xmrswap: Remove C deps for signature tweaking and dleq

go.mod

@@ -78,12 +78,14 @@ require (
 
 require (
 	decred.org/cspp/v2 v2.2.0 // indirect
+	filippo.io/edwards25519 v1.0.0 // indirect
 	github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 // indirect
 	github.com/DataDog/zstd v1.5.2 // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/StackExchange/wmi v1.2.1 // indirect
 	github.com/VictoriaMetrics/fastcache v1.12.2 // indirect
 	github.com/aead/siphash v1.0.1 // indirect
+	github.com/athanorlabs/go-dleq v0.1.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bits-and-blooms/bitset v1.10.0 // indirect
 	github.com/btcsuite/btcwallet/wallet/txrules v1.2.1 // indirect

go.sum

@@ -43,6 +43,8 @@ decred.org/cspp/v2 v2.2.0/go.mod h1:9nO3bfvCheOPIFZw5f6sRQ42CjBFB5RKSaJ9Iq6G4MA=
 decred.org/dcrwallet/v4 v4.1.1 h1:imwPBboytp1PH6V8q7/JLTHiKgj/Scq9a3I1WmnJv0Y=
 decred.org/dcrwallet/v4 v4.1.1/go.mod h1:WxerkRcUGVreJsAI0ptCBPUujPUmWncbdYbme8Kl5r0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+filippo.io/edwards25519 v1.0.0 h1:0wAIcmJUqRdI8IJ/3eGi5/HwXZWPujYXXlkrQogz0Ek=
+filippo.io/edwards25519 v1.0.0/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=
 fyne.io/systray v1.10.1-0.20220621085403-9a2652634e93 h1:V2IC9t0Zj9Ur6qDbfhUuzVmIvXKFyxZXRJyigUvovs4=
 fyne.io/systray v1.10.1-0.20220621085403-9a2652634e93/go.mod h1:oM2AQqGJ1AMo4nNqZFYU8xYygSBZkW2hmdJ7n4yjedE=
 github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 h1:cTp8I5+VIoKjsnZuH8vjyaysT/ses3EvZeaV/1UkF2M=
@@ -100,6 +102,8 @@ github.com/ashanbrown/forbidigo v1.1.0/go.mod h1:vVW7PEdqEFqapJe95xHkTfB1+XvZXBF
 github.com/ashanbrown/forbidigo v1.2.0/go.mod h1:vVW7PEdqEFqapJe95xHkTfB1+XvZXBFg8t0sG2FIxmI=
 github.com/ashanbrown/makezero v0.0.0-20210308000810-4155955488a0/go.mod h1:oG9Dnez7/ESBqc4EdrdNlryeo7d0KcW1ftXHm7nU/UU=
 github.com/ashanbrown/makezero v0.0.0-20210520155254-b6261585ddde/go.mod h1:oG9Dnez7/ESBqc4EdrdNlryeo7d0KcW1ftXHm7nU/UU=
+github.com/athanorlabs/go-dleq v0.1.0 h1:0/llWZG8fz2uintMBKOiBC502zCsDA8nt8vxI73W9Qc=
+github.com/athanorlabs/go-dleq v0.1.0/go.mod h1:DWry6jSD7A13MKmeZA0AX3/xBeQCXDoygX99VPwL3yU=
 github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
 github.com/aws/aws-sdk-go v1.23.20/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.25.37/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=