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\u30b5\u30a4\u30ba\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u6697\u53f7\u5316\u306e\u4f7f\u7528\u65b9\u6cd5\u3068\u95a2\u9023\u3059\u308b\u8ab2\u984c<\/h2>\n<p>\u6697\u53f7\u5316\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u696d\u754c\u3067\u591a\u6570\u306e\u7528\u9014\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30c7\u30fc\u30bf\u4fdd\u8b77<\/strong>: \u91d1\u878d\u53d6\u5f15\u3001\u500b\u4eba\u30c7\u30fc\u30bf\u3001\u77e5\u7684\u8ca1\u7523\u306a\u3069\u306e\u6a5f\u5bc6\u60c5\u5831\u3092\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b89\u5168\u306a\u901a\u4fe1<\/strong>: \u6697\u53f7\u5316\u306b\u3088\u308a\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30c8 \u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u3001\u30aa\u30f3\u30e9\u30a4\u30f3 \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u5b89\u5168\u306a\u901a\u4fe1\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u4fdd\u8b77<\/strong>: \u30e6\u30fc\u30b6\u30fc\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4fdd\u5b58\u3059\u308b\u524d\u306b\u30cf\u30c3\u30b7\u30e5\u5316\u3059\u308b\u3053\u3068\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3057\u3001\u30c7\u30fc\u30bf\u4fb5\u5bb3\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3067\u3082\u7c21\u5358\u306b\u53d6\u5f97\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u6697\u53f7\u5316\u306b\u306f\u305d\u306e\u9577\u6240\u304c\u3042\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u6b21\u306e\u3088\u3046\u306a\u3044\u304f\u3064\u304b\u306e\u8ab2\u984c\u306b\u76f4\u9762\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\n<p><strong>\u9375\u306e\u7ba1\u7406<\/strong>: \u6697\u53f7\u5316\u30b7\u30b9\u30c6\u30e0\u306e\u6709\u52b9\u6027\u3092\u7dad\u6301\u3059\u308b\u306b\u306f\u3001\u5b89\u5168\u306a\u30ad\u30fc\u306e\u751f\u6210\u3001\u914d\u5e03\u3001\u4fdd\u7ba1\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>: \u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u958b\u767a\u306f\u3001\u53e4\u5178\u7684\u306a\u6697\u53f7\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u6f5c\u5728\u7684\u306a\u8105\u5a01\u3092\u3082\u305f\u3089\u3057\u3066\u304a\u308a\u3001\u8010\u91cf\u5b50\u6697\u53f7\u306e\u9032\u6b69\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483<\/strong>: \u6697\u53f7\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u96fb\u529b\u6d88\u8cbb\u3084\u96fb\u78c1\u653e\u5c04\u306a\u3069\u306e\u610f\u56f3\u3057\u306a\u3044\u60c5\u5831\u6f0f\u6d29\u3092\u60aa\u7528\u3059\u308b\u653b\u6483\u306b\u5bfe\u3057\u3066\u8106\u5f31\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u6bd4\u8f03<\/h2>\n<p>\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306b\u3001\u6697\u53f7\u5316\u3092\u95a2\u9023\u7528\u8a9e\u3068\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>\u6697\u53f7\u5316<\/th>\n<th>\u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc<\/th>\n<th>\u6697\u53f7\u5316<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u76ee\u7684<\/td>\n<td>\u30c7\u30fc\u30bf\u306e\u6a5f\u5bc6\u6027\u3001\u5b8c\u5168\u6027\u3001\u4fe1\u983c\u6027\u306e\u4fdd\u8b77<\/td>\n<td>\u4ed6\u306e\u30c7\u30fc\u30bf\u5185\u306b\u60c5\u5831\u3092\u96a0\u3059<\/td>\n<td>\u5e73\u6587\u304b\u3089\u6697\u53f7\u6587\u3078\u306e\u5909\u63db<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u306a\u30c6\u30af\u30cb\u30c3\u30af<\/td>\n<td>\u6697\u53f7\u5316\u3001\u5fa9\u53f7\u5316\u3001\u30c7\u30b8\u30bf\u30eb\u7f72\u540d<\/td>\n<td>\u753b\u50cf\u3001\u97f3\u58f0\u3001\u305d\u306e\u4ed6\u306e\u30e1\u30c7\u30a3\u30a2\u3092\u4f7f\u7528\u3057\u305f\u30c7\u30fc\u30bf\u306e\u96a0\u853d<\/td>\n<td>\u5bfe\u79f0\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u691c\u51fa<\/td>\n<td>\u30c7\u30fc\u30bf\u4fdd\u8b77\u306e\u305f\u3081\u306b\u6570\u5b66\u7684\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u4f9d\u5b58<\/td>\n<td>\u96a0\u308c\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u691c\u51fa\u306f\u56f0\u96e3\u3067\u3059<\/td>\n<td>\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