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AMD、Google、微软、英伟达宣布Caliptra开源信任根_我的网站

A |     更重要的是，Caliptra 完全开源，辅以配套的 RTL / 固件。

B | 它能够为 SoC 安全配置提供可验证的加密保证，并确保启动代码是可信的。    During the two-day visit, the American head of state will meet with Israel's top officials. These will include the new prime minister, Yair Lapid, alternate PM Naftali Bennett, as well as opposition leader Benjamin Netanyahu. He is also set to visit an Iron Dome missile defense base, a system developed jointly by the US and Israel.,The main focus of the US president’s upcoming trip will be a stop in Saudi Arabia, Danny Ayalon, Israel's former ambassador to the US, believes,"In the upcoming trip, the focus will be on Jeddah. Of course, the Saudis will not normalize relations with Israel but cooperation will be on the table.",Riyadh has repeatedly said that a normalization pact with Israel is not possible unless the Palestinian issue is resolved. Israel, which has just entered a transitional period ahead of the November midterm elections is not in a position to offer concessions, apart from symbolic gestures such as granting more work permits to Gazans or allowing crowds to pray at the Al Aqsa Mosque in Jerusalem.,But what Israel can offer to the Saudis, Ayalon says, is a solution to an issue that has been bothering them for years – control over the Tiran and Sanafir Islands in the Red Sea.,The two islands were under Saudi jurisdiction until 1950, when Riyadh transferred them to Egypt. Israel captured them during the Six Day War, but later returned them to Cairo as part of the 1979 bilateral peace treaty.,Egypt has been in control of the islands since then, but in 2016 President Abdel Fattah al-Sisi promised to give them back to the Saudis. However, for that to happen, he needs the consent of the Israelis, due to the terms of the 1979 agreement.,Back then, Israeli consent was not given. Now, however, it seems to be on the table, Ayalon says. He stresses that Israel may use the issue as a bargaining chip in talks on the opening of Saudi airspace for Israeli planes or on defense cooperation. The latter is crucial for Riyadh, he says, especially in light of the threat emanating from Yemen's Houthi rebels, linked to Iran.,"Of course, the Saudis will continue with their lip service to the Palestinians, but cooperation will be taking place under the radar. However, the scope of that cooperation will not be big", the former diplomat says. "There is a generation gap between the Saudi king and his son, Crown Prince Mohammed Bin Salman, and unless there is a shift, nothing will move towards the formalization of ties," he added.,Palestinian Issue,Before Biden came to power, he vowed to support the two-state solution, resume funding for the Palestinians that was halted under his predecessor, and open the American Consulate in East Jerusalem to counter balance their embassy in the western part of the disputed city.,More than a year after his inauguration, many of the issues he had promised to resolve are still up in the air.,The US Consulate hasn't been opened in East Jerusalem yet, and doubts run high as to whether it ever will. The Palestinian Liberation Organization's office in Washington that was shut under President Donald Trump is still closed. Funds that were given to the Palestinians in the past have not been fully restored.,The Palestinians have repeatedly stressed their dissatisfaction with the lack of progress on their front, and Ayalon says the arrival of Biden is aimed at calming the mood.,"There won't be any breakthrough on the Palestinian front. But Biden does want to take some credit for the economic assistance to the Palestinians, and he does want to bolster the security cooperation between Israel and the PA, sending a message to Hamas.",Iran Nuclear Deal,Although last week another round of talks between the US and Iran ended in a stalemate, Washington is still interested in pursuing that path.,If a deal is reached, the US would remove many of its sanctions from the Islamic Republic in exchange for the ability to supervise Tehran's nuclear program.,The deal taking shape is disturbing officials in Jerusalem and Riyadh, who claim that a nuclear Iran might threaten their security, allegations Tehran has repeatedly denied. Ayalon says Biden's visit will try to mitigate the damage. He will also try to "get the support of Israel for the deal". But the Jewish state is unlikely to be convinced, even under the leadership of the more liberal Yair Lapid.,Israel’s Prime Minister Claims Iran ‘Dangerously Close’ to Obtaining Nuclear Weapons12 June, 00:10 GMT,The Israeli PM is heading to Paris on Tuesday, where he will meet President Emmanuel Macron to discuss the deal with Iran and attempts by the Islamic Republic to remove its Revolutionary Guards from the list of terror organizations.,In September, he is also planning a trip to New York, where he will address the United Nations General Assembly and raise the issue of Iran once again.,"Lapid is likely to tell Biden that Israel is not bound by this agreement, if it does happen. Israel will emphasize that it will have a free hand when it comes to Iran, and that also means that it can adhere to plan B," Ayalon said, referring to a military option.,Russia's Operation in Ukraine,However, Biden is not only going to Israel for the sake of regional issues, the former diplomat claims. His visit to Israel and Saudi Arabiacomes amid raging hostilities in Ukraine, and the US head of state will try to convince the two Middle Eastern nations to stand by the side of Washington, he adds.,Although Saudi Arabia cracked under the American pressure to pump more oil, prices on crude continue to climb, shaking the economies of the US and Europe.,Israel, on its part, has also taken a lukewarm approach vis-a-vis Ukraine. Although it has publicly denounced Russian actions, absorbed thousands of Ukrainian refugees, and provided thousands more with medical and humanitarian assistance, it has not joined sanctions against Russia. And Ayalon says his country is not planning to change its course.,"President Vladimir Putin has been friendly with Israel for all these years. Plus, we have a big Russian population in this country. So I doubt Israel will join the Western sanctions against Moscow. It is simply not in our interests," he concluded.。Caliptra 旨在完全集成到 SoC / ASIC 中，以提供与当今单独的信任根解决方案相媲美的集成安全性，同时它围绕现代边缘 / 机密计算场景的需求而设计。有趣的是，Caliptra 的参考实现，使用了 RISC-V 内核。奇怪的是，虽然红（AMD）蓝（NVIDIA）都已官宣支持 Caliptra，但蓝厂（Intel）却在今日的公告中意外缺席。至于具有 Caliptra 硅信任根的目标，新规范中是这么描述的：在本质上，Caliptra Silicon RoT 的范围是刻意做到极简的，以推动规范定义的敏捷性、最大限度地提高适用性，并且推动行业对齐、一致性和更快地采用基础设备安全原语。一个定义明确的规范，可在最大限度上提升架构的可组合性，跨 CSP、产品和供应商的可重用性，以及开源的可行性。虽然增强功能、高级用例和应用程序超出了本规范的范围，但各方仍可通过硅 RoT 和社区参与的途径，加入到这一开发路线图中。Caliptra 定义了硅内部 RoT 基线的设计标准，满足测量信任根（RTM）角色。

C | 并且 Caliptra 的开源实现，推动了 RTM 和锚定硬件证明的测量机制的透明度。需要注意的是，Caliptra Silicon RoT 必须启动 SoC、测量其加载的可变代码，以及控制 SoC 中非易失性配置位的突变。最后，Caliptra Silicon RoT 使用基于独特的“每资产加密熵”的签名证明来报告这些测量结果，因而能够作为 SoC 身份的信任根。感兴趣的朋友，可移步至 OpenCompute.org 官网了解完全开放的 Caliptra 规范。至于更多技术细节，还请留意本周的 OCP（开放计算项目）活动。

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