Transfer from http://www.smatrix.org/bbs/simple/index.php?t5591.html//////////////////////////////////////////////////////////////////////////////Directory1. PHP hash function and its application2. Symmetric cipher algorithm in PHP and its
Instance
Computes the SHA-1 hash of the string "Hello":
Definition and usage
The SHA1 () function computes the SHA-1 hash of the string.
The SHA1 () function uses the United States Secure Hash algorithm 1.
Explanation from RFC 3174-the US Secure
1. StatementCryptography is a complex topic, and I am not an expert in this field. Many colleges and research institutions have long-term research in this regard. In this article, I hope to show you a secure way to store Web application passwords in
1. StatementCryptography is a complex topic and I am not an expert in this field. Many universities and research institutions have long-term research in this area. In this article, I would like to try to show you a secure way to store Web
1. StatementCryptography is a complex topic and I am not an expert in this field. Many universities and research institutions have long-term research in this area. In this article, I would like to try to show you a secure way to store Web
1. DisclaimerCryptography is a complex topic, and I am not an expert in this field. Many universities and research institutions have long-term research in this area. In this article, I want to try to show you a way to safely store Web program
The topic of the hash table collision attack (HashtablecollisionsasDOSattack) has been repeatedly mentioned, and various languages have been recruited. This article combines the PHP kernel source code to discuss the principles and implementation of
PHP Cryptographic function-sha1 () function Encryption
First of all, let's introduce what is SHA1?
SHA is the full name: Secure Hash Algorithm (secure hashing algorithm) is mainly applied to digital signature (digital Signature standard DSS) in the
The following illustrated by the way to show you the PHP kernel exploration: Hash table collision attack principle.
The recent hash Table collision Attack (Hashtable collisions as DOS attack) has been the subject of constant mention, and various
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