加密示例

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// 初始化配置参数
ObsConfig config = new ObsConfig();
config.Endpoint = "https://your-endpoint";
// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。
// 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// 创建ObsClient实例
ObsClient client = new ObsClient(accessKey, secretKey, config);
// 生成一个加密密钥
System.Security.Cryptography.Aes aesEncryption = System.Security.Cryptography.Aes.Create();
aesEncryption.KeySize = 256;
aesEncryption.GenerateKey();
string customerkey = Convert.ToBase64String(aesEncryption.Key);
// 请根据实际情况配置本地待加密上传的文件
string filePathKms = "D:\\test\\testSseC.zip";
string filePathSseC = "D:\\test\\testSseC.zip";
// 上传对象
try
{
    // 上传时以SSE-KMS算法加密对象
    SseKmsHeader kms = new SseKmsHeader();
    kms.Algorithm = SseKmsAlgorithmEnum.Kms;
    PutObjectRequest request1 = new PutObjectRequest
    {
        BucketName = "bucketname",
        ObjectKey = "objectname1",
        FilePath = filePathKms,
        SseHeader = kms,
    };
    client.PutObject(request1);
    // 上传时以SSE-C算法加密对象
    PutObjectRequest request2 = new PutObjectRequest
    {
        BucketName = "bucketname",
        ObjectKey = "objectname2",
        FilePath = filePathSseC,
        SseHeader = new SseCHeader()
        {
            Algorithm = SseCAlgorithmEnum.Aes256,
            KeyBase64 = customerkey
        }
    };
    client.PutObject(request2);
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}

// 初始化配置参数
ObsConfig config = new ObsConfig();
config.Endpoint = "https://your-endpoint";
// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。
// 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// 创建ObsClient实例
ObsClient client = new ObsClient(accessKey, secretKey, config);
// 下载对象
try
{
    // 下载时以SSE-C算法解密对象
    GetObjectRequest request = new GetObjectRequest
    {
        BucketName = "bucketname",
        ObjectKey = "objectname2",
        // 此处的密钥必须和上传对象加密时使用的密钥一致
        SseCHeader = new SseCHeader()
        {
            Algorithm = SseCAlgorithmEnum.Aes256,
            KeyBase64 = "customerkey"
        }
    };
    client.GetObject(request);
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}