Md5: Difference between revisions

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__NOTOC__
__NOTOC__
{{Server client function}}
{{Server client function}}
Calculates the MD5 hash of the specified string and returns its hexadecimal representation.
Calculates the MD5 hash of the specified string and returns its hexadecimal representation.
 
{{Warning|It is strongly recommended to use passwordHash to hash passwords, md5 is easily decodeable.}}
Note: returns an uppercase string, so make sure you string.upper() anything else you are checking against that has been MD5'd elsewhere.
{{Note|It returns an uppercase string, so make sure you string.upper() anything else you are checking against that has been MD5'd elsewhere.}}


==Syntax==
==Syntax==
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===Returns===
===Returns===
Returns the MD5 hash of the input string if successful, ''false'' otherwise.
Returns the MD5 hash of the input string if successful, ''false'' otherwise.
==Remarks==
This function, along with other hashing algorithms, can be used for a '''plausible script self protection''' strategy. If done right this strategy does present the fact that the script wants to express ownership to a legal entity. This can be used as argument in a court of law or for DRM purposes. You can find the general idea [https://forum.mtasa.com/topic/132891-important-helprespawn-vehicle/?do=findComment&comment=1002490 here].
==Example==
<syntaxhighlight lang="lua">
function md5it (player,command, theString) -- open function
  if theString then -- check if the string is exist
    md5string = md5(theString) -- get the md5 string
    outputChatBox(theString.. " -> " .. md5string , player, 255, 0, 0, false) -- output it
  end
end
addCommandHandler ("md5it", md5it) -- create command
</syntaxhighlight>


==See Also==
==See Also==
{{Utility functions}}
{{Utility functions}}

Latest revision as of 13:46, 20 October 2021

Calculates the MD5 hash of the specified string and returns its hexadecimal representation.

[[|link=|]] Warning: It is strongly recommended to use passwordHash to hash passwords, md5 is easily decodeable.
[[{{{image}}}|link=|]] Note: It returns an uppercase string, so make sure you string.upper() anything else you are checking against that has been MD5'd elsewhere.

Syntax

string md5 ( string str )

Required Arguments

  • str: the string to hash.

Returns

Returns the MD5 hash of the input string if successful, false otherwise.

Remarks

This function, along with other hashing algorithms, can be used for a plausible script self protection strategy. If done right this strategy does present the fact that the script wants to express ownership to a legal entity. This can be used as argument in a court of law or for DRM purposes. You can find the general idea here.

Example

function md5it (player,command, theString) -- open function
  if theString then -- check if the string is exist
    md5string = md5(theString) -- get the md5 string
    outputChatBox(theString.. " -> " .. md5string , player, 255, 0, 0, false) -- output it
  end
end
addCommandHandler ("md5it", md5it) -- create command

See Also


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