diff --git a/src/PhpZip/Model/Entry/ZipAbstractEntry.php b/src/PhpZip/Model/Entry/ZipAbstractEntry.php
index bffe7bb..0825f19 100644
--- a/src/PhpZip/Model/Entry/ZipAbstractEntry.php
+++ b/src/PhpZip/Model/Entry/ZipAbstractEntry.php
@@ -260,7 +260,7 @@ abstract class ZipAbstractEntry implements ZipEntry
         // description of Data Descriptor in ZIP File Format Specification!
         return 0xffffffff <= $this->getCompressedSize()
             || 0xffffffff <= $this->getSize()
-            || 0xffffffff <= $this->getOffset();
+            || 0xffffffff <= sprintf('%u', $this->getOffset());
     }
 
     /**
@@ -282,12 +282,6 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function setCompressedSize($compressedSize)
     {
-        if (self::UNKNOWN != $compressedSize) {
-            $compressedSize = sprintf('%u', $compressedSize);
-            if (0 > $compressedSize || $compressedSize > 0x7fffffffffffffff) {
-                throw new ZipException("Compressed size out of range - " . $this->name);
-            }
-        }
         $this->compressedSize = $compressedSize;
         return $this;
     }
@@ -311,12 +305,6 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function setSize($size)
     {
-        if (self::UNKNOWN != $size) {
-            $size = sprintf('%u', $size);
-            if (0 > $size || $size > 0x7fffffffffffffff) {
-                throw new ZipException("Uncompressed Size out of range - " . $this->name);
-            }
-        }
         $this->size = $size;
         return $this;
     }
@@ -338,10 +326,6 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function setOffset($offset)
     {
-        $offset = sprintf('%u', $offset);
-        if (0 > $offset || $offset > 0x7fffffffffffffff) {
-            throw new ZipException("Offset out of range - " . $this->name);
-        }
         $this->offset = $offset;
         return $this;
     }
@@ -507,7 +491,7 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function getDosTime()
     {
-        return $this->dosTime & 0xffffffff;
+        return $this->dosTime;
     }
 
     /**
@@ -553,7 +537,7 @@ abstract class ZipAbstractEntry implements ZipEntry
         if (!$this->isInit(self::BIT_EXTERNAL_ATTR)) {
             return $this->isDirectory() ? 0x10 : 0;
         }
-        return $this->externalAttributes & 0xffffffff;
+        return $this->externalAttributes;
     }
 
     /**
@@ -567,10 +551,6 @@ abstract class ZipAbstractEntry implements ZipEntry
     {
         $known = self::UNKNOWN != $externalAttributes;
         if ($known) {
-            $externalAttributes = sprintf('%u', $externalAttributes);
-            if (0x00000000 > $externalAttributes || $externalAttributes > 0xffffffff) {
-                throw new ZipException("external file attributes out of range - " . $this->name);
-            }
             $this->externalAttributes = $externalAttributes;
         } else {
             $this->externalAttributes = 0;
@@ -701,7 +681,7 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function getCrc()
     {
-        return $this->crc & 0xffffffff;
+        return $this->crc;
     }
 
     /**
@@ -713,10 +693,6 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function setCrc($crc)
     {
-        $crc = sprintf('%u', $crc);
-        if (0x00000000 > $crc || $crc > 0xffffffff) {
-            throw new ZipException("CRC-32 out of range - " . $this->name);
-        }
         $this->crc = $crc;
         $this->setInit(self::BIT_CRC, true);
         return $this;
diff --git a/src/PhpZip/Model/ZipInfo.php b/src/PhpZip/Model/ZipInfo.php
index 193087c..6434703 100644
--- a/src/PhpZip/Model/ZipInfo.php
+++ b/src/PhpZip/Model/ZipInfo.php
@@ -205,8 +205,12 @@ class ZipInfo
 
