Hi,
We've got a bit of a problem we're trying to resolve. We need
to accept some mildly sensitive data passed into A4D as URL parameters
from some Java code. To do this, we're combining the parameters into
a single string, blowfishing that with a known key (and an empty IV),
base64ing that, then URL encoding that to pass as a URL parameter.
This all works fine when I have A4D do both the encoding and the
decoding, but when the encoding is being done on the other system, we
get gibberish as the output. Conversely, if I have A4D do the
encoding and then use an online tool to test the decrypting, it also
doesn't recover the plain text correctly (although it can be close
sometimes). This is the online decryption tool I've tried:
http://www.tools4noobs.com/online_tools/decrypt/
Here's an example:
$testencode := Base64 Encode(Blowfish Encrypt("A chunk of test
plaintext goes here.";"A Random Key";""))
results in $testencode = bN31CKg6ItVf3KMqQp6nPU6LmNg
+azEv2L76SCOGVgkza0yGztOcaQ==
And then reversing it, like so:
$testdecode:=Blowfish Decrypt(Base64 Decode($TestEncode);"A Random
Key";"")
results in $testdecode = A chunk of test plaintext goes here.
But when I try decoding it with the online tool, I get:
So, any ideas? One question that has come up from our
developer is that the Java code that does the encryption has many more
options than just the initialization vector. Are there values that we
can use in the Java code that will match the defaults being used by
A4D? Things like padding, mode, etc...
Any help would be much appreciated!
---SCJ
P.S. We're using A4D v4.5r1 with 4D v2004.8 on a OSX 10.4.11 server.
--
Scott C. Jensen
Asst. Director, Office of Info Services
MIT Corporate Relations - Industrial Liaison Program
Room W98-050 600 Memorial Drive Cambridge, MA 02139
617/253-0441 FAX: 617/258-0796 Email: [email protected]
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