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Diffstat (limited to 'pg/src/main/java/org/bouncycastle/openpgp/examples/ClearSignedFileProcessor.java')
-rw-r--r--pg/src/main/java/org/bouncycastle/openpgp/examples/ClearSignedFileProcessor.java391
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diff --git a/pg/src/main/java/org/bouncycastle/openpgp/examples/ClearSignedFileProcessor.java b/pg/src/main/java/org/bouncycastle/openpgp/examples/ClearSignedFileProcessor.java
deleted file mode 100644
index 5076732d..00000000
--- a/pg/src/main/java/org/bouncycastle/openpgp/examples/ClearSignedFileProcessor.java
+++ /dev/null
@@ -1,391 +0,0 @@
-package org.bouncycastle.openpgp.examples;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.security.NoSuchAlgorithmException;
-import java.security.NoSuchProviderException;
-import java.security.Security;
-import java.security.SignatureException;
-import java.util.Iterator;
-
-import org.bouncycastle.bcpg.ArmoredInputStream;
-import org.bouncycastle.bcpg.ArmoredOutputStream;
-import org.bouncycastle.bcpg.BCPGOutputStream;
-import org.bouncycastle.jce.provider.BouncyCastleProvider;
-import org.bouncycastle.openpgp.PGPException;
-import org.bouncycastle.openpgp.PGPPrivateKey;
-import org.bouncycastle.openpgp.PGPPublicKey;
-import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
-import org.bouncycastle.openpgp.PGPSecretKey;
-import org.bouncycastle.openpgp.PGPSignature;
-import org.bouncycastle.openpgp.PGPSignatureGenerator;
-import org.bouncycastle.openpgp.PGPSignatureList;
-import org.bouncycastle.openpgp.PGPSignatureSubpacketGenerator;
-import org.bouncycastle.openpgp.PGPUtil;
-import org.bouncycastle.openpgp.jcajce.JcaPGPObjectFactory;
-import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
-import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
-import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
-import org.bouncycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
-
-/**
- * A simple utility class that creates clear signed files and verifies them.
- * <p>
- * To sign a file: ClearSignedFileProcessor -s fileName secretKey passPhrase.<br>
- * <p>
- * To decrypt: ClearSignedFileProcessor -v fileName signatureFile publicKeyFile.
- */
-public class ClearSignedFileProcessor
-{
- private static int readInputLine(ByteArrayOutputStream bOut, InputStream fIn)
- throws IOException
- {
- bOut.reset();
-
- int lookAhead = -1;
- int ch;
-
- while ((ch = fIn.read()) >= 0)
- {
- bOut.write(ch);
- if (ch == '\r' || ch == '\n')
- {
- lookAhead = readPassedEOL(bOut, ch, fIn);
- break;
- }
- }
-
- return lookAhead;
- }
-
- private static int readInputLine(ByteArrayOutputStream bOut, int lookAhead, InputStream fIn)
- throws IOException
- {
- bOut.reset();
-
- int ch = lookAhead;
-
- do
- {
- bOut.write(ch);
- if (ch == '\r' || ch == '\n')
- {
- lookAhead = readPassedEOL(bOut, ch, fIn);
- break;
- }
- }
- while ((ch = fIn.read()) >= 0);
-
- if (ch < 0)
- {
- lookAhead = -1;
- }
-
- return lookAhead;
- }
-
- private static int readPassedEOL(ByteArrayOutputStream bOut, int lastCh, InputStream fIn)
- throws IOException
- {
- int lookAhead = fIn.read();
-
- if (lastCh == '\r' && lookAhead == '\n')
- {
- bOut.write(lookAhead);
- lookAhead = fIn.read();
- }
-
- return lookAhead;
- }
-
- /*
- * verify a clear text signed file
- */
- private static void verifyFile(
- InputStream in,
- InputStream keyIn,
- String resultName)
- throws Exception
- {
- ArmoredInputStream aIn = new ArmoredInputStream(in);
- OutputStream out = new BufferedOutputStream(new FileOutputStream(resultName));
-
-
-
- //
- // write out signed section using the local line separator.
- // note: trailing white space needs to be removed from the end of
- // each line RFC 4880 Section 7.1
- //
- ByteArrayOutputStream lineOut = new ByteArrayOutputStream();
- int lookAhead = readInputLine(lineOut, aIn);
- byte[] lineSep = getLineSeparator();
-
- if (lookAhead != -1 && aIn.isClearText())
- {
- byte[] line = lineOut.toByteArray();
- out.write(line, 0, getLengthWithoutSeparatorOrTrailingWhitespace(line));
- out.write(lineSep);
-
- while (lookAhead != -1 && aIn.isClearText())
- {
- lookAhead = readInputLine(lineOut, lookAhead, aIn);
-
- line = lineOut.toByteArray();
- out.write(line, 0, getLengthWithoutSeparatorOrTrailingWhitespace(line));
- out.write(lineSep);
- }
- }
-
- out.close();
-
- PGPPublicKeyRingCollection pgpRings = new PGPPublicKeyRingCollection(keyIn, new JcaKeyFingerprintCalculator());
-
- JcaPGPObjectFactory pgpFact = new JcaPGPObjectFactory(aIn);
- PGPSignatureList p3 = (PGPSignatureList)pgpFact.nextObject();
- PGPSignature sig = p3.get(0);
-
- PGPPublicKey publicKey = pgpRings.getPublicKey(sig.getKeyID());
- sig.init(new JcaPGPContentVerifierBuilderProvider().setProvider("BC"), publicKey);
-
- //
- // read the input, making sure we ignore the last newline.
- //
-
- InputStream sigIn = new BufferedInputStream(new FileInputStream(resultName));
-
- lookAhead = readInputLine(lineOut, sigIn);
-
- processLine(sig, lineOut.toByteArray());
-
- if (lookAhead != -1)
- {
- do
- {
- lookAhead = readInputLine(lineOut, lookAhead, sigIn);
-
- sig.update((byte)'\r');
- sig.update((byte)'\n');
-
- processLine(sig, lineOut.toByteArray());
- }
- while (lookAhead != -1);
- }
-
- sigIn.close();
-
- if (sig.verify())
- {
- System.out.println("signature verified.");
- }
- else
- {
- System.out.println("signature verification failed.");
- }
- }
-
- private static byte[] getLineSeparator()
- {
- String nl = System.getProperty("line.separator");
- byte[] nlBytes = new byte[nl.length()];
-
- for (int i = 0; i != nlBytes.length; i++)
- {
- nlBytes[i] = (byte)nl.charAt(i);
- }
-
- return nlBytes;
- }
-
- /*
- * create a clear text signed file.
- */
- private static void signFile(
- String fileName,
- InputStream keyIn,
- OutputStream out,
- char[] pass,
- String digestName)
- throws IOException, NoSuchAlgorithmException, NoSuchProviderException, PGPException, SignatureException
- {
- int digest;
-
- if (digestName.equals("SHA256"))
- {
- digest = PGPUtil.SHA256;
- }
- else if (digestName.equals("SHA384"))
- {
- digest = PGPUtil.SHA384;
- }
- else if (digestName.equals("SHA512"))
- {
- digest = PGPUtil.SHA512;
- }
- else if (digestName.equals("MD5"))
- {
- digest = PGPUtil.MD5;
- }
- else if (digestName.equals("RIPEMD160"))
- {
- digest = PGPUtil.RIPEMD160;
- }
- else
- {
- digest = PGPUtil.SHA1;
- }
-
- PGPSecretKey pgpSecKey = PGPExampleUtil.readSecretKey(keyIn);
- PGPPrivateKey pgpPrivKey = pgpSecKey.extractPrivateKey(new JcePBESecretKeyDecryptorBuilder().setProvider("BC").build(pass));
- PGPSignatureGenerator sGen = new PGPSignatureGenerator(new JcaPGPContentSignerBuilder(pgpSecKey.getPublicKey().getAlgorithm(), digest).setProvider("BC"));
- PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
-
- sGen.init(PGPSignature.CANONICAL_TEXT_DOCUMENT, pgpPrivKey);
