Encrypting data passed through internet in php.
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Question / Problem
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How to encrypt secured and sensitive information transferd over internet to protect it?
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Solution
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Definition and Usage
The md5() function calculates the MD5 hash of a string.
The md5() function uses the RSA Data Security, Inc. MD5 Message-Digest Algorithm.
From RFC 1321 - The MD5 Message-Digest Algorithm:
"The MD5 message-digest algorithm takes as input a message of arbitrary length and produces as output a 128-bit "fingerprint" or "message digest" of the input. The MD5 algorithm is intended for digital signature applications, where a large file must be "compressed" in a secure manner before being encrypted with a private (secret) key under a public-key cryptosystem such as RSA."
This function returns the calculated MD5 hash on success, or FALSE on failure.
Syntax :-
md5(string,raw)
where string is required. The string to be calculated
raw is optional. Specifies hex or binary output format:
TRUE - Raw 16 character binary format
FALSE - Default. 32 character hex number
Example :-
<?php
$str = "Hello";
echo md5($str);
?>
The output of the code above will be:
8b1a9953c4611296a827abf8c47804d7
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Applies to |
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PHP
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Rank It |
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