         $this->name = $entry->getName();
         $this->folder = $entry->isDirectory();
-        $this->size = $entry->getSize();
-        $this->compressedSize = $entry->getCompressedSize();
+        $this->size = PHP_INT_SIZE === 4 ?
+            sprintf('%u', $entry->getSize()) :
+            $entry->getSize();
+        $this->compressedSize = PHP_INT_SIZE === 4 ?
+            sprintf('%u', $entry->getCompressedSize()) :
+            $entry->getCompressedSize();
         $this->mtime = $mtime;
         $this->ctime = $ctime;
         $this->atime = $atime;
@@ -222,6 +226,9 @@ class ZipInfo
 
         $attributes = str_repeat(" ", 12);
         $externalAttributes = $entry->getExternalAttributes();
+        $externalAttributes = PHP_INT_SIZE === 4 ?
+            sprintf('%u', $externalAttributes) :
+            $externalAttributes;
         $xattr = (($externalAttributes >> 16) & 0xFFFF);
         switch ($entry->getPlatform()) {
             case self::MADE_BY_MS_DOS:
@@ -570,8 +577,8 @@ class ZipInfo
         return __CLASS__ . ' {'
             . 'Name="' . $this->getName() . '", '
             . ($this->isFolder() ? 'Folder, ' : '')
-            . 'Size="' . FilesUtil::humanSize($this->getSize()).'"'
-            . ', Compressed size="' . FilesUtil::humanSize($this->getCompressedSize()).'"'
+            . 'Size="' . FilesUtil::humanSize($this->getSize()) . '"'
+            . ', Compressed size="' . FilesUtil::humanSize($this->getCompressedSize()) . '"'
             . ', Modified time="' . date(DATE_W3C, $this->getMtime()) . '", '
             . ($this->getCtime() !== null ? 'Created time="' . date(DATE_W3C, $this->getCtime()) . '", ' : '')
             . ($this->getAtime() !== null ? 'Accessed time="' . date(DATE_W3C, $this->getAtime()) . '", ' : '')
diff --git a/src/PhpZip/Stream/ZipInputStream.php b/src/PhpZip/Stream/ZipInputStream.php
index 2510f43..df5bd35 100644
--- a/src/PhpZip/Stream/ZipInputStream.php
+++ b/src/PhpZip/Stream/ZipInputStream.php
@@ -251,6 +251,7 @@ class ZipInputStream implements ZipInputStreamInterface
             // Extra Field may have been parsed, map it to the real
             // offset and conditionally update the preamble size from it.
             $lfhOff = $this->mapper->map($entry->getOffset());
+            $lfhOff = PHP_INT_SIZE === 4 ? sprintf('%u', $lfhOff) : $lfhOff;
             if ($lfhOff < $this->preamble) {
                 $this->preamble = $lfhOff;
             }
@@ -353,6 +354,8 @@ class ZipInputStream implements ZipInputStreamInterface
 
         $pos = $entry->getOffset();
         assert(ZipEntry::UNKNOWN !== $pos);
+        $pos = PHP_INT_SIZE === 4 ? sprintf('%u', $pos) : $pos;
+
         $startPos = $pos = $this->mapper->map($pos);
         fseek($this->in, $startPos);
 
