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diff --git a/wolfssl/wolfcrypt/dsa.h b/wolfssl/wolfcrypt/dsa.h
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+/* dsa.h
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL 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.
+ *
+ * wolfSSL 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 02110-1335, USA
+ */
+
+/*!
+    \file wolfssl/wolfcrypt/dsa.h
+*/
+
+#ifndef WOLF_CRYPT_DSA_H
+#define WOLF_CRYPT_DSA_H
+
+#include <wolfssl/wolfcrypt/types.h>
+
+#ifndef NO_DSA
+
+#include <wolfssl/wolfcrypt/integer.h>
+#include <wolfssl/wolfcrypt/random.h>
+
+/* for DSA reverse compatibility */
+#define InitDsaKey wc_InitDsaKey
+#define FreeDsaKey wc_FreeDsaKey
+#define DsaSign wc_DsaSign
+#define DsaVerify wc_DsaVerify
+#define DsaPublicKeyDecode wc_DsaPublicKeyDecode
+#define DsaPrivateKeyDecode wc_DsaPrivateKeyDecode
+#define DsaKeyToDer wc_DsaKeyToDer
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+
+enum {
+    DSA_PUBLIC   = 0,
+    DSA_PRIVATE  = 1
+};
+
+enum {
+    DSA_HALF_SIZE = 20,   /* r and s size  */
+    DSA_SIG_SIZE  = 40    /* signature size */
+};
+
+/* DSA */
+typedef struct DsaKey {
+    mp_int p, q, g, y, x;
+    int   type;                               /* public or private */
+    void* heap;                               /* memory hint */
+} DsaKey;
+
+WOLFSSL_API int wc_InitDsaKey(DsaKey* key);
+WOLFSSL_API int wc_InitDsaKey_h(DsaKey* key, void* h);
+WOLFSSL_API void wc_FreeDsaKey(DsaKey* key);
+WOLFSSL_API int wc_DsaSign(const byte* digest, byte* out,
+                           DsaKey* key, WC_RNG* rng);
+WOLFSSL_API int wc_DsaVerify(const byte* digest, const byte* sig,
+                             DsaKey* key, int* answer);
+WOLFSSL_API int wc_DsaPublicKeyDecode(const byte* input, word32* inOutIdx,
+                                      DsaKey*, word32);
+WOLFSSL_API int wc_DsaPrivateKeyDecode(const byte* input, word32* inOutIdx,
+                                       DsaKey*, word32);
+WOLFSSL_API int wc_DsaKeyToDer(DsaKey* key, byte* output, word32 inLen);
+WOLFSSL_API int wc_SetDsaPublicKey(byte* output, DsaKey* key,
+                                   int outLen, int with_header);
+WOLFSSL_API int wc_DsaKeyToPublicDer(DsaKey* key, byte* output, word32 inLen);
+
+#ifdef WOLFSSL_KEY_GEN
+WOLFSSL_API int wc_MakeDsaKey(WC_RNG *rng, DsaKey *dsa);
+WOLFSSL_API int wc_MakeDsaParameters(WC_RNG *rng, int modulus_size, DsaKey *dsa);
+#endif
+
+/* raw export functions */
+WOLFSSL_API int wc_DsaImportParamsRaw(DsaKey* dsa, const char* p,
+                                      const char* q, const char* g);
+WOLFSSL_API int wc_DsaImportParamsRawCheck(DsaKey* dsa, const char* p,
+                                      const char* q, const char* g,
+                                      int trusted, WC_RNG* rng);
+WOLFSSL_API int wc_DsaExportParamsRaw(DsaKey* dsa, byte* p, word32* pSz,
+                                      byte* q, word32* qSz, byte* g,
+                                      word32* gSz);
+WOLFSSL_API int wc_DsaExportKeyRaw(DsaKey* dsa, byte* x, word32* xSz, byte* y,
+                                   word32* ySz);
+#ifdef __cplusplus
+    } /* extern "C" */
+#endif
+
+#endif /* NO_DSA */
+#endif /* WOLF_CRYPT_DSA_H */
+