initial commit

pkg/hash/service.go

@@ -0,0 +1,32 @@
+package hash
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+var (
+	ErrHash = errors.New("wrong hash value")
+)
+
+func Hash(ctx context.Context, payload string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(payload), bcrypt.DefaultCost)
+	if err != nil {
+		return "", ErrHash
+	}
+	return string(bytes), nil
+}
+
+func CompareHash(ctx context.Context, hash string, payload string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(payload))
+	return err == nil
+}
+
+func SHA256(ctx context.Context, payload string) string {
+	hash := sha256.Sum256([]byte(payload))
+	return hex.EncodeToString(hash[:])
+}