projects / thirdparty / openssl.git / blame
| Commit | Line | Data |
|---|---|---|
| bafde183 SL |
1 | /* |
| 2 | * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved. | |
| 3 | * | |
| 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 | |
| 8 | */ | |
| 9 | ||
| 10 | /* Dispatch functions for RC4 ciphers */ | |
| 11 | ||
| 12 | #include "cipher_rc4.h" | |
| 13 | #include "internal/provider_algs.h" | |
| 14 | ||
| 15 | /* TODO (3.0) Figure out what flags are required */ | |
| 16 | #define RC4_FLAGS EVP_CIPH_FLAG_DEFAULT_ASN1 | |
| 17 | ||
| 18 | static OSSL_OP_cipher_freectx_fn rc4_freectx; | |
| 19 | static OSSL_OP_cipher_dupctx_fn rc4_dupctx; | |
| 20 | ||
| 21 | static void rc4_freectx(void *vctx) | |
| 22 | { | |
| 23 | PROV_RC4_CTX *ctx = (PROV_RC4_CTX *)vctx; | |
| 24 | ||
| 25 | OPENSSL_clear_free(ctx, sizeof(*ctx)); | |
| 26 | } | |
| 27 | ||
| 28 | static void *rc4_dupctx(void *ctx) | |
| 29 | { | |
| 30 | PROV_RC4_CTX *in = (PROV_RC4_CTX *)ctx; | |
| 31 | PROV_RC4_CTX *ret = OPENSSL_malloc(sizeof(*ret)); | |
| 32 | ||
| 33 | if (ret == NULL) { | |
| 34 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
| 35 | return NULL; | |
| 36 | } | |
| 37 | *ret = *in; | |
| 38 | ||
| 39 | return ret; | |
| 40 | } | |
| 41 | ||
| 42 | #define IMPLEMENT_cipher(alg, UCALG, flags, kbits, blkbits, ivbits, typ) \ | |
| 43 | static OSSL_OP_cipher_get_params_fn alg##_##kbits##_get_params; \ | |
| 44 | static int alg##_##kbits##_get_params(OSSL_PARAM params[]) \ | |
| 45 | { \ | |
| 46 | return cipher_generic_get_params(params, 0, flags, \ | |
| 47 | kbits, blkbits, ivbits); \ | |
| 48 | } \ | |
| 49 | static OSSL_OP_cipher_newctx_fn alg##_##kbits##_newctx; \ | |
| 50 | static void * alg##_##kbits##_newctx(void *provctx) \ | |
| 51 | { \ | |
| 52 | PROV_##UCALG##_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); \ | |
| 53 | if (ctx != NULL) { \ | |
| 54 | cipher_generic_initkey(ctx, kbits, blkbits, ivbits, 0, flags, \ | |
| 55 | PROV_CIPHER_HW_##alg(kbits), NULL); \ | |
| 56 | } \ | |
| 57 | return ctx; \ | |
| 58 | } \ | |
| 59 | const OSSL_DISPATCH alg##kbits##_functions[] = { \ | |
| 60 | { OSSL_FUNC_CIPHER_NEWCTX, \ | |
| 61 | (void (*)(void)) alg##_##kbits##_newctx }, \ | |
| 62 | { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx }, \ | |
| 63 | { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx }, \ | |
| 64 | { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))cipher_generic_einit }, \ | |
| 65 | { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))cipher_generic_dinit }, \ | |
| 66 | { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))cipher_generic_##typ##_update },\ | |
| 67 | { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))cipher_generic_##typ##_final }, \ | |
| 68 | { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))cipher_generic_cipher }, \ | |
| 69 | { OSSL_FUNC_CIPHER_GET_PARAMS, \ | |
| 70 | (void (*)(void)) alg##_##kbits##_get_params }, \ | |
| 71 | { OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \ | |
| 72 | (void (*)(void))cipher_generic_get_ctx_params }, \ | |
| 73 | { OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \ | |
| 74 | (void (*)(void))cipher_generic_set_ctx_params }, \ | |
| 75 | { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \ | |
| 76 | (void (*)(void))cipher_generic_gettable_params }, \ | |
| 77 | { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \ | |
| 78 | (void (*)(void))cipher_generic_gettable_ctx_params }, \ | |
| 79 | { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \ | |
| 80 | (void (*)(void))cipher_generic_settable_ctx_params }, \ | |
| 81 | { 0, NULL } \ | |
| 82 | }; | |
| 83 | ||
| 84 | /* rc440_functions */ | |
| 74997e7e | 85 | IMPLEMENT_cipher(rc4, RC4, EVP_CIPH_VARIABLE_LENGTH, 40, 8, 0, stream) |
| bafde183 | 86 | /* rc4128_functions */ |
| 74997e7e | 87 | IMPLEMENT_cipher(rc4, RC4, EVP_CIPH_VARIABLE_LENGTH, 128, 8, 0, stream) |