Examples with EncryptionMaterials com.qcloud.cos.internal.crypto.EncryptionMaterials used on opensource projects

Example 1 with EncryptionMaterials

use of com.qcloud.cos.internal.crypto.EncryptionMaterials in project cos-java-sdk-v5 by tencentyun.

the class AsymmetricKeyEncryptionClientDemo method createCosClient.

static COSClient createCosClient(String region) {
    // 初始化用户身份信息(secretId, secretKey)
    COSCredentials cred = new BasicCOSCredentials("AKIDxxxxxxxxxxxxxxxxxxxxxxxxxxx", "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy");
    // 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region(region));
    // 为防止请求头部被篡改导致的数据无法解密，强烈建议只使用 https 协议发起请求
    clientConfig.setHttpProtocol(HttpProtocol.https);
    KeyPair asymKeyPair = null;
    try {
        // 加载保存在文件中的秘钥, 如果不存在，请先使用buildAndSaveAsymKeyPair生成秘钥
        // buildAndSaveAsymKeyPair();
        asymKeyPair = loadAsymKeyPair();
    } catch (Exception e) {
        throw new CosClientException(e);
    }
    // 初始化 KMS 加密材料
    EncryptionMaterials encryptionMaterials = new EncryptionMaterials(asymKeyPair);
    // 使用AES/GCM模式，并将加密信息存储在文件元信息中.
    CryptoConfiguration cryptoConf = new CryptoConfiguration(CryptoMode.AesCtrEncryption).withStorageMode(CryptoStorageMode.ObjectMetadata);
    // // 如果 kms 服务的 region 与 cos 的 region 不一致，则在加密信息里指定 kms 服务的 region
    // cryptoConf.setKmsRegion(kmsRegion);
    // // 如果需要可以为 KMS 服务的 cmk 设置对应的描述信息。
    // encryptionMaterials.addDescription("kms-region", "guangzhou");
    // 生成加密客户端EncryptionClient, COSEncryptionClient是COSClient的子类, 所有COSClient支持的接口他都支持。
    // EncryptionClient覆盖了COSClient上传下载逻辑，操作内部会执行加密操作，其他操作执行逻辑和COSClient一致
    COSEncryptionClient cosEncryptionClient = new COSEncryptionClient(new COSStaticCredentialsProvider(cred), new StaticEncryptionMaterialsProvider(encryptionMaterials), clientConfig, cryptoConf);
    return cosEncryptionClient;
}

Example 2 with EncryptionMaterials

use of com.qcloud.cos.internal.crypto.EncryptionMaterials in project cos-java-sdk-v5 by tencentyun.

the class SymmetricCOSEncryptionClientWithInstructionCryptoModeTest method initEncryptionInfo.

private static void initEncryptionInfo() throws NoSuchAlgorithmException {
    KeyGenerator symKeyGenerator = KeyGenerator.getInstance("AES");
    symKeyGenerator.init(128);
    SecretKey symKey = symKeyGenerator.generateKey();
    encryptionMaterials = new EncryptionMaterials(symKey);
    cryptoConfiguration = new CryptoConfiguration(CryptoMode.AuthenticatedEncryption).withStorageMode(CryptoStorageMode.InstructionFile);
}

Example 3 with EncryptionMaterials

use of com.qcloud.cos.internal.crypto.EncryptionMaterials in project cos-java-sdk-v5 by tencentyun.

the class SymmetricCOSEncryptionClientWithObjectMetaCryptoModeTest method initEncryptionInfo.

private static void initEncryptionInfo() throws NoSuchAlgorithmException {
    KeyGenerator symKeyGenerator = KeyGenerator.getInstance("AES");
    symKeyGenerator.init(128);
    SecretKey symKey = symKeyGenerator.generateKey();
    encryptionMaterials = new EncryptionMaterials(symKey);
    cryptoConfiguration = new CryptoConfiguration(CryptoMode.AuthenticatedEncryption).withStorageMode(CryptoStorageMode.ObjectMetadata);
}

Example 4 with EncryptionMaterials

use of com.qcloud.cos.internal.crypto.EncryptionMaterials in project cos-java-sdk-v5 by tencentyun.

the class ASymmetricCOSEncryptionClientWithObjectMetadataCryptoModeTest method initEncryptionInfo.

private static void initEncryptionInfo() throws NoSuchAlgorithmException {
    KeyPairGenerator keyGenerator = KeyPairGenerator.getInstance("RSA");
    keyGenerator.initialize(1024, new SecureRandom());
    KeyPair keyPair = keyGenerator.generateKeyPair();
    encryptionMaterials = new EncryptionMaterials(keyPair);
    cryptoConfiguration = new CryptoConfiguration(CryptoMode.AuthenticatedEncryption).withStorageMode(CryptoStorageMode.InstructionFile);
}

Example 5 with EncryptionMaterials

use of com.qcloud.cos.internal.crypto.EncryptionMaterials in project cos-java-sdk-v5 by tencentyun.

the class ASymmetricCOSEncryptionClientWithInstructionCryptoModeTest method initEncryptionInfo.

private static void initEncryptionInfo() throws NoSuchAlgorithmException {
    KeyPairGenerator keyGenerator = KeyPairGenerator.getInstance("RSA");
    keyGenerator.initialize(1024, new SecureRandom());
    KeyPair keyPair = keyGenerator.generateKeyPair();
    encryptionMaterials = new EncryptionMaterials(keyPair);
    cryptoConfiguration = new CryptoConfiguration(CryptoMode.AuthenticatedEncryption).withStorageMode(CryptoStorageMode.ObjectMetadata);
}