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Merge pull request #548 from liclicli/master

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fix: zero length NULL should be able to be used for sm3 digest update.
This commit is contained in:
Zhi Guan
2018-08-05 13:33:58 +08:00
committed by GitHub
parent 28d524dd71 88293ffd8c
commit 962f7fbe3e
1 changed files with 1 additions and 1 deletions
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crypto/evp/m_sm3.c
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@@ -68,7 +68,7 @@ static int init(EVP_MD_CTX *ctx)
static int update(EVP_MD_CTX *ctx, const void *in, size_t inlen) static int update(EVP_MD_CTX *ctx, const void *in, size_t inlen)
{ {
if (!ctx || !EVP_MD_CTX_md_data(ctx) || !in) { if (!ctx || !EVP_MD_CTX_md_data(ctx) || (!in && inlen != 0)) {
return 0; return 0;
} }
sm3_update(EVP_MD_CTX_md_data(ctx), in, inlen); sm3_update(EVP_MD_CTX_md_data(ctx), in, inlen);