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Hash
Hash, the general translation to do "hash", there is a direct transliteration of "hash", is the arbitrary length of the input (also known as pre-mapping, pre-image), through the hash algorithm, transformed into a fixed-length output,
Md5 is a string that is hash into a character + number, but now I need to hash a string into a 10-digit number. Is there any algorithm that can be implemented, or, you can convert the md5 result to a 10-digit md5. This method is hash into a
---------------What is hash?Important features of hashImplementation of Hash FunctionsPrimary hashAlgorithmSecurity issues of Hash AlgorithmsApplication of Hash AlgorithmConclusion---------------
Hash, which is usually translated as "hash", and is
PHP encryption function-md5 () function encryption what is MD5 () function? MD5 () function is the MD5 hash value of the calculator string, using MD5 algorithm, the full name of MD5 is Message-DigestAlgorithm5, it is used to calculate data
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
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
The simple Java encryption algorithm is:BASE64 strictly speaking, it belongs to the encoding format, not the encryption algorithmMD5 (Message Digest algorithm 5, Information Digest algorithm)SHA (Secure Hash algorithm, security hashing
The full name of MD5 is message-Digest algorithm 5. Message-digest refers to the hash transformation of the message. It is to convert a byte string of any length into a long big integer. MD5 converts a "Byte string" of any length into a large
the MD5 algorithm has the following characteristics:1, compressibility: Any length of data, calculated the length of the MD5 value is fixed. 2, easy to calculate: It is easy to calculate the MD5 value from the original data. 3, anti-modification:
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
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