Ciphertext (also cipher , cipher , ciphertext , the ciphertext , cryptogram , crypto text , ciphertext or spell ) is in the cryptography a text or a amount of data which are sold by encryption using a cryptographic method ( by hand or by machine ) using a key has been altered in such a way that it is simply no longer possible to understand its content.
With the help of the secret key, the ciphertext can be converted back into the original plain text (picture). This is called decryption . If an unauthorized attacker, without knowing the key, succeeds in wresting the original plain text from the ciphertext, i.e. breaking the ciphertext , it is called decipherment .
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