diff --git a/Pdf4QtLib/sources/pdfsecurityhandler.cpp b/Pdf4QtLib/sources/pdfsecurityhandler.cpp
index 267bba7..ec2abf0 100644
--- a/Pdf4QtLib/sources/pdfsecurityhandler.cpp
+++ b/Pdf4QtLib/sources/pdfsecurityhandler.cpp
@@ -273,7 +273,7 @@ PDFObject PDFSecurityHandler::encryptObject(const PDFObject& object, PDFObjectRe
     return visitor.getProcessedObject();
 }
 
-void PDFSecurityHandler::parseCryptFilters(const PDFDictionary* dictionary, PDFSecurityHandler& handler, int Length)
+void PDFSecurityHandler::parseCryptFilters(const PDFDictionary* dictionary, PDFSecurityHandler& handler, int Length, bool publicKey)
 {
     const PDFObject& cryptFilterObjects = dictionary->get("CF");
     if (cryptFilterObjects.isDictionary())
@@ -281,7 +281,7 @@ void PDFSecurityHandler::parseCryptFilters(const PDFDictionary* dictionary, PDFS
         const PDFDictionary* cryptFilters = cryptFilterObjects.getDictionary();
         for (size_t i = 0, cryptFilterCount = cryptFilters->getCount(); i < cryptFilterCount; ++i)
         {
-            handler.m_cryptFilters[cryptFilters->getKey(i).getString()] = parseCryptFilter(Length, cryptFilters->getValue(i));
+            handler.m_cryptFilters[cryptFilters->getKey(i).getString()] = parseCryptFilter(Length, cryptFilters->getValue(i), publicKey);
         }
     }
 
@@ -435,7 +435,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
 
     if (V == 4 || V == 5)
     {
-        parseCryptFilters(dictionary, *handler, Length);
+        parseCryptFilters(dictionary, *handler, Length, handler->getMode() == EncryptionMode::PublicKey);
     }
 
     switch (handler->getMode())
@@ -694,7 +694,7 @@ PDFInteger PDFSecurityHandler::parseInt(const PDFDictionary* dictionary, const c
     return intObject.getInteger();
 }
 
-CryptFilter PDFSecurityHandler::parseCryptFilter(PDFInteger length, const PDFObject& object)
+CryptFilter PDFSecurityHandler::parseCryptFilter(PDFInteger length, const PDFObject& object, bool publicKey)
 {
     if (!object.isDictionary())
     {
@@ -740,7 +740,7 @@ CryptFilter PDFSecurityHandler::parseCryptFilter(PDFInteger length, const PDFObj
         throw PDFException(PDFTranslationContext::tr("Unsupported authorization event '%1'.").arg(QString::fromLatin1(authEventName)));
     }
 
-    filter.keyLength = parseInt(cryptFilterDictionary, "Length", false, length / 8);
+    filter.keyLength = parseInt(cryptFilterDictionary, "Length", false, publicKey ? length : length / 8);
 
     // Recipients
     filter.recipients = parseRecipients(cryptFilterDictionary);
diff --git a/Pdf4QtLib/sources/pdfsecurityhandler.h b/Pdf4QtLib/sources/pdfsecurityhandler.h
index ea023c4..1c33150 100644
--- a/Pdf4QtLib/sources/pdfsecurityhandler.h
+++ b/Pdf4QtLib/sources/pdfsecurityhandler.h
@@ -206,11 +206,11 @@ protected:
     static bool parseBool(const PDFDictionary* dictionary, const char* key, bool required, bool defaultValue = true);
     static QByteArray parseName(const PDFDictionary* dictionary, const char* key, bool required, const char* defaultValue = nullptr);
     static PDFInteger parseInt(const PDFDictionary* dictionary, const char* key, bool required, PDFInteger defaultValue = -1);
-    static CryptFilter parseCryptFilter(PDFInteger length, const PDFObject& object);
+    static CryptFilter parseCryptFilter(PDFInteger length, const PDFObject& object, bool publicKey);
     static PDFSecurityHandlerPointer createSecurityHandlerInstance(const PDFDictionary* dictionary);
     static QByteArrayList parseRecipients(const PDFDictionary* dictionary);
 
-    static void parseCryptFilters(const PDFDictionary* dictionary, PDFSecurityHandler& handler, int Length);
+    static void parseCryptFilters(const PDFDictionary* dictionary, PDFSecurityHandler& handler, int Length, bool publicKey);
     static void parseDataStandardSecurityHandler(const PDFDictionary* dictionary, const QByteArray& id, int Length, PDFStandardSecurityHandler& handler);
 
     /// Fills encryption dictionary with basic data
diff --git a/RELEASES.txt b/RELEASES.txt
index 9cb5acf..371708a 100644
--- a/RELEASES.txt
+++ b/RELEASES.txt
@@ -1,6 +1,6 @@
 CURRENT:
 
-V: 1.2.0
+V: 1.2.0 5.6.2022
  - Issue #10: Performance optimization
  - Issue #14: Incorrect text drawing for vertical writing systems
  - Issue #15: .msi installer