MD5 is a secure hashing algorithm, input two different plaintext will not get the same output value, according to the output value, can not get the original plaintext, that is, its process is irreversible; So to decrypt MD5 there is no ready-made
Comments: For a long time, MD5 encryption and verification are very secure. Many forums and software Save the password of the user name after MD5 encryption. Compared with the previous plaintext storage, the stored information after MD5 encryption
C # implements MD5 encryptionExcerpt from: http://blog.csdn.net/shenghui188/archive/2010/03/28/5423959.aspxMethod One:First, let's briefly introduce MD5MD5 's full name is Message-digest algorithm 5 (Information-Digest algorithm, in the early 90 by
Method OneFirst, let's briefly introduce MD5MD5 's full name is Message-digest algorithm 5 (Information-Digest algorithm, in the early 90 by MIT Laboratory for Computer Science and RSA Data Security Inc Ronald L. Rive St developed, developed by MD2,
Test results and Baidu Encyclopedia test examples are consistent.
The implementation of the need to note: The last four variables a B C D link to the results, attention to the order of the variable high and low, specific reference to Linkresult ()
I. Brief description
MD5: All called message digest algorithm 5 (Information digest algorithm), can be encrypted, but not decrypted, belong to one-way encryption, usually used for file verification
BASE64: The 8-bit byte of any sequence is
1. Java Security Architecture 1.1 Introduction to Java Security architectureJava provides classes and interfaces for the security framework. The JDK security API is the core API for the Java programming language, located in the Java.security package
OrderIn the previous article, we introduced the most basic coding method--base64, and also briefly mentioned the principle of coding. This article continues to decrypt the series, of course, is also the introduction of a comparative basis of the
This paper mainly introduces the Java implementation of the common encryption algorithm-one-way encryption algorithm MD5 and Sha, as follows:
1, the Java security architecture
Introduction to 1.1 Java security architecture
provides classes and
At present, it can be realized: MD5 algorithm, SHA256 algorithm, first MD5 SHA256, SHA256 after MD5, two MD5, two times SHA256, 8-bit MD5 algorithm after the first 8-bit SHA256, 8-bit SHA256 algorithm after the former 8-bit MD5 algorithm, Password
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