Examples with RecipientInfo com.github.zhenwei.pkix.util.asn1.cms.RecipientInfo used on opensource projects

Example 1 with RecipientInfo

use of com.github.zhenwei.pkix.util.asn1.cms.RecipientInfo in project PdfBox-Android by TomRoush.

the class PublicKeySecurityHandler method createDERForRecipient.

private ASN1Primitive createDERForRecipient(byte[] in, X509Certificate cert) throws IOException, GeneralSecurityException {
    String algorithm = PKCSObjectIdentifiers.RC2_CBC.getId();
    AlgorithmParameterGenerator apg;
    KeyGenerator keygen;
    Cipher cipher;
    try {
        apg = AlgorithmParameterGenerator.getInstance(algorithm, SecurityProvider.getProvider());
        keygen = KeyGenerator.getInstance(algorithm, SecurityProvider.getProvider());
        cipher = Cipher.getInstance(algorithm, SecurityProvider.getProvider());
    } catch (NoSuchAlgorithmException e) {
        // happens when using the command line app .jar file
        throw new IOException("Could not find a suitable javax.crypto provider for algorithm " + algorithm + "; possible reason: using an unsigned .jar file", e);
    } catch (NoSuchPaddingException e) {
        // should never happen, if this happens throw IOException instead
        throw new RuntimeException("Could not find a suitable javax.crypto provider", e);
    }
    AlgorithmParameters parameters = apg.generateParameters();
    ASN1InputStream input = new ASN1InputStream(parameters.getEncoded("ASN.1"));
    ASN1Primitive object = input.readObject();
    input.close();
    keygen.init(128);
    SecretKey secretkey = keygen.generateKey();
    cipher.init(1, secretkey, parameters);
    byte[] bytes = cipher.doFinal(in);
    KeyTransRecipientInfo recipientInfo = computeRecipientInfo(cert, secretkey.getEncoded());
    DERSet set = new DERSet(new RecipientInfo(recipientInfo));
    AlgorithmIdentifier algorithmId = new AlgorithmIdentifier(new ASN1ObjectIdentifier(algorithm), object);
    EncryptedContentInfo encryptedInfo = new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmId, new DEROctetString(bytes));
    EnvelopedData enveloped = new EnvelopedData(null, set, encryptedInfo, (ASN1Set) null);
    ContentInfo contentInfo = new ContentInfo(PKCSObjectIdentifiers.envelopedData, enveloped);
    return contentInfo.toASN1Primitive();
}

Example 2 with RecipientInfo

use of com.github.zhenwei.pkix.util.asn1.cms.RecipientInfo in project pdfbox by apache.

the class PublicKeySecurityHandler method createDERForRecipient.

private ASN1Primitive createDERForRecipient(byte[] in, X509Certificate cert) throws IOException, GeneralSecurityException {
    String algorithm = PKCSObjectIdentifiers.RC2_CBC.getId();
    AlgorithmParameterGenerator apg;
    KeyGenerator keygen;
    Cipher cipher;
    try {
        Provider provider = SecurityProvider.getProvider();
        apg = AlgorithmParameterGenerator.getInstance(algorithm, provider);
        keygen = KeyGenerator.getInstance(algorithm, provider);
        cipher = Cipher.getInstance(algorithm, provider);
    } catch (NoSuchAlgorithmException e) {
        // happens when using the command line app .jar file
        throw new IOException("Could not find a suitable javax.crypto provider for algorithm " + algorithm + "; possible reason: using an unsigned .jar file", e);
    } catch (NoSuchPaddingException e) {
        // should never happen, if this happens throw IOException instead
        throw new RuntimeException("Could not find a suitable javax.crypto provider", e);
    }
    AlgorithmParameters parameters = apg.generateParameters();
    ASN1Primitive object;
    try (ASN1InputStream input = new ASN1InputStream(parameters.getEncoded("ASN.1"))) {
        object = input.readObject();
    }
    keygen.init(128);
    SecretKey secretkey = keygen.generateKey();
    cipher.init(1, secretkey, parameters);
    byte[] bytes = cipher.doFinal(in);
    KeyTransRecipientInfo recipientInfo = computeRecipientInfo(cert, secretkey.getEncoded());
    DERSet set = new DERSet(new RecipientInfo(recipientInfo));
    AlgorithmIdentifier algorithmId = new AlgorithmIdentifier(new ASN1ObjectIdentifier(algorithm), object);
    EncryptedContentInfo encryptedInfo = new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmId, new DEROctetString(bytes));
    EnvelopedData enveloped = new EnvelopedData(null, set, encryptedInfo, (ASN1Set) null);
    ContentInfo contentInfo = new ContentInfo(PKCSObjectIdentifiers.envelopedData, enveloped);
    return contentInfo.toASN1Primitive();
}

