Price DropCipherText, an app can be used to encrypt your messages.

- September 25, 2010

name: ciphertext

category: utilities

updated: oct 04, 2011

version: 2.0

size: 1.0 mb

languages: english, chinese

appstore: http://itunes.apple.com/us/app/cipertext/id466202029?mt=8

description

【price drop limited time: 1/oct/2011 - 8/oct/2011】

wanna send message others can't read? ciphertext you!
wanna read encrypted message distinct key? ciphertext you!
wanna encrypt text see if friend have broken? ciphertext you!

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☆ app can encrypt , decrypt message using series of different keys based on letters of keyword or sentence. responsible setting keyword or sentence.
1. after message encrypted, can send friends using build-in mail , message functionality, or copy pasteboard in order paste anywhere else, such twitter , facebook. else never know content of cipher text if he/she haven't been told keys.
2. when receive encrypted message , keyword or sentence, app can decrypt encrypted message you. on other side, if keyword or sentence not sent you, or keyword not correct, never obtain content of message.

☆ app designed based on vigenère’s cipher. cipher known because while easy understand , implement, appears beginners unbreakable; earned description le chiffre indéchiffrable (french 'the indecipherable cipher'). consequently, many people have tried implement encryption schemes vigenère ciphers, have them broken.
vigenère cipher simple enough field cipher if used in conjunction cipher disks. confederate states of america, example, used brass cipher disk implement vigenère cipher during american civil war. confederacy's messages far secret , union regularly cracked messages. throughout war, confederate leadership relied upon 3 key phrases, "manchester bluff", "complete victory" and, war came close, "come retribution".

app works differently brass cipher disk, key phrases set yourself. it's one-time key never decrypted.

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☆ app can encrypt , decrypt messages in various languages, , can set key in various languages, too. such as:
● latin characters
● 汉字
● 日本語
● 한국의
● русский
● ελληνικά

★★★★★ features ★★★★★★★★★★★★★★★★★★★★★★★★★★
★ encrypting messages;
★ decrypting messages;
★ encrypting digits (optional);
★ counting characters of encrypted/decrypted message;
★ sending encrypted messages via build-in sms/email functionality;
★ copying encrypted/decrypted messages pasteboard;
★ sending/copying keyword or key sentence (optional);
★ encrypting/decrypting messages in various languages;
★ setting key in various languages;
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★

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