This is a creation in
Article, where the information may have evolved or changed.
Symmetric encryption algorithms, that is, encryption and decryption using the same cryptographic key encryption and decryption algorithm.
Block cipher
First, prefaceRecently played King Glory, downloaded an auxiliary sample, the result was locked machine, of course, crack it is very simple, this later will be detailed analysis of this sample, but because this sample triggered by the desire is to
Classical cryptography algorithm has been widely used, mostly simpler, using manual and mechanical operation to achieve encryption and decryption. Its main application object is the text information, uses the cipher algorithm to realize the text
symmetric cipher, asymmetric cipher, hashing algorithm and PKICryptography issues to solve: confidentiality, integrity, authentication (anti-repudiation):First, symmetric password:Symmetric cryptography: The sender and recipient use a single key
In the OFB mode, the output of the cryptographic algorithm is fed back into the input of the cryptographic algorithm, and the OFB pattern is not directly encrypted by the cipher algorithm, but by XOR the output of the plaintext packet and cipher
Transferred from: http://www.smatrix.org/bbs/simple/index.php?t5662.html//////////////////////////////////////////////////////////////////////////////Directory1. PHP hash function and its application2. Symmetric cipher algorithm in PHP and its
We often use the password in life, especially in this era of information explosion, such as the password of the bank card consists of six digits, Alipay's password is composed of several characters, but these so-called passwords is "real" password?
First, the principle:CTR Mode is a stream cipher that generates a key stream by encrypting successive accumulated counters, and in CTR mode, each packet corresponds to a successive cumulative counter, and the key stream is generated by encrypting
Ancient Cipher
Time limit:1000 ms
Memory limit:65536 K
Total submissions:22896
Accepted:7703
DescriptionYour ent Roman Empire had a strong government system with varous parameters, choose a Secret Service
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.