Exploring steganography: Seeing the unseen 摘要

Steganography is the art of hiding information in ways that prevent the detection of hidden messages.
資訊隱藏是預防隱藏訊息被查覺的隱藏訊息之藝術

Steganography, derived from Greek, literally means “covered writing.”
資訊隱藏一詞由希臘字來，字面意思為偽裝寫作

It includes a vast array of secret communications methods that conceal the message’s very existence.
它包含了很多隱藏訊息存在的秘密通訊方法

These methods include invisible inks, microdots, character arrangement, digital signatures, covert channels, and spread spectrum communications.
這些方法包括隱形墨水、點文字，字元排列，數位簽章、變換頻道、展頻

Steganography and cryptography are cousins in the spycraft family.
資訊隱藏和密碼學是間碟工藝家族的表兄弟

Cryptography scrambles a message so it cannot be understood.
密碼學混亂訊息所以訊息不能被解讀

Steganography hides the message so it cannot be seen.
資訊隱藏隱藏訊息所以訊息不能被看到

A message in ciphertext, for instance, might arouse suspicion on the part of the recipient while an “invisible” message created with steganographic methods will not.
例如一個在密文的訊息可能引起一部分的接收者懷疑，然而一個用資訊隱藏方法隱藏的訊息則不會

In this article we discuss image files and how to hide information in them, and we discuss results obtained from evaluating available steganoStgraphic software.
在本文我們會討論影像檔及如何隱藏訊息在裡面，並且我們討論從“evaluating available steganoStgraphic software“所得到的結果

For a brief look at how steganography evolved, see the “Steganography: Some History” sidebar
在花邊小故事“資訊隱藏：一些歷史“我們簡短看資訊隱藏的演進

看不懂的英文字
conceal隱藏
sidebar與正文有關的花邊新聞

字典找不到的字
spycraft 我是翻間碟工藝不知道對不對

翻不出來的句子
and we discuss results obtained from evaluating available steganoStgraphic software.

認為有點怪的句子
It includes a vast array of secret communications methods that conceal the message’s very existence.

the message’s very existence 很怪very existence很怪