在2009-06-02，"Victor B. Wagner" <vi...@cryptocom.ru> 写道：
>On 2009.06.01 at 22:05:48 +0800, jazeltq wrote:
>
>> hello,
>> where can i find the definition of ec_point_st and ec_group_st
>> what i found are:
>> typedef struct ec_point_st EC_POINT;
>> typedef struct ec_group_st
>> 111 /*
>> 112 EC_METHOD *meth;
>> 113 -- field definition
>> 114 -- curve coefficients
>> 115 -- optional generator with associated information (order,
>> cofactor)
>> 116 -- optional extra data (precomputed table for fast computation of
>> multiples of generator)
>> 117 -- ASN1 stuff
>> 118 */
>> 119 EC_GROUP;
>> does anyone know ? thank you
>
>These are hidden structures. They are defined in the internal include
why use the hidden structures?
>file ec_lcl.h, which present in the OpenSSL sources, but not included in
which directory include file ec_lcl.h, is it in the ec directory ?but in my
sources i can't find it.
>the compiled distribution.
>
>Idea is that members of these structures are accessable only from within
>libcrypto library.
>
>Users or the library shouldn't look inside these structures, they only
>should operate via APIs, declared in the ec.h
>
>API could be incomplete. When dealing with other newer parts of OpenSSL
>API (especially EVP_PKEY_CTX API) I've encountered situations where
>neccessary API calls are missing. In this case best approach is to
>design new API function which provides neccessary functionality and
>sumbit a patch.
I just want to study the ecc, and want to know it deeply,
>
>
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