What are the limitations of end-to-end encryption in current chat messaging?

End-to-end encryption, while secure against current threats, is not quantum- secure and thus vulnerable to future quantum computing attacks. Quantum security is essential now because data is already being harvested and stored by adversaries for future decryption once quantum computers become capable of breaking current encryption algorithms.

How do quantum computers threaten smart contract execution and digital signatures?

Quantum computers can break mathematical algorithms used in digital signatures, enabling them to calculate private keys from public keys and forge digital signatures, which can compromise smart contract execution and digital signature integrity. Quantum- resistant cryptography can mitigate these threats by securing data against quantum computing attacks.

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What are encryption keys?

Q: What are encryption keys?

They are used to encrypt and decrypt data securely, and need to be protected just as much as the data they are intended to protect.

Encryption keys are crucial tools used for encoding and decoding data, ensuring its confidentiality and integrity. They are pivotal in various encryption algorithms, including one- time pads where they play a vital role. In one-time pads, keys are random strings as long as the message itself and are used only once for encryption and decryption. This method provides perfect secrecy, demonstrating the importance of encryption keys not only in standard encryption schemes but also in absolute secure communications enabled by one-time pads. Like the data they safeguard, encryption keys demand stringent protection to maintain the security of the encrypted information.

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