secp256k1: Prepare v4.4.0.

This updates the secp256k1 module dependencies, copyright year in the
files modified since the previous release, and serves as a base for
dcrec/secp256k1/v4.4.0.

The updated direct dependencies are as follows:

- github.com/decred/dcrd/crypto/[email protected]

As compared to v4.3.0, this release includes the following notable
changes:

- Provides a new exported method on JacobianPoint named
  EquivalentNonConst for efficiently determining if two Jacobian points
  represent the same affine point without needing to convert the points
  to affine
- Provides new exported methods for obtaining the R and S components of
  Schnorr signatures
- Optimized field inversion that results in about a 9% speedup which
  translates to about 3% faster public key derivation, 1% faster Schnorr
  signature verification, and 1.5% faster public key recovery from
  compact signatures
- The DecompressY method now returns normalized values
- Faster blake256 hashing for Schnorr signing and verification
- Includes additional quality assurance tests for the new methods
- Includes benchmarks for the new methods where appropriate
- Documentation updates

Author: davecgh

dcrec/secp256k1/field_test.go

@@ -1,6 +1,6 @@
 // Copyright (c) 2013-2016 The btcsuite developers
-// Copyright (c) 2015-2022 The Decred developers
-// Copyright (c) 2013-2022 Dave Collins
+// Copyright (c) 2015-2024 The Decred developers
+// Copyright (c) 2013-2024 Dave Collins
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 

dcrec/secp256k1/go.mod

@@ -2,4 +2,4 @@ module github.com/decred/dcrd/dcrec/secp256k1/v4
 
 go 1.17
 
-require github.com/decred/dcrd/crypto/blake256 v1.0.1
+require github.com/decred/dcrd/crypto/blake256 v1.1.0

dcrec/secp256k1/go.sum

@@ -1,2 +1,2 @@
-github.com/decred/dcrd/crypto/blake256 v1.0.1 h1:7PltbUIQB7u/FfZ39+DGa/ShuMyJ5ilcvdfma9wOH6Y=
-github.com/decred/dcrd/crypto/blake256 v1.0.1/go.mod h1:2OfgNZ5wDpcsFmHmCK5gZTPcCXqlm2ArzUIkw9czNJo=
+github.com/decred/dcrd/crypto/blake256 v1.1.0 h1:zPMNGQCm0g4QTY27fOCorQW7EryeQ/U0x++OzVrdms8=
+github.com/decred/dcrd/crypto/blake256 v1.1.0/go.mod h1:2OfgNZ5wDpcsFmHmCK5gZTPcCXqlm2ArzUIkw9czNJo=

dcrec/secp256k1/modnscalar.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020-2023 The Decred developers
+// Copyright (c) 2020-2024 The Decred developers
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 

dcrec/secp256k1/modnscalar_bench_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020-2022 The Decred developers
+// Copyright (c) 2020-2024 The Decred developers
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 

dcrec/secp256k1/nonce.go

@@ -1,5 +1,5 @@
 // Copyright (c) 2013-2014 The btcsuite developers
-// Copyright (c) 2015-2020 The Decred developers
+// Copyright (c) 2015-2024 The Decred developers
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 

dcrec/secp256k1/nonce_test.go

@@ -1,5 +1,5 @@
 // Copyright (c) 2013-2016 The btcsuite developers
-// Copyright (c) 2015-2020 The Decred developers
+// Copyright (c) 2015-2024 The Decred developers
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 

dcrec/secp256k1/privkey.go

@@ -1,5 +1,5 @@
 // Copyright (c) 2013-2014 The btcsuite developers
-// Copyright (c) 2015-2023 The Decred developers
+// Copyright (c) 2015-2024 The Decred developers
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.