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Message
From
31/10/2005 11:49:09
 
 
To
31/10/2005 10:26:21
General information
Forum:
Visual FoxPro
Category:
Troubleshooting
Miscellaneous
Thread ID:
01062778
Message ID:
01063661
Views:
21
>:) Bruce Schneier would argue that if there is no key involved then its encoding rather than encryption. A key taken from the total keyspace provides the random factor (crypto-variable) which is used in an algorithm to produce the cipher text. The same algorithm but with a different key produces a different cipher text for any given plain text. Encoding always produces the same cipher text for any given plain text because there is no key involved.
>
>

I don't agree. The only difference is:
- on encoding the key+algorithm is known
- on encryption the key+algorithm is unknown

A example:
JPEG is a BMP encoded
but until you don't know the algorithm of coding,
the JPEG it is a BMP encrypted.

You calls Bruce and say to it of to decode a JPEG without knowing the specifications.

To this point the question is:
who has written Refox
- they has decoded the bytecodes of VFP
or
- has made a reverse engineering of the dlls of VFP
(where a bytecodes decompiler exists).

The world is full of products legal been made with illegal methods.

>
>>Encoding is encryption. Encryption is simply the translation of data into a code typically by using an algorithm to scramble data. There are many types of encryption though (ciphers, asymmetric public-key, symmetric public-key, etc) and some are more effective than others.
>>
>>
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