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 {
14 ENGINE *engine; /* functional reference if 'digest' is
18 /* Public key context for sign/verify */
20 /* Update function: usually copied from EVP_MD */
21 int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
24 struct evp_cipher_ctx_st {
25 const EVP_CIPHER *cipher;
26 ENGINE *engine; /* functional reference if 'cipher' is
28 int encrypt; /* encrypt or decrypt */
29 int buf_len; /* number we have left */
30 unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */
31 unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */
32 unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */
33 int num; /* used by cfb/ofb/ctr mode */
34 /* FIXME: Should this even exist? It appears unused */
35 void *app_data; /* application stuff */
36 int key_len; /* May change for variable length cipher */
37 unsigned long flags; /* Various flags */
38 void *cipher_data; /* per EVP data */
41 unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */
42 } /* EVP_CIPHER_CTX */ ;
44 struct evp_mac_ctx_st {
45 const EVP_MAC *meth; /* Method structure */
46 void *data; /* Individual method data */
49 struct evp_kdf_ctx_st {
50 const EVP_KDF_METHOD *kmeth;
51 EVP_KDF_IMPL *impl; /* Algorithm-specific data */
54 int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass,
55 int passlen, ASN1_TYPE *param,
56 const EVP_CIPHER *c, const EVP_MD *md,
59 struct evp_Encode_Ctx_st {
60 /* number saved in a partial encode/decode */
63 * The length is either the output line length (in input bytes) or the
64 * shortest input line length that is ok. Once decoding begins, the
65 * length is adjusted up each time a longer line is decoded
69 unsigned char enc_data[80];
70 /* number read on current line */
75 typedef struct evp_pbe_st EVP_PBE_CTL;
76 DEFINE_STACK_OF(EVP_PBE_CTL)
78 int is_partially_overlapping(const void *ptr1, const void *ptr2, int len);
80 #include <openssl/ossl_typ.h>
81 #include <openssl/core.h>
83 void *evp_generic_fetch(OPENSSL_CTX *ctx, int operation_id,
84 const char *algorithm, const char *properties,
85 void *(*new_method)(int nid, const OSSL_DISPATCH *fns,
87 int (*upref_method)(void *),
88 void (*free_method)(void *));