Release v0.1.0

vendor/github.com/btcsuite/btcwallet/internal/zero/array.go

@@ -0,0 +1,17 @@
+// Copyright (c) 2015 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package zero
+
+// Bytea32 clears the 32-byte array by filling it with the zero value.
+// This is used to explicitly clear private key material from memory.
+func Bytea32(b *[32]byte) {
+	*b = [32]byte{}
+}
+
+// Bytea64 clears the 64-byte array by filling it with the zero value.
+// This is used to explicitly clear sensitive material from memory.
+func Bytea64(b *[64]byte) {
+	*b = [64]byte{}
+}

vendor/github.com/btcsuite/btcwallet/internal/zero/doc.go

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+// Package zero contains functions to clear data from byte slices and
+// multi-precision integers.
+package zero

vendor/github.com/btcsuite/btcwallet/internal/zero/slice.go

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+// Copyright (c) 2015 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+// This file implements range-based zeroing, which as of Go 1.5 is
+// optimized using a Duff's device.
+
+package zero
+
+import "math/big"
+
+// Bytes sets all bytes in the passed slice to zero.  This is used to
+// explicitly clear private key material from memory.
+//
+// In general, prefer to use the fixed-sized zeroing functions (Bytea*)
+// when zeroing bytes as they are much more efficient than the variable
+// sized zeroing func Bytes.
+func Bytes(b []byte) {
+	for i := range b {
+		b[i] = 0
+	}
+}
+
+// BigInt sets all bytes in the passed big int to zero and then sets the
+// value to 0.  This differs from simply setting the value in that it
+// specifically clears the underlying bytes whereas simply setting the value
+// does not.  This is mostly useful to forcefully clear private keys.
+func BigInt(x *big.Int) {
+	b := x.Bits()
+	for i := range b {
+		b[i] = 0
+	}
+	x.SetInt64(0)
+}