-
- Iterator it = pgpSecKey.getPublicKey().getUserIDs();
- if (it.hasNext())
- {
- spGen.setSignerUserID(false, (String)it.next());
- sGen.setHashedSubpackets(spGen.generate());
- }
-
- InputStream fIn = new BufferedInputStream(new FileInputStream(fileName));
- ArmoredOutputStream aOut = new ArmoredOutputStream(out);
-
- aOut.beginClearText(digest);
-
- //
- // note the last \n/\r/\r\n in the file is ignored
- //
- ByteArrayOutputStream lineOut = new ByteArrayOutputStream();
- int lookAhead = readInputLine(lineOut, fIn);
-
- processLine(aOut, sGen, lineOut.toByteArray());
-
- if (lookAhead != -1)
- {
- do
- {
- lookAhead = readInputLine(lineOut, lookAhead, fIn);
-
- sGen.update((byte)'\r');
- sGen.update((byte)'\n');
-
- processLine(aOut, sGen, lineOut.toByteArray());
- }
- while (lookAhead != -1);
- }
-
- fIn.close();
-
- aOut.endClearText();
-
- BCPGOutputStream bOut = new BCPGOutputStream(aOut);
-
- sGen.generate().encode(bOut);
-
- aOut.close();
- }
-
- private static void processLine(PGPSignature sig, byte[] line)
- throws SignatureException, IOException
- {
- int length = getLengthWithoutWhiteSpace(line);
- if (length > 0)
- {
- sig.update(line, 0, length);
- }
- }
-
- private static void processLine(OutputStream aOut, PGPSignatureGenerator sGen, byte[] line)
- throws SignatureException, IOException
- {
- // note: trailing white space needs to be removed from the end of
- // each line for signature calculation RFC 4880 Section 7.1
- int length = getLengthWithoutWhiteSpace(line);
- if (length > 0)
- {
- sGen.update(line, 0, length);
- }
-
- aOut.write(line, 0, line.length);
- }
-
- private static int getLengthWithoutSeparatorOrTrailingWhitespace(byte[] line)
- {
- int end = line.length - 1;
-
- while (end >= 0 && isWhiteSpace(line[end]))
- {
- end--;
- }
-
- return end + 1;
- }
-
- private static boolean isLineEnding(byte b)
- {
- return b == '\r' || b == '\n';
- }
-
- private static int getLengthWithoutWhiteSpace(byte[] line)
- {
- int end = line.length - 1;
-
- while (end >= 0 && isWhiteSpace(line[end]))
- {
- end--;
- }
-
- return end + 1;
- }
-
- private static boolean isWhiteSpace(byte b)
- {
- return isLineEnding(b) || b == '\t' || b == ' ';
- }
-
- public static void main(
- String[] args)
- throws Exception
- {
- Security.addProvider(new BouncyCastleProvider());
-
- if (args[0].equals("-s"))
- {
- InputStream keyIn = PGPUtil.getDecoderStream(new FileInputStream(args[2]));
- FileOutputStream out = new FileOutputStream(args[1] + ".asc");
-
- if (args.length == 4)
- {
- signFile(args[1], keyIn, out, args[3].toCharArray(), "SHA1");
- }
- else
- {
- signFile(args[1], keyIn, out, args[3].toCharArray(), args[4]);
- }
- }
- else if (args[0].equals("-v"))
- {
- if (args[1].indexOf(".asc") < 0)
- {
- System.err.println("file needs to end in \".asc\"");
- System.exit(1);
- }
- FileInputStream in = new FileInputStream(args[1]);
- InputStream keyIn = PGPUtil.getDecoderStream(new FileInputStream(args[2]));
-
- verifyFile(in, keyIn, args[1].substring(0, args[1].length() - 4));
- }
- else
- {
- System.err.println("usage: ClearSignedFileProcessor [-s file keyfile passPhrase]|[-v sigFile keyFile]");
- }
- }
-}
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