From abd8279de05e40fca48a2c95c78df72d3bdca27f Mon Sep 17 00:00:00 2001
From: Peter Tanski <peter.tanski@gmail.com>
Date: Tue, 15 Nov 2022 10:36:54 -0500
Subject: [PATCH 1/2] add EC Curve secp256k1

---
 ecdsa.go      | 5 +++++
 ecdsa_test.go | 2 ++
 go.mod        | 1 +
 go.sum        | 3 +++
 4 files changed, 11 insertions(+)

diff --git a/ecdsa.go b/ecdsa.go
index c094232..c47a70e 100644
--- a/ecdsa.go
+++ b/ecdsa.go
@@ -30,6 +30,7 @@ import (
 	"io"
 	"math/big"
 
+	"github.com/decred/dcrd/dcrec/secp256k1/v4"
 	"github.com/miekg/pkcs11"
 	"github.com/pkg/errors"
 )
@@ -84,6 +85,10 @@ var wellKnownCurves = map[string]curveInfo{
 		mustMarshal(asn1.ObjectIdentifier{1, 2, 840, 10045, 3, 1, 7}),
 		elliptic.P256(),
 	},
+	"secp256k1": {
+		mustMarshal(asn1.ObjectIdentifier{1, 3, 132, 0, 10}),
+		secp256k1.S256(),
+	},
 	"P-384": {
 		mustMarshal(asn1.ObjectIdentifier{1, 3, 132, 0, 34}),
 		elliptic.P384(),
diff --git a/ecdsa_test.go b/ecdsa_test.go
index 43407e3..e511833 100644
--- a/ecdsa_test.go
+++ b/ecdsa_test.go
@@ -35,6 +35,7 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
+	"github.com/decred/dcrd/dcrec/secp256k1/v4"
 	"github.com/stretchr/testify/require"
 )
 
@@ -43,6 +44,7 @@ var curves = []elliptic.Curve{
 	elliptic.P256(),
 	elliptic.P384(),
 	elliptic.P521(),
+	secp256k1.S256(),
 	// plus something with explicit parameters
 }
 
diff --git a/go.mod b/go.mod
index c1bf0b7..d9b63a9 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,7 @@ module github.com/ThalesIgnite/crypto11
 go 1.13
 
 require (
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.1.0 // indirect
 	github.com/miekg/pkcs11 v1.0.3-0.20190429190417-a667d056470f
 	github.com/pkg/errors v0.8.1
 	github.com/stretchr/testify v1.3.0
diff --git a/go.sum b/go.sum
index 5d5cdb7..86bbf9f 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,8 @@
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.1.0 h1:HbphB4TFFXpv7MNrT52FGrrgVXF1owhMVTHFZIlnvd4=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.1.0/go.mod h1:DZGJHZMqrU4JJqFAWUS2UO1+lbSKsdiOoYi9Zzey7Fc=
 github.com/miekg/pkcs11 v1.0.3-0.20190429190417-a667d056470f h1:eVB9ELsoq5ouItQBr5Tj334bhPJG/MX+m7rTchmzVUQ=
 github.com/miekg/pkcs11 v1.0.3-0.20190429190417-a667d056470f/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=

From dec819409601cd3b31f68eea4bf86067596dd133 Mon Sep 17 00:00:00 2001
From: Peter Tanski <peter.tanski@gmail.com>
Date: Tue, 15 Nov 2022 21:26:57 -0500
Subject: [PATCH 2/2] update package to go 1.17

---
 go.mod | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/go.mod b/go.mod
index d9b63a9..4f30843 100644
--- a/go.mod
+++ b/go.mod
@@ -1,11 +1,16 @@
 module github.com/ThalesIgnite/crypto11
 
-go 1.13
+go 1.17
 
 require (
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.1.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.1.0
 	github.com/miekg/pkcs11 v1.0.3-0.20190429190417-a667d056470f
 	github.com/pkg/errors v0.8.1
 	github.com/stretchr/testify v1.3.0
 	github.com/thales-e-security/pool v0.0.2
 )
+
+require (
+	github.com/davecgh/go-spew v1.1.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+)