> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Iliadis Yannis
> Sent: Wednesday, March 07, 2007 3:50 PM
> To: Post all your questions about iText here
> Subject: Re: [iText-questions] bouncy castle
>
> Concerning BouncyCastle versions.
>
> I have read about the iText 2 specs, that it will work on
> Java 5. But what about the BouncyCastle jars.
> Do I need to download the jdk 1.5 jars or will the jdk 1.4 do
> the work?
>
The 1.4 will work (I'm using it with java 5) but it's advisable to get
the right version if you are going to use it as provider.
Paulo
>
> 2007/3/2, Paulo Soares <[EMAIL PROTECTED]>:
>
> Unfortunately iText needs more than algorithms and RSA
> public/private
> key implementation, most of those already present in
> jdk 1.4. There's
> also PKCS#7 assembly and disassembly and other asn1
> operations that the
> jce doesn't give you. Even if jdk 1.5 could provide all
> that, iText
> won't leave jdk 1.4 in the near future. By the way, the
> jce is still
> used for the algorithms and signature, BouncyCastle
> is/will be used for
> high level asn1 manipulation and a few other things. I
> fail to see why
> you are so desperate to kill BouncyCastle and add
> layers of indirection
> and multiple implementations, I have enough work as it is.
>
> Maybe I'm missing the point here. If that's the case
> please prepare your
> code implementation so that this can be discussed
> grounded on something
> tangible.
>
> Paulo
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On
> > Behalf Of robert engels
> > Sent: Friday, March 02, 2007 5:21 PM
> > To: itext iText here
> > Subject: [iText-questions] bouncy castle
> >
> > paul,
> >
> > I think you misunderstand the JCE system or what I am
> stating -
> > although I did not use the term provider correctly in
> the strictest
> > sense.
> >
> > The SUN provider in 1.5 includes significantly more
> cryptography
> > algorithms than the 1.4 and prior releases - most
> importantly it
> > includes an RSA public/private key implementation.
> >
> > One point you make that is almost correct, is that it
> does make it
> > easier to easier to port to C#, but it is not a direct compile
> > anyway, so I am not sure why the Java version
> wouldn't use JCE.
> >
> > Even so, supporting both easily only requires an
> additional layer of
> > indirection, just create a PdfCryptography interface.
> There can be a
> > implementation that uses JCE, and an implementation
> that uses bouncy
> > castle directly. The C# version would probably only
> port over the
> > 'bouncy castle' version.
> >
> > Maybe if you can explain why using bouncy castle
> directly is a good
> > solution I could understand this, and why the extra layer of
> > indirection is not a valid solution.
> >
> > Thanks,
> > Robert
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