1 files changed, 19 insertions, 0 deletions
diff --git a/core/types/common.go b/core/types/common.go
index 795374959..dd5dc00c8 100644
--- a/core/types/common.go
+++ b/core/types/common.go
@@ -5,3 +5,22 @@ import "math/big"
 type BlockProcessor interface {
 	Process(*Block) (*big.Int, error)
 }
+
+type Bloom [256]byte
+
+func BytesToBloom(b []byte) Bloom {
+	var bloom Bloom
+	bloom.SetBytes(b)
+	return bloom
+}
+
+func (b *Bloom) SetBytes(d []byte) {
+	if len(b) > len(d) {
+		panic("bloom bytes too big")
+	}
+
+	// reverse loop
+	for i := len(d) - 1; i >= 0; i-- {
+		b[i] = b[i]
+	}
+}