mirror of
https://github.com/openssl/openssl.git
synced 2024-12-27 06:21:43 +08:00
33388b44b6
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11616)
89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
/*
|
|
* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (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
|
|
*/
|
|
|
|
/*
|
|
* RC4 low level APIs are deprecated for public use, but still ok for internal
|
|
* use.
|
|
*/
|
|
#include "internal/deprecated.h"
|
|
|
|
#include <stdio.h>
|
|
#include "internal/cryptlib.h"
|
|
|
|
#ifndef OPENSSL_NO_RC4
|
|
|
|
# include <openssl/evp.h>
|
|
# include <openssl/objects.h>
|
|
# include <openssl/rc4.h>
|
|
|
|
# include "crypto/evp.h"
|
|
|
|
typedef struct {
|
|
RC4_KEY ks; /* working key */
|
|
} EVP_RC4_KEY;
|
|
|
|
# define data(ctx) ((EVP_RC4_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx))
|
|
|
|
static int rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc);
|
|
static int rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t inl);
|
|
static const EVP_CIPHER r4_cipher = {
|
|
NID_rc4,
|
|
1, EVP_RC4_KEY_SIZE, 0,
|
|
EVP_CIPH_VARIABLE_LENGTH,
|
|
rc4_init_key,
|
|
rc4_cipher,
|
|
NULL,
|
|
sizeof(EVP_RC4_KEY),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
static const EVP_CIPHER r4_40_cipher = {
|
|
NID_rc4_40,
|
|
1, 5 /* 40 bit */ , 0,
|
|
EVP_CIPH_VARIABLE_LENGTH,
|
|
rc4_init_key,
|
|
rc4_cipher,
|
|
NULL,
|
|
sizeof(EVP_RC4_KEY),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
const EVP_CIPHER *EVP_rc4(void)
|
|
{
|
|
return &r4_cipher;
|
|
}
|
|
|
|
const EVP_CIPHER *EVP_rc4_40(void)
|
|
{
|
|
return &r4_40_cipher;
|
|
}
|
|
|
|
static int rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
RC4_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
|
|
return 1;
|
|
}
|
|
|
|
static int rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t inl)
|
|
{
|
|
RC4(&data(ctx)->ks, inl, in, out);
|
|
return 1;
|
|
}
|
|
#endif
|