--- a/rsa.c	Tue Dec 15 22:24:34 2015 +0800
+++ b/rsa.c	Tue Mar 15 22:45:43 2016 +0800
@@ -47,7 +47,7 @@
  * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
 int buf_get_rsa_pub_key(buffer* buf, dropbear_rsa_key *key) {
 
-    int ret = DROPBEAR_FAILURE;
+	int ret = DROPBEAR_FAILURE;
 	TRACE(("enter buf_get_rsa_pub_key"))
 	dropbear_assert(key != NULL);
 	m_mp_alloc_init_multi(&key->e, &key->n, NULL);
@@ -60,21 +60,21 @@
 	if (buf_getmpint(buf, key->e) == DROPBEAR_FAILURE
 	 || buf_getmpint(buf, key->n) == DROPBEAR_FAILURE) {
 		TRACE(("leave buf_get_rsa_pub_key: failure"))
-	    goto out;
+		goto out;
 	}
 
 	if (mp_count_bits(key->n) < MIN_RSA_KEYLEN) {
 		dropbear_log(LOG_WARNING, "RSA key too short");
-	    goto out;
+		goto out;
 	}
 
 	TRACE(("leave buf_get_rsa_pub_key: success"))
-    ret = DROPBEAR_SUCCESS;
+	ret = DROPBEAR_SUCCESS;
 out:
-    if (ret == DROPBEAR_FAILURE) {
-        m_free(key->e);
-        m_free(key->n);
-    }
+	if (ret == DROPBEAR_FAILURE) {
+		m_free(key->e);
+		m_free(key->n);
+	}
 	return ret;
 }
 
@@ -82,7 +82,7 @@
  * Loads a private rsa key from a buffer
  * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
 int buf_get_rsa_priv_key(buffer* buf, dropbear_rsa_key *key) {
-    int ret = DROPBEAR_FAILURE;
+	int ret = DROPBEAR_FAILURE;
 
 	TRACE(("enter buf_get_rsa_priv_key"))
 	dropbear_assert(key != NULL);
@@ -99,34 +99,34 @@
 	m_mp_alloc_init_multi(&key->d, NULL);
 	if (buf_getmpint(buf, key->d) == DROPBEAR_FAILURE) {
 		TRACE(("leave buf_get_rsa_priv_key: d: ret == DROPBEAR_FAILURE"))
-	    goto out;
+		goto out;
 	}
 
 	if (buf->pos == buf->len) {
-    	/* old Dropbear private keys didn't keep p and q, so we will ignore them*/
+		/* old Dropbear private keys didn't keep p and q, so we will ignore them*/
 	} else {
 		m_mp_alloc_init_multi(&key->p, &key->q, NULL);
 
 		if (buf_getmpint(buf, key->p) == DROPBEAR_FAILURE) {
 			TRACE(("leave buf_get_rsa_priv_key: p: ret == DROPBEAR_FAILURE"))
-		    goto out;
+			goto out;
 		}
 
 		if (buf_getmpint(buf, key->q) == DROPBEAR_FAILURE) {
 			TRACE(("leave buf_get_rsa_priv_key: q: ret == DROPBEAR_FAILURE"))
-		    goto out;
+			goto out;
 		}
 	}
 
-    ret = DROPBEAR_SUCCESS;
+	ret = DROPBEAR_SUCCESS;
 out:
-    if (ret == DROPBEAR_FAILURE) {
-        m_free(key->d);
-        m_free(key->p);
-        m_free(key->q);
-    }
+	if (ret == DROPBEAR_FAILURE) {
+		m_free(key->d);
+		m_free(key->p);
+		m_free(key->q);
+	}
 	TRACE(("leave buf_get_rsa_priv_key"))
-    return ret;
+	return ret;
 }