soaresdiogo

//Using Iteedee.ApkReader package

byte[] manifestData = null;
byte[] resourcesData = null;
using (ICSharpCode.SharpZipLib.Zip.ZipInputStream zip = new ICSharpCode.SharpZipLib.Zip.ZipInputStream(File.OpenRead(path)))
{
    using (var filestream = new FileStream(path, FileMode.Open, FileAccess.Read))
    {
        ICSharpCode.SharpZipLib.Zip.ZipFile zipfile = new ICSharpCode.SharpZipLib.Zip.ZipFile(filestream);
        ICSharpCode.SharpZipLib.Zip.ZipEntry item;

soaresdiogo

FileStream fs = new FileStream(@"/index-v1.json", FileMode.Open);
using (BinaryReader s = new BinaryReader(fs))
{
    byte[] bytes = new byte[50 * 1024];

    string hashBase64 = ParseToSha1(bytes);
    Debug.WriteLine("index-v1.json: " + hashBase64);
}

//Or by text

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string mapPath = HttpContext.Current.Server.MapPath("/");
string pfx = @mapPath + "/keystore.p12";
X509Certificate2 cert = new X509Certificate2(pfx, "password");
string xml = @mapPath + "/file.SF";
byte[] fileContent = System.IO.File.ReadAllBytes(xml);

ContentInfo contentInfo = new ContentInfo(fileContent);
SignedCms cms = new SignedCms(contentInfo, true);
CmsSigner signer = new CmsSigner(cert);
cms.ComputeSignature(signer);