From b0231204600cb4275dfb328bc06f1edb7a78c024 Mon Sep 17 00:00:00 2001
From: Olaoluwa Osuntokun <laolu32@gmail.com>
Date: Wed, 18 Nov 2015 14:59:51 -0800
Subject: [PATCH] add skeleton for shachain packaged
MIME-Version: 1.0
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* Still considering if it’s better just to use a modified HD chain or
not:
  * give them child branch/sub-tree etc.
---
 wallet/shachain/hash_chain.go      | 32 ++++++++++++++++++++++++++++++
 wallet/shachain/hash_chain_test.go |  1 +
 2 files changed, 33 insertions(+)
 create mode 100644 wallet/shachain/hash_chain.go
 create mode 100644 wallet/shachain/hash_chain_test.go

diff --git a/wallet/shachain/hash_chain.go b/wallet/shachain/hash_chain.go
new file mode 100644
index 00000000..4c3a8e52
--- /dev/null
+++ b/wallet/shachain/hash_chain.go
@@ -0,0 +1,32 @@
+package wallet
+
+import "github.com/btcsuite/btcd/wire"
+
+// TODO(roasbeef): port Rusty's hash-chain stuff
+//  * or just use HD chains based off of CodeShark's proposal?
+
+// chainFragment...
+type chainFragment struct {
+	index uint64
+	hash  wire.ShaHash
+}
+
+// ShaChain...
+type ShaChain struct {
+	lastChainIndex uint64
+
+	chainFragments []chainFragment
+}
+
+// NewShaChain...
+func NewShaChain(seed wire.ShaHash) *ShaChain {
+	// TODO(roasbeef): from/to or static size?
+}
+
+// NextHash...
+func (s *ShaChain) NextHash() {
+}
+
+// GetHash...
+func (s *ShaChain) GetHash(index uint64) {
+}
diff --git a/wallet/shachain/hash_chain_test.go b/wallet/shachain/hash_chain_test.go
new file mode 100644
index 00000000..23a75073
--- /dev/null
+++ b/wallet/shachain/hash_chain_test.go
@@ -0,0 +1 @@
+package wallet