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Allow for zero length hash. Its not an error.

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Fixes ZD17910
This commit is contained in:
Anthony Hu
2024-04-30 11:06:30 -04:00
parent 6e49aa7543
commit 529b6a1eb9
2 changed files with 58 additions and 3 deletions
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20
wolfcrypt/src/sha256.c
View File

@ -777,7 +777,14 @@ static int InitSha256(wc_Sha256* sha256)
{
int ret = 0;
if (sha256 == NULL || (data == NULL && len > 0)) {
if (sha256 == NULL) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
if (data == NULL) {
return BAD_FUNC_ARG;
}
@ -828,6 +835,17 @@ static int InitSha256(wc_Sha256* sha256)
int wc_Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
{
if (sha256 == NULL) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
if (data == NULL) {
return BAD_FUNC_ARG;
}
return se050_hash_update(&sha256->se050Ctx, data, len);
}

41
wolfcrypt/src/sha512.c
View File

@ -167,6 +167,17 @@
}
int wc_Sha512Update(wc_Sha512* sha512, const byte* data, word32 len)
{
if (sha512 == NULL) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
if (data == NULL) {
return BAD_FUNC_ARG;
}
return se050_hash_update(&sha512->se050Ctx, data, len);
}
int wc_Sha512Final(wc_Sha512* sha512, byte* hash)
@ -1024,7 +1035,14 @@ static WC_INLINE int Sha512Update(wc_Sha512* sha512, const byte* data, word32 le
int wc_Sha512Update(wc_Sha512* sha512, const byte* data, word32 len)
{
if (sha512 == NULL || (data == NULL && len > 0)) {
if (sha512 == NULL) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
if (data == NULL) {
return BAD_FUNC_ARG;
}
@ -1414,6 +1432,17 @@ int wc_Sha512Transform(wc_Sha512* sha, const unsigned char* data)
}
int wc_Sha384Update(wc_Sha384* sha384, const byte* data, word32 len)
{
if (sha384 == NULL) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
if (data == NULL) {
return BAD_FUNC_ARG;
}
return se050_hash_update(&sha384->se050Ctx, data, len);
}
@ -1489,7 +1518,15 @@ static int InitSha384(wc_Sha384* sha384)
int wc_Sha384Update(wc_Sha384* sha384, const byte* data, word32 len)
{
if (sha384 == NULL || (data == NULL && len > 0)) {
if (sha384 == NULL) {
return BAD_FUNC_ARG;
}
if (data == NULL && len == 0) {
/* valid, but do nothing */
return 0;
}
if (data == NULL) {
return BAD_FUNC_ARG;
}