價格：免費
更新日期：2018-02-25
檔案大小：2.5M
目前版本：1.0.0
版本需求：Android 4.1 以上版本
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Data Encryption Standard
The Data Encryption Standard is a symmetric-key algorithm for the encryption of electronic data. Although now considered insecure, it was highly influential in the advancement of modern cryptography.
Symmetric (also known as secret-key) ciphers use the same key for encrypting and decrypting, so the sender and the receiver must both know and use the same secret key.
DES is now considered to be insecure for many applications. This is mainly due to the 56-bit key size being too small. In January 1999, distributed.net and the Electronic Frontier Foundation collaborated to publicly break a DES key in 22 hours and 15 minutes.
Your task is to find KEY and try to decrypt given DES encrypted string.