From b1091c486b803347ea2ef84879e55c00939311c2 Mon Sep 17 00:00:00 2001
From: merlokk <807634+merlokk@users.noreply.github.com>
Date: Tue, 20 Nov 2018 16:25:54 +0200
Subject: [PATCH] emv_pki

---
 client/emv/emv_pki.c | 14 +++++++++++---
 client/emv/emv_pki.h |  2 ++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/client/emv/emv_pki.c b/client/emv/emv_pki.c
index 81918ecb9..be4dfa0a7 100644
--- a/client/emv/emv_pki.c
+++ b/client/emv/emv_pki.c
@@ -27,6 +27,11 @@
 #include <string.h>
 #include <stdarg.h>
 
+static bool strictExecution = true;
+void PKISetStrictExecution(bool se) {
+	strictExecution = se;
+}
+
 static const unsigned char empty_tlv_value[] = {};
 static const struct tlv empty_tlv = {.tag = 0x0, .len = 0, .value = empty_tlv_value};
 
@@ -108,9 +113,12 @@ static unsigned char *emv_pki_decode_message(const struct emv_pk *enc_pk,
 		printf("ERROR: Calculated wrong hash\n");
 		printf("decoded:    %s\n",sprint_hex(data + data_len - 1 - hash_len, hash_len));
 		printf("calculated: %s\n",sprint_hex(crypto_hash_read(ch), hash_len));
-		crypto_hash_close(ch);
-		free(data);
-		return NULL;
+		
+		if (strictExecution) {
+			crypto_hash_close(ch);
+			free(data);
+			return NULL;
+		}
 	}
 
 	crypto_hash_close(ch);
diff --git a/client/emv/emv_pki.h b/client/emv/emv_pki.h
index e37e3c7d2..6fa7b12e9 100644
--- a/client/emv/emv_pki.h
+++ b/client/emv/emv_pki.h
@@ -21,6 +21,8 @@
 
 #include <stddef.h>
 
+extern void PKISetStrictExecution(bool se);
+
 struct emv_pk *emv_pki_recover_issuer_cert(const struct emv_pk *pk, struct tlvdb *db);
 struct emv_pk *emv_pki_recover_icc_cert(const struct emv_pk *pk, struct tlvdb *db, const struct tlv *sda_tlv);
 struct emv_pk *emv_pki_recover_icc_pe_cert(const struct emv_pk *pk, struct tlvdb *db);