Examples with EncryptionScheme com.github.zhenwei.core.asn1.pkcs.EncryptionScheme used on opensource projects

Example 1 with EncryptionScheme

use of com.github.zhenwei.core.asn1.pkcs.EncryptionScheme in project xwiki-commons by xwiki.

the class AbstractBcPBES2Cipher method getPBEParameters.

@Override
public AlgorithmIdentifier getPBEParameters() throws IOException {
    KeyDerivationFunc kdfParams;
    if (getKeyDerivationFunction() instanceof AbstractBcKDF) {
        kdfParams = ((AbstractBcKDF) getKeyDerivationFunction()).getKeyDerivationFunction();
    } else {
        kdfParams = KeyDerivationFunc.getInstance(getKeyDerivationFunction().getEncoded());
    }
    EncryptionScheme scheme = getScheme(getParameters());
    return new AlgorithmIdentifier(PKCSObjectIdentifiers.id_PBES2, new PBES2Parameters(kdfParams, scheme));
}

Example 2 with EncryptionScheme

use of com.github.zhenwei.core.asn1.pkcs.EncryptionScheme in project hedera-sdk-java by hashgraph.

the class Pem method decryptPrivateKey.

private static PrivateKeyInfo decryptPrivateKey(byte[] encodedStruct, String passphrase) throws IOException {
    var encryptedPrivateKeyInfo = EncryptedPrivateKeyInfo.getInstance(ASN1Primitive.fromByteArray(encodedStruct));
    AlgorithmIdentifier encryptAlg = encryptedPrivateKeyInfo.getEncryptionAlgorithm();
    if (!encryptAlg.getAlgorithm().equals(PKCSObjectIdentifiers.id_PBES2)) {
        throw new BadKeyException("unsupported PEM key encryption: " + encryptAlg);
    }
    PBES2Parameters params = PBES2Parameters.getInstance(encryptAlg.getParameters());
    KeyDerivationFunc kdf = params.getKeyDerivationFunc();
    EncryptionScheme encScheme = params.getEncryptionScheme();
    if (!kdf.getAlgorithm().equals(PKCSObjectIdentifiers.id_PBKDF2)) {
        throw new BadKeyException("unsupported KDF: " + kdf.getAlgorithm());
    }
    if (!encScheme.getAlgorithm().equals(NISTObjectIdentifiers.id_aes128_CBC)) {
        throw new BadKeyException("unsupported encryption: " + encScheme.getAlgorithm());
    }
    PBKDF2Params kdfParams = PBKDF2Params.getInstance(kdf.getParameters());
    if (!kdfParams.getPrf().getAlgorithm().equals(PKCSObjectIdentifiers.id_hmacWithSHA256)) {
        throw new BadKeyException("unsupported PRF: " + kdfParams.getPrf());
    }
    int keyLength = kdfParams.getKeyLength() != null ? kdfParams.getKeyLength().intValue() : Crypto.CBC_DK_LEN;
    KeyParameter derivedKey = Crypto.deriveKeySha256(passphrase, kdfParams.getSalt(), kdfParams.getIterationCount().intValue(), keyLength);
    AlgorithmParameters aesParams;
    try {
        aesParams = AlgorithmParameters.getInstance("AES");
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
    aesParams.init(encScheme.getParameters().toASN1Primitive().getEncoded());
    Cipher cipher = Crypto.initAesCbc128Decrypt(derivedKey, aesParams);
    byte[] decrypted = Crypto.runCipher(cipher, encryptedPrivateKeyInfo.getEncryptedData());
    // we need to parse our input data as the cipher may add padding
    ASN1InputStream inputStream = new ASN1InputStream(new ByteArrayInputStream(decrypted));
    return PrivateKeyInfo.getInstance(inputStream.readObject());
}

Example 3 with EncryptionScheme

use of com.github.zhenwei.core.asn1.pkcs.EncryptionScheme in project hedera-sdk-java by hashgraph.

the class Pem method writeEncryptedPrivateKey.

