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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/evp/evp_locl.h
2 * Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* EVP_MD_CTX related stuff */
12 struct evp_md_ctx_st
{
13 const EVP_MD
*reqdigest
; /* The original requested digest */
15 ENGINE
*engine
; /* functional reference if 'digest' is
19 /* Public key context for sign/verify */
21 /* Update function: usually copied from EVP_MD */
22 int (*update
) (EVP_MD_CTX
*ctx
, const void *data
, size_t count
);
26 EVP_MD
*fetched_digest
;
29 struct evp_cipher_ctx_st
{
30 const EVP_CIPHER
*cipher
;
31 ENGINE
*engine
; /* functional reference if 'cipher' is
33 int encrypt
; /* encrypt or decrypt */
34 int buf_len
; /* number we have left */
35 unsigned char oiv
[EVP_MAX_IV_LENGTH
]; /* original iv */
36 unsigned char iv
[EVP_MAX_IV_LENGTH
]; /* working iv */
37 unsigned char buf
[EVP_MAX_BLOCK_LENGTH
]; /* saved partial block */
38 int num
; /* used by cfb/ofb/ctr mode */
39 /* FIXME: Should this even exist? It appears unused */
40 void *app_data
; /* application stuff */
41 int key_len
; /* May change for variable length cipher */
42 unsigned long flags
; /* Various flags */
43 void *cipher_data
; /* per EVP data */
46 unsigned char final
[EVP_MAX_BLOCK_LENGTH
]; /* possible final block */
50 EVP_CIPHER
*fetched_cipher
;
51 } /* EVP_CIPHER_CTX */ ;
53 struct evp_mac_ctx_st
{
54 const EVP_MAC
*meth
; /* Method structure */
55 void *data
; /* Individual method data */
58 struct evp_kdf_ctx_st
{
59 const EVP_KDF
*meth
; /* Method structure */
60 EVP_KDF_IMPL
*impl
; /* Algorithm-specific data */
63 int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX
*ctx
, const char *pass
,
64 int passlen
, ASN1_TYPE
*param
,
65 const EVP_CIPHER
*c
, const EVP_MD
*md
,
68 struct evp_Encode_Ctx_st
{
69 /* number saved in a partial encode/decode */
72 * The length is either the output line length (in input bytes) or the
73 * shortest input line length that is ok. Once decoding begins, the
74 * length is adjusted up each time a longer line is decoded
78 unsigned char enc_data
[80];
79 /* number read on current line */
84 typedef struct evp_pbe_st EVP_PBE_CTL
;
85 DEFINE_STACK_OF(EVP_PBE_CTL
)
87 int is_partially_overlapping(const void *ptr1
, const void *ptr2
, int len
);
89 #include <openssl/ossl_typ.h>
90 #include <openssl/core.h>
92 void *evp_generic_fetch(OPENSSL_CTX
*ctx
, int operation_id
,
93 const char *algorithm
, const char *properties
,
94 void *(*new_method
)(const OSSL_DISPATCH
*fns
,
96 int (*up_ref_method
)(void *),
97 void (*free_method
)(void *));