Examples of org.bouncycastle.openssl.PEMWriter

org.bouncycastle.openssl.PEMWriter
General purpose writer for OpenSSL PEM objects.

        PEMReader r = new PEMReader(new InputStreamReader(is));
        return (KeyPair) r.readObject();
    }


    protected void doWriteKeyPair(KeyPair kp, OutputStream os) throws Exception {
        PEMWriter w = new PEMWriter(new OutputStreamWriter(os));
        w.writeObject(kp);
    }

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        //
        // PKCS7
        //
        ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        PEMWriter             pWrt = new PEMWriter(new OutputStreamWriter(bOut));
        
        pWrt.writeObject(d);
        
        pWrt.close();
        
        pemRd = new PEMReader(new InputStreamReader(new ByteArrayInputStream(bOut.toByteArray())));
        d = (ContentInfo)pemRd.readObject();    
        
        if (!d.getContentType().equals(CMSObjectIdentifiers.envelopedData))

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        KeyPair pair) 
        throws IOException
    {
        PEMReader pemRd;
        ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        PEMWriter             pWrt = new PEMWriter(new OutputStreamWriter(bOut));
        
        pWrt.writeObject(pair.getPublic());
        
        pWrt.close();


        pemRd = new PEMReader(new InputStreamReader(new ByteArrayInputStream(bOut.toByteArray())));
        
        PublicKey k = (PublicKey)pemRd.readObject();
        if (!k.equals(pair.getPublic()))
        {
            fail("Failed public key read: " + name);
        }
        
        bOut = new ByteArrayOutputStream();
        pWrt = new PEMWriter(new OutputStreamWriter(bOut));
        
        pWrt.writeObject(pair.getPrivate());
        
        pWrt.close();
        
        pemRd = new PEMReader(new InputStreamReader(new ByteArrayInputStream(bOut.toByteArray())));
        
        KeyPair kPair = (KeyPair)pemRd.readObject();
        if (!kPair.getPrivate().equals(pair.getPrivate()))

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        private String getKeyAsPem(Key key)
        {
            try (Writer sw = new StringWriter())
            {
                try (PEMWriter pemWriter = new PEMWriter(sw))
                {
                    pemWriter.writeObject(key);
                }
                catch (IOException e)
                {
                    throw new RuntimeException(e);
                }

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        //
        // PKCS7
        //
        ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        PEMWriter             pWrt = new PEMWriter(new OutputStreamWriter(bOut));
        
        pWrt.writeObject(d);
        
        pWrt.close();
        
        pemRd = new PEMReader(new InputStreamReader(new ByteArrayInputStream(bOut.toByteArray())));
        d = (ContentInfo)pemRd.readObject();    
        
        if (!d.getContentType().equals(CMSObjectIdentifiers.envelopedData))

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        KeyPair pair) 
        throws IOException
    {
        PEMReader pemRd;
        ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        PEMWriter             pWrt = new PEMWriter(new OutputStreamWriter(bOut));
        
        pWrt.writeObject(pair.getPublic());
        
        pWrt.close();


        pemRd = new PEMReader(new InputStreamReader(new ByteArrayInputStream(bOut.toByteArray())));
        
        PublicKey k = (PublicKey)pemRd.readObject();
        if (!k.equals(pair.getPublic()))
        {
            fail("Failed public key read: " + name);
        }
        
        bOut = new ByteArrayOutputStream();
        pWrt = new PEMWriter(new OutputStreamWriter(bOut));
        
        pWrt.writeObject(pair.getPrivate());
        
        pWrt.close();
        
        pemRd = new PEMReader(new InputStreamReader(new ByteArrayInputStream(bOut.toByteArray())));
        
        KeyPair kPair = (KeyPair)pemRd.readObject();
        if (!kPair.getPrivate().equals(pair.getPrivate()))

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        String      provider,
        String      algorithm)
        throws IOException
    {
        StringWriter sw = new StringWriter();
        PEMWriter pw = new PEMWriter(sw, provider);


        pw.writeObject(akp, algorithm, testPassword, random);
        pw.close();


        String data = sw.toString();


        PEMReader pr = new PEMReader(new StringReader(data), new Password(testPassword), provider);

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                StringWriter stringWriter = new StringWriter();


                /*
                 * Write in PEM format (openssl support)
                 */
                PEMWriter pemFormatWriter = new PEMWriter(stringWriter);
                pemFormatWriter.writeObject(keypair.getPrivate());
                pemFormatWriter.close();
                fos.write(stringWriter.toString().getBytes());
            } catch (IOException ioe) {
                throw ioe;
            } finally {
                if (fos != null) {

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            } catch (UnsatisfiedLinkError | UnsupportedOperationException e) {
              // Unexpected/Unsupported OS or Architecture
            }


            FileOutputStream os = new FileOutputStream(file);
            PEMWriter w = new PEMWriter(new OutputStreamWriter(os));
            w.writeObject(kp);
            w.flush();
            w.close();
        } catch (Exception e) {
            log.warn(MessageFormat.format("Unable to generate {0} keypair", algorithm), e);
            return;
        }
    }

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    public Object readPEM(Reader read, String password) throws Exception {
        return new PEMReader(read,new BasicPasswordFinder(password)).readObject();
    }


    public void writePEM(Writer writ, Object obj, String algorithm, char[] password) throws Exception {
        PEMWriter p = new PEMWriter(writ);
        p.writeObject(obj,algorithm,password,null);
        p.flush();
    }

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