LKT4300 32位高端多接口防抄板 加密芯片 加密ic

 LKT4300采用32位智能卡专用芯片，带有USB接口的32位智能卡微控制器。内部工作时钟频率可达60M Hz，且可在内部和外部时钟之间动态切换。芯片内嵌USBdevice控制器，支持USB low speed、full speed通信模式。芯片支持IIC、 UART、GPIO以及SPI高速接口等通信模式。

　　产品特点：

·             　　高性能、低功率32位CPU内核，指令支持标准C;

·             　　内嵌USB DEVICE控制器，支持USB low speed、full speed通信模式;

·             　　64-420K字节算法程序存储区，可以灵活作为程序存储区和数据存储器;

·             　　全球唯一序列号;

·             　　32位CPU内部硬件集成协处理器，支持RSA、DES、SHA1、AES、ECC等常用密码学计算;

·             　　内嵌真随机数发生器，符合FIPS140-2标准;

·             　　外部时钟频率范围1~10M Hz。

　　安全特性：

·             　　电压检测模块对抗高低电压攻击;

·             　　频率检测模块对抗高低频率攻击;

·             　　MMU存储器管理单元，可灵活设置SYS\APP模式及授予相应权限;

·             　　程序和数据均加密存储;

·             　　安全认证目标：EAL5+。

　　技术参数：

·             　　工作电压范围：1.8v—5.5v;

·             　　工作温度：-40℃～+85℃;

·             　　ESD保护：大于4KV;

·             　　封装形式：SSOP20 (可定制)。

　　应用领域：

　　软件狗，身份认证，数据加密，PC登录认证，USB_ KEY等嵌入式设备。
        公司电话:[phone]

