Where Online Learning is simpler!

The C and C++ Include Header Files

/usr/include/openssl/blowfish.h


$ cat -n /usr/include/openssl/blowfish.h

     1	/*
     2	 * Copyright 1995-2020 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	#ifndef OPENSSL_BLOWFISH_H
    11	# define OPENSSL_BLOWFISH_H
    12	# pragma once
    13	
    14	# include <openssl/macros.h>
    15	# ifndef OPENSSL_NO_DEPRECATED_3_0
    16	#  define HEADER_BLOWFISH_H
    17	# endif
    18	
    19	# include <openssl/opensslconf.h>
    20	
    21	# ifndef OPENSSL_NO_BF
    22	# include <openssl/e_os2.h>
    23	# ifdef  __cplusplus
    24	extern "C" {
    25	# endif
    26	
    27	# define BF_BLOCK        8
    28	
    29	# ifndef OPENSSL_NO_DEPRECATED_3_0
    30	
    31	#  define BF_ENCRYPT      1
    32	#  define BF_DECRYPT      0
    33	
    34	/*-
    35	 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    36	 * ! BF_LONG has to be at least 32 bits wide.                     !
    37	 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    38	 */
    39	#  define BF_LONG unsigned int
    40	
    41	#  define BF_ROUNDS       16
    42	
    43	typedef struct bf_key_st {
    44	    BF_LONG P[BF_ROUNDS + 2];
    45	    BF_LONG S[4 * 256];
    46	} BF_KEY;
    47	
    48	# endif /* OPENSSL_NO_DEPRECATED_3_0 */
    49	# ifndef OPENSSL_NO_DEPRECATED_3_0
    50	OSSL_DEPRECATEDIN_3_0 void BF_set_key(BF_KEY *key, int len,
    51	                                      const unsigned char *data);
    52	OSSL_DEPRECATEDIN_3_0 void BF_encrypt(BF_LONG *data, const BF_KEY *key);
    53	OSSL_DEPRECATEDIN_3_0 void BF_decrypt(BF_LONG *data, const BF_KEY *key);
    54	OSSL_DEPRECATEDIN_3_0 void BF_ecb_encrypt(const unsigned char *in,
    55	                                          unsigned char *out, const BF_KEY *key,
    56	                                          int enc);
    57	OSSL_DEPRECATEDIN_3_0 void BF_cbc_encrypt(const unsigned char *in,
    58	                                          unsigned char *out, long length,
    59	                                          const BF_KEY *schedule,
    60	                                          unsigned char *ivec, int enc);
    61	OSSL_DEPRECATEDIN_3_0 void BF_cfb64_encrypt(const unsigned char *in,
    62	                                            unsigned char *out,
    63	                                            long length, const BF_KEY *schedule,
    64	                                            unsigned char *ivec, int *num,
    65	                                            int enc);
    66	OSSL_DEPRECATEDIN_3_0 void BF_ofb64_encrypt(const unsigned char *in,
    67	                                            unsigned char *out,
    68	                                            long length, const BF_KEY *schedule,
    69	                                            unsigned char *ivec, int *num);
    70	OSSL_DEPRECATEDIN_3_0 const char *BF_options(void);
    71	# endif
    72	
    73	# ifdef  __cplusplus
    74	}
    75	# endif
    76	# endif
    77	
    78	#endif