49 lines
900 B
Go
49 lines
900 B
Go
package config
|
|
|
|
import "github.com/awnumar/memguard"
|
|
|
|
type LockedBuffer interface {
|
|
Bytes() []byte
|
|
Wipe()
|
|
}
|
|
|
|
func NewBuffer(size int, useMemguard bool) LockedBuffer {
|
|
if useMemguard {
|
|
return MemGuardLockedBuffer{memguard.NewBuffer(size)}
|
|
}
|
|
return MemoryLockedBuffer{make([]byte, size)}
|
|
}
|
|
|
|
func NewBufferFromBytes(bytes []byte, useMemguard bool) LockedBuffer {
|
|
if useMemguard {
|
|
return MemGuardLockedBuffer{memguard.NewBufferFromBytes(bytes)}
|
|
}
|
|
return MemoryLockedBuffer{bytes}
|
|
}
|
|
|
|
type MemGuardLockedBuffer struct {
|
|
buffer *memguard.LockedBuffer
|
|
}
|
|
|
|
func (b MemGuardLockedBuffer) Wipe() {
|
|
b.buffer.Destroy()
|
|
}
|
|
|
|
func (b MemGuardLockedBuffer) Bytes() []byte {
|
|
return b.buffer.Bytes()
|
|
}
|
|
|
|
type MemoryLockedBuffer struct {
|
|
buffer []byte
|
|
}
|
|
|
|
func (b MemoryLockedBuffer) Wipe() {
|
|
for i := range b.buffer {
|
|
b.buffer[i] = 0
|
|
}
|
|
}
|
|
|
|
func (b MemoryLockedBuffer) Bytes() []byte {
|
|
return b.buffer
|
|
}
|