Examples with ASN1InputStream com.android.org.bouncycastle.asn1.ASN1InputStream used on opensource projects

Example 11 with ASN1InputStream

use of com.android.org.bouncycastle.asn1.ASN1InputStream in project nhin-d by DirectProject.

the class AbstractX509Field method getDERObject.

/**
	 * Converts an encoded internal sequence object to a DERObject
	 * @param ext The encoded sequence as a byte array
	 * @return The converted DERObject
	 * @throws PolicyProcessException
	 */
protected DERObject getDERObject(byte[] ext) throws PolicyProcessException {
    ASN1InputStream aIn = null;
    try {
        aIn = new ASN1InputStream(ext);
        DERSequence seq = (DERSequence) aIn.readObject();
        IOUtils.closeQuietly(aIn);
        aIn = new ASN1InputStream(seq.getDEREncoded());
        return aIn.readObject();
    } catch (Exception e) {
        throw new PolicyProcessException("Exception processing data ", e);
    } finally {
        IOUtils.closeQuietly(aIn);
    }
}

Example 12 with ASN1InputStream

use of com.android.org.bouncycastle.asn1.ASN1InputStream in project XobotOS by xamarin.

the class CertPathValidatorUtilities method getObject.

private static DERObject getObject(String oid, byte[] ext) throws AnnotatedException {
    try {
        ASN1InputStream aIn = new ASN1InputStream(ext);
        ASN1OctetString octs = (ASN1OctetString) aIn.readObject();
        aIn = new ASN1InputStream(octs.getOctets());
        return aIn.readObject();
    } catch (Exception e) {
        throw new AnnotatedException("exception processing extension " + oid, e);
    }
}

Example 13 with ASN1InputStream

use of com.android.org.bouncycastle.asn1.ASN1InputStream in project XobotOS by xamarin.

the class CertPathValidatorUtilities method getAlgorithmIdentifier.

protected static AlgorithmIdentifier getAlgorithmIdentifier(PublicKey key) throws CertPathValidatorException {
    try {
        ASN1InputStream aIn = new ASN1InputStream(key.getEncoded());
        SubjectPublicKeyInfo info = SubjectPublicKeyInfo.getInstance(aIn.readObject());
        return info.getAlgorithmId();
    } catch (Exception e) {
        throw new ExtCertPathValidatorException("Subject public key cannot be decoded.", e);
    }
}

Example 14 with ASN1InputStream

use of com.android.org.bouncycastle.asn1.ASN1InputStream in project android_frameworks_base by AOSPA.

the class AndroidKeyStoreKeyPairGeneratorSpi method generateSelfSignedCertificateWithFakeSignature.

@SuppressWarnings("deprecation")
private X509Certificate generateSelfSignedCertificateWithFakeSignature(PublicKey publicKey) throws IOException, CertificateParsingException {
    V3TBSCertificateGenerator tbsGenerator = new V3TBSCertificateGenerator();
    ASN1ObjectIdentifier sigAlgOid;
    AlgorithmIdentifier sigAlgId;
    byte[] signature;
    switch(mKeymasterAlgorithm) {
        case KeymasterDefs.KM_ALGORITHM_EC:
            sigAlgOid = X9ObjectIdentifiers.ecdsa_with_SHA256;
            sigAlgId = new AlgorithmIdentifier(sigAlgOid);
            ASN1EncodableVector v = new ASN1EncodableVector();
            v.add(new DERInteger(0));
            v.add(new DERInteger(0));
            signature = new DERSequence().getEncoded();
            break;
        case KeymasterDefs.KM_ALGORITHM_RSA:
            sigAlgOid = PKCSObjectIdentifiers.sha256WithRSAEncryption;
            sigAlgId = new AlgorithmIdentifier(sigAlgOid, DERNull.INSTANCE);
            signature = new byte[1];
            break;
        default:
            throw new ProviderException("Unsupported key algorithm: " + mKeymasterAlgorithm);
    }
    try (ASN1InputStream publicKeyInfoIn = new ASN1InputStream(publicKey.getEncoded())) {
        tbsGenerator.setSubjectPublicKeyInfo(SubjectPublicKeyInfo.getInstance(publicKeyInfoIn.readObject()));
    }
    tbsGenerator.setSerialNumber(new ASN1Integer(mSpec.getCertificateSerialNumber()));
    X509Principal subject = new X509Principal(mSpec.getCertificateSubject().getEncoded());
    tbsGenerator.setSubject(subject);
    tbsGenerator.setIssuer(subject);
    tbsGenerator.setStartDate(new Time(mSpec.getCertificateNotBefore()));
    tbsGenerator.setEndDate(new Time(mSpec.getCertificateNotAfter()));
    tbsGenerator.setSignature(sigAlgId);
    TBSCertificate tbsCertificate = tbsGenerator.generateTBSCertificate();
    ASN1EncodableVector result = new ASN1EncodableVector();
    result.add(tbsCertificate);
    result.add(sigAlgId);
    result.add(new DERBitString(signature));
    return new X509CertificateObject(Certificate.getInstance(new DERSequence(result)));
}

