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Compatible with SDF Engine

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The SDF Engine might not malloc `ctx->md_data`.
This commit is contained in:
Zhi Guan
2018-01-25 23:56:14 +08:00
parent 4ae40d435b
commit 32c343fc06
1 changed files with 2 additions and 1 deletions
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crypto/evp/digest.c
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@@ -184,6 +184,7 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size)
ctx->digest->cleanup(ctx); ctx->digest->cleanup(ctx);
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED); EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED);
} }
if (ctx->md_data)
OPENSSL_cleanse(ctx->md_data, ctx->digest->ctx_size); OPENSSL_cleanse(ctx->md_data, ctx->digest->ctx_size);
return ret; return ret;
} }