Properly check MSB in openssl plugin's PKCS#7 implementation

diff --git a/src/libstrongswan/plugins/openssl/openssl_pkcs7.c b/src/libstrongswan/plugins/openssl/openssl_pkcs7.c
index 663397e59637246fe12daf8ac6b222dfa01f66d5..ccc4262351cfae2762f4fed8441a06bc40c321e7 100644 (file)
--- a/src/libstrongswan/plugins/openssl/openssl_pkcs7.c
+++ b/src/libstrongswan/plugins/openssl/openssl_pkcs7.c
@@ -615,7 +615,7 @@ static bool decrypt(private_openssl_pkcs7_t *this,
                                        continue;
                                }
                                chunk = openssl_asn1_str2chunk(sn);
-                               if (chunk.len && chunk.ptr[0] | 0x80)
+                               if (chunk.len && chunk.ptr[0] & 0x80)
                                {       /* if MSB is set, append a zero to make it non-negative */
                                        chunk = chunk_cata("cc", chunk_from_thing(zero), chunk);
                                }