Example 15 with ASN1InputStream

use of com.android.org.bouncycastle.asn1.ASN1InputStream in project oxAuth by GluuFederation.

the class RSASigner method validateSignature.

@Override
public boolean validateSignature(String signingInput, String signature) throws SignatureException {
    if (getSignatureAlgorithm() == null) {
        throw new SignatureException("The signature algorithm is null");
    }
    if (rsaPublicKey == null) {
        throw new SignatureException("The RSA public key is null");
    }
    if (signingInput == null) {
        throw new SignatureException("The signing input is null");
    }
    String algorithm = null;
    switch(getSignatureAlgorithm()) {
        case RS256:
            algorithm = "SHA-256";
            break;
        case RS384:
            algorithm = "SHA-384";
            break;
        case RS512:
            algorithm = "SHA-512";
            break;
        default:
            throw new SignatureException("Unsupported signature algorithm");
    }
    ASN1InputStream aIn = null;
    try {
        byte[] sigBytes = Base64Util.base64urldecode(signature);
        byte[] sigInBytes = signingInput.getBytes(Util.UTF8_STRING_ENCODING);
        RSAPublicKeySpec rsaPublicKeySpec = new RSAPublicKeySpec(rsaPublicKey.getModulus(), rsaPublicKey.getPublicExponent());
        KeyFactory keyFactory = KeyFactory.getInstance("RSA", "BC");
        PublicKey publicKey = keyFactory.generatePublic(rsaPublicKeySpec);
        Cipher cipher = Cipher.getInstance("RSA/None/PKCS1Padding", "BC");
        cipher.init(Cipher.DECRYPT_MODE, publicKey);
        byte[] decSig = cipher.doFinal(sigBytes);
        aIn = new ASN1InputStream(decSig);
        ASN1Sequence seq = (ASN1Sequence) aIn.readObject();
        MessageDigest hash = MessageDigest.getInstance(algorithm, "BC");
        hash.update(sigInBytes);
        ASN1OctetString sigHash = (ASN1OctetString) seq.getObjectAt(1);
        return MessageDigest.isEqual(hash.digest(), sigHash.getOctets());
    } catch (IOException e) {
        throw new SignatureException(e);
    } catch (NoSuchAlgorithmException e) {
        throw new SignatureException(e);
    } catch (InvalidKeyException e) {
        throw new SignatureException(e);
    } catch (InvalidKeySpecException e) {
        throw new SignatureException(e);
    } catch (NoSuchPaddingException e) {
        throw new SignatureException(e);
    } catch (BadPaddingException e) {
        throw new SignatureException(e);
    } catch (NoSuchProviderException e) {
        throw new SignatureException(e);
    } catch (IllegalBlockSizeException e) {
        throw new SignatureException(e);
    } catch (Exception e) {
        throw new SignatureException(e);
    } finally {
        IOUtils.closeQuietly(aIn);
    }
}