Imported Upstream version 5.3.1

1 files changed, 61 insertions, 0 deletions

diff --git a/src/libstrongswan/crypto/iv/iv_gen.c b/src/libstrongswan/crypto/iv/iv_gen.c
new file mode 100644
index 000000000..e18843210
--- /dev/null
+++ b/src/libstrongswan/crypto/iv/iv_gen.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2015 Martin Willi
+ * Copyright (C) 2015 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "iv_gen.h"
+#include "iv_gen_rand.h"
+#include "iv_gen_seq.h"
+
+/**
+ * See header.
+ */
+iv_gen_t* iv_gen_create_for_alg(encryption_algorithm_t alg)
+{
+	switch (alg)
+	{
+		case ENCR_DES:
+		case ENCR_3DES:
+		case ENCR_RC5:
+		case ENCR_IDEA:
+		case ENCR_CAST:
+		case ENCR_BLOWFISH:
+		case ENCR_3IDEA:
+		case ENCR_AES_CBC:
+		case ENCR_CAMELLIA_CBC:
+		case ENCR_SERPENT_CBC:
+		case ENCR_TWOFISH_CBC:
+		case ENCR_RC2_CBC:
+			return iv_gen_rand_create();
+		case ENCR_AES_CTR:
+		case ENCR_AES_CCM_ICV8:
+		case ENCR_AES_CCM_ICV12:
+		case ENCR_AES_CCM_ICV16:
+		case ENCR_AES_GCM_ICV8:
+		case ENCR_AES_GCM_ICV12:
+		case ENCR_AES_GCM_ICV16:
+		case ENCR_CAMELLIA_CTR:
+		case ENCR_CAMELLIA_CCM_ICV8:
+		case ENCR_CAMELLIA_CCM_ICV12:
+		case ENCR_CAMELLIA_CCM_ICV16:
+		case ENCR_NULL_AUTH_AES_GMAC:
+			return iv_gen_seq_create();
+		case ENCR_NULL:
+		case ENCR_UNDEFINED:
+		case ENCR_DES_ECB:
+		case ENCR_DES_IV32:
+		case ENCR_DES_IV64:
+			break;
+	}
+	return NULL;
+}