secp256k1: add DLEQVerify #101
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A quick port of https://github.com/BlockstreamResearch/secp256k1-zkp/blob/6152622613fdf1c5af6f31f74c427c4e9ee120ce/src/modules/ecdsa_adaptor/dleq_impl.h#L129 A DLEQ (discrete log equivalence) proof proves that the discrete log of P1 to the secp256k1 base G is the same as the discrete log of P2 to another base. This is useful to verify that a silent payment (BIP-352) output created by a signer was created correctly.
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Part of #105 |
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A quick port of
https://github.com/BlockstreamResearch/secp256k1-zkp/blob/6152622613fdf1c5af6f31f74c427c4e9ee120ce/src/modules/ecdsa_adaptor/dleq_impl.h#L129
A DLEQ (discrete log equivalence) proof proves that the discrete log of P1 to the secp256k1 base G is the same as the discrete log of P2 to another base.
This is useful to verify that a silent payment (BIP-352) output created by a signer was created correctly.