Examples with PrivateKeyInfo org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo used on opensource projects

Example 36 with PrivateKeyInfo

use of org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo in project BiglyBT by BiglySoftware.

the class PEMReader method readECPrivateKey.

private KeyPair readECPrivateKey(String endMarker) throws IOException {
    try {
        ECPrivateKeyStructure pKey = new ECPrivateKeyStructure((ASN1Sequence) ASN1Object.fromByteArray(readBytes(endMarker)));
        AlgorithmIdentifier algId = new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, pKey.getParameters());
        PrivateKeyInfo privInfo = new PrivateKeyInfo(algId, pKey.getDERObject());
        SubjectPublicKeyInfo pubInfo = new SubjectPublicKeyInfo(algId, pKey.getPublicKey().getBytes());
        PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(privInfo.getEncoded());
        X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(pubInfo.getEncoded());
        KeyFactory fact = KeyFactory.getInstance("ECDSA", provider);
        return new KeyPair(fact.generatePublic(pubSpec), fact.generatePrivate(privSpec));
    } catch (ClassCastException e) {
        throw new IOException("wrong ASN.1 object found in stream");
    } catch (Exception e) {
        throw new IOException("problem parsing EC private key: " + e);
    }
}

Example 37 with PrivateKeyInfo

use of org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo in project BiglyBT by BiglySoftware.

the class PEMWriter method writeObject.

public void writeObject(Object o) throws IOException {
    String type;
    byte[] encoding;
    if (o instanceof X509Certificate) {
        type = "CERTIFICATE";
        try {
            encoding = ((X509Certificate) o).getEncoded();
        } catch (CertificateEncodingException e) {
            throw new IOException("Cannot encode object: " + e.toString());
        }
    } else if (o instanceof X509CRL) {
        type = "X509 CRL";
        try {
            encoding = ((X509CRL) o).getEncoded();
        } catch (CRLException e) {
            throw new IOException("Cannot encode object: " + e.toString());
        }
    } else if (o instanceof KeyPair) {
        writeObject(((KeyPair) o).getPrivate());
        return;
    } else if (o instanceof PrivateKey) {
        PrivateKeyInfo info = new PrivateKeyInfo((ASN1Sequence) ASN1Object.fromByteArray(((Key) o).getEncoded()));
        if (o instanceof RSAPrivateKey) {
            type = "RSA PRIVATE KEY";
            encoding = info.getPrivateKey().getEncoded();
        } else if (o instanceof DSAPrivateKey) {
            type = "DSA PRIVATE KEY";
            DSAParameter p = DSAParameter.getInstance(info.getAlgorithmId().getParameters());
            ASN1EncodableVector v = new ASN1EncodableVector();
            v.add(new DERInteger(0));
            v.add(new DERInteger(p.getP()));
            v.add(new DERInteger(p.getQ()));
            v.add(new DERInteger(p.getG()));
            BigInteger x = ((DSAPrivateKey) o).getX();
            BigInteger y = p.getG().modPow(x, p.getP());
            v.add(new DERInteger(y));
            v.add(new DERInteger(x));
            encoding = new DERSequence(v).getEncoded();
        } else {
            throw new IOException("Cannot identify private key");
        }
    } else if (o instanceof PublicKey) {
        type = "PUBLIC KEY";
        encoding = ((PublicKey) o).getEncoded();
    } else if (o instanceof X509AttributeCertificate) {
        type = "ATTRIBUTE CERTIFICATE";
        encoding = ((X509V2AttributeCertificate) o).getEncoded();
    } else if (o instanceof PKCS10CertificationRequest) {
        type = "CERTIFICATE REQUEST";
        encoding = ((PKCS10CertificationRequest) o).getEncoded();
    } else if (o instanceof ContentInfo) {
        type = "PKCS7";
        encoding = ((ContentInfo) o).getEncoded();
    } else {
        throw new IOException("unknown object passed - can't encode.");
    }
    writeHeader(type);
    writeEncoded(encoding);
    writeFooter(type);
}

Example 38 with PrivateKeyInfo

use of org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo in project certmgr by hdecarne.

the class PKCS12CertReaderWriter method convertPrivateKey.

private static PrivateKey convertPrivateKey(PKCS8EncryptedPrivateKeyInfo safeBagValue, String resource, PasswordCallback password) throws IOException {
    PrivateKeyInfo decryptedSafeBagValue = null;
    PKCSException decryptException = null;
    while (decryptedSafeBagValue == null) {
        try {
            decryptedSafeBagValue = safeBagValue.decryptPrivateKeyInfo(buildInputDecryptorProvider(resource, password, decryptException));
        } catch (PKCSException e) {
            decryptException = e;
        }
    }
    return convertPrivateKey(decryptedSafeBagValue);
}

Example 39 with PrivateKeyInfo

use of org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo in project vespa by vespa-engine.

the class KeyUtils method fromPemEncodedPrivateKey.

public static PrivateKey fromPemEncodedPrivateKey(String pem) {
    try (PEMParser parser = new PEMParser(new StringReader(pem))) {
        Object pemObject = parser.readObject();
        if (pemObject instanceof PrivateKeyInfo) {
            PrivateKeyInfo keyInfo = (PrivateKeyInfo) pemObject;
            PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyInfo.getEncoded());
            return KeyFactory.getInstance(KeyAlgorithm.RSA.getAlgorithmName()).generatePrivate(keySpec);
        } else if (pemObject instanceof PEMKeyPair) {
            PEMKeyPair pemKeypair = (PEMKeyPair) pemObject;
            PrivateKeyInfo keyInfo = pemKeypair.getPrivateKeyInfo();
            JcaPEMKeyConverter pemConverter = new JcaPEMKeyConverter();
            return pemConverter.getPrivateKey(keyInfo);
        }
        throw new IllegalArgumentException("Unexpected type of PEM type: " + pemObject);
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    } catch (GeneralSecurityException e) {
        throw new RuntimeException(e);
    }
}

Example 40 with PrivateKeyInfo

use of org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo in project android_packages_apps_Settings by omnirom.

the class CredentialStorage method isHardwareBackedKey.

private boolean isHardwareBackedKey(byte[] keyData) {
    try {
        ASN1InputStream bIn = new ASN1InputStream(new ByteArrayInputStream(keyData));
        PrivateKeyInfo pki = PrivateKeyInfo.getInstance(bIn.readObject());
        String algOid = pki.getAlgorithmId().getAlgorithm().getId();
        String algName = new AlgorithmId(new ObjectIdentifier(algOid)).getName();
        return KeyChain.isBoundKeyAlgorithm(algName);
    } catch (IOException e) {
        Log.e(TAG, "Failed to parse key data");
        return false;
    }
}