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diff --git a/src/spdk/intel-ipsec-mb/des.h b/src/spdk/intel-ipsec-mb/des.h
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+/*******************************************************************************
+  Copyright (c) 2017-2018, Intel Corporation
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice,
+        this list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in the
+        documentation and/or other materials provided with the distribution.
+      * Neither the name of Intel Corporation nor the names of its contributors
+        may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+#ifndef IMB_DES_H
+#define IMB_DES_H
+
+#include <stdint.h>
+
+/**
+ * @brief DES CBC encryption
+ *
+ * @param input source buffer with plain text
+ * @param output destination buffer for cipher text
+ * @param size number of bytes to encrypt (multiple of 8)
+ * @param ks pointer to key schedule structure
+ * @param ivec pointer to initialization vector
+ */
+void des_enc_cbc_basic(const void *input, void *output, const int size,
+                       const uint64_t *ks, const uint64_t *ivec);
+
+/**
+ * @brief DES CBC decryption
+ *
+ * @param input source buffer with cipher text
+ * @param output destination buffer for plain text
+ * @param size number of bytes to decrypt (multiple of 8)
+ * @param ks pointer to key schedule structure
+ * @param ivec pointer to initialization vector
+ */
+void des_dec_cbc_basic(const void *input, void *output, const int size,
+                       const uint64_t *ks, const uint64_t *ivec);
+
+/**
+ * @brief 3DES CBC encryption
+ *
+ * @param input source buffer with plain text
+ * @param output destination buffer for cipher text
+ * @param size number of bytes to encrypt (multiple of 8)
+ * @param ks1 pointer to key schedule 1 structure
+ * @param ks2 pointer to key schedule 2 structure
+ * @param ks3 pointer to key schedule 3 structure
+ * @param ivec pointer to initialization vector
+ */
+void des3_enc_cbc_basic(const void *input, void *output, const int size,
+                        const uint64_t *ks1, const uint64_t *ks2,
+                        const uint64_t *ks3, const uint64_t *ivec);
+
+/**
+ * @brief 3DES CBC decryption
+ *
+ * @param input source buffer with cipher text
+ * @param output destination buffer for plain text
+ * @param size number of bytes to decrypt (multiple of 8)
+ * @param ks1 pointer to key schedule 1 structure
+ * @param ks2 pointer to key schedule 2 structure
+ * @param ks3 pointer to key schedule 3 structure
+ * @param ivec pointer to initialization vector
+ */
+void des3_dec_cbc_basic(const void *input, void *output, const int size,
+                        const uint64_t *ks1, const uint64_t *ks2,
+                        const uint64_t *ks3, const uint64_t *ivec);
+
+/**
+ * @brief DOCSIS DES encryption
+ *
+ * @param input source buffer with plain text
+ * @param output destination buffer for cipher text
+ * @param size number of bytes to encrypt
+ * @param ks pointer to key schedule structure
+ * @param ivec pointer to initialization vector
+ */
+void docsis_des_enc_basic(const void *input, void *output, const int size,
+                          const uint64_t *ks, const uint64_t *ivec);
+
+/**
+ * @brief DOCSIS DES decryption
+ *
+ * @param input source buffer with cipher text
+ * @param output destination buffer for plain text
+ * @param size number of bytes to decrypt
+ * @param ks pointer to key schedule structure
+ * @param ivec pointer to initialization vector
+ */
+void docsis_des_dec_basic(const void *input, void *output, const int size,
+                          const uint64_t *ks, const uint64_t *ivec);
+
+#endif /* IMB_DES_H */