Relacionar Columnas Secret WritingVersión en línea ........... por Tea Cher 1 Transposition 换位 2 Steganography 隐写术 3 Substitution 代换 4 Secret agent 密探 5 Scalp 头皮 6 Ancient 古老的 7 Cunning 狡猾 8 Cryptography 密码学: 9 Alum 明矾 10 Vital information 重要信息 Clever, sly, or crafty in achieving one's goals or solving problems. Belonging to a time long past, typically referring to a period in history. The act of replacing one thing with another. A chemical compound used for various purposes, including as a mordant in dyeing and as an ingredient in some inks. The practice of concealing messages or information within other non-secret data. The act of changing the position or order of something. Critical or essential information that is of utmost importance. The practice or study of techniques for secure communication in the presence of third parties. The skin covering the top of the head. A person who works covertly to gather information or perform espionage activities.
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