Fix wrong pdf object type usage for the entry in Crypt DecodeParams dictionary in a PDF/A check

Autoported commit.
Original commit hash: [e0f1a33df]

Author: yulian-gaponenko

itext/itext.pdfa/itext/pdfa/checker/PdfA2Checker.cs

@@ -567,7 +567,7 @@ protected internal override void CheckPdfStream(PdfStream stream) {
                 if (filter.Equals(PdfName.Crypt)) {
                     PdfDictionary decodeParams = stream.GetAsDictionary(PdfName.DecodeParms);
                     if (decodeParams != null) {
-                        PdfString cryptFilterName = decodeParams.GetAsString(PdfName.Name);
+                        PdfName cryptFilterName = decodeParams.GetAsName(PdfName.Name);
                         if (cryptFilterName != null && !cryptFilterName.Equals(PdfName.Identity)) {
                             throw new PdfAConformanceException(PdfAConformanceException.NotIdentityCryptFilterIsNotPermitted);
                         }
@@ -585,7 +585,7 @@ protected internal override void CheckPdfStream(PdfStream stream) {
                             PdfArray decodeParams = stream.GetAsArray(PdfName.DecodeParms);
                             if (decodeParams != null && i < decodeParams.Size()) {
                                 PdfDictionary decodeParam = decodeParams.GetAsDictionary(i);
-                                PdfString cryptFilterName = decodeParam.GetAsString(PdfName.Name);
+                                PdfName cryptFilterName = decodeParam.GetAsName(PdfName.Name);
                                 if (cryptFilterName != null && !cryptFilterName.Equals(PdfName.Identity)) {
                                     throw new PdfAConformanceException(PdfAConformanceException.NotIdentityCryptFilterIsNotPermitted);
                                 }

port-hash

@@ -1 +1 @@
-279206fa18dd49a50a5d93060de59c61697e51ce
+e0f1a33df0bc5b2ac23be63c7e6ba334f5a8e859