Questions tagged [verifiable-random-function]

A verifiable random function is a public-key cryptosystem serving like a pseudorandom function under a secret key, with the additional characteristic that outputs are verifiable under the corresponding public key.

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What is the main difference between Unique signature and Verifiable Random Function?

The output of VRF contains two parts, the first is the output of the VRF hashing and the second is the proof of correctness. In a unique signature scheme, the signature also contains two parts which ...
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Can we use BLS as a VRF?

Intuitively, it seems that the hash of a BLS signature could be used as a VRF as well. In a nutshell, BLS-Signature is the VRF output and the verification first ...
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Signal protocol and VRFs

I have read through the Signal protocol specifications, but I am quite confused about when is the VRF output from VXEdDSA used. What is its application inside the protocol?
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Does this description of verifiable random functions seem accurate?

I've been thinking about verifiable random functions recently due to my interest in sortition (random selection of political officials). I wrote up this little paragraph below, and I'm wondering: Does ...
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Does an EC signature preserve entropy?

Assume I have a perfect source of entropy, which is unknown to me, and is used to generate a private key (also unknown to me, but usable). If I make a signature with this unknown private key on a ...
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Can Verifiable Random Functions be used to pick a random node from a pool?

Let's say that I have a decentralized system and I have a list of nodes published on a pubic log like a blockchain. I want a node A to be able to connect to another ...
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What is the difference between signatures and VRF?

For example we have asymmetric signature scheme(RSA or ECC based) and VRF(also can be RSA/ECC based), both of them can be verified using public key of the signer/hasher and also are unique for each ...
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Simple application of verifiable random function?

I have been reading a little bit about verifiable random functions (e.g.). In the literature, these are described as "pseudo-random functions that provide a non-interactively verifiable proof for the ...