public static AbstractBlob CreateFromStream(ReadingContext SR)
{
// Read the magic and length (common to all blobs)
UInt32 Magic = SR.ReadUInt32();
UInt32 Length = SR.ReadUInt32();
AbstractBlob Result;
switch (Magic)
{
case CSMAGIC_CODEDIRECTORY:
Result = new CodeDirectoryBlob();
break;
case CSMAGIC_CODEDIR_SIGNATURE:
Result = new CodeDirectorySignatureBlob();
break;
case CSMAGIC_ENTITLEMENTS:
Result = new EntitlementsBlob();
break;
case CSMAGIC_REQUIREMENTS_TABLE:
Result = new RequirementsBlob();
break;
case CSMAGIC_EMBEDDED_SIGNATURE:
Result = new CodeSigningTableBlob();
break;
case CSMAGIC_REQUIREMENT:
default:
Result = new OpaqueBlob();
break;
}
Result.MyMagic = Magic;
Result.UnpackageData(SR, Length);
if (Config.bCodeSignVerbose)
{
Console.WriteLine("[Read blob with magic 0x{0:X} and length={1}]\n{2}", Magic, Length, Result.ToString());
}
return Result;
}
public static CodeDirectoryBlob Create(string ApplicationID, int SignedFileLength)
{
CodeDirectoryBlob Blob = new CodeDirectoryBlob();
Blob.Allocate(ApplicationID, SignedFileLength);
return Blob;
}
/// <summary>
/// Populates this CMS blob with the data from signing a code directory
/// </summary>
public void SignCodeDirectory(X509Certificate2 SigningCert, DateTime SigningTime, CodeDirectoryBlob CodeDirectory)
{
// Create a signer
CmsSigner Signer = new CmsSigner(SigningCert);
Signer.IncludeOption = X509IncludeOption.WholeChain;
Signer.SignerIdentifierType = SubjectIdentifierType.IssuerAndSerialNumber;
Signer.DigestAlgorithm = new Oid(CryptoConfig.MapNameToOID("SHA1"), "SHA1");
// A Pkcs9ContentType and Pkcs9MessageDigest will automatically be added, and it fails to
// compute a signature if they are added manually, so only the signing time needs to be added
Signer.SignedAttributes.Add(new Pkcs9SigningTime(SigningTime));
// Sign the data (in a detached manner, so only the digest of the CodeDirectory is
// stored in the CMS blob and not the whole CodeDirectory blob)
bool bDetached = true;
bool bSilent = true;
ContentInfo CodeDirContentInfo = new ContentInfo(CodeDirectory.GetBlobBytes());
SignedCms CMS = new SignedCms(CodeDirContentInfo, bDetached);
CMS.ComputeSignature(Signer, bSilent);
MyData = CMS.Encode();
}
public static CodeDirectoryBlob Create(string ApplicationID, string TeamID, int SignedFileLength, uint Version = cVersion2)
{
CodeDirectoryBlob Blob = new CodeDirectoryBlob();
Blob.Allocate(ApplicationID, TeamID, SignedFileLength);
return Blob;
}