/*
     * For some reason, this generates PEM encodings that we ourselves can import, but OpenSSL
     * doesn't like. We decided to punt on generating encrypted PEMs for now but saving
     * the code for when we get back to it and/or any demand arises.
     */
@SuppressWarnings("unused")
static void writeEncryptedPrivateKey(PrivateKeyInfo pkInfo, Writer out, String passphrase) throws IOException {
    byte[] salt = Crypto.randomBytes(Crypto.SALT_LEN);
    KeyParameter derivedKey = Crypto.deriveKeySha256(passphrase, salt, Crypto.ITERATIONS, Crypto.CBC_DK_LEN);
    byte[] iv = Crypto.randomBytes(Crypto.IV_LEN);
    Cipher cipher = Crypto.initAesCbc128Encrypt(derivedKey, iv);
    byte[] encryptedKey = Crypto.runCipher(cipher, pkInfo.getEncoded());
    // I wanted to just do this with BC's PKCS8Generator and KcePKCSPBEOutputEncryptorBuilder
    // but it tries to init AES instance of `Cipher` with a `PBKDF2Key` and the former complains
    // So this is basically a reimplementation of that minus the excess OO
    PBES2Parameters parameters = new PBES2Parameters(new KeyDerivationFunc(PKCSObjectIdentifiers.id_PBKDF2, new PBKDF2Params(salt, Crypto.ITERATIONS, Crypto.CBC_DK_LEN, new AlgorithmIdentifier(PKCSObjectIdentifiers.id_hmacWithSHA256))), new EncryptionScheme(NISTObjectIdentifiers.id_aes128_CBC, ASN1Primitive.fromByteArray(cipher.getParameters().getEncoded())));
    EncryptedPrivateKeyInfo encryptedPrivateKeyInfo = new EncryptedPrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.id_PBES2, parameters), encryptedKey);
    PemWriter writer = new PemWriter(out);
    writer.writeObject(new PemObject(TYPE_ENCRYPTED_PRIVATE_KEY, encryptedPrivateKeyInfo.getEncoded()));
    writer.flush();
}

Example 4 with EncryptionScheme

use of com.github.zhenwei.core.asn1.pkcs.EncryptionScheme in project jruby-openssl by jruby.

the class PEMInputOutput method derivePrivateKeyPBES2.

private static PrivateKey derivePrivateKeyPBES2(EncryptedPrivateKeyInfo eIn, AlgorithmIdentifier algId, char[] password) throws GeneralSecurityException, InvalidCipherTextException {
    PBES2Parameters pbeParams = PBES2Parameters.getInstance((ASN1Sequence) algId.getParameters());
    CipherParameters cipherParams = extractPBES2CipherParams(password, pbeParams);
    EncryptionScheme scheme = pbeParams.getEncryptionScheme();
    BufferedBlockCipher cipher;
    if (scheme.getAlgorithm().equals(PKCSObjectIdentifiers.RC2_CBC)) {
        RC2CBCParameter rc2Params = RC2CBCParameter.getInstance(scheme);
        byte[] iv = rc2Params.getIV();
        CipherParameters param = new ParametersWithIV(cipherParams, iv);
        cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new RC2Engine()));
        cipher.init(false, param);
    } else {
        byte[] iv = ASN1OctetString.getInstance(scheme.getParameters()).getOctets();
        CipherParameters param = new ParametersWithIV(cipherParams, iv);
        cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()));
        cipher.init(false, param);
    }
    byte[] data = eIn.getEncryptedData();
    byte[] out = new byte[cipher.getOutputSize(data.length)];
    int len = cipher.processBytes(data, 0, data.length, out, 0);
    len += cipher.doFinal(out, len);
    byte[] pkcs8 = new byte[len];
    System.arraycopy(out, 0, pkcs8, 0, len);
    // It seems to work for both RSA and DSA.
    KeyFactory fact = SecurityHelper.getKeyFactory("RSA");
    return fact.generatePrivate(new PKCS8EncodedKeySpec(pkcs8));
}

Example 5 with EncryptionScheme

use of com.github.zhenwei.core.asn1.pkcs.EncryptionScheme in project LinLong-Java by zhenwei1108.

the class BcFKSKeyStoreSpi method engineSetKeyEntry.

