diff --git a/configure.ac b/configure.ac
index e307cbf45..62dc1ab0d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1826,6 +1826,11 @@ else
     then
         AM_CFLAGS="$AM_CFLAGS -DNO_ASN -DNO_CERTS -DNO_BIG_INT"
         ENABLED_ASN=no
+    else
+        if test "$ENABLED_ASN" = "nocrypt"
+        then
+            AM_CFLAGS="$AM_CFLAGS -DNO_ASN_CRYPT"
+        fi
     fi
 fi
 
diff --git a/src/internal.c b/src/internal.c
index a9fe023cd..17f5c2673 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -15414,15 +15414,6 @@ const char* wolfSSL_ERR_reason_error_string(unsigned long e)
     case NTRU_DECRYPT_ERROR:
         return "NTRU decrypt error";
 
-    case ZLIB_INIT_ERROR:
-        return "zlib init error";
-
-    case ZLIB_COMPRESS_ERROR:
-        return "zlib compress error";
-
-    case ZLIB_DECOMPRESS_ERROR:
-        return "zlib decompress error";
-
     case GETTIME_ERROR:
         return "gettimeofday() error";
 
diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index c29a25460..7e0e3d595 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -2336,7 +2336,7 @@ int wc_CheckPrivateKey(byte* key, word32 keySz, DecodedCert* der)
         return BAD_FUNC_ARG;
     }
 
-    #if !defined(NO_RSA)
+    #if !defined(NO_RSA) && !defined(NO_ASN_CRYPT)
     /* test if RSA key */
     if (der->keyOID == RSAk) {
     #ifdef WOLFSSL_SMALL_STACK
@@ -2404,9 +2404,9 @@ int wc_CheckPrivateKey(byte* key, word32 keySz, DecodedCert* der)
     #endif
     }
     else
-    #endif /* NO_RSA */
+    #endif /* !NO_RSA && !NO_ASN_CRYPT */
 
-    #if defined(HAVE_ECC) && defined(HAVE_ECC_KEY_EXPORT)
+    #if defined(HAVE_ECC) && defined(HAVE_ECC_KEY_EXPORT) && !defined(NO_ASN_CRYPT)
     if (der->keyOID == ECDSAk) {
     #ifdef WOLFSSL_SMALL_STACK
         ecc_key* key_pair = NULL;
@@ -2469,9 +2469,9 @@ int wc_CheckPrivateKey(byte* key, word32 keySz, DecodedCert* der)
     #endif
     }
     else
-    #endif /* HAVE_ECC */
+    #endif /* HAVE_ECC && HAVE_ECC_KEY_EXPORT && !NO_ASN_CRYPT */
 
-    #ifdef HAVE_ED25519
+    #if defined(HAVE_ED25519) && !defined(NO_ASN_CRYPT)
     if (der->keyOID == ED25519k) {
     #ifdef WOLFSSL_SMALL_STACK
         ed25519_key* key_pair = NULL;
@@ -2512,7 +2512,7 @@ int wc_CheckPrivateKey(byte* key, word32 keySz, DecodedCert* der)
     #endif
     }
     else
-    #endif
+    #endif /* HAVE_ED25519 && !NO_ASN_CRYPT */
     {
         ret = 0;
     }
@@ -2624,7 +2624,7 @@ int wc_GetKeyOID(byte* key, word32 keySz, const byte** curveOID, word32* oidSz,
 
     *algoID = 0;
 
-    #ifndef NO_RSA
+    #if !defined(NO_RSA) && !defined(NO_ASN_CRYPT)
     {
         RsaKey rsa;
 
@@ -2637,8 +2637,8 @@ int wc_GetKeyOID(byte* key, word32 keySz, const byte** curveOID, word32* oidSz,
         }
         wc_FreeRsaKey(&rsa);
     }
-    #endif /* NO_RSA */
-    #ifdef HAVE_ECC
+    #endif /* !NO_RSA && !NO_ASN_CRYPT */
+    #if defined(HAVE_ECC) && !defined(NO_ASN_CRYPT)
     if (*algoID == 0) {
         ecc_key ecc;
 
@@ -2659,8 +2659,8 @@ int wc_GetKeyOID(byte* key, word32 keySz, const byte** curveOID, word32* oidSz,
         }
         wc_ecc_free(&ecc);
     }
-#endif /* HAVE_ECC */
-#ifdef HAVE_ED25519
+#endif /* HAVE_ECC && !NO_ASN_CRYPT */
+#if defined(HAVE_ED25519) && !defined(NO_ASN_CRYPT)
     if (*algoID != RSAk && *algoID != ECDSAk) {
         ed25519_key ed25519;
 
@@ -2679,7 +2679,7 @@ int wc_GetKeyOID(byte* key, word32 keySz, const byte** curveOID, word32* oidSz,
             WOLFSSL_MSG("GetKeyOID wc_ed25519_init failed");
         }
     }
-#endif
+#endif /* HAVE_ED25519 && !NO_ASN_CRYPT */
 
     /* if flag is not set then is neither RSA or ECC key that could be
      * found */
@@ -5382,6 +5382,7 @@ void FreeSignatureCtx(SignatureCtx* sigCtx)
         sigCtx->plain = NULL;
     }
 #endif
+#ifndef NO_ASN_CRYPT
     if (sigCtx->key.ptr) {
         switch (sigCtx->keyOID) {
         #ifndef NO_RSA
@@ -5407,11 +5408,13 @@ void FreeSignatureCtx(SignatureCtx* sigCtx)
         } /* switch (keyOID) */
         sigCtx->key.ptr = NULL;
     }
+#endif
 
     /* reset state, we are done */
     sigCtx->state = SIG_STATE_BEGIN;
 }
 
+#ifndef NO_ASN_CRYPT
 static int HashForSignature(const byte* buf, word32 bufSz, word32 sigOID,
                             byte* digest, int* typeH, int* digestSz, int verify)
 {
@@ -5498,6 +5501,7 @@ static int HashForSignature(const byte* buf, word32 bufSz, word32 sigOID,
 
     return ret;
 }
+#endif /* !NO_ASN_CRYPT */
 
 /* Return codes: 0=Success, Negative (see error-crypt.h), ASN_SIG_CONFIRM_E */
 static int ConfirmSignature(SignatureCtx* sigCtx,
@@ -5519,6 +5523,7 @@ static int ConfirmSignature(SignatureCtx* sigCtx,
 
     WOLFSSL_ENTER("ConfirmSignature");
 
+#ifndef NO_ASN_CRYPT
     switch (sigCtx->state) {
         case SIG_STATE_BEGIN:
         {
@@ -5796,6 +5801,8 @@ static int ConfirmSignature(SignatureCtx* sigCtx,
 
 exit_cs:
 
+#endif /* !NO_ASN_CRYPT */
+
     WOLFSSL_LEAVE("ConfirmSignature", ret);
 
     if (ret != WC_PENDING_E) {
@@ -9348,7 +9355,7 @@ static word32 SetUTF8String(word32 len, byte* output)
 
 #endif /* WOLFSSL_CERT_REQ */
 
-#endif /*WOLFSSL_CERT_GEN */
+#endif /* WOLFSSL_CERT_GEN */
 
 #if defined(HAVE_ECC) && defined(HAVE_ECC_KEY_EXPORT)
 
@@ -9482,7 +9489,7 @@ int wc_EccPublicKeyToDer(ecc_key* key, byte* output, word32 inLen,
 
     return SetEccPublicKey(output, key, with_AlgCurve);
 }
-#endif /* HAVE_ECC */
+#endif /* HAVE_ECC && HAVE_ECC_KEY_EXPORT */
 
 #if defined(HAVE_ED25519) && (defined(WOLFSSL_CERT_GEN) || \
                               defined(WOLFSSL_KEY_GEN))
@@ -11769,7 +11776,7 @@ int wc_SetAuthKeyIdFromPublicKey(Cert *cert, RsaKey *rsakey, ecc_key *eckey)
 }
 
 
-#ifndef NO_FILESYSTEM
+#if !defined(NO_FILESYSTEM) && !defined(NO_ASN_CRYPT)
 
 /* Set SKID from public key file in PEM */
 int wc_SetSubjectKeyId(Cert *cert, const char* file)
@@ -11869,7 +11876,7 @@ int wc_SetSubjectKeyId(Cert *cert, const char* file)
     return ret;
 }
 
-#endif /* NO_FILESYSTEM */
+#endif /* !NO_FILESYSTEM && !NO_ASN_CRYPT */
 
 /* Set AKID from certificate contains in buffer (DER encoded) */
 int wc_SetAuthKeyIdFromCert(Cert *cert, const byte *der, int derSz)
@@ -13015,7 +13022,7 @@ int wc_EccPublicKeyDecode(const byte* input, word32* inOutIdx,
     return 0;
 }
 
-#if defined(HAVE_ECC_KEY_EXPORT)
+#if defined(HAVE_ECC_KEY_EXPORT) && !defined(NO_ASN_CRYPT)
 /* build DER formatted ECC key, include optional public key if requested,
  * return length on success, negative on error */
 static int wc_BuildEccKeyDer(ecc_key* key, byte* output, word32 inLen,
@@ -13133,7 +13140,7 @@ static int wc_BuildEccKeyDer(ecc_key* key, byte* output, word32 inLen,
     return totalSz;
 }
 
-
+#ifndef NO_ASN_CRYPT
 /* Write a Private ecc key, including public to DER format,
  * length on success else < 0 */
 int wc_EccKeyToDer(ecc_key* key, byte* output, word32 inLen)
@@ -13148,6 +13155,7 @@ int wc_EccPrivateKeyToDer(ecc_key* key, byte* output, word32 inLen)
 {
     return wc_BuildEccKeyDer(key, output, inLen, 0);
 }
+#endif /* !NO_ASN_CRYPT */
 
 /* Write only private ecc key to unencrypted PKCS#8 format.
  *
@@ -14451,6 +14459,79 @@ int ParseCRL(DecodedCRL* dcrl, const byte* buff, word32 sz, void* cm)
 
 #endif /* HAVE_CRL */
 
+
+
+#ifdef WOLFSSL_CERT_PIV
+
+int wc_ParseCertPIV(wc_CertPIV* piv, const byte* buf, word32 totalSz)
+{
+    int length = 0;
+    word32 idx = 0;
+
+    WOLFSSL_ENTER("wc_ParseCertPIV");
+
+    if (piv == NULL || buf == NULL || totalSz == 0)
+        return BAD_FUNC_ARG;
+
+    XMEMSET(piv, 0, sizeof(wc_CertPIV));
+
+    /* Certificate - Total Length (0A 82 05FA) */
+    if (GetASNHeader(buf, ASN_PIV_CERT, &idx, &length, totalSz) >= 0) {
+        /* Certificate Buffer (53 82 05F6) */
+        if (GetASNHeader(buf, ASN_APPLICATION | ASN_PRINTABLE_STRING, &idx,
+                                                       &length, totalSz) < 0) {
+            return ASN_PARSE_E;
+        }
+        /* PIV Certificate (70 82 05ED) */
+        if (GetASNHeader(buf, ASN_PIV_TAG_CERT, &idx, &length,
+                                                             totalSz) < 0) {
+            return ASN_PARSE_E;
+        }
+
+        /* Capture certificate buffer pointer and length */
+        piv->cert =   &buf[idx];
+        piv->certSz = length;
+        idx += length;
+
+        /* PIV Certificate Info (71 01 00) */
+        if (GetASNHeader(buf, ASN_PIV_TAG_CERT_INFO, &idx, &length,
+                                                            totalSz) >= 0) {
+            if (length >= 1) {
+                piv->compression = (buf[idx] & ASN_PIV_CERT_INFO_COMPRESSED);
+                piv->isX509 =      (buf[idx] & ASN_PIV_CERT_INFO_ISX509);
+            }
+            idx += length;
+        }
+
+        /* PIV Error Detection (FE 00) */
+        if (GetASNHeader(buf, ASN_PIV_TAG_ERR_DET, &idx, &length,
+                                                            totalSz) >= 0) {
+            piv->certErrDet =   &buf[idx];
+            piv->certErrDetSz = length;
+            idx += length;
+        }
+    }
+
+    /* Nonce (0B 14) */
+    if (GetASNHeader(buf, ASN_PIV_NONCE, &idx, &length, totalSz) >= 0) {
+        piv->nonce =   &buf[idx];
+        piv->nonceSz = length;
+        idx += length;
+    }
+
+    /* Signed Nonce (0C 82 0100) */
+    if (GetASNHeader(buf, ASN_PIV_SIGNED_NONCE, &idx, &length, totalSz) >= 0) {
+        piv->signedNonce =   &buf[idx];
+        piv->signedNonceSz = length;
+        idx += length;
+    }
+
+    return 0;
+}
+
+#endif /* WOLFSSL_CERT_PIV */
+
+
 #undef ERROR_OUT
 
 #endif /* !NO_ASN */
diff --git a/wolfcrypt/src/compress.c b/wolfcrypt/src/compress.c
index 68eb4c0ef..8a21b2461 100644
--- a/wolfcrypt/src/compress.c
+++ b/wolfcrypt/src/compress.c
@@ -121,13 +121,26 @@ int wc_Compress(byte* out, word32 outSz, const byte* in, word32 inSz, word32 fla
 }
 
 
-int wc_DeCompress(byte* out, word32 outSz, const byte* in, word32 inSz)
+/* windowBits:
+* deflateInit() and inflateInit(), as well as deflateInit2() and inflateInit2()
+    with windowBits in 0..15 all process zlib-wrapped deflate data.
+    (See RFC 1950 and RFC 1951.)
+* deflateInit2() and inflateInit2() with negative windowBits in -1..-15 process
+    raw deflate data with no header or trailer.
+* deflateInit2() and inflateInit2() with windowBits in 16..31, i.e. 16
+    added to 0..15, process gzip-wrapped deflate data (RFC 1952).
+* inflateInit2() with windowBits in 32..47 (32 added to 0..15) will
+    automatically detect either a gzip or zlib header (but not raw deflate
+    data), and decompress accordingly.
+*/
+int wc_DeCompress_ex(byte* out, word32 outSz, const byte* in, word32 inSz,
+    int windowBits)
 /*
  * out - pointer to destination buffer
  * outSz - size of destination buffer
  * in - pointer to source buffer to compress
  * inSz - size of source to compress
- * flags - flags to control how compress operates
+ * windowBits - flags to control how decompress operates
  *
  * return:
  *    negative - error code
@@ -150,10 +163,11 @@ int wc_DeCompress(byte* out, word32 outSz, const byte* in, word32 inSz)
     stream.zfree = (free_func)myFree;
     stream.opaque = (voidpf)0;
 
-    if (inflateInit2(&stream, DEFLATE_DEFAULT_WINDOWBITS) != Z_OK)
+    if (inflateInit2(&stream, windowBits) != Z_OK)
         return DECOMPRESS_INIT_E;
 
-    if (inflate(&stream, Z_FINISH) != Z_STREAM_END) {
+    result = inflate(&stream, Z_FINISH);
+    if (result != Z_STREAM_END) {
         inflateEnd(&stream);
         return DECOMPRESS_E;
     }
@@ -167,5 +181,11 @@ int wc_DeCompress(byte* out, word32 outSz, const byte* in, word32 inSz)
 }
 
 
+int wc_DeCompress(byte* out, word32 outSz, const byte* in, word32 inSz)
+{
+    return wc_DeCompress_ex(out, outSz, in, inSz, DEFLATE_DEFAULT_WINDOWBITS);
+}
+
+
 #endif /* HAVE_LIBZ */
 
diff --git a/wolfcrypt/src/cryptodev.c b/wolfcrypt/src/cryptodev.c
index 6e88c850b..55b7f00fa 100644
--- a/wolfcrypt/src/cryptodev.c
+++ b/wolfcrypt/src/cryptodev.c
@@ -330,4 +330,13 @@ int wc_CryptoDev_AesGcmDecrypt(Aes* aes, byte* out,
 }
 #endif /* !NO_AES && HAVE_AESGCM */
 
+/* call to support callback for entire buffer hash */
+int wc_CryptoDev_Sha256Hash(const byte* data, word32 len, byte* hash)
+{
+    (void)data;
+    (void)len;
+    (void)hash;
+    return NOT_COMPILED_IN;
+}
+
 #endif /* WOLF_CRYPTO_DEV */
diff --git a/wolfcrypt/src/error.c b/wolfcrypt/src/error.c
index 87eb05d0c..a2b435945 100644
--- a/wolfcrypt/src/error.c
+++ b/wolfcrypt/src/error.c
@@ -483,10 +483,19 @@ const char* wc_GetErrorString(int error)
         return "DH Check Private Key failure";
 
     case WC_AFALG_SOCK_E:
-  	return "AF_ALG socket error";
+      	return "AF_ALG socket error";
 
     case WC_DEVCRYPTO_E:
-	return "Error with /dev/crypto";
+        return "Error with /dev/crypto";
+
+    case ZLIB_INIT_ERROR:
+        return "zlib init error";
+
+    case ZLIB_COMPRESS_ERROR:
+        return "zlib compress error";
+
+    case ZLIB_DECOMPRESS_ERROR:
+        return "zlib decompress error";
 
     default:
         return "unknown error number";
diff --git a/wolfcrypt/src/tfm.c b/wolfcrypt/src/tfm.c
index d54bbc200..6ee58c0b6 100644
--- a/wolfcrypt/src/tfm.c
+++ b/wolfcrypt/src/tfm.c
@@ -2324,7 +2324,7 @@ int fp_to_unsigned_bin(fp_int *a, unsigned char *b)
 #ifdef WOLFSSL_SMALL_STACK
   XFREE(t, NULL, DYNAMIC_TYPE_TMP_BUFFER);
 #endif
-  return FP_OKAY; 
+  return FP_OKAY;
 }
 
 int fp_unsigned_bin_size(fp_int *a)
diff --git a/wolfssl/error-ssl.h b/wolfssl/error-ssl.h
index 939fba8a3..04c4a8552 100644
--- a/wolfssl/error-ssl.h
+++ b/wolfssl/error-ssl.h
@@ -66,9 +66,6 @@ enum wolfSSL_ErrorCodes {
     CLIENT_ID_ERROR              = -331,   /* psk client identity error  */
     SERVER_HINT_ERROR            = -332,   /* psk server hint error  */
     PSK_KEY_ERROR                = -333,   /* psk key error  */
-    ZLIB_INIT_ERROR              = -334,   /* zlib init error  */
-    ZLIB_COMPRESS_ERROR          = -335,   /* zlib compression error  */
-    ZLIB_DECOMPRESS_ERROR        = -336,   /* zlib decompression error  */
 
     GETTIME_ERROR                = -337,   /* gettimeofday failed ??? */
     GETITIMER_ERROR              = -338,   /* getitimer failed ??? */
diff --git a/wolfssl/wolfcrypt/asn.h b/wolfssl/wolfcrypt/asn.h
index 1c7d1b245..31ff20069 100644
--- a/wolfssl/wolfcrypt/asn.h
+++ b/wolfssl/wolfcrypt/asn.h
@@ -58,6 +58,9 @@
 #include <wolfssl/wolfcrypt/sha256.h>
 #include <wolfssl/wolfcrypt/asn_public.h>   /* public interface */
 
+#if defined(NO_SHA) && defined(NO_SHA256)
+    #define WC_SHA256_DIGEST_SIZE 32
+#endif
 
 #ifdef __cplusplus
     extern "C" {
@@ -85,6 +88,7 @@ enum ASN_Tags {
     ASN_UTF8STRING        = 0x0c,
     ASN_SEQUENCE          = 0x10,
     ASN_SET               = 0x11,
+    ASN_PRINTABLE_STRING  = 0x13,
     ASN_UTC_TIME          = 0x17,
     ASN_OTHER_TYPE        = 0x00,
     ASN_RFC822_TYPE       = 0x01,
@@ -99,6 +103,7 @@ enum ASN_Tags {
 
     /* ASN_Flags - Bitmask */
     ASN_CONSTRUCTED       = 0x20,
+    ASN_APPLICATION       = 0x40,
     ASN_CONTEXT_SPECIFIC  = 0x80,
 };
 
@@ -137,7 +142,7 @@ enum DN_Tags {
 #define WOLFSSL_BUS_CAT          "/businessCategory="
 #define WOLFSSL_JOI_C            "/jurisdictionC="
 #define WOLFSSL_JOI_ST           "/jurisdictionST="
-#define WOLFSSL_EMAIL_ADDR "/emailAddress="
+#define WOLFSSL_EMAIL_ADDR       "/emailAddress="
 
 /* NIDs */
 enum
@@ -186,6 +191,24 @@ enum ECC_TYPES
     ECC_PREFIX_1 = 161
 };
 
+#ifdef WOLFSSL_CERT_PIV
+    enum PIV_Tags {
+        ASN_PIV_CERT          = 0x0A,
+        ASN_PIV_NONCE         = 0x0B,
+        ASN_PIV_SIGNED_NONCE  = 0x0C,
+            
+        ASN_PIV_TAG_CERT      = 0x70,
+        ASN_PIV_TAG_CERT_INFO = 0x71,
+        ASN_PIV_TAG_MSCUID    = 0x72,
+        ASN_PIV_TAG_ERR_DET   = 0xFE,
+            
+        /* certificate info masks */
+        ASN_PIV_CERT_INFO_COMPRESSED = 0x03,
+        ASN_PIV_CERT_INFO_ISX509     = 0x04,
+    };
+#endif /* WOLFSSL_CERT_PIV */
+
+
 #define ASN_JOI_PREFIX "\x2b\x06\x01\x04\x01\x82\x37\x3c\x02\x01"
 #define ASN_JOI_C      0x3
 #define ASN_JOI_ST     0x2
@@ -896,11 +919,17 @@ struct TrustedPeerCert {
     #define WOLFSSL_ASN_API WOLFSSL_LOCAL
 #endif
 
-
-#ifdef NO_SHA
-    #define CalcHashId(data, len, hash)    wc_Sha256Hash(data, len, hash)
+/* Macro for calculating hashId */
+#if defined(NO_SHA) && defined(NO_SHA256)
+    #ifdef WOLF_CRYPTO_DEV
+        #define CalcHashId(data, len, hash) wc_CryptoDevSha256Hash(data, len, hash)
+    #else
+        #define CalcHashId(data, len, hash) NOT_COMPILED_IN
+    #endif
+#elif defined(NO_SHA)
+    #define CalcHashId(data, len, hash)     wc_Sha256Hash(data, len, hash)
 #else
-    #define CalcHashId(data, len, hash)    wc_ShaHash(data, len, hash)
+    #define CalcHashId(data, len, hash)     wc_ShaHash(data, len, hash)
 #endif
 
 
diff --git a/wolfssl/wolfcrypt/asn_public.h b/wolfssl/wolfcrypt/asn_public.h
index 1ace83395..9c5a1cf09 100644
--- a/wolfssl/wolfcrypt/asn_public.h
+++ b/wolfssl/wolfcrypt/asn_public.h
@@ -479,6 +479,27 @@ WOLFSSL_API int wc_GetTime(void* timePtr, word32 timeSize);
 #endif
 
 
+#ifdef WOLFSSL_CERT_PIV
+
+typedef struct _wc_CertPIV {
+    const byte*  cert;
+    word32       certSz;
+    const byte*  certErrDet;
+    word32       certErrDetSz;
+    const byte*  nonce;
+    word32       nonceSz;
+    const byte*  signedNonce;
+    word32       signedNonceSz;
+
+    /* flags */
+    word16       compression:2;
+    word16       isX509:1;
+} wc_CertPIV;
+
+WOLFSSL_API int wc_ParseCertPIV(wc_CertPIV* cert, const byte* buf, word32 totalSz);
+#endif /* WOLFSSL_CERT_PIV */
+
+
 #ifdef __cplusplus
     } /* extern "C" */
 #endif
diff --git a/wolfssl/wolfcrypt/compress.h b/wolfssl/wolfcrypt/compress.h
index a35c3b0c9..4586d2aec 100644
--- a/wolfssl/wolfcrypt/compress.h
+++ b/wolfssl/wolfcrypt/compress.h
@@ -38,10 +38,13 @@
 
 #define COMPRESS_FIXED 1
 
+#define LIBZ_WINBITS_GZIP 16
+
 
 WOLFSSL_API int wc_Compress(byte*, word32, const byte*, word32, word32);
 WOLFSSL_API int wc_DeCompress(byte*, word32, const byte*, word32);
-
+WOLFSSL_API int wc_DeCompress_ex(byte* out, word32 outSz, const byte* in,
+    word32 inSz, int windowBits);
 
 #ifdef __cplusplus
     } /* extern "C" */
diff --git a/wolfssl/wolfcrypt/cryptodev.h b/wolfssl/wolfcrypt/cryptodev.h
index 1b717e6fa..7f3035fe2 100644
--- a/wolfssl/wolfcrypt/cryptodev.h
+++ b/wolfssl/wolfcrypt/cryptodev.h
@@ -175,6 +175,8 @@ WOLFSSL_LOCAL int wc_CryptoDev_AesGcmDecrypt(Aes* aes, byte* out,
 
 #endif /* !NO_AES && HAVE_AESGCM */
 
+WOLFSSL_LOCAL int wc_CryptoDev_Sha256Hash(const byte* data, word32 len, byte* hash);
+
 #endif /* WOLF_CRYPTO_DEV */
 
 #ifdef __cplusplus
diff --git a/wolfssl/wolfcrypt/error-crypt.h b/wolfssl/wolfcrypt/error-crypt.h
index b55df1231..1efc4259b 100644
--- a/wolfssl/wolfcrypt/error-crypt.h
+++ b/wolfssl/wolfcrypt/error-crypt.h
@@ -216,7 +216,11 @@ enum {
     WC_AFALG_SOCK_E     = -264,  /* AF_ALG socket error */
     WC_DEVCRYPTO_E      = -265,  /* /dev/crypto error */
 
-    WC_LAST_E           = -265,  /* Update this to indicate last error */
+    ZLIB_INIT_ERROR     = -266,   /* zlib init error  */
+    ZLIB_COMPRESS_ERROR = -267,   /* zlib compression error  */
+    ZLIB_DECOMPRESS_ERROR = -268,  /* zlib decompression error  */
+
+    WC_LAST_E           = -268,  /* Update this to indicate last error */
     MIN_CODE_E          = -300   /* errors -101 - -299 */
 
     /* add new companion error id strings for any new error codes