Information générale
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Downside there may be the increased size of the resulting string. And it's not really encrypted - just encoded.
TBH, as a programmed looking at the encoded string probably the first thing I try would be base64 decoding.
Simple 'letter substitution' might be enough - though maybe with a more random mapping than I suggested?
>tstring = "abc123xyz"
>
>tencrypted = STRCONV( STRCONV( m.tstring ,13 ) , 13 ) && double base64 encoded
>
>tdecrypted = STRCONV( STRCONV( m.tencrypted ,14 ) , 14 ) && double base64 decoded
>
>
>>Jos
>>
>>I don't want to use complex third party encription tools
>>
>>I was just wondering if someone could be able to guess and revert the letters in the blob field
>>even if invert many letters and numbers. (without having to source code I used to encrypt the field)
>>
>>Moises
>>
>>
>>
>>>Moises,
>>>
>>>1) From who are you trying to protect this information? Casual users or more experienced attacker?
>>
>>Casual users
>>
>>
>>>2) What is the value of the information if it is stolen / compromised? High or low?
>>
>>Low
>>
>>>3) For how long is the information valuable i.e. for how long must it be protected?
>>
>>
>>Long time
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