YW35pyJ6Imv5aW955qE5Zui6Zif5Y2P5L2c44CB5rKf6YCa6IO95Yqb77yM5LmQ5LqO 5YiG5Lqr77yM6Imv5aW955qE5a6i5oi35pyN5Yqh5oSP6K+G77ybIAo1LiDlhbfmnInlub/lkYrm iJbmkJzntKLkuJrliqHog4zmma/ogIXkvJjlhYjvvIzlhbfmnInlpKfop4TmqKHpm4bnvqTosIPl uqblkozmnrbmnoTorr7orqHnu4/pqozkvJjlhYjvvJsgCjYuIOWFt+aciSBoYWRvb3Avc3Bhcmsv Rmxpbmsvc3Rvcm0vZWxhc3RpY3NlYXJjaC9rYWZrYSDnrYnliIbluIPlvI/orqHnrpfns7vnu5/l j4rmtojmga/pmJ/liJfns7vnu5/lvIDlj5EgL+i/kOe7tOe7j+mqjOiAheS8mOWFiCDvvJsgCjcu IOiJr+WlveeahOWkluivreayn+mAmuiDveWKm++8jOWFt+Wkh+a1t+WkluW3peS9nOe7j+mqjOiA heS8mOWFiO+8myAKClsgcHl0aG9uIOW8gOWPkeW3peeoi+W4iCBdIAoxLiDorqHnrpfmnLrnm7jl hbPkuJPkuJrmnKznp5Hlj4rku6XkuIrlrabljoYgCjIuIOeyvumAmiBQeXRob27vvIwyIOW5tOS7 peS4iiBQeXRob24g5ZCO5Y+w5byA5Y+R57uP6aqM77yM5YW35pyJ6Imv5aW955qE57yW56CB5Lmg 5oOv77ybIAozLiDnsr7pgJogUHl0aG9uIOacjeWKoeerr+e8lueoi++8jOeyvumAmue9kee7nOe8 lueoi++8myAKNC4g54af5oKJIERqYW5nby9mbGFzayDnrYkgd2ViIOW8gOWPkeahhuaetu+8myAK NS4g54af5oKJIFVuaXgvTGludXgg5pON5L2c57O757uf5LiL55qE5byA5Y+R44CB6YOo572y44CB 57u05oqk562J5bel5L2c77ybIAo2LiDlhbfmnIkgQVdT44CBR29vZ2xlIENsb3VkIFBsYXRmb3Jt IOS9v+eUqOe7j+mqjOiAheS8mOWFiO+8myAKNy4g5YW35pyJ5byA5rqQ6aG555uu5byA5Y+R57uP 6aqM6ICF5LyY5YWI77ybIAo4LiDlhbfmnInoia/lpb3nmoTlm6LpmJ/ljY/kvZzjgIHmsp/pgJro g73lipvvvIzkuZDkuo7liIbkuqvvvIzoia/lpb3nmoTlrqLmiLfmnI3liqHmhI/or4YgCgpbSmF2 YSDlvIDlj5Hlt6XnqIvluIggXSAKMeOAgeiuoeeul+acuuetieebuOWFs+S4k+S4muacrOenkeWP iuS7peS4iuWtpuWOhu+8jDMtNSDlubTku6XkuIrnm7jlhbPlspfkvY3lt6XkvZznu4/pqozvvJsg CjLjgIHnsr7pgJogSmF2YeOAgU15U1FMIOS7peWPiuS4u+a1geW8gOa6kOahhuaetu+8jOacieaK gOacr+mavumimOaUu+WFs+e7j+mqjO+8jOeGn+aCiSBVTklYL0xpbnV4IOe8lueoi+eOr+Wig+WS jOW4uOeUqOe8lueoiyAv6LCD6K+V5bel5YW377ybIAoz44CB57K+6YCa5p625p6E6K6+6K6h44CB 5qaC6KaB6K6+6K6h5ZKM6K+m57uG6K6+6K6h77yM54af57uD5L2/55SoIFVNTCDorr7orqHlt6Xl hbfvvJsgCjTjgIHlhbflpIfoia/lpb3po47pmanor4bliKvlpITnkIbog73lipvvvIzlloTkuo7k uLvliqjmjqjliqjpobnnm67ov5vlsZXlubbovr7miJDpobnnm67nm67moIfvvJsgCuKAiyA144CB 54af5oKJIFdlYiDlvIDlj5HvvIzmnInlpKflnovnvZHnq5norr7orqHlvIDlj5HjgIHlpKforr/p l67ph4/kuJrliqHlvIDlj5EgL+iwg+S8mOeahOe7j+mqjOiAheS8mOWFiCAK比较一下,是不是刚好相反,完美解决,多谢阿里,让我这个周末巩固了这方面的技术。
查看评论
评论暂时关闭