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v0.4.0 release

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@azuchi azuchi released this 29 Jun 04:57
· 29 commits to master since this release

This release changes the nonce derivation method to same libsecp256k1 when aux_rand is not specified.

Previously, if aux_rand argument was not specified in the sign method, SecureRandom was used by default to generate a random value each time.

In this release, if aux_rand is not specified(nil), the tagged hash of the aux_rand and the xor of the private key will not be computed, and the private key will be directly used to generate the nonce.