What kind of keys does SAFE use for group-signing?

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Sorry, this will be a silly post. I just forgot the name.

What is the technique that SAFE uses where you know M of N public keys signed something, but don’t know which ones

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Multisig?

Or BLS?

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Ah yes BLS

What are the tradeoffs of BLS vs Shnorr?

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BLS signatures: better than Schnorr | by Stepan | Crypto Advance | Medium might give a few pointers

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Yip BLS aggregate keys. Unlike normal BLS keys,

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