public void engineSetKeyEntry(String alias, Key key, char[] password, Certificate[] chain) throws KeyStoreException {
    Date creationDate = new Date();
    Date lastEditDate = creationDate;
    ObjectData entry = (ObjectData) entries.get(alias);
    if (entry != null) {
        creationDate = extractCreationDate(entry, creationDate);
    }
    privateKeyCache.remove(alias);
    if (key instanceof PrivateKey) {
        if (chain == null) {
            throw new KeyStoreException("BCFKS KeyStore requires a certificate chain for private key storage.");
        }
        try {
            // check that the key pair and the certificate public are consistent
            // TODO: new ConsistentKeyPair(chain[0].getPublicKey(), (PrivateKey)key);
            byte[] encodedKey = key.getEncoded();
            KeyDerivationFunc pbkdAlgId = generatePkbdAlgorithmIdentifier(PKCSObjectIdentifiers.id_PBKDF2, 256 / 8);
            byte[] keyBytes = generateKey(pbkdAlgId, "PRIVATE_KEY_ENCRYPTION", ((password != null) ? password : new char[0]), 32);
            EncryptedPrivateKeyInfo keyInfo;
            if (storeEncryptionAlgorithm.equals(NISTObjectIdentifiers.id_aes256_CCM)) {
                Cipher c = createCipher("AES/CCM/NoPadding", keyBytes);
                byte[] encryptedKey = c.doFinal(encodedKey);
                AlgorithmParameters algParams = c.getParameters();
                PBES2Parameters pbeParams = new PBES2Parameters(pbkdAlgId, new EncryptionScheme(NISTObjectIdentifiers.id_aes256_CCM, CCMParameters.getInstance(algParams.getEncoded())));
                keyInfo = new EncryptedPrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.id_PBES2, pbeParams), encryptedKey);
            } else {
                Cipher c = createCipher("AESKWP", keyBytes);
                byte[] encryptedKey = c.doFinal(encodedKey);
                PBES2Parameters pbeParams = new PBES2Parameters(pbkdAlgId, new EncryptionScheme(NISTObjectIdentifiers.id_aes256_wrap_pad));
                keyInfo = new EncryptedPrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.id_PBES2, pbeParams), encryptedKey);
            }
            EncryptedPrivateKeyData keySeq = createPrivateKeySequence(keyInfo, chain);
            entries.put(alias, new ObjectData(PRIVATE_KEY, alias, creationDate, lastEditDate, keySeq.getEncoded(), null));
        } catch (Exception e) {
            throw new ExtKeyStoreException("BCFKS KeyStore exception storing private key: " + e.toString(), e);
        }
    } else if (key instanceof SecretKey) {
        if (chain != null) {
            throw new KeyStoreException("BCFKS KeyStore cannot store certificate chain with secret key.");
        }
        try {
            byte[] encodedKey = key.getEncoded();
            KeyDerivationFunc pbkdAlgId = generatePkbdAlgorithmIdentifier(PKCSObjectIdentifiers.id_PBKDF2, 256 / 8);
            byte[] keyBytes = generateKey(pbkdAlgId, "SECRET_KEY_ENCRYPTION", ((password != null) ? password : new char[0]), 32);
            String keyAlg = Strings.toUpperCase(key.getAlgorithm());
            SecretKeyData secKeyData;
            if (keyAlg.indexOf("AES") > -1) {
                secKeyData = new SecretKeyData(NISTObjectIdentifiers.aes, encodedKey);
            } else {
                ASN1ObjectIdentifier algOid = (ASN1ObjectIdentifier) oidMap.get(keyAlg);
                if (algOid != null) {
                    secKeyData = new SecretKeyData(algOid, encodedKey);
                } else {
                    algOid = (ASN1ObjectIdentifier) oidMap.get(keyAlg + "." + (encodedKey.length * 8));
                    if (algOid != null) {
                        secKeyData = new SecretKeyData(algOid, encodedKey);
                    } else {
                        throw new KeyStoreException("BCFKS KeyStore cannot recognize secret key (" + keyAlg + ") for storage.");
                    }
                }
            }
            EncryptedSecretKeyData keyData;
            if (storeEncryptionAlgorithm.equals(NISTObjectIdentifiers.id_aes256_CCM)) {
                Cipher c = createCipher("AES/CCM/NoPadding", keyBytes);
                byte[] encryptedKey = c.doFinal(secKeyData.getEncoded());
                AlgorithmParameters algParams = c.getParameters();
                PBES2Parameters pbeParams = new PBES2Parameters(pbkdAlgId, new EncryptionScheme(NISTObjectIdentifiers.id_aes256_CCM, CCMParameters.getInstance(algParams.getEncoded())));
                keyData = new EncryptedSecretKeyData(new AlgorithmIdentifier(PKCSObjectIdentifiers.id_PBES2, pbeParams), encryptedKey);
            } else {
                Cipher c = createCipher("AESKWP", keyBytes);
                byte[] encryptedKey = c.doFinal(secKeyData.getEncoded());
                PBES2Parameters pbeParams = new PBES2Parameters(pbkdAlgId, new EncryptionScheme(NISTObjectIdentifiers.id_aes256_wrap_pad));
                keyData = new EncryptedSecretKeyData(new AlgorithmIdentifier(PKCSObjectIdentifiers.id_PBES2, pbeParams), encryptedKey);
            }
            entries.put(alias, new ObjectData(SECRET_KEY, alias, creationDate, lastEditDate, keyData.getEncoded(), null));
        } catch (Exception e) {
            throw new ExtKeyStoreException("BCFKS KeyStore exception storing private key: " + e.toString(), e);
        }
    } else {
        throw new KeyStoreException("BCFKS KeyStore unable to recognize key.");
    }
    lastModifiedDate = lastEditDate;
}