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diff --git a/wolfssl/wolfcrypt/rsa.h b/wolfssl/wolfcrypt/rsa.h
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+/* rsa.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/rsa.h
+*/
+
+
+#ifndef WOLF_CRYPT_RSA_H
+#define WOLF_CRYPT_RSA_H
+
+#include <wolfssl/wolfcrypt/types.h>
+
+#ifndef NO_RSA
+
+
+/* RSA default exponent */
+#ifndef WC_RSA_EXPONENT
+    #define WC_RSA_EXPONENT 65537L
+#endif
+
+#if defined(WC_RSA_NONBLOCK)
+    /* enable support for fast math based non-blocking exptmod */
+    /* this splits the RSA function into many smaller operations */
+    #ifndef USE_FAST_MATH
+        #error RSA non-blocking mode only supported using fast math
+    #endif
+    #ifndef TFM_TIMING_RESISTANT
+      #error RSA non-blocking mode only supported with timing resistance enabled
+    #endif
+
+    /* RSA bounds check is not supported with RSA non-blocking mode */
+    #undef  NO_RSA_BOUNDS_CHECK
+    #define NO_RSA_BOUNDS_CHECK
+#endif
+
+/* allow for user to plug in own crypto */
+#if !defined(HAVE_FIPS) && (defined(HAVE_USER_RSA) || defined(HAVE_FAST_RSA))
+    #include "user_rsa.h"
+#else
+
+#if defined(HAVE_FIPS) && \
+	(!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))
+/* for fips @wc_fips */
+#include <cyassl/ctaocrypt/rsa.h>
+#if defined(CYASSL_KEY_GEN) && !defined(WOLFSSL_KEY_GEN)
+    #define WOLFSSL_KEY_GEN
+#endif
+#else
+    #include <wolfssl/wolfcrypt/integer.h>
+    #include <wolfssl/wolfcrypt/random.h>
+#endif /* HAVE_FIPS && HAVE_FIPS_VERION 1 */
+#if defined(HAVE_FIPS) && \
+	defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
+#include <wolfssl/wolfcrypt/fips.h>
+#endif
+
+/* header file needed for OAEP padding */
+#include <wolfssl/wolfcrypt/hash.h>
+
+#ifdef WOLFSSL_XILINX_CRYPT
+#include "xsecure_rsa.h"
+#endif
+
+#if defined(WOLFSSL_CRYPTOCELL)
+    #include <wolfssl/wolfcrypt/port/arm/cryptoCell.h>
+#endif
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+enum {
+    RSA_MIN_SIZE = 512,
+    RSA_MAX_SIZE = 4096,
+};
+
+/* avoid redefinition of structs */
+#if !defined(HAVE_FIPS) || \
+    (defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
+
+#ifdef WOLFSSL_ASYNC_CRYPT
+    #include <wolfssl/wolfcrypt/async.h>
+    #ifdef WOLFSSL_CERT_GEN
+        #include <wolfssl/wolfcrypt/asn.h>
+    #endif
+#endif
+
+enum {
+    RSA_PUBLIC   = 0,
+    RSA_PRIVATE  = 1,
+
+    RSA_TYPE_UNKNOWN    = -1,
+    RSA_PUBLIC_ENCRYPT  = 0,
+    RSA_PUBLIC_DECRYPT  = 1,
+    RSA_PRIVATE_ENCRYPT = 2,
+    RSA_PRIVATE_DECRYPT = 3,
+
+    RSA_BLOCK_TYPE_1 = 1,
+    RSA_BLOCK_TYPE_2 = 2,
+
+    RSA_MIN_PAD_SZ   = 11,     /* separator + 0 + pad value + 8 pads */
+
+    RSA_PSS_PAD_SZ = 8,
+    RSA_PSS_SALT_MAX_SZ = 62,
+
+#ifdef OPENSSL_EXTRA
+    RSA_PKCS1_PADDING_SIZE = 11,
+    RSA_PKCS1_OAEP_PADDING_SIZE = 42, /* (2 * hashlen(SHA-1)) + 2 */
+#endif
+#ifdef WC_RSA_PSS
+    RSA_PSS_PAD_TERM = 0xBC,
+#endif
+
+    RSA_PSS_SALT_LEN_DEFAULT  = -1,
+#ifdef WOLFSSL_PSS_SALT_LEN_DISCOVER
+    RSA_PSS_SALT_LEN_DISCOVER = -2,
+#endif
+
+#ifdef HAVE_PKCS11
+    RSA_MAX_ID_LEN      = 32,
+#endif
+};
+
+#ifdef WC_RSA_NONBLOCK
+typedef struct RsaNb {
+    exptModNb_t exptmod; /* non-block expt_mod */
+    mp_int tmp;
+} RsaNb;
+#endif
+
+/* RSA */
+struct RsaKey {
+    mp_int n, e;