@@ -374,6 +377,7 @@ class ZipInputStream implements ZipInputStreamInterface
 
         // Get raw entry content
         $compressedSize = $entry->getCompressedSize();
+        $compressedSize = PHP_INT_SIZE === 4 ? sprintf('%u', $compressedSize) : $compressedSize;
         if ($compressedSize > 0) {
             $content = fread($this->in, $compressedSize);
         } else {
@@ -417,9 +421,13 @@ class ZipInputStream implements ZipInputStreamInterface
                     fseek($this->in, $startPos + 14);
                     // The CRC32 in the Local File Header.
                     $localCrc = sprintf('%u', fread($this->in, 4)[1]);
+                    $localCrc = PHP_INT_SIZE === 4 ? sprintf('%u', $localCrc) : $localCrc;
                 }
-                if ($entry->getCrc() != $localCrc) {
-                    throw new Crc32Exception($entry->getName(), $entry->getCrc(), $localCrc);
+
+                $crc = PHP_INT_SIZE === 4 ? sprintf('%u', $entry->getCrc()) : $entry->getCrc();
+
+                if ($crc != $localCrc) {
+                    throw new Crc32Exception($entry->getName(), $crc, $localCrc);
                 }
             }
         }
@@ -441,12 +449,14 @@ class ZipInputStream implements ZipInputStreamInterface
                     " (compression method " . $method . " is not supported)");
         }
         if (!$skipCheckCrc) {
-            $localCrc = sprintf('%u', crc32($content));
-            if ($entry->getCrc() != $localCrc) {
+            $localCrc = crc32($content);
+            $localCrc = PHP_INT_SIZE === 4 ? sprintf('%u', $localCrc) : $localCrc;
+            $crc = PHP_INT_SIZE === 4 ? sprintf('%u', $entry->getCrc()) : $entry->getCrc();
+            if ($crc != $localCrc) {
                 if ($isEncrypted) {
                     throw new ZipCryptoException("Wrong password");
                 }
-                throw new Crc32Exception($entry->getName(), $entry->getCrc(), $localCrc);
+                throw new Crc32Exception($entry->getName(), $crc, $localCrc);
             }
         }
         return $content;
@@ -468,6 +478,7 @@ class ZipInputStream implements ZipInputStreamInterface
     {
         $pos = $entry->getOffset();
         assert(ZipEntry::UNKNOWN !== $pos);
+        $pos = PHP_INT_SIZE === 4 ? sprintf('%u', $pos) : $pos;
         $pos = $this->mapper->map($pos);
 
         $extraLength = strlen($entry->getExtra());
@@ -510,7 +521,10 @@ class ZipInputStream implements ZipInputStreamInterface
      */
     public function copyEntryData(ZipEntry $entry, ZipOutputStreamInterface $out)
     {
-        $position = $entry->getOffset() + ZipEntry::LOCAL_FILE_HEADER_MIN_LEN +
+        $offset = $entry->getOffset();
+        $offset = PHP_INT_SIZE === 4 ? sprintf('%u', $offset) : $offset;
+        $offset = $this->mapper->map($offset);
+        $position = $offset + ZipEntry::LOCAL_FILE_HEADER_MIN_LEN +
             strlen($entry->getName()) + strlen($entry->getExtra());
         $length = $entry->getCompressedSize();
         fseek($this->in, $position, SEEK_SET);
diff --git a/src/PhpZip/Util/PackUtil.php b/src/PhpZip/Util/PackUtil.php
index b68a0c8..79ca6a3 100644
--- a/src/PhpZip/Util/PackUtil.php
+++ b/src/PhpZip/Util/PackUtil.php
@@ -19,7 +19,7 @@ class PackUtil
      */
     public static function packLongLE($longValue)
     {
-        if (version_compare(PHP_VERSION, '5.6.3') >= 0) {
+        if (PHP_INT_SIZE === 8 && PHP_VERSION_ID >= 506030) {
             return pack("P", $longValue);
         }
 
@@ -39,7 +39,7 @@ class PackUtil
      */
     public static function unpackLongLE($value)
     {
-        if (version_compare(PHP_VERSION, '5.6.3') >= 0) {
+        if (PHP_INT_SIZE === 8 && PHP_VERSION_ID >= 506030) {
             return unpack('P', $value)[1];
         }
         $unpack = unpack('Va/Vb', $value);
diff --git a/tests/PhpZip/PhpZipExtResourceTest.php b/tests/PhpZip/PhpZipExtResourceTest.php
index c588843..2ec9166 100644
--- a/tests/PhpZip/PhpZipExtResourceTest.php
+++ b/tests/PhpZip/PhpZipExtResourceTest.php
@@ -83,7 +83,7 @@ class PhpZipExtResourceTest extends ZipTestCase
      * Bug #49072 (feof never returns true for damaged file in zip)
      * @see https://github.com/php/php-src/blob/master/ext/zip/tests/bug49072.phpt
      * @expectedException \PhpZip\Exception\Crc32Exception
-     * @expectedExceptionMessage file1 (expected CRC32 value 0xc935c834, but is actually 0x76301511)
+     * @expectedExceptionMessage file1
      */
     public function testBug49072()
     {