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Implemented size and hex checks in interface.c

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DoZ10 2017-05-14 07:32:33 -04:00
parent 5ab5e6c7b6
commit f0842f6d17
1 changed files with 4 additions and 0 deletions
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src/interface.c
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@ -5324,15 +5324,19 @@ int chacha20_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_U
u8 *position_marker = (u8 *) strchr ((const char *) input_buf, '*') + 1;
if (position_marker == NULL) return (PARSER_SEPARATOR_UNMATCHED);
if (is_valid_hex_string (position_marker, 16) == false) return (PARSER_SALT_ENCODING);
u8 *iv_marker = (u8 *) strchr ((const char *) position_marker, '*') + 1;
if (iv_marker == NULL) return (PARSER_SEPARATOR_UNMATCHED);
if (is_valid_hex_string (iv_marker, 16) == false) return (PARSER_SALT_ENCODING);
u8 *plain_marker = (u8 *) strchr ((const char *) iv_marker, '*') + 1;
if (plain_marker == NULL) return (PARSER_SEPARATOR_UNMATCHED);
if (is_valid_hex_string (plain_marker, 16) == false) return (PARSER_SALT_ENCODING);
u8 *cipher_marker = (u8 *) strchr ((const char *) plain_marker, '*') + 1;
if (cipher_marker == NULL) return (PARSER_SEPARATOR_UNMATCHED);
if (is_valid_hex_string (cipher_marker, 16) == false) return (PARSER_SALT_ENCODING);
chacha20->iv[0] = hex_to_u32 ((const u8 *) iv_marker + 8);
chacha20->iv[1] = hex_to_u32 ((const u8 *) iv_marker + 0);