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