+#ifndef WOLFSSL_RSA_PUBLIC_ONLY
+    mp_int d, p, q;
+#if defined(WOLFSSL_KEY_GEN) || defined(OPENSSL_EXTRA) || !defined(RSA_LOW_MEM)
+    mp_int dP, dQ, u;
+#endif
+#endif
+    void* heap;                               /* for user memory overrides */
+    byte* data;                               /* temp buffer for async RSA */
+    int   type;                               /* public or private */
+    int   state;
+    word32 dataLen;
+#ifdef WC_RSA_BLINDING
+    WC_RNG* rng;                              /* for PrivateDecrypt blinding */
+#endif
+#ifdef WOLF_CRYPTO_CB
+    int   devId;
+#endif
+#ifdef WOLFSSL_ASYNC_CRYPT
+    WC_ASYNC_DEV asyncDev;
+    #ifdef WOLFSSL_CERT_GEN
+        CertSignCtx certSignCtx; /* context info for cert sign (MakeSignature) */
+    #endif
+#endif /* WOLFSSL_ASYNC_CRYPT */
+#ifdef WOLFSSL_XILINX_CRYPT
+    word32 pubExp; /* to keep values in scope they are here in struct */
+    byte*  mod;
+    XSecure_Rsa xRsa;
+#endif
+#ifdef HAVE_PKCS11
+    byte id[RSA_MAX_ID_LEN];
+    int  idLen;
+#endif
+#if defined(WOLFSSL_ASYNC_CRYPT) || !defined(WOLFSSL_RSA_VERIFY_INLINE)
+    byte   dataIsAlloc;
+#endif
+#ifdef WC_RSA_NONBLOCK
+    RsaNb* nb;
+#endif
+#ifdef WOLFSSL_AFALG_XILINX_RSA
+    int alFd;
+    int rdFd;
+#endif
+#if defined(WOLFSSL_CRYPTOCELL)
+    rsa_context_t ctx;
+#endif
+};
+
+#ifndef WC_RSAKEY_TYPE_DEFINED
+    typedef struct RsaKey RsaKey;
+    #define WC_RSAKEY_TYPE_DEFINED
+#endif
+
+#endif /*HAVE_FIPS */
+
+WOLFSSL_API int  wc_InitRsaKey(RsaKey* key, void* heap);
+WOLFSSL_API int  wc_InitRsaKey_ex(RsaKey* key, void* heap, int devId);
+WOLFSSL_API int  wc_FreeRsaKey(RsaKey* key);
+#ifdef HAVE_PKCS11
+WOLFSSL_API int wc_InitRsaKey_Id(RsaKey* key, unsigned char* id, int len,
+                                 void* heap, int devId);
+#endif
+WOLFSSL_API int  wc_CheckRsaKey(RsaKey* key);
+#ifdef WOLFSSL_XILINX_CRYPT
+WOLFSSL_LOCAL int wc_InitRsaHw(RsaKey* key);
+#endif /* WOLFSSL_XILINX_CRYPT */
+
+WOLFSSL_API int  wc_RsaFunction(const byte* in, word32 inLen, byte* out,
+                           word32* outLen, int type, RsaKey* key, WC_RNG* rng);
+
+WOLFSSL_API int  wc_RsaPublicEncrypt(const byte* in, word32 inLen, byte* out,
+                                 word32 outLen, RsaKey* key, WC_RNG* rng);
+WOLFSSL_API int  wc_RsaPrivateDecryptInline(byte* in, word32 inLen, byte** out,
+                                        RsaKey* key);
+WOLFSSL_API int  wc_RsaPrivateDecrypt(const byte* in, word32 inLen, byte* out,
+                                  word32 outLen, RsaKey* key);
+WOLFSSL_API int  wc_RsaSSL_Sign(const byte* in, word32 inLen, byte* out,
+                            word32 outLen, RsaKey* key, WC_RNG* rng);
+WOLFSSL_API int  wc_RsaPSS_Sign(const byte* in, word32 inLen, byte* out,
+                                word32 outLen, enum wc_HashType hash, int mgf,
+                                RsaKey* key, WC_RNG* rng);
+WOLFSSL_API int  wc_RsaPSS_Sign_ex(const byte* in, word32 inLen, byte* out,
+                                   word32 outLen, enum wc_HashType hash,
+                                   int mgf, int saltLen, RsaKey* key,
+                                   WC_RNG* rng);
+WOLFSSL_API int  wc_RsaSSL_VerifyInline(byte* in, word32 inLen, byte** out,
+                                    RsaKey* key);
+WOLFSSL_API int  wc_RsaSSL_Verify(const byte* in, word32 inLen, byte* out,
+                              word32 outLen, RsaKey* key);
+WOLFSSL_API int  wc_RsaSSL_Verify_ex(const byte* in, word32 inLen, byte* out,
+                              word32 outLen, RsaKey* key, int pad_type);
+WOLFSSL_API int  wc_RsaPSS_VerifyInline(byte* in, word32 inLen, byte** out,
+                                        enum wc_HashType hash, int mgf,
+                                        RsaKey* key);
+WOLFSSL_API int  wc_RsaPSS_VerifyInline_ex(byte* in, word32 inLen, byte** out,
+                                           enum wc_HashType hash, int mgf,
+                                           int saltLen, RsaKey* key);
+WOLFSSL_API int  wc_RsaPSS_Verify(byte* in, word32 inLen, byte* out,
+                                  word32 outLen, enum wc_HashType hash, int mgf,
+                                  RsaKey* key);
+WOLFSSL_API int  wc_RsaPSS_Verify_ex(byte* in, word32 inLen, byte* out,
+                                     word32 outLen, enum wc_HashType hash,
+                                     int mgf, int saltLen, RsaKey* key);
+WOLFSSL_API int  wc_RsaPSS_CheckPadding(const byte* in, word32 inLen, byte* sig,
+                                        word32 sigSz,
+                                        enum wc_HashType hashType);
+WOLFSSL_API int  wc_RsaPSS_CheckPadding_ex(const byte* in, word32 inLen,
+                                           byte* sig, word32 sigSz,
+                                           enum wc_HashType hashType,
+                                           int saltLen, int bits);
+WOLFSSL_API int  wc_RsaPSS_VerifyCheckInline(byte* in, word32 inLen, byte** out,
+                               const byte* digest, word32 digentLen,
+                               enum wc_HashType hash, int mgf,
+                               RsaKey* key);
+WOLFSSL_API int  wc_RsaPSS_VerifyCheck(byte* in, word32 inLen,
+                               byte* out, word32 outLen,
+                               const byte* digest, word32 digestLen,
+                               enum wc_HashType hash, int mgf,
+                               RsaKey* key);
+
+WOLFSSL_API int  wc_RsaEncryptSize(RsaKey* key);
+
+#if !defined(HAVE_FIPS) || \
+	(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
+/* to avoid asn duplicate symbols @wc_fips */
+WOLFSSL_API int  wc_RsaPrivateKeyDecode(const byte* input, word32* inOutIdx,
+                                                               RsaKey*, word32);
+WOLFSSL_API int  wc_RsaPublicKeyDecode(const byte* input, word32* inOutIdx,
+                                                               RsaKey*, word32);
+WOLFSSL_API int  wc_RsaPublicKeyDecodeRaw(const byte* n, word32 nSz,
+                                        const byte* e, word32 eSz, RsaKey* key);
+WOLFSSL_API int wc_RsaKeyToDer(RsaKey*, byte* output, word32 inLen);
+
+
+#ifdef WC_RSA_BLINDING
+    WOLFSSL_API int wc_RsaSetRNG(RsaKey* key, WC_RNG* rng);
+#endif
+#ifdef WC_RSA_NONBLOCK
+    WOLFSSL_API int wc_RsaSetNonBlock(RsaKey* key, RsaNb* nb);
+    #ifdef WC_RSA_NONBLOCK_TIME
+    WOLFSSL_API int wc_RsaSetNonBlockTime(RsaKey* key, word32 maxBlockUs,
+                                          word32 cpuMHz);
+    #endif
+#endif
+
+/*
+   choice of padding added after fips, so not available when using fips RSA
+ */
+
+/* Mask Generation Function Identifiers */
+#define WC_MGF1NONE   0
+#define WC_MGF1SHA1   26
+#define WC_MGF1SHA224 4
+#define WC_MGF1SHA256 1
+#define WC_MGF1SHA384 2
+#define WC_MGF1SHA512 3
+
+/* Padding types */
+#define WC_RSA_PKCSV15_PAD 0
+#define WC_RSA_OAEP_PAD    1
+#define WC_RSA_PSS_PAD     2
+#define WC_RSA_NO_PAD      3
+
+WOLFSSL_API int  wc_RsaPublicEncrypt_ex(const byte* in, word32 inLen, byte* out,
+                   word32 outLen, RsaKey* key, WC_RNG* rng, int type,
+                   enum wc_HashType hash, int mgf, byte* label, word32 lableSz);
+WOLFSSL_API int  wc_RsaPrivateDecrypt_ex(const byte* in, word32 inLen,
+                   byte* out, word32 outLen, RsaKey* key, int type,
+                   enum wc_HashType hash, int mgf, byte* label, word32 lableSz);
+WOLFSSL_API int  wc_RsaPrivateDecryptInline_ex(byte* in, word32 inLen,
+                      byte** out, RsaKey* key, int type, enum wc_HashType hash,
+                      int mgf, byte* label, word32 lableSz);
+#if defined(WC_RSA_DIRECT) || defined(WC_RSA_NO_PADDING)
+WOLFSSL_API int wc_RsaDirect(byte* in, word32 inLen, byte* out, word32* outSz,
+                   RsaKey* key, int type, WC_RNG* rng);
+#endif
+
+#endif /* HAVE_FIPS */
+
+WOLFSSL_API int  wc_RsaFlattenPublicKey(RsaKey*, byte*, word32*, byte*,
+                                                                       word32*);
+WOLFSSL_API int wc_RsaExportKey(RsaKey* key,
+                                byte* e, word32* eSz,
+                                byte* n, word32* nSz,
+                                byte* d, word32* dSz,
+                                byte* p, word32* pSz,
+                                byte* q, word32* qSz);
+
+WOLFSSL_API int wc_RsaKeyToPublicDer(RsaKey*, byte* output, word32 inLen);
+
+#ifdef WOLFSSL_KEY_GEN
+    WOLFSSL_API int wc_MakeRsaKey(RsaKey* key, int size, long e, WC_RNG* rng);
+    WOLFSSL_API int wc_CheckProbablePrime_ex(const byte* p, word32 pSz,
+                                          const byte* q, word32 qSz,
+                                          const byte* e, word32 eSz,
+                                          int nlen, int* isPrime, WC_RNG* rng);
+    WOLFSSL_API int wc_CheckProbablePrime(const byte* p, word32 pSz,
+                                          const byte* q, word32 qSz,
+                                          const byte* e, word32 eSz,
+                                          int nlen, int* isPrime);
+#endif
+
+WOLFSSL_LOCAL int wc_RsaPad_ex(const byte* input, word32 inputLen, byte* pkcsBlock,
+        word32 pkcsBlockLen, byte padValue, WC_RNG* rng, int padType,
+        enum wc_HashType hType, int mgf, byte* optLabel, word32 labelLen,
+        int saltLen, int bits, void* heap);
+WOLFSSL_LOCAL int wc_RsaUnPad_ex(byte* pkcsBlock, word32 pkcsBlockLen, byte** out,
+                                   byte padValue, int padType, enum wc_HashType hType,
+                                   int mgf, byte* optLabel, word32 labelLen, int saltLen,
+                                   int bits, void* heap);
+
+#endif /* HAVE_USER_RSA */
+
+#ifdef __cplusplus
+    } /* extern "C" */
+#endif
+
+#endif /* NO_RSA */
+#endif /* WOLF_CRYPT_RSA_H */
+