{"width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.three-wise-monkeys.com%2Fentry%2F2026%2F01%2F21%2F080000\" title=\"Cryptography\uff08\u6697\u53f7\u5316\uff09\uff1aA to Z Information Security - \u53e1\u667a\u306e\u4e09\u733f\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/s/slowtrain2013/20251109/20251109123434.png","height":"190","description":"Cryptography: Secret Codes to Keep Information Safe Cryptography is like writing in a secret code! It's a way to hide messages so that only certain people can read them. What is cryptography? Imagine you want to send a secret note to your best friend. You don't want anyone else to read it. So you ch\u2026","author_name":"slowtrain2013","provider_url":"https://hatena.blog","version":"1.0","categories":["A to Z Information Security","\u6c17\u306b\u306a\u308b\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7528\u8a9e","\u6587\u5b66\u30fb\u8a9e\u5b66","\u60c5\u5831\u306e\u6a5f\u5bc6\u6027\uff08\u6697\u53f7\u5316\u30fb\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\uff09"],"url":"https://www.three-wise-monkeys.com/entry/2026/01/21/080000","title":"Cryptography\uff08\u6697\u53f7\u5316\uff09\uff1aA to Z Information Security","blog_title":"\u53e1\u667a\u306e\u4e09\u733f","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/slowtrain2013/","blog_url":"https://www.three-wise-monkeys.com/","published":"2026-01-21 08:00:00","type":"rich"}