1 files changed, 137 insertions, 0 deletions
diff --git a/roms/ipxe/src/crypto/crypto_null.c b/roms/ipxe/src/crypto/crypto_null.c
new file mode 100644
index 00000000..ba05f726
--- /dev/null
+++ b/roms/ipxe/src/crypto/crypto_null.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * 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 any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/**
+ * @file
+ *
+ * Null crypto algorithm
+ */
+
+#include <string.h>
+#include <ipxe/crypto.h>
+
+static void digest_null_init ( void *ctx __unused ) {
+	/* Do nothing */
+}
+
+static void digest_null_update ( void *ctx __unused, const void *src __unused,
+				 size_t len __unused ) {
+	/* Do nothing */
+}
+
+static void digest_null_final ( void *ctx __unused, void *out __unused ) {
+	/* Do nothing */
+}
+
+struct digest_algorithm digest_null = {
+	.name = "null",
+	.ctxsize = 0,
+	.blocksize = 1,
+	.digestsize = 0,
+	.init = digest_null_init,
+	.update = digest_null_update,
+	.final = digest_null_final,
+};
+
+static int cipher_null_setkey ( void *ctx __unused, const void *key __unused,
+				size_t keylen __unused ) {
+	/* Do nothing */
+	return 0;
+}
+
+static void cipher_null_setiv ( void *ctx __unused,
+				const void *iv __unused ) {
+	/* Do nothing */
+}
+
+static void cipher_null_encrypt ( void *ctx __unused, const void *src,
+				  void *dst, size_t len ) {
+	memcpy ( dst, src, len );
+}
+
+static void cipher_null_decrypt ( void *ctx __unused, const void *src,
+				  void *dst, size_t len ) {
+	memcpy ( dst, src, len );
+}
+
+struct cipher_algorithm cipher_null = {
+	.name = "null",
+	.ctxsize = 0,
+	.blocksize = 1,
+	.setkey = cipher_null_setkey,
+	.setiv = cipher_null_setiv,
+	.encrypt = cipher_null_encrypt,
+	.decrypt = cipher_null_decrypt,
+};
+
+static int pubkey_null_init ( void *ctx __unused, const void *key __unused,
+			      size_t key_len __unused ) {
+	return 0;
+}
+
+static size_t pubkey_null_max_len ( void *ctx __unused ) {
+	return 0;
+}
+
+static int pubkey_null_encrypt ( void *ctx __unused,
+				 const void *plaintext __unused,
+				 size_t plaintext_len __unused,
+				 void *ciphertext __unused ) {
+	return 0;
+}
+
+static int pubkey_null_decrypt ( void *ctx __unused,
+				 const void *ciphertext __unused,
+				 size_t ciphertext_len __unused,
+				 void *plaintext __unused ) {
+	return 0;
+}
+
+static int pubkey_null_sign ( void *ctx __unused,
+			      struct digest_algorithm *digest __unused,
+			      const void *value __unused,
+			      void *signature __unused ) {
+	return 0;
+}
+
+static int pubkey_null_verify ( void *ctx __unused,
+				struct digest_algorithm *digest __unused,
+				const void *value __unused,
+				const void *signature __unused ,
+				size_t signature_len __unused ) {
+	return 0;
+}
+
+static void pubkey_null_final ( void *ctx __unused ) {
+	/* Do nothing */
+}
+
+struct pubkey_algorithm pubkey_null = {
+	.name = "null",
+	.ctxsize = 0,
+	.init = pubkey_null_init,
+	.max_len = pubkey_null_max_len,
+	.encrypt = pubkey_null_encrypt,
+	.decrypt = pubkey_null_decrypt,
+	.sign = pubkey_null_sign,
+	.verify = pubkey_null_verify,
+	.final = pubkey_null_final,
+};