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Remove support for custom MD methods

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Custom MD methods are considered legacy and have been deprecated
since 3.0. With the removal of ENGINEs they become a lot less useful
and add significant complexity to the code. We should therefore remove
them in 4.0.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/29366)
This commit is contained in:
Matt Caswell
2025-12-10 10:56:49 +00:00
parent 1bfdcf9057
commit 992368ec46
7 changed files with 10 additions and 477 deletions
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1
include/crypto/evp.h
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@@ -251,7 +251,6 @@ struct evp_kdf_st {
#define EVP_ORIG_DYNAMIC 0
#define EVP_ORIG_GLOBAL 1
#define EVP_ORIG_METH 2
struct evp_md_st {
/* nid */

45
include/openssl/evp.h
View File

@@ -127,51 +127,6 @@ int EVP_default_properties_enable_fips(OSSL_LIB_CTX *libctx, int enable);
#define EVP_PKEY_MO_DECRYPT 0x0008
#ifndef EVP_MD
#ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0 EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type);
OSSL_DEPRECATEDIN_3_0 EVP_MD *EVP_MD_meth_dup(const EVP_MD *md);
OSSL_DEPRECATEDIN_3_0 void EVP_MD_meth_free(EVP_MD *md);
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize);
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize);
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize);
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags);
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx));
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count));
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx, unsigned char *md));
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to, const EVP_MD_CTX *from));
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx));
OSSL_DEPRECATEDIN_3_0
int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd, int p1, void *p2));
OSSL_DEPRECATEDIN_3_0 int EVP_MD_meth_get_input_blocksize(const EVP_MD *md);
OSSL_DEPRECATEDIN_3_0 int EVP_MD_meth_get_result_size(const EVP_MD *md);
OSSL_DEPRECATEDIN_3_0 int EVP_MD_meth_get_app_datasize(const EVP_MD *md);
OSSL_DEPRECATEDIN_3_0 unsigned long EVP_MD_meth_get_flags(const EVP_MD *md);
OSSL_DEPRECATEDIN_3_0
int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx);
OSSL_DEPRECATEDIN_3_0
int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx,
const void *data, size_t count);
OSSL_DEPRECATEDIN_3_0
int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx,
unsigned char *md);
OSSL_DEPRECATEDIN_3_0
int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to,
const EVP_MD_CTX *from);
OSSL_DEPRECATEDIN_3_0
int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx);
OSSL_DEPRECATEDIN_3_0
int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd,
int p1, void *p2);
#endif
/* digest can only handle a single block */
#define EVP_MD_FLAG_ONESHOT 0x0001