[331] | 1 | /*
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| 2 | * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | /* EVP_MD_CTX related stuff */
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| 11 |
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| 12 | struct evp_md_ctx_st {
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| 13 | const EVP_MD *digest;
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| 14 | ENGINE *engine; /* functional reference if 'digest' is
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| 15 | * ENGINE-provided */
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| 16 | unsigned long flags;
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| 17 | void *md_data;
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| 18 | /* Public key context for sign/verify */
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| 19 | EVP_PKEY_CTX *pctx;
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| 20 | /* Update function: usually copied from EVP_MD */
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| 21 | int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
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| 22 | } /* EVP_MD_CTX */ ;
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| 23 |
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| 24 | struct evp_cipher_ctx_st {
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| 25 | const EVP_CIPHER *cipher;
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| 26 | ENGINE *engine; /* functional reference if 'cipher' is
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| 27 | * ENGINE-provided */
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| 28 | int encrypt; /* encrypt or decrypt */
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| 29 | int buf_len; /* number we have left */
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| 30 | unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */
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| 31 | unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */
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| 32 | unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */
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| 33 | int num; /* used by cfb/ofb/ctr mode */
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| 34 | /* FIXME: Should this even exist? It appears unused */
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| 35 | void *app_data; /* application stuff */
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| 36 | int key_len; /* May change for variable length cipher */
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| 37 | unsigned long flags; /* Various flags */
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| 38 | void *cipher_data; /* per EVP data */
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| 39 | int final_used;
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| 40 | int block_mask;
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| 41 | unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */
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| 42 | } /* EVP_CIPHER_CTX */ ;
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| 43 |
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| 44 | int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass,
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| 45 | int passlen, ASN1_TYPE *param,
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| 46 | const EVP_CIPHER *c, const EVP_MD *md,
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| 47 | int en_de);
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| 48 |
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| 49 | struct evp_Encode_Ctx_st {
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| 50 | /* number saved in a partial encode/decode */
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| 51 | int num;
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| 52 | /*
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| 53 | * The length is either the output line length (in input bytes) or the
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| 54 | * shortest input line length that is ok. Once decoding begins, the
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| 55 | * length is adjusted up each time a longer line is decoded
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| 56 | */
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| 57 | int length;
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| 58 | /* data to encode */
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| 59 | unsigned char enc_data[80];
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| 60 | /* number read on current line */
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| 61 | int line_num;
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| 62 | int expect_nl;
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| 63 | };
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| 64 |
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| 65 | typedef struct evp_pbe_st EVP_PBE_CTL;
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| 66 | DEFINE_STACK_OF(EVP_PBE_CTL)
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| 67 |
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| 68 | int is_partially_overlapping(const void *ptr1, const void *ptr2, int len);
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