UpdateMetadataWithEncryptionInstructions() static private method

Update the request's ObjectMetadata with the necessary information for decrypting the object.
static private UpdateMetadataWithEncryptionInstructions ( AmazonWebServiceRequest request, EncryptionInstructions instructions ) : void
request Amazon.Runtime.AmazonWebServiceRequest /// AmazonWebServiceRequest encrypted using the given instruction ///
instructions EncryptionInstructions /// Non-null instruction used to encrypt the data in this AmazonWebServiceRequest . ///
return void
EncryptionUtils Class Documentation
示例#1
0
        /// <summary>
        /// Updates the request where the metadata contains encryption information
        /// and the input stream contains the encrypted object contents.
        /// </summary>
        /// <param name="putObjectRequest">
        /// The request whose contents are to be encrypted.
        /// </param>
        private void GenerateEncryptedObjectRequestUsingMetadata(PutObjectRequest putObjectRequest)
        {
            // Create instruction
            EncryptionInstructions instructions = EncryptionUtils.GenerateInstructions(this.encryptionMaterials);

            EncryptionUtils.AddUnencryptedContentLengthToMetadata(putObjectRequest);

            // Encrypt the object data with the instruction
            putObjectRequest.InputStream = EncryptionUtils.EncryptRequestUsingInstruction(putObjectRequest.InputStream, instructions);

            // Update the metadata
            EncryptionUtils.UpdateMetadataWithEncryptionInstructions(putObjectRequest, instructions);
        }
示例#2
0
        /// <summary>
        /// Performs encryption for PutObject and MultiPartUpload,
        /// also adding encryption information to object metadata or
        /// instruction file
        /// </summary>
        /// <param name="request">AmazonWebServiceRequest on which encryption is performed </param>
        protected override void ProcessPreRequestHandlers(AmazonWebServiceRequest request)
        {
            base.ProcessPreRequestHandlers(request);

            var putObjectRequest = request as PutObjectRequest;

            if (putObjectRequest != null)
            {
                if (this.amazonS3CryptoConfig.StorageMode == CryptoStorageMode.InstructionFile)
                {
                    GenerateEncryptedObjectRequestUsingInstructionFile(putObjectRequest);
                }
                else
                {
                    GenerateEncryptedObjectRequestUsingMetadata(putObjectRequest);
                }
            }

            var initiateMultiPartRequest = request as InitiateMultipartUploadRequest;

            if (initiateMultiPartRequest != null)
            {
                EncryptionInstructions instructions = EncryptionUtils.GenerateInstructions(this.encryptionMaterials);

                if (this.amazonS3CryptoConfig.StorageMode == CryptoStorageMode.ObjectMetadata)
                {
                    EncryptionUtils.UpdateMetadataWithEncryptionInstructions(initiateMultiPartRequest, instructions);
                }

                initiateMultiPartRequest.EnvelopeKey = instructions.EnvelopeKey;
                initiateMultiPartRequest.IV          = instructions.InitializationVector;
            }

            var uploadPartRequest = request as UploadPartRequest;

            if (uploadPartRequest != null)
            {
                GenerateEncryptedUploadPartRequest(uploadPartRequest);
            }
        }