--- ekg2-20180902/plugins/sim/simlite.c~	2018-08-01 15:34:40.000000000 +0200
+++ ekg2-20180902/plugins/sim/simlite.c	2018-09-20 20:44:14.370347788 +0200
@@ -185,7 +185,7 @@ char *sim_key_fingerprint(const char *ui
 	RSA *key = sim_key_read(uid, NULL);
 	unsigned char md_value[EVP_MAX_MD_SIZE], *buf, *newbuf;
 	char *result = NULL;
-	EVP_MD_CTX ctx;
+	EVP_MD_CTX *ctx;
 	unsigned int md_len;
 	int size, i;
 
@@ -208,10 +208,14 @@ char *sim_key_fingerprint(const char *ui
 		size = i2d_RSAPublicKey(key, &newbuf);
 	else
 		size = i2d_RSAPrivateKey(key, &newbuf);
-	
-	EVP_DigestInit(&ctx, EVP_sha1());	
-	EVP_DigestUpdate(&ctx, buf, size);
-	EVP_DigestFinal(&ctx, md_value, &md_len);
+
+	ctx = EVP_MD_CTX_create();
+	if (!ctx)
+		return NULL;
+	EVP_DigestInit(ctx, EVP_sha1());	
+	EVP_DigestUpdate(ctx, buf, size);
+	EVP_DigestFinal(ctx, md_value, &md_len);
+	EVP_MD_CTX_free(ctx);
 
 	free(buf);