1 files changed, 59 insertions, 0 deletions
diff --git a/crypto/openssl/providers/implementations/ciphers/cipher_cast5.c b/crypto/openssl/providers/implementations/ciphers/cipher_cast5.c
new file mode 100644
index 000000000000..84c88793b05e
--- /dev/null
+++ b/crypto/openssl/providers/implementations/ciphers/cipher_cast5.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * CAST low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
+/* Dispatch functions for cast cipher modes ecb, cbc, ofb, cfb */
+
+#include <openssl/proverr.h>
+#include "cipher_cast.h"
+#include "prov/implementations.h"
+#include "prov/providercommon.h"
+
+#define CAST5_FLAGS PROV_CIPHER_FLAG_VARIABLE_LENGTH
+
+static OSSL_FUNC_cipher_freectx_fn cast5_freectx;
+static OSSL_FUNC_cipher_dupctx_fn cast5_dupctx;
+
+static void cast5_freectx(void *vctx)
+{
+    PROV_CAST_CTX *ctx = (PROV_CAST_CTX *)vctx;
+
+    ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
+    OPENSSL_clear_free(ctx,  sizeof(*ctx));
+}
+
+static void *cast5_dupctx(void *ctx)
+{
+    PROV_CAST_CTX *in = (PROV_CAST_CTX *)ctx;
+    PROV_CAST_CTX *ret;
+
+    if (!ossl_prov_is_running())
+        return NULL;
+
+    ret = OPENSSL_malloc(sizeof(*ret));
+    if (ret == NULL)
+        return NULL;
+    *ret = *in;
+
+    return ret;
+}
+
+/* ossl_cast5128ecb_functions */
+IMPLEMENT_var_keylen_cipher(cast5, CAST, ecb, ECB, CAST5_FLAGS, 128, 64, 0, block)
+/* ossl_cast5128cbc_functions */
+IMPLEMENT_var_keylen_cipher(cast5, CAST, cbc, CBC, CAST5_FLAGS, 128, 64, 64, block)
+/* ossl_cast5128ofb64_functions */
+IMPLEMENT_var_keylen_cipher(cast5, CAST, ofb64, OFB, CAST5_FLAGS, 128, 8, 64, stream)
+/* ossl_cast5128cfb64_functions */
+IMPLEMENT_var_keylen_cipher(cast5, CAST, cfb64,  CFB, CAST5_FLAGS, 128, 8, 64, stream)