/// <summary>
/// Sign image document with metadata signature
/// </summary>
public static void Run()
{
Console.WriteLine("\n--------------------------------------------------------------------------------------------------------------------");
Console.WriteLine("[Example Basic Usage] # SignImageWithMetadata : Sign image document with metadata signature\n");
// The path to the documents directory.
string filePath = Constants.SAMPLE_IMAGE;
string outputFilePath = Path.Combine(Constants.OutputPath, "SignImageWithMetadata", "SignedWithMetadata.png");
using (Signature signature = new Signature(filePath))
{
// create Metadata option with predefined Metadata text
MetadataSignOptions options = new MetadataSignOptions();
// Specify different Metadata Signatures and add them to options signature collection
ushort imgsMetadataId = 41996;
// Create several Image Metadata signatures with different types
ImageMetadataSignature[] signatures = new ImageMetadataSignature[]
{
new ImageMetadataSignature(imgsMetadataId++, "Mr.Scherlock Holmes"), // String value
new ImageMetadataSignature(imgsMetadataId++, DateTime.Now), // Date Time value
new ImageMetadataSignature(imgsMetadataId++, 123456), // Integer value
new ImageMetadataSignature(imgsMetadataId++, 123.456D), // Double value
new ImageMetadataSignature(imgsMetadataId++, 123.456M), // Decimal value
new ImageMetadataSignature(imgsMetadataId++, 123.456F), // Float value
};
options.Signatures.AddRange(signatures);
// sign document to file
SignResult result = signature.Sign(outputFilePath, options);
Console.WriteLine($"\nSource document signed successfully with {result.Succeeded.Count} signature(s).\nFile saved at {outputFilePath}.");
}
}
/// <summary>
/// Sign Image document with metadata signature with customer object and encryption
/// </summary>
public static void Run()
{
Console.WriteLine("\n--------------------------------------------------------------------------------------------------------------------");
Console.WriteLine("[Example Advanced Usage] # SignImageWithCustomMetadata : Sign Image document with metadata signature with customer object and encryption\n");
// The path to the documents directory.
string filePath = Constants.SAMPLE_IMAGE;
string fileName = Path.GetFileName(filePath);
string outputFilePath = Path.Combine(Constants.OutputPath, "SignImageWithCustomMetadata", fileName);
using (Signature signature = new Signature(filePath))
{
// setup key and passphrase
string key = "1234567890";
string salt = "1234567890";
// create data encryption
IDataEncryption encryption = new SymmetricEncryption(SymmetricAlgorithmType.Rijndael, key, salt);
// setup options with text of signature
MetadataSignOptions options = new MetadataSignOptions();
// create custom object
DocumentSignatureData documentSignature = new DocumentSignatureData()
{
ID = Guid.NewGuid().ToString(),
Author = Environment.UserName,
Signed = DateTime.Now,
DataFactor = 11.22M
};
// Specify different Metadata Signatures and add them to options signature collection
ushort imgsMetadataId = 41996;
// Specify different Metadata Signatures and add them to options signature collection
// setup Author property
ImageMetadataSignature mdDocument = new ImageMetadataSignature(imgsMetadataId++, documentSignature);
// set encryption
mdDocument.DataEncryption = encryption;
// setup Author property
ImageMetadataSignature mdAuthor = new ImageMetadataSignature(imgsMetadataId++, "Mr.Scherlock Holmes");
// set encryption
mdAuthor.DataEncryption = encryption;
// setup data of document id
ImageMetadataSignature mdDocId = new ImageMetadataSignature(imgsMetadataId++, Guid.NewGuid().ToString());
// set encryption
mdDocId.DataEncryption = encryption;
// add signatures to options
options.Signatures.Add(mdDocument);
options.Signatures.Add(mdAuthor);
options.Signatures.Add(mdDocId);
// sign document to file
SignResult signResult = signature.Sign(outputFilePath, options);
Console.WriteLine($"\nSource document signed successfully with {signResult.Succeeded.Count} signature(s).\nFile saved at {outputFilePath}.");
}
}
