MacHouse - Spam Database

URL decoding

What is URL encoding?  The 'urlencode' function converts a phrase consisting of non-alpha-nummeric characters into a string with % plus 2-digit hexadecimal characters.  Each space will be represented by '+' if any.  Therefore, the string should end with a number or an alphabetic letter.  Cyber criminals sometimes use 'urlencode' or 'rawurlencode' (no '+' for space) to conceal messages.

Example: %E3%81%93%E3%82%93%E3%81%AB%E3%81%A1%E3%82%8F => こんにちわ ('hello' in Japanese)

URL encoding 1 (space replaced by '+')

Of course, you can convert a phrase consisting of non-alphabetic characters into a string with 2-digit hexadecimal characters.  Note that you cannot use a pharase with a tilda.

Enter a non-alphabetic phrase.  (Example: こんにちは。いい天気ですね)

URL encoding 2 (no '+')

Use this function if you don't want to replace each space with a '+.'  Note that you cannot use a pharase with a tilda.

Enter a non-alphabetic phrase.  (Example: こんにちは。いい天気ですね)

Base64 decoding

What is Base 64 encoding?  A string with alpha-numeric characters and/or non-alpha-numeric characters may be translated into a base-64 representation that consists of 64 characters including A-Z, a-z, 0-9, + and/.  Some spammers encode messages to evade keyword detection. This translation scheme is not a modified one and will not convert '+' and '/' into '-' and '_,' respectively.

Example:

=>

If we know spam terrorists have dangerous tools today, does it make sense for the world to wait?

Enter a Base-64 string.

Base64 encoding

Use this function to translate a string consisting of alpha-numeric characters and/or non-alpha-numeric characters into a base-64 representation.  You should be careful in performing URL encoding on the result because '+' and '/' will be converted into %2B and %2F, respectively.  Storing '%' in a database may cause a problem.

Example:

ブッシュさんって本当にイラクがWMDを持っているって思っていたの？

=>

Enter a string.