/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #ifndef OPENSSL_HEADER_DES_H #define OPENSSL_HEADER_DES_H #include <openssl_grpc/base.h> #if defined(__cplusplus) extern "C" { #endif // DES. // // This module is deprecated and retained for legacy reasons only. It is slow // and may leak key material with timing or cache side channels. Moreover, // single-keyed DES is broken and can be brute-forced in under a day. // // Use a modern cipher, such as AES-GCM or ChaCha20-Poly1305, instead. typedef struct DES_cblock_st { uint8_t bytes[8]; } DES_cblock; typedef struct DES_ks { uint32_t subkeys[16][2]; } DES_key_schedule; #define DES_KEY_SZ (sizeof(DES_cblock)) #define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) #define DES_ENCRYPT 1 #define DES_DECRYPT 0 #define DES_CBC_MODE 0 #define DES_PCBC_MODE 1 // DES_set_key performs a key schedule and initialises |schedule| with |key|. OPENSSL_EXPORT void DES_set_key(const DES_cblock *key, DES_key_schedule *schedule); // DES_set_odd_parity sets the parity bits (the least-significant bits in each // byte) of |key| given the other bits in each byte. OPENSSL_EXPORT void DES_set_odd_parity(DES_cblock *key); // DES_ecb_encrypt encrypts (or decrypts, if |is_encrypt| is |DES_DECRYPT|) a // single DES block (8 bytes) from in to out, using the key configured in // |schedule|. OPENSSL_EXPORT void DES_ecb_encrypt(const DES_cblock *in, DES_cblock *out, const DES_key_schedule *schedule, int is_encrypt); // DES_ncbc_encrypt encrypts (or decrypts, if |enc| is |DES_DECRYPT|) |len| // bytes from |in| to |out| with DES in CBC mode. OPENSSL_EXPORT void DES_ncbc_encrypt(const uint8_t *in, uint8_t *out, size_t len, const DES_key_schedule *schedule, DES_cblock *ivec, int enc); // DES_ecb3_encrypt encrypts (or decrypts, if |enc| is |DES_DECRYPT|) a single // block (8 bytes) of data from |input| to |output| using 3DES. OPENSSL_EXPORT void DES_ecb3_encrypt(const DES_cblock *input, DES_cblock *output, const DES_key_schedule *ks1, const DES_key_schedule *ks2, const DES_key_schedule *ks3, int enc); // DES_ede3_cbc_encrypt encrypts (or decrypts, if |enc| is |DES_DECRYPT|) |len| // bytes from |in| to |out| with 3DES in CBC mode. 3DES uses three keys, thus // the function takes three different |DES_key_schedule|s. OPENSSL_EXPORT void DES_ede3_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len, const DES_key_schedule *ks1, const DES_key_schedule *ks2, const DES_key_schedule *ks3, DES_cblock *ivec, int enc); // DES_ede2_cbc_encrypt encrypts (or decrypts, if |enc| is |DES_DECRYPT|) |len| // bytes from |in| to |out| with 3DES in CBC mode. With this keying option, the // first and third 3DES keys are identical. Thus, this function takes only two // different |DES_key_schedule|s. OPENSSL_EXPORT void DES_ede2_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len, const DES_key_schedule *ks1, const DES_key_schedule *ks2, DES_cblock *ivec, int enc); // Deprecated functions. // DES_set_key_unchecked calls |DES_set_key|. OPENSSL_EXPORT void DES_set_key_unchecked(const DES_cblock *key, DES_key_schedule *schedule); OPENSSL_EXPORT void DES_ede3_cfb64_encrypt(const uint8_t *in, uint8_t *out, long length, DES_key_schedule *ks1, DES_key_schedule *ks2, DES_key_schedule *ks3, DES_cblock *ivec, int *num, int enc); OPENSSL_EXPORT void DES_ede3_cfb_encrypt(const uint8_t *in, uint8_t *out, int numbits, long length, DES_key_schedule *ks1, DES_key_schedule *ks2, DES_key_schedule *ks3, DES_cblock *ivec, int enc); // Private functions. // // These functions are only exported for use in |decrepit|. OPENSSL_EXPORT void DES_decrypt3(uint32_t *data, const DES_key_schedule *ks1, const DES_key_schedule *ks2, const DES_key_schedule *ks3); OPENSSL_EXPORT void DES_encrypt3(uint32_t *data, const DES_key_schedule *ks1, const DES_key_schedule *ks2, const DES_key_schedule *ks3); #if defined(__cplusplus) } // extern C #endif #endif // OPENSSL_HEADER_DES_H