u77e5\u8b58\u304c\u3042\u308c\u3070\u691c\u51fa\u53ef\u80fd<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/td>\n<td>\u5b89\u5168\u306a\u901a\u4fe1\u3001\u30c7\u30fc\u30bf\u4fdd\u8b77\u3001\u30c7\u30b8\u30bf\u30eb\u7f72\u540d<\/td>\n<td>\u79d8\u5bc6\u901a\u4fe1\u3001\u30b9\u30c6\u30ac\u30ca\u30ea\u30b7\u30b9<\/td>\n<td>\u30c7\u30fc\u30bf\u306e\u6a5f\u5bc6\u6027\u3001\u5b89\u5168\u306a\u9001\u4fe1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u5c55\u671b\u3068\u5c06\u6765\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc<\/h2>\n<p>\u65b0\u305f\u306a\u8ab2\u984c\u306b\u5bfe\u51e6\u3059\u308b\u9032\u6b69\u304c\u7d9a\u3044\u3066\u3044\u308b\u305f\u3081\u3001\u6697\u53f7\u5316\u306e\u5c06\u6765\u306f\u6709\u671b\u3067\u3059\u3002\u4e3b\u8981\u306a\u958b\u767a\u5206\u91ce\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30dd\u30b9\u30c8\u91cf\u5b50\u6697\u53f7<\/strong>\uff1a\u7814\u7a76\u8005\u305f\u3061\u306f\u3001\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u653b\u6483\u306b\u8010\u6027\u306e\u3042\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7a4d\u6975\u7684\u306b\u7814\u7a76\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6e96\u540c\u578b\u6697\u53f7\u5316<\/strong>: \u5fa9\u53f7\u5316\u305b\u305a\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306e\u8a08\u7b97\u3092\u53ef\u80fd\u306b\u3057\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u4e2d\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u3068\u6697\u53f7\u901a\u8ca8<\/strong>: \u6697\u53f7\u5316\u306f\u3001\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4fdd\u8b77\u3057\u3001\u5b89\u5168\u306a\u30c7\u30b8\u30bf\u30eb \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u53ef\u80fd\u306b\u3059\u308b\u4e0a\u3067\u6975\u3081\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b89\u5168\u306a\u30de\u30eb\u30c1\u30d1\u30fc\u30c6\u30a3\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>: \u6a5f\u5bc6\u60c5\u5831\u3092\u516c\u958b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u8907\u6570\u306e\u5f53\u4e8b\u8005\u304c\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 \u30c7\u30fc\u30bf\u3092\u5171\u540c\u3067\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u6697\u53f7\u5316\u30b5\u30fc\u30d0\u30fc\u3068\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068\u6697\u53f7\u5316\u306f\u9023\u643a\u3057\u3066\u884c\u308f\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30e6\u30fc\u30b6\u30fc\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9593\u306e\u4ef2\u4ecb\u8005\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u5f37\u5316\u3057\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u9593\u306e\u901a\u4fe1\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u6697\u53f7\u5316\u3092\u5bb9\u6613\u306b\u3057\u3001\u6a5f\u5bc6\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5730\u57df\u5236\u9650\u3092\u56de\u907f\u3057\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u306e\u533f\u540d\u6027\u3092\u5f37\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>\u6697\u53f7\u5316\u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8a73\u3057\u304f\u8abf\u3079\u308b\u306b\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/csrc.nist.gov\/projects\/cryptographic-toolkit\" target=\"_new\" rel=\"noopener nofollow\">\u7c73\u56fd\u56fd\u7acb\u6a19\u6e96\u6280\u8853\u7814\u7a76\u6240 (NIST) \u2013 \u6697\u53f7\u5316\u30c4\u30fc\u30eb\u30ad\u30c3\u30c8<\/a><\/li>\n<li><a href=\"https:\/\/www.iacr.org\/\" target=\"_new\" rel=\"noopener nofollow\">\u56fd\u969b\u6697\u53f7\u7814\u7a76\u5354\u4f1a (IACR)<\/a><\/li>\n<li><a href=\"https:\/\/www.coursera.org\/courses?query=cryptography\" target=\"_new\" rel=\"noopener nofollow\">Coursera \u2013 \u6697\u53f7\u5316\u30b3\u30fc\u30b9<\/a><\/li>\n<\/ol>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u6697\u53f7\u5316\u306f\u73fe\u4ee3\u306e\u30c7\u30b8\u30bf\u30eb\u74b0\u5883\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308a\u3001\u5b89\u5168\u306a\u901a\u4fe1\u3001\u30c7\u30fc\u30bf\u4fdd\u8b77\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u8c4a\u304b\u306a\u6b74\u53f2\u3068\u7d76\u3048\u9593\u306a\u3044\u9032\u5316\u306b\u3088\u308a\u3001\u6697\u53f7\u5316\u306f\u5b89\u5168\u306a\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30aa\u30f3\u30e9\u30a4\u30f3 \u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u306e\u672a\u6765\u3092\u5f62\u4f5c\u308a\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u304c\u9032\u6b69\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u6a5f\u5bc6\u60c5\u5831\u3092\u4fdd\u8b77\u3059\u308b\u4e0a\u3067\u306e\u6697\u53f7\u5316\u306e\u91cd\u8981\u6027\u306f\u9ad8\u307e\u308b\u4e00\u65b9\u3067\u3042\u308a\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b\u3068\u3063\u3066\u6697\u53f7\u5316\u306f\u7814\u7a76\u3068\u958b\u767a\u306e\u91cd\u8981\u306a\u5206\u91ce\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"featured_media":468053,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476501","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Cryptography: Securing the Digital World<\/mark>","faq_items":[{"question":"What is cryptography?","answer":"<p>Cryptography is the science of secret writing, involving the use of mathematical algorithms to encode information, ensuring its confidentiality, integrity, and authenticity.<\/p>"},{"question":"How did cryptography originate?","answer":"<p>The origins of cryptography can be traced back to ancient times, with the Caesar cipher being one of the earliest known techniques. Over the centuries, cryptography evolved through significant contributions during the Renaissance and the development of advanced encryption systems during World War II.<\/p>"},{"question":"How does cryptography work?","answer":"<p>Cryptography works by converting plain text into unreadable ciphertext through encryption. This process involves encryption algorithms and cryptographic keys. To retrieve the original information, authorized parties use decryption algorithms and the corresponding decryption keys.<\/p>"},{"question":"What are the key features of cryptography?","answer":"<p>Cryptography offers essential features, including:<\/p><ul><li><strong>Confidentiality<\/strong>: Protecting information from unauthorized access.<\/li><li><strong>Integrity<\/strong>: Ensuring data remains unaltered and trustworthy.<\/li><li><strong>Authentication<\/strong>: Verifying the identity of communicating parties.<\/li><li><strong>Non-repudiation<\/strong>: Preventing parties from denying their involvement in a transaction.<\/li><\/ul>"},{"question":"What are the main types of cryptography?","answer":"<p>There are two primary types of cryptography:<\/p><ol><li><strong>Symmetric Cryptography<\/strong>: Uses a single shared secret key for both encryption and decryption.<\/li><li><strong>Asymmetric Cryptography<\/strong>: Utilizes a pair of keys, a public key for encryption and a private key for decryption.<\/li><\/ol>"},{"question":"How is cryptography used?","answer":"<p>Cryptography finds various applications, such as data protection, secure communication over networks, password security, and digital signatures.<\/p>"},{"question":"What challenges does cryptography face?","answer":"<p>Cryptography encounters challenges like key management, potential threats from quantum computing, and side-channel attacks exploiting unintended information leaks.<\/p>"},{"question":"What are the future technologies in cryptography?","answer":"<p>The future of cryptography includes post-quantum cryptography, homomorphic encryption, blockchain and cryptocurrencies, and secure multi-party computation.<\/p>"},{"question":"How do proxy servers relate to cryptography?","answer":"<p>Proxy servers and cryptography are often combined to enhance online security. Proxy servers act as intermediaries, facilitating encryption and improving privacy and anonymity for users.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476501\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/468053"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476501"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}