md5(n) [redhat man page]

md5(n)								Perform md5 hashing							    md5(n)

NAME

       md5 - md5 hash

SYNOPSIS

       package require Tcl 8.2

       package require md5 1.4.2

       ::md5::md5 msg

       ::md5::hmac key text

DESCRIPTION

       This package provides commands to compute a MD5 digests of arbitrary messages.

COMMANDS

       ::md5::md5 msg
	      The command takes a message and returns the MD5 digest of this message as a hexadecimal string.

       ::md5::hmac key text
	      The command takes a key string and a text and returns the hmac of the text under the chosen key as a hexadecimal string.

EXAMPLES

       % md5::md5 "hello world"
       5eb63bbbe01eeed093cb22bb8f5acdc3

       % md5::hmac "our little secret" "hello world"
       61a922114c8aaf5050098be6d3a7daf0

KEYWORDS

       md5, hashing, security

md5								       1.4.2								    md5(n)

MD5(3)									 1								    MD5(3)

md5 - Calculate the md5 hash of a string

SYNOPSIS

       string md5 (string  $str, [bool	$raw_output = false])

DESCRIPTION

	Calculates the MD5 hash of $str using the RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash.

PARAMETERS

	      o $str
		- The string.

	      o $raw_output
		- If the optional $raw_output is set to TRUE, then the md5 digest is instead returned in raw binary format with a length of 16.

RETURN VALUES

	Returns the hash as a 32-character hexadecimal number.

EXAMPLES

       Example #1

	      A md5(3) example

	      <?php
	      $str = 'apple';

	      if (md5($str) === '1f3870be274f6c49b3e31a0c6728957f') {
		  echo "Would you like a green or red apple?";
	      }
	      ?>

NOTES

       Note

	      Secure password hashing

	       It  is  not  recommended  to  use this function to secure passwords, due to the fast nature of this hashing algorithm. See here for
	      details.

SEE ALSO

       md5_file(3), sha1_file(3), crc32(3), sha1(3), hash(3), crypt(3), password_hash(3).

PHP Documentation Group 														    MD5(3)