クレジットカードを不正から守る番号の決め方 符号理論が支える現代社会～最先端はビットコイン – JBpress
JBpress |
クレジットカードを不正から守る番号の決め方 符号理論が支える現代社会～最先端はビットコイン
JBpress 電話番号、郵便番号、自動車登録番号、証券番号、学籍番号・・・、私たちは番号とともに生活しています。ネット社会ではサイトごとにパスワードの入力が必要です。 文字情報を数字情報に置き換える仕組みがASCII（アスキー）と呼ばれる文字コードです。ASCIIとはAmerican … |
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