Git initHEAD2.0_alphamaster2.0alpha1.0_post

1 files changed, 209 insertions, 0 deletions

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+/* cipher.h
+ * Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+ *               2006 Free Software Foundation, Inc.
+ *
+ * This file is part of GNUPG.
+ *
+ * GNUPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * GNUPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+#ifndef G10_CIPHER_H
+#define G10_CIPHER_H
+
+#define DBG_CIPHER g10c_debug_mode
+
+#include "mpi.h"
+#include "../cipher/random.h"
+
+
+#define CIPHER_ALGO_NONE	 0
+#define CIPHER_ALGO_IDEA	 1
+#define CIPHER_ALGO_3DES	 2
+#define CIPHER_ALGO_CAST5	 3
+#define CIPHER_ALGO_BLOWFISH	 4  /* blowfish 128 bit key */
+/* 5 & 6 are reserved */
+#define CIPHER_ALGO_AES          7
+#define CIPHER_ALGO_AES192       8
+#define CIPHER_ALGO_AES256       9
+#define CIPHER_ALGO_TWOFISH 	10  /* twofish 256 bit */
+#define CIPHER_ALGO_DUMMY      110  /* no encryption at all */
+
+#define PUBKEY_ALGO_RSA        1
+#define PUBKEY_ALGO_RSA_E      2     /* RSA encrypt only */
+#define PUBKEY_ALGO_RSA_S      3     /* RSA sign only */
+#define PUBKEY_ALGO_ELGAMAL_E 16     /* encrypt only ElGamal (but not for v3)*/
+#define PUBKEY_ALGO_DSA       17
+#define PUBKEY_ALGO_ELGAMAL   20     /* sign and encrypt elgamal */
+
+#define PUBKEY_USAGE_SIG     1	    /* key is good for signatures */
+#define PUBKEY_USAGE_ENC     2	    /* key is good for encryption */
+#define PUBKEY_USAGE_CERT    4      /* key is also good to certify other keys*/
+#define PUