diff options
Diffstat (limited to 'signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz')
3 files changed, 302 insertions, 0 deletions
diff --git a/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/PKCS7DetachedSigner.java b/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/PKCS7DetachedSigner.java new file mode 100644 index 00000000..83df6a59 --- /dev/null +++ b/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/PKCS7DetachedSigner.java @@ -0,0 +1,176 @@ +package at.gv.egiz.pdfas.sigs.pkcs7detached; + +import iaik.asn1.ASN1Object; +import iaik.asn1.ObjectID; +import iaik.asn1.structures.AlgorithmID; +import iaik.asn1.structures.Attribute; +import iaik.asn1.structures.ChoiceOfTime; +import iaik.cms.ContentInfo; +import iaik.cms.IssuerAndSerialNumber; +import iaik.cms.SignedData; +import iaik.cms.SignerInfo; +import iaik.cms.Utils; +import iaik.pkcs.PKCSException; +import iaik.pkcs.pkcs7.Data; +import iaik.security.ecc.provider.ECCProvider; +import iaik.security.provider.IAIK; +import iaik.x509.X509Certificate; + +import java.io.FileInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.security.KeyStore; +import java.security.MessageDigest; +import java.security.NoSuchAlgorithmException; +import java.security.PrivateKey; +import java.security.cert.Certificate; +import java.util.Date; + +import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature; +import org.bouncycastle.cms.CMSException; +import org.bouncycastle.cms.CMSProcessable; +import org.bouncycastle.jce.provider.BouncyCastleProvider; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import at.gv.egiz.pdfas.common.exceptions.PdfAsException; +import at.gv.egiz.pdfas.common.exceptions.PdfAsSignatureException; +import at.gv.egiz.pdfas.common.utils.StringUtils; +import at.gv.egiz.pdfas.lib.api.sign.IPlainSigner; + +public class PKCS7DetachedSigner implements IPlainSigner { + + private static final Logger logger = LoggerFactory + .getLogger(PKCS7DetachedSigner.class); + + PrivateKey privKey; + X509Certificate cert; + + public PKCS7DetachedSigner(String file, String alias, String kspassword, + String keypassword, String type) throws PdfAsException { + try { + IAIK.addAsProvider(); + ECCProvider.addAsProvider(); + KeyStore ks = KeyStore.getInstance(type); + ks.load(new FileInputStream(file), kspassword.toCharArray()); + privKey = (PrivateKey) ks.getKey(alias, keypassword.toCharArray()); + cert = new X509Certificate(ks.getCertificate(alias).getEncoded()); + } catch (Throwable e) { + throw new PdfAsException("Failed to get KeyStore", e); + } + } + + public X509Certificate getCertificate() { + return cert; + } + + class CMSProcessableInputStream implements CMSProcessable { + + InputStream in; + + public CMSProcessableInputStream(InputStream is) { + in = is; + } + + public Object getContent() { + return null; + } + + public void write(OutputStream out) throws IOException, CMSException { + // read the content only one time + byte[] buffer = new byte[8 * 1024]; + int read; + while ((read = in.read(buffer)) != -1) { + out.write(buffer, 0, read); + } + in.close(); + } + } + + private static BouncyCastleProvider provider = new BouncyCastleProvider(); + + /* + * public byte[] sign(byte[] input, int[] byteRange) throws PdfAsException { + * CMSProcessableInputStream content = new CMSProcessableInputStream(new + * ByteArrayInputStream(input)); CMSSignedDataGenerator gen = new + * CMSSignedDataGenerator(); // CertificateChain List<X509Certificate> + * certList = Arrays.asList(cert); + * + * CertStore certStore = null; try { certStore = + * CertStore.getInstance("Collection", new + * CollectionCertStoreParameters(certList), provider); + * gen.addSigner(privKey, (X509Certificate)certList.get(0), + * CMSSignedGenerator.DIGEST_SHA256); gen.addCertificatesAndCRLs(certStore); + * CMSSignedData signedData = gen.generate(content, false, provider); return + * signedData.getEncoded(); } catch (Exception e) { // should be handled + * e.printStackTrace(); } throw new + * RuntimeException("Problem while preparing signature"); } + */ + + public byte[] sign(byte[] input, int[] byteRange) throws PdfAsException { + try { + // SignedDataStream signed_data_stream = new SignedDataStream( + // new ByteArrayInputStream(input), SignedDataStream.EXPLICIT); + // ByteArrayOutputStream baos = new ByteArrayOutputStream(); + // signed_data_stream.addCertificates(new Certificate[] { cert }); + // + // SubjectKeyID subjectKeyId = new SubjectKeyID(cert); + // SignerInfo signer1 = new SignerInfo(subjectKeyId, + // AlgorithmID.sha256, privKey); + // signed_data_stream.addSignerInfo(signer1); + // InputStream data_is = signed_data_stream.getInputStream(); + // if (signed_data_stream.getMode() == SignedDataStream.EXPLICIT) { + // byte[] buf = new byte[1024]; + // int r; + // while ((r = data_is.read(buf)) > 0) { + // // do something useful + // } + // } + // SubjectKeyID subjectKeyId = new SubjectKeyID(cert); + IssuerAndSerialNumber issuer = new IssuerAndSerialNumber(cert); + SignerInfo signer1 = new SignerInfo(issuer, AlgorithmID.sha256, + AlgorithmID.ecdsa_plain_With_SHA256, + privKey); + + SignedData si = new SignedData(input, SignedData.EXPLICIT); + si.addCertificates(new Certificate[] { cert }); + Attribute signingTime = new Attribute(ObjectID.signingTime, + new ASN1Object[] { new ChoiceOfTime(new Date()) + .toASN1Object() }); + Attribute contentType = new Attribute(ObjectID.contentType, new ASN1Object[] { + new ObjectID("1.2.840.113549.1.7.1") + }); + // Attribute signingCert = new + // Attribute(ObjectID.signingCertificateV2, + // new ASN1Object[] { cert.toASN1Object() }); + + Attribute[] attributes = new Attribute[] { signingTime, contentType }; + signer1.setSignedAttributes(attributes); + si.addSignerInfo(signer1); + InputStream dataIs = si.getInputStream(); + byte[] buf = new byte[1024]; + int r; + while ((r = dataIs.read(buf)) > 0) + ; // skip data + ContentInfo ci = new ContentInfo(si); + + return ci.getEncoded(); + } catch (NoSuchAlgorithmException e) { + throw new PdfAsSignatureException("", e); + } catch (iaik.cms.CMSException e) { + throw new PdfAsSignatureException("", e); + } catch (IOException e) { + throw new PdfAsSignatureException("", e); + } + } + + public String getPDFSubFilter() { + return PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED.getName(); + } + + public String getPDFFilter() { + return PDSignature.FILTER_ADOBE_PPKLITE.getName(); + } + +} diff --git a/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/PKCS7DetachedVerifier.java b/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/PKCS7DetachedVerifier.java new file mode 100644 index 00000000..ed7ae01c --- /dev/null +++ b/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/PKCS7DetachedVerifier.java @@ -0,0 +1,118 @@ +package at.gv.egiz.pdfas.sigs.pkcs7detached; + +import iaik.asn1.ObjectID; +import iaik.asn1.structures.AlgorithmID; +import iaik.cms.ContentInfo; +import iaik.cms.SignedData; +import iaik.cms.SignerInfo; +import iaik.security.ecc.provider.ECCProvider; +import iaik.security.provider.IAIK; +import iaik.x509.X509Certificate; + +import java.io.ByteArrayInputStream; +import java.io.FileOutputStream; +import java.security.SignatureException; +import java.util.ArrayList; +import java.util.List; + +import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import at.gv.egiz.pdfas.common.exceptions.PdfAsException; +import at.gv.egiz.pdfas.common.exceptions.PdfAsSignatureException; +import at.gv.egiz.pdfas.lib.api.Configuration; +import at.gv.egiz.pdfas.lib.api.verify.VerifyResult; +import at.gv.egiz.pdfas.lib.impl.verify.FilterEntry; +import at.gv.egiz.pdfas.lib.impl.verify.IVerifyFilter; +import at.gv.egiz.pdfas.lib.impl.verify.SignatureCheckImpl; +import at.gv.egiz.pdfas.lib.impl.verify.VerifyResultImpl; + +public class PKCS7DetachedVerifier implements IVerifyFilter { + + private static final Logger logger = LoggerFactory.getLogger(PKCS7DetachedVerifier.class); + + public PKCS7DetachedVerifier() { + IAIK.addAsProvider(); + ECCProvider.addAsProvider(); + } + + public List<VerifyResult> verify(byte[] contentData, byte[] signatureContent) + throws PdfAsException { + try { + List<VerifyResult> result = new ArrayList<VerifyResult>(); + + SignedData signedData = new SignedData(contentData, new AlgorithmID[] { + AlgorithmID.sha256 + }); + + FileOutputStream fos = new FileOutputStream("/tmp/verify.bin"); + fos.write(signatureContent); + fos.close(); + + ContentInfo ci = new ContentInfo(new ByteArrayInputStream( + signatureContent)); + if (!ci.getContentType().equals(ObjectID.cms_signedData)) { + throw new PdfAsException("No Signed DATA"); + } + //SignedData signedData = (SignedData)ci.getContent(); + //signedData.setContent(contentData); + + signedData.decode(ci.getContentInputStream()); + + // get the signer infos + SignerInfo[] signerInfos = signedData.getSignerInfos(); + // verify the signatures + for (int i = 0; i < signerInfos.length; i++) { + VerifyResultImpl verifyResult = new VerifyResultImpl(); + verifyResult.setSignatureData(contentData); + try { + // verify the signature for SignerInfo at index i + X509Certificate signer_cert = signedData.verify(i); + // if the signature is OK the certificate of the + // signer is returned + logger.info("Signature OK from signer: " + + signer_cert.getSubjectDN()); + verifyResult.setSignerCertificate(signer_cert); + verifyResult.setValueCheckCode(new SignatureCheckImpl(0, "OK")); + verifyResult.setManifestCheckCode(new SignatureCheckImpl(99, "not checked")); + verifyResult.setCertificateCheck(new SignatureCheckImpl(99, "not checked")); + verifyResult.setVerificationDone(true); + } catch (SignatureException ex) { + // if the signature is not OK a SignatureException + // is thrown + logger.info("Signature ERROR from signer: " + + signedData.getCertificate( + signerInfos[i].getSignerIdentifier()) + .getSubjectDN(), ex); + + verifyResult.setSignerCertificate( + signedData.getCertificate(signerInfos[i].getSignerIdentifier())); + verifyResult.setValueCheckCode(new SignatureCheckImpl(1, "failed to check signature")); + verifyResult.setManifestCheckCode(new SignatureCheckImpl(99, "not checked")); + verifyResult.setCertificateCheck(new SignatureCheckImpl(99, "not checked")); + verifyResult.setVerificationDone(false); + verifyResult.setVerificationException(new PdfAsSignatureException("failed to check signature", ex)); + } + result.add(verifyResult); + } + + return result; + } catch (Throwable e) { + throw new PdfAsException("Verify failed", e); + } + } + + public List<FilterEntry> getFiters() { + List<FilterEntry> result = new ArrayList<FilterEntry>(); + result.add(new FilterEntry(PDSignature.FILTER_ADOBE_PPKLITE, PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED)); + //result.add(new FilterEntry(PDSignature.FILTER_ADOBE_PPKLITE, PDSignature.SUBFILTER_ETSI_CADES_DETACHED)); + return result; + } + + public void setConfiguration(Configuration config) { + // TODO Auto-generated method stub + + } + +} diff --git a/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/package-info.java b/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/package-info.java new file mode 100644 index 00000000..69a99830 --- /dev/null +++ b/signature-standards/sigs-pkcs7detached/src/main/java/at/gv/egiz/pdfas/sigs/pkcs7detached/package-info.java @@ -0,0 +1,8 @@ +/** + * + */ +/** + * @author afitzek + * + */ +package at.gv.egiz.pdfas.sigs.pkcs7detached;
\ No newline at end of file |