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Merge pull request #533 from dgarske/dg_fixes

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Fixes for HMAC/small stack heap and disable RSA warnings
This commit is contained in:
toddouska
2016-08-26 14:30:55 -07:00
committed by GitHub
parent 401463a983 925e5e3484
commit bd312cb766
2 changed files with 30 additions and 21 deletions
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21
src/internal.c
View File

@@ -13300,7 +13300,9 @@ static int DoServerKeyExchange(WOLFSSL* ssl, const byte* input,
int ret = 0;
word16 length = 0;
word32 idx = *inOutIdx, begin = *inOutIdx;
#ifndef NO_RSA
int typeH = 0;
#endif
byte* output = NULL;
byte sigAlgo = ssl->specs.sig_algo;
word16 sigSz = 0;
@@ -13310,7 +13312,6 @@ static int DoServerKeyExchange(WOLFSSL* ssl, const byte* input,
(void)output;
(void)sigSz;
(void)typeH;
WOLFSSL_ENTER("DoServerKeyExchange");
@@ -13332,7 +13333,9 @@ static int DoServerKeyExchange(WOLFSSL* ssl, const byte* input,
length = ssl->async.length;
output = ssl->async.output;
sigSz = ssl->async.sigSz;
#ifndef NO_RSA
typeH = ssl->async.hashAlgo;
#endif
sigAlgo = ssl->async.sigAlgo;
#if !defined(NO_DH) || defined(HAVE_ECC)
verifySig = ssl->async.data;
@@ -13808,7 +13811,9 @@ static int DoServerKeyExchange(WOLFSSL* ssl, const byte* input,
ERROR_OUT(ALGO_ID_E, exit_dske);
#endif
}
#ifndef NO_RSA
typeH = wc_HashGetOID(hashType);
#endif
/* signature */
if ((idx - begin) + OPAQUE16_LEN > size) {
@@ -13920,7 +13925,8 @@ static int DoServerKeyExchange(WOLFSSL* ssl, const byte* input,
}
if (verifySig == NULL) {
verifySig = (byte*)XMALLOC(length, ssl->heap, DYNAMIC_TYPE_TMP_BUFFER);
verifySig = (byte*)XMALLOC(length, ssl->heap,
DYNAMIC_TYPE_TMP_BUFFER);
if (!verifySig) {
ERROR_OUT(MEMORY_E, exit_dske);
}
@@ -14152,7 +14158,9 @@ exit_dske:
ssl->async.length = length;
ssl->async.output = output;
ssl->async.sigSz = sigSz;
#ifndef NO_RSA
ssl->async.hashAlgo = typeH;
#endif
ssl->async.sigAlgo = sigAlgo;
#if !defined(NO_DH) || defined(HAVE_ECC)
ssl->async.data = verifySig;
@@ -15617,9 +15625,6 @@ int SendCertificateVerify(WOLFSSL* ssl)
case KEYSHARE_DO:
{
/* restore verify pointer */
verify = &output[idx];
#ifdef HAVE_ECC
if (ssl->sigType == DYNAMIC_TYPE_ECC) {
ret = EccSign(ssl,
@@ -15638,6 +15643,9 @@ int SendCertificateVerify(WOLFSSL* ssl)
#endif /* HAVE_ECC */
#ifndef NO_RSA
if (ssl->sigType == DYNAMIC_TYPE_RSA) {
/* restore verify pointer */
verify = &output[idx];
ret = RsaSign(ssl,
ssl->buffers.sig.buffer, ssl->buffers.sig.length,
verify + extraSz + VERIFY_HEADER, &ssl->sigLen,
@@ -15683,7 +15691,8 @@ int SendCertificateVerify(WOLFSSL* ssl)
if (verifySig == NULL) {
ERROR_OUT(MEMORY_E, exit_scv);
}
XMEMCPY(verifySig, verify + extraSz + VERIFY_HEADER, ssl->sigLen);
XMEMCPY(verifySig, verify + extraSz + VERIFY_HEADER,
ssl->sigLen);
}
/* check for signature faults */

6
wolfcrypt/src/hmac.c
View File

@@ -739,13 +739,13 @@ int wc_HKDF(int type, const byte* inKey, word32 inKeySz,
return BAD_FUNC_ARG;
#ifdef WOLFSSL_SMALL_STACK
tmp = (byte*)XMALLOC(MAX_DIGEST_SIZE, hmac->heap, DYNAMIC_TYPE_TMP_BUFFER);
tmp = (byte*)XMALLOC(MAX_DIGEST_SIZE, myHmac.heap, DYNAMIC_TYPE_TMP_BUFFER);
if (tmp == NULL)
return MEMORY_E;
prk = (byte*)XMALLOC(MAX_DIGEST_SIZE, hmac->heap, DYNAMIC_TYPE_TMP_BUFFER);
prk = (byte*)XMALLOC(MAX_DIGEST_SIZE, myHmac.heap, DYNAMIC_TYPE_TMP_BUFFER);
if (prk == NULL) {
XFREE(tmp, hmac->heap, DYNAMIC_TYPE_TMP_BUFFER);
XFREE(tmp, myHmac.heap, DYNAMIC_TYPE_TMP_BUFFER);
return MEMORY_E;
}
#endif