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/*
* Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* EVP_MD_CTX related stuff */
struct evp_md_ctx_st {
const EVP_MD *digest;
ENGINE *engine; /* functional reference if 'digest' is
* ENGINE-provided */
unsigned long flags;
void *md_data;
/* Public key context for sign/verify */
EVP_PKEY_CTX *pctx;
/* Update function: usually copied from EVP_MD */
int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
} /* EVP_MD_CTX */ ;
struct evp_cipher_ctx_st {
const EVP_CIPHER *cipher;
ENGINE *engine; /* functional reference if 'cipher' is
* ENGINE-provided */
int encrypt; /* encrypt or decrypt */
int buf_len; /* number we have left */
unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */
unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */
unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */
int num; /* used by cfb/ofb/ctr mode */
/* FIXME: Should this even exist? It appears unused */
void *app_data; /* application stuff */
int key_len; /* May change for variable length cipher */
unsigned long flags; /* Various flags */
void *cipher_data; /* per EVP data */
int final_used;
int block_mask;
unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */
} /* EVP_CIPHER_CTX */ ;
int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass,
int passlen, ASN1_TYPE *param,
const EVP_CIPHER *c, const EVP_MD *md,
int en_de);
struct evp_Encode_Ctx_st {
/* number saved in a partial encode/decode */
int num;
/*
* The length is either the output line length (in input bytes) or the
* shortest input line length that is ok. Once decoding begins, the
* length is adjusted up each time a longer line is decoded
*/
int length;
/* data to encode */
unsigned char enc_data[80];
/* number read on current line */
int line_num;
unsigned int flags;
};
typedef struct evp_pbe_st EVP_PBE_CTL;
DEFINE_STACK_OF(EVP_PBE_CTL)
int is_partially_overlapping(const void *ptr1, const void *ptr2, int len);
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