/explore
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jonasnick.github.io | ||
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neilmadden.blog
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| | | | | Wikipedia's definition of a digital signature is: A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature on a message gives a recipient confidence that the message came from a sender known to the recipient. -Wikipedia They also have a handy diagram of the process... | |
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rot256.dev
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| | | | | This is the companion post to a tool, git-ring, that I recently released on Github. Github/Gitlab makes the public keys of its users publicly available (at github.com/USERNAME.keys and gitlab.com/USERNAME.keys), this means that these services bind the users identity to public keys via this endpoint. Git-ring "exploits" this to enable the creation of (cryptographic) proofs showing membership among a set of users (or organizations) without revealing the identity of the person generating the proof. The public keys of everyone (including the signer) is automatically downloaded from Github, while the tool finds the correct private key on the signers local computer. All this combined makes using the tool pretty easy, as shown below, where we sign a message and the... | |
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keymaterial.net
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| | | | | One weird hobby of mine is reasonable properties of cryptographic schemes that nobody promised they do or don't have. Whether that's invisible salamanders or binding through shared secrets, anything that isn't just boring IND-CCA2 or existential unforgeability is just delightful material to construct vulnerabilities with. Normally, with a signature scheme, you have the public key... | |
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consumersadvisory.com
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| | | [AI summary] Researchers demonstrate a potentially revolutionary method to break RSA encryption using small-scale quantum computers, raising urgent concerns about the future security of online privacy despite current skepticism regarding scalability. | ||
