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Make the definition of EVP_MD opaque

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This moves the definition to crypto/include/internal/evp_int.h and
defines all the necessary method creators, destructors, writers and
accessors.  The name standard for the latter is inspired from the
corresponding functions to manipulate UI methods.

Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Richard Levitte
2015-11-29 20:09:34 +01:00
parent 6e59a892db
commit 2db6bf6f85
4 changed files with 178 additions and 15 deletions
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17
crypto/include/internal/evp_int.h
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@@ -129,3 +129,20 @@ extern const EVP_PKEY_METHOD dsa_pkey_meth;
extern const EVP_PKEY_METHOD ec_pkey_meth;
extern const EVP_PKEY_METHOD hmac_pkey_meth;
extern const EVP_PKEY_METHOD rsa_pkey_meth;
struct evp_md_st {
int type;
int pkey_type;
int md_size;
unsigned long flags;
int (*init) (EVP_MD_CTX *ctx);
int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
int (*cleanup) (EVP_MD_CTX *ctx);
int block_size;
int ctx_size; /* how big does the ctx->md_data need to be */
/* control function */
int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
} /* EVP_MD */ ;