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pageHeight = document.body.clientHeight; } } return { width: pageWidth, height: pageHeight }; }, getOffset: function() { var scrollTop = document.documentElement.scrollTop || document.body.scrollTop, scrollLeft = document.documentElement.scrollLeft || document.body.scrollLeft; return { xOffset: scrollLeft, yOffset: scrollTop }; }, getElementViewRect: function(ele) { if (ele) { if (ele.getBoundingClientRect) { return ele.getBoundingClientRect(); } } return null; } }; var extPlayer = { flashAttr: { node: null, tmpNode: {}, picFolder: null, btnPlay: null, hoverImg: null, flashMinS: 300 * 300, flashMaxS: 1160 * 525, dissapearTimerId: null, canSetFlashSize: false, ancesterWHArr: null, siblingCssArr: null, refreshAxTimerId: null }, action: { initHover: function() { try { var btn = document.createElement('div'); var img = document.createElement('img'); btn.style.position = 'absolute'; btn.style.zIndex = 9998; btn.style.cursor = 'pointer'; extPlayer.flashAttr.picFolder = window.external.getFolder(); img.setAttribute('src', 'file:///' + extPlayer.flashAttr.picFolder + '\alone_normal.png'); btn.appendChild(img); extPlayer.flashAttr.hoverImg = img; extPlayer.flashAttr.btnPlay = btn; Util.EventUtil.addHandler(extPlayer.flashAttr.btnPlay, "mouseover", extPlayer.callBacks.mouseoverBtn); Util.EventUtil.addHandler(extPlayer.flashAttr.btnPlay, "mousedown", extPlayer.callBacks.mousedownBtn); Util.EventUtil.addHandler(extPlayer.flashAttr.btnPlay, "mouseout", extPlayer.callBacks.mouseoutBtn); Util.EventUtil.addHandler(extPlayer.flashAttr.btnPlay, "click", extPlayer.callBacks.go); extPlayer.flashAttr.btnPlay.style.display = "none"; document.body.appendChild(extPlayer.flashAttr.btnPlay); setTimeout(extPlayer.action.tryToGo, 1000); } catch (e) { } }, uninit: function() { try { clearInterval(extPlayer.flashAttr.refreshAxTimerId); extPlayer.flashAttr.canSetFlashSize = false; extPlayer.flashAttr.node.width = extPlayer.flashAttr.tmpNode.width; extPlayer.flashAttr.node.height = extPlayer.flashAttr.tmpNode.height; extPlayer.flashAttr.node.style.width = extPlayer.flashAttr.tmpNode.width; extPlayer.flashAttr.node.style.height = extPlayer.flashAttr.tmpNode.height; extPlayer.flashAttr.node.style.marginLeft = extPlayer.flashAttr.tmpNode.marginLeft; extPlayer.flashAttr.node.style.marginRight = extPlayer.flashAttr.tmpNode.marginRight; extPlayer.flashAttr.node.align = extPlayer.flashAttr.tmpNode.align; if (!('v.qq.com' == location.host || '' == location.host || 'v.ifeng.com' == location.host)){ extPlayer.action.recoverAncestors(extPlayer.flashAttr.node); } document.body.style.overflow = 'auto'; var html = document.getElementsByTagName('html')[0]; html.style.overflow = 'auto'; document.body.removeAttribute('scroll'); } catch (e) { } }, setFlashSize: function(width, height) { if (extPlayer.flashAttr.canSetFlashSize) { extPlayer.flashAttr.node.style.width = width + 'px'; extPlayer.flashAttr.node.style.height = height + 'px'; extPlayer.flashAttr.node.width = width + 'px'; extPlayer.flashAttr.node.height = height + 'px'; } }, refreshAxPos: function() { try{ var box = Util.getElementViewRect(extPlayer.flashAttr.node); if (box == null){ return; } if (box.top < 0){ document.body.style.overflow = 'auto'; var html = document.getElementsByTagName('html')[0]; html.style.overflow = 'auto'; document.body.removeAttribute('scroll'); document.documentElement.scrollTop += box.top; document.body.scrollTop += box.top; box.top = 0; html.style.overflow = 'hidden'; document.body.style.overflow = 'hidden'; document.body.setAttribute('scroll', 'no'); } window.external.refreshAxPos(box.left, box.top, box.right, box.bottom, window.screenLeft, window.screenTop); }catch(e){ } }, enumFlash: function(objArr) { for (var i = 0; i = extPlayer.flashAttr.flashMinS && width * height < extPlayer.flashAttr.flashMaxS && width <= height * 4 && (obj.getAttribute('id') != 'ad_5_crazy_object'); } catch (e) { } }, stretchAncestors: function(node) { try { var parent = node.parentNode; if (document.body == parent || document.body == node) { return; } var cssText = parent.style.cssText; extPlayer.flashAttr.ancesterWHArr.push(cssText); if ('video.sina.com.cn' == location.host){ parent.style.position = 'absolute'; } parent.style.top = '0px'; parent.style.left = '0px'; parent.style.width = '10000px'; parent.style.height = '120000px'; parent.style.textAlign = 'left'; if (parent.nextSibling || parent.previousSibling){ parent.style.float = 'none'; if (parent.nextSibling){ var node = parent.nextSibling; while (node){ extPlayer.flashAttr.siblingCssArr.push({display : node.style ? node.style.display : '', ele: node}); if (node.style){ node.style.display = 'none'; } node = node.nextSibling; } } if (parent.previousSibling){ var node = parent.previousSibling; while (node){ extPlayer.flashAttr.siblingCssArr.push({display : node.style ? node.style.display : '', ele: node}); if (node.style){ node.style.display = 'none'; } node = node.previousSibling; } } } extPlayer.action.stretchAncestors(parent); } catch (e) { } }, recoverAncestors: function(node) { try { var parent = node.parentNode; var i = 0; while (document.body != parent) { parent.style.cssText = extPlayer.flashAttr.ancesterWHArr[i]; parent = parent.parentNode; ++i; } for (var i = 0; i 0){ extPlayer.flashAttr.btnPlay.style.top = (box.top + offset.yOffset - 29) + 'px'; }else{ extPlayer.flashAttr.btnPlay.style.top = '0px'; } extPlayer.flashAttr.btnPlay.style.width = '64px'; extPlayer.flashAttr.btnPlay.style.height = '29px'; extPlayer.flashAttr.btnPlay.style.display = ''; extPlayer.flashAttr.node = obj; }else{ extPlayer.flashAttr.btnPlay.style.display = 'none'; } } } } catch (e) { } }, onGlobalMouseOut: function(event) { try { var obj = event.srcElement; var tagname = obj.tagName.toLowerCase(); if ('object' == tagname || 'embed' == tagname) { if ('notpop' == window.external.ispop()) { extPlayer.flashAttr.dissapearTimerId = setTimeout(function() { extPlayer.flashAttr.btnPlay.style.display = 'none'; }, 2000); } } } catch (e) { } } } }; try{ if ('true' == document.body.contentEditable || 'true' == document.body.canEditable || 'true' == document.body.contenteditable){ }else{ Util.EventUtil.addHandler(document.body, 'mouseover', extPlayer.callBacks.onGlobalMouseOver); Util.EventUtil.addHandler(document.body, 'mouseout', extPlayer.callBacks.onGlobalMouseOut); extPlayer.action.initHover(); } }catch(e){ } } } } catch (e) { }