From 938bd7bbf0f617d44ed9659addca3a4879948551 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Wed, 27 Jan 2021 20:43:40 +0100
Subject: fix: allocation of object' variable

---
 include/sha256.h | 2 ++
 src/sha256.cc    | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/include/sha256.h b/include/sha256.h
index 18fba6a..c02eb40 100644
--- a/include/sha256.h
+++ b/include/sha256.h
@@ -18,6 +18,8 @@ public:
 
     SHA256(const std::string&);
 
+    ~SHA256();
+
     // get digest as array of bytes
     uint8_t* digest();
 
diff --git a/src/sha256.cc b/src/sha256.cc
index 7790f8a..7ef467e 100644
--- a/src/sha256.cc
+++ b/src/sha256.cc
@@ -8,6 +8,7 @@ hmacsha256::SHA256::SHA256(const uint8_t* data, uint32_t length) {
 }
 
 void hmacsha256::SHA256::init(const uint8_t* data, uint32_t length) {
+    digest_ = new uint8_t[32];
     message_l_ = bit_len_ = 0;
     vars_[0] = 0x6a09e667;
     vars_[1] = 0xbb67ae85;
@@ -29,6 +30,10 @@ void hmacsha256::SHA256::init(const uint8_t* data, uint32_t length) {
     }
 }
 
+hmacsha256::SHA256::~SHA256() {
+    delete digest_;
+}
+
 hmacsha256::SHA256::SHA256(const std::string& data) {
     init(reinterpret_cast<const uint8_t*> (data.c_str()), data.size());
 }
-- 
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