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Fix issue if salt = NULL and salt_len !=0 in mbedtls_hkdf_extract()

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This commit is contained in:
Brian J Murray
2018-07-06 10:03:58 -07:00
committed by Brian Murray
parent a61d123e0e
commit ca2ea4e217
1 changed files with 5 additions and 0 deletions
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5
library/hkdf.c
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@@ -62,6 +62,11 @@ int mbedtls_hkdf_extract( const mbedtls_md_info_t *md,
{
size_t hash_len;
if( salt_len != 0 )
{
return MBEDTLS_ERR_HKDF_BAD_INPUT_DATA;
}
hash_len = mbedtls_md_get_size( md );
if( hash_len == 0 )