| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2000-2022 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the OpenSSL license (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 |
| 8 | */ |
| 9 | |
| 10 | /* EVP_MD_CTX related stuff */ |
| 11 | |
| 12 | struct evp_md_ctx_st { |
| 13 | const EVP_MD *digest; |
| 14 | ENGINE *engine; /* functional reference if 'digest' is |
| 15 | * ENGINE-provided */ |
| 16 | unsigned long flags; |
| 17 | void *md_data; |
| 18 | /* Public key context for sign/verify */ |
| 19 | EVP_PKEY_CTX *pctx; |
| 20 | /* Update function: usually copied from EVP_MD */ |
| 21 | int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count); |
| 22 | } /* EVP_MD_CTX */ ; |
| 23 | |
| 24 | struct evp_cipher_ctx_st { |
| 25 | const EVP_CIPHER *cipher; |
| 26 | ENGINE *engine; /* functional reference if 'cipher' is |
| 27 | * ENGINE-provided */ |
| 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 */ |
| 39 | int final_used; |
| 40 | int block_mask; |
| 41 | unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */ |
| 42 | } /* EVP_CIPHER_CTX */ ; |
| 43 | |
| 44 | int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, |
| 45 | int passlen, ASN1_TYPE *param, |
| 46 | const EVP_CIPHER *c, const EVP_MD *md, |
| 47 | int en_de); |
| 48 | |
| 49 | struct evp_Encode_Ctx_st { |
| 50 | /* number saved in a partial encode/decode */ |
| 51 | int num; |
| 52 | /* |
| 53 | * The length is either the output line length (in input bytes) or the |
| 54 | * shortest input line length that is ok. Once decoding begins, the |
| 55 | * length is adjusted up each time a longer line is decoded |
| 56 | */ |
| 57 | int length; |
| 58 | /* data to encode */ |
| 59 | unsigned char enc_data[80]; |
| 60 | /* number read on current line */ |
| 61 | int line_num; |
| 62 | unsigned int flags; |
| 63 | }; |
| 64 | |
| 65 | typedef struct evp_pbe_st EVP_PBE_CTL; |
| 66 | DEFINE_STACK_OF(EVP_PBE_CTL) |
| 67 | |
| 68 | int is_partially_overlapping(const void *ptr1, const void *ptr2, size_t len); |