Example 3 with RecipientInfo

use of com.github.zhenwei.pkix.util.asn1.cms.RecipientInfo in project OpenPDF by LibrePDF.

the class PdfPublicKeySecurityHandler method createDERForRecipient.

private ASN1Primitive createDERForRecipient(byte[] in, X509Certificate cert) throws IOException, GeneralSecurityException {
    String s = "1.2.840.113549.3.2";
    AlgorithmParameterGenerator algorithmparametergenerator = AlgorithmParameterGenerator.getInstance(s);
    AlgorithmParameters algorithmparameters = algorithmparametergenerator.generateParameters();
    ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(algorithmparameters.getEncoded("ASN.1"));
    ASN1InputStream asn1inputstream = new ASN1InputStream(bytearrayinputstream);
    ASN1Primitive derobject = asn1inputstream.readObject();
    KeyGenerator keygenerator = KeyGenerator.getInstance(s);
    keygenerator.init(128);
    SecretKey secretkey = keygenerator.generateKey();
    Cipher cipher = Cipher.getInstance(s);
    cipher.init(1, secretkey, algorithmparameters);
    byte[] abyte1 = cipher.doFinal(in);
    DEROctetString deroctetstring = new DEROctetString(abyte1);
    KeyTransRecipientInfo keytransrecipientinfo = computeRecipientInfo(cert, secretkey.getEncoded());
    DERSet derset = new DERSet(new RecipientInfo(keytransrecipientinfo));
    AlgorithmIdentifier algorithmidentifier = new AlgorithmIdentifier(new ASN1ObjectIdentifier(s), derobject);
    EncryptedContentInfo encryptedcontentinfo = new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmidentifier, deroctetstring);
    ASN1Set set = null;
    EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo, set);
    ContentInfo contentinfo = new ContentInfo(PKCSObjectIdentifiers.envelopedData, env);
    // return contentinfo.getDERObject();
    return contentinfo.toASN1Primitive();
// ******************************************************************************
}

Example 4 with RecipientInfo

use of com.github.zhenwei.pkix.util.asn1.cms.RecipientInfo in project LinLong-Java by zhenwei1108.

the class KeyAgreeRecipientInfoGenerator method generate.

public RecipientInfo generate(GenericKey contentEncryptionKey) throws CMSException {
    OriginatorIdentifierOrKey originator = new OriginatorIdentifierOrKey(createOriginatorPublicKey(originatorKeyInfo));
    AlgorithmIdentifier keyEncAlg;
    if (CMSUtils.isDES(keyEncryptionOID.getId()) || keyEncryptionOID.equals(PKCSObjectIdentifiers.id_alg_CMSRC2wrap)) {
        keyEncAlg = new AlgorithmIdentifier(keyEncryptionOID, DERNull.INSTANCE);
    } else if (CMSUtils.isGOST(keyAgreementOID)) {
        keyEncAlg = new AlgorithmIdentifier(keyEncryptionOID, new Gost2814789KeyWrapParameters(CryptoProObjectIdentifiers.id_Gost28147_89_CryptoPro_A_ParamSet));
    } else {
        keyEncAlg = new AlgorithmIdentifier(keyEncryptionOID);
    }
    AlgorithmIdentifier keyAgreeAlg = new AlgorithmIdentifier(keyAgreementOID, keyEncAlg);
    ASN1Sequence recipients = generateRecipientEncryptedKeys(keyAgreeAlg, keyEncAlg, contentEncryptionKey);
    byte[] userKeyingMaterial = getUserKeyingMaterial(keyAgreeAlg);
    if (userKeyingMaterial != null) {
        return new RecipientInfo(new KeyAgreeRecipientInfo(originator, new DEROctetString(userKeyingMaterial), keyAgreeAlg, recipients));
    } else {
        return new RecipientInfo(new KeyAgreeRecipientInfo(originator, null, keyAgreeAlg, recipients));
    }
}

Example 5 with RecipientInfo

use of com.github.zhenwei.pkix.util.asn1.cms.RecipientInfo in project LinLong-Java by zhenwei1108.

the class KeyTransRecipientInfoGenerator method generate.

public final RecipientInfo generate(GenericKey contentEncryptionKey) throws CMSException {
    byte[] encryptedKeyBytes;
    try {
        encryptedKeyBytes = wrapper.generateWrappedKey(contentEncryptionKey);
    } catch (OperatorException e) {
        throw new CMSException("exception wrapping content key: " + e.getMessage(), e);
    }
    RecipientIdentifier recipId;
    if (issuerAndSerial != null) {
        recipId = new RecipientIdentifier(issuerAndSerial);
    } else {
        recipId = new RecipientIdentifier(new DEROctetString(subjectKeyIdentifier));
    }
    return new RecipientInfo(new KeyTransRecipientInfo(recipId, wrapper.getAlgorithmIdentifier(), new DEROctetString(encryptedKeyBytes)));
}