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Updated links in adaptor signature doc (#2950)

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Nadav Kohen 2021-04-23 09:17:59 -05:00 committed by GitHub
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docs/crypto/adaptor-signatures.md
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@ -3,17 +3,17 @@ id: adaptor-signatures
title: Adaptor Signatures
---
Bitcoin-S now has support for an old experimental version of [ECDSA Adaptor Signatures](https://github.com/jonasnick/secp256k1/pull/14). This old version will soon be replaced by a newer version which is [being specified](https://github.com/discreetlogcontracts/dlcspecs/blob/03bf7095c2016e1ce9c9fb612920872d4456f179/ECDSA-adaptor.md) but in the meantime, bitcoin-s' version can still be used to experiment with applications of ECDSA adaptor signatures as it has a similar interface.
Bitcoin-S now has support for [ECDSA Adaptor Signatures](https://github.com/discreetlogcontracts/dlcspecs/blob/03bf7095c2016e1ce9c9fb612920872d4456f179/ECDSA-adaptor.md).
There are four relevant functions to adaptor signatures:
* `sign`
* `sign` (aka encrypt)
* This function belongs to `ECPrivateKey` and creates an adaptor signature given a message (`ByteVector`) and an adaptor point (`ECPublicKey`).
* `verify`
* Verifies an adaptor signature given the signing public key, the message and the adaptor point.
* `complete`
* `complete` (aka decrypt)
* This function belongs to `ECPrivateKey` and computes a valid ECDSA signature given a valid adaptor signature whose adaptor point is this private key's public key.
* `extract`
* `extract` (aka recover)
* This function belongs to `ECPublicKey` and computes the adaptor secret (private key to this public key) given a valid adaptor signature for this adaptor point, and the valid ECDSA signature computed using `complete`.
The following code shows each function to do with adaptor signature usage: