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Vitalik's post details the entire technical tree behind the mainline of the confusion protocol (iO)

Vitalik Buterin published an article titled "Obfuscation: building the final boss of cryptography (Part I)", systematically outlining the entire technical tree behind the mainline of the obfuscation protocol (iO). The article points out that obfuscation technology can transform programs into "encrypted programs", allowing computations on plaintext inputs while hiding internal logic. Theoretically, it can achieve "trustless trusted third parties", and when combined with blockchain, it can build nearly trustless voting systems, auction protocols, and various other applications. However, the current iO scheme, while technically polynomial time, incurs enormous practical overhead, with expected runtimes exceeding the lifespan of the universe.The article details the construction process of lattice-based iO, covering the stacking of primitives such as fully homomorphic encryption (FHE), attribute-based encryption (ABE), obfuscated circuits, function encryption, and XiO. Vitalik stated that the field has moved from "impossible" to "provably secure" over the past decade, but there remains a significant gap to practical application. He proposed three future paths: further optimizing the existing lattice-based route, adopting bolder cryptographic assumptions to simplify constructions, or exploring entirely new assumptions that are completely different from lattices, emphasizing that if any direction succeeds, it will largely "solve cryptography", enabling any protocol describable by an ideal trusted third party to be securely implemented.

Trump signs quantum security executive order, which may promote post-quantum security research for Bitcoin

On Monday, U.S. President Trump signed two executive orders aimed at accelerating the development of U.S. quantum computing capabilities and advancing the government's transition to post-quantum cryptography. Although the executive orders did not directly mention Bitcoin, industry insiders believe this could benefit the blockchain's post-quantum security research and development.The two executive orders focus on defending against advanced cryptographic attacks and promoting cutting-edge quantum innovation. They include a clear timeline: to advance the construction of quantum sensors by September 2028 and require federal high-value assets and high-impact systems to complete the transition to post-quantum cryptography by the end of 2031. Project Eleven CEO Alex Pruden stated that this means the U.S. government will invest time and resources to achieve post-quantum security goals and may extend related requirements to the entire federal contractor system, not just limited to government agencies, thereby accelerating the implementation of post-quantum cryptographic technology.At the time of this policy announcement, the blockchain industry’s concern about quantum threats continues to rise. Organizations like the Ethereum Foundation and the Solana Foundation have begun advancing post-quantum security research and development, while the Bitcoin community is also discussing potential risks. Some publicly exposed Bitcoin addresses are believed to face the risk of private keys being derived once powerful quantum computers emerge in the future. Pruden pointed out that this executive order clearly sets the deadline for adopting post-quantum cryptography as 2031, which is more binding than the previous guidance from the U.S. government that proposed phasing out traditional cryptographic systems by 2035. For Bitcoin and the broader cryptocurrency industry, government investment in post-quantum security may accelerate the maturity of related tools, standards, and migration paths.

Ontario teachers' pension fund bets on SpaceX, with post-IPO holdings potentially soaring to $11.6 billion

According to Forbes, the Ontario Teachers' Pension Plan in Canada is expected to gain substantial returns from the SpaceX IPO. The fund invested approximately $220 million in SpaceX in 2019 when the company's valuation was around $33 billion to $36 billion.If SpaceX goes public as planned at $135 per share, with an estimated valuation of about $1.75 trillion, the shares held by the Ontario Teachers' Pension Plan would rise to approximately $11.6 billion, with potential paper gains exceeding $11 billion. As of the end of 2025, the Ontario Teachers' Pension Plan manages assets of about $279.4 billion, covering 346,000 active and retired teachers.The fund's Chief Investment Officer Gillian Brown previously stated that an IPO does not necessarily mean an exit point, and they may continue to hold shares in the future to see if SpaceX can initiate a new growth cycle after acquiring xAI. Notably, the fund had invested about $95 million in FTX in 2022 and wrote down that investment to zero after FTX's bankruptcy. However, benefiting from strong performances from projects like SpaceX, its venture capital portfolio is still expected to achieve a 30% growth by 2025.Currently, some institutions are cautious about SpaceX's valuation. Morningstar believes its fair valuation is less than half of the IPO target. Based on a $1.75 trillion valuation, Elon Musk's wealth, holding about 41% of the shares, is expected to rise further, potentially making him the world's first trillionaire.

Aave releases post-attack investigation on Kelp rsETH bridge

Regarding the attack on the Kelp rsETH LayerZero V2 bridge that occurred on April 18, Aave released a post-incident investigation on the X platform, emphasizing that the exposure was primarily due to third-party bridge infrastructure rather than the protocol itself. The attacker executed an RPC poisoning attack targeting a single validator of LayerZero, forging a cross-chain message. This led to the release of 116,500 rsETH on the Ethereum side without actual destruction on Unichain. The attacker subsequently deposited the stolen rsETH into Aave V3 (Ethereum Core and Arbitrum), borrowing approximately 82,650 WETH and 821 wstETH.The Aave Protocol Guardian and Risk Steward immediately implemented protective measures for the rsETH and WETH reserves. Currently, the WETH and rsETH markets in the affected V3 deployments are operating normally. The rsETH held by the attacker on Arbitrum has been destroyed, the LayerZero OFT adapter has been fully recharged in five batches, rsETH support has been fully restored, and Kelp has reopened the withdrawal, bridging, and claims functions for rsETH. The WETH LTV in the affected markets has been reset to pre-attack values, and Aave V3 is fully operational across all markets except for rsETH.The Arbitrum DAO has voted to authorize the transfer of frozen ETH to Aave LLC, and it is currently awaiting on-chain execution. The court is still reviewing the substantive content of the injunction, and Aave LLC will continue to comply with the injunction during the court's deliberation. Ongoing projects include: the Aave risk framework from Llama Risk, the bridging assessment framework, the release of evaluation reports for currently live assets, on-chain execution of Arbitrum DAO votes, and the court's review of the injunction.
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