public override byte[] Sign(Stream data) { SHA256 sha = new SHA256CryptoServiceProvider(); String hashAlgorithm = DigestAlgorithms.SHA256; Hash = DigestAlgorithms.Digest(data, DigestAlgorithms.GetMessageDigest(hashAlgorithm)); return new byte[0]; }
public byte[] Sign(Stream data) { BasicOcspResp basicResp = (BasicOcspResp)ocspResp.GetResponseObject(); byte[] oc = basicResp.GetEncoded(); Collection <byte[]> ocspCollection = new Collection <byte[]>(); ocspCollection.Add(oc); String hashAlgorithm = "SHA256"; PdfPKCS7 sgn = new PdfPKCS7(null, chain, hashAlgorithm, false); byte[] hash = DigestAlgorithms.Digest(data, DigestAlgorithms.GetMessageDigest(hashAlgorithm)); byte[] sh = sgn.GetAuthenticatedAttributeBytes(hash, PdfSigner.CryptoStandard.CADES, ocspCollection, null); //create sha256 message digest using (SHA256 sha256 = SHA256.Create()) { sh = sha256.ComputeHash(sh); } //create hex encoded sha256 message digest String hexencodedDigest = new BigInteger(1, sh).ToString(16).ToUpper(); JObject signed = PDFSigningService.Sign(baseURL, id, hexencodedDigest, access); String sig = (String)signed.GetValue("signature"); //decode hex signature byte[] dsg = Hex.Decode(sig); //include signature on PDF sgn.SetExternalDigest(dsg, null, "RSA"); //create TimeStamp Client ITSAClient tsc = new DSSTSAClient(access); return(sgn.GetEncodedPKCS7(hash, PdfSigner.CryptoStandard.CADES, tsc, ocspCollection, null)); }
public IDigest GetMessageDigest() { return(DigestAlgorithms.GetMessageDigest(this.digestAlgorithm)); }
public IDigest GetMessageDigest() { return(DigestAlgorithms.GetMessageDigest(DEFAULTHASHALGORITHM)); }
protected C1_02_DigestBC(String password, String algorithm) { messageDigest = DigestAlgorithms.GetMessageDigest(algorithm); digest = DigestAlgorithms.Digest(new MemoryStream(Encoding.UTF8.GetBytes(password)), messageDigest); }