Jesse Posner 6955af5ca8 ecdsa_adaptor: add ECDSA adaptor signature APIs ...

This commit adds the ECDSA adaptor signature APIs:

- Encrypted Signing

  Creates an adaptor signature, which includes a proof to verify the adaptor
  signature.

- Encryption Verification

  Verifies that the adaptor decryption key can be extracted from the adaptor
  signature and the completed ECDSA signature.

- Signature Decryption

  Derives an ECDSA signature from an adaptor signature and an adaptor decryption
  key.

- Key Recovery

  Extracts the adaptor decryption key from the complete signature and the adaptor
  signature.

2021-03-26 16:04:52 -07:00

7.3 KiB

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