From 62304411dd5e5bffabdd0c3e2812b3349641eb72 Mon Sep 17 00:00:00 2001
From: TakayukiMatsuo <tak@wolfssl.com>
Date: Fri, 19 Mar 2021 14:48:46 +0900
Subject: [PATCH] Remove wc_EccPublicKeyDecode_ex

---
 wolfcrypt/src/asn.c | 64 ---------------------------------------------
 1 file changed, 64 deletions(-)

diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 135a11075..33dbbafcf 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -16169,70 +16169,6 @@ static int EccKeyParamCopy(char** dst, char* src)
     return ret;
 }
 #endif /* WOLFSSL_CUSTOM_CURVES */
-/* wc_EccPublicKeyDecode_ex gets ECC public key data in DER format via "input"
- * and returns the curve id to "curveId" and the point position to "pointIdx".
- * Returns 0 on success, negative values on failure.
- */
-int wc_EccPublicKeyDecode_ex(const byte* input,
-                            word32* inOutIdx, int* curveId,
-                            word32* pointIdx, int* pointSz, word32 inSz)
-{
-    int    ret;
-    int    version, length;
-    word32 oidSum, localIdx;
-    byte   tag;
-
-    if (input == NULL || inOutIdx == NULL || curveId == NULL ||
-                pointIdx == NULL || pointSz == NULL || inSz == 0)
-        return BAD_FUNC_ARG;
-
-    if (GetSequence(input, inOutIdx, &length, inSz) < 0)
-        return ASN_PARSE_E;
-
-    if (GetMyVersion(input, inOutIdx, &version, inSz) >= 0)
-        return ASN_PARSE_E;
-
-    if (GetSequence(input, inOutIdx, &length, inSz) < 0)
-        return ASN_PARSE_E;
-
-    ret = SkipObjectId(input, inOutIdx, inSz);
-    if (ret != 0)
-        return ret;
-
-    if (*inOutIdx >= inSz) {
-        return BUFFER_E;
-    }
-
-    localIdx = *inOutIdx;
-
-    if (GetASNTag(input, &localIdx, &tag, inSz) == 0 &&
-        tag == (ASN_SEQUENCE | ASN_CONSTRUCTED)) {
-        return BAD_FUNC_ARG;            /* given key is not a public key*/
-    }
-
-    /* ecc params information */
-    ret = GetObjectId(input, inOutIdx, &oidSum, oidIgnoreType, inSz);
-    if (ret != 0)
-        return ret;
-
-    /* get curve id */
-    if ((ret = CheckCurve(oidSum)) < 0)
-        return ECC_CURVE_OID_E;
-    else {
-        *curveId = ret;
-    }
-
-    /* key header */
-    ret = CheckBitString(input, inOutIdx, &length, inSz, 1, NULL);
-    if (ret != 0)
-        return ret;
-
-    *pointIdx = *inOutIdx;
-    *pointSz  =  length;
-    *inOutIdx += length;
-
-    return 0;
-}
 
 int wc_EccPublicKeyDecode(const byte* input, word32* inOutIdx,
                           ecc_key* key, word32 inSz)