[openssl-users] Java Snippet output is not equal to command line openssl command output , Why ?

[timmy pony]

Hi Vicktor,  Speed read the previous mail.



On Wed, Aug 1, 2018 at 4:28 PM Viktor Dukhovni <openssl-users at dukhovni.org>
wrote:

> On Wed, Aug 01, 2018 at 09:24:38AM +0100, timmy pony wrote:
>
> > I have tried this
> >
> > openssl dgst -sha256 -sign my_private.key -out /tmp/sign.sha256
> codeTosign.txt
>
> This produces raw binary output, no base64 encoding.  What is the
> content of the file "codeToSign.txt"?  Post the output of:
>
>     od -tx1 < /tmp/codeToSign.txt
>

 od -tx1 < codeToSign.txt

0000000    73  61  6d  70  6c  65  20  69  6e  70  75  74  0a

0000015


>
> > public class SHA256RSA {
> >
> >     public static void main(String[] args) throws Exception {
> >         String input = "sample input";
>
> This input has no newline ending, perhaps the disk file does.
>
> >         // Not a real private key! Replace with your private key!
> >         String strPk = "-----BEGIN PRIVATE
> KEY-----\nMIIEvwIBADANBgkqhkiG9"
> >                 + "w0BAQEFAASCBKkwggSlAgEAAoIBAQDJUGqaRB11KjxQ\nKHDeG"
> >                 +
> "........................................................"
> >                 + "Ldt0hAPNl4QKYWCfJm\nNf7Afqaa/RZq0+y/36v83NGENQ==\n"
> >                 + "-----END PRIVATE KEY-----\n";
>
> I sure hope your production code will *NOT* have the private key
> embedded in the executable.
>
> >         String base64Signature = signSHA256RSA(input,strPk);
> >         System.out.println("Signature="+base64Signature);
>
> This outputs a signature encoded in base64.
>
> --
>         Viktor.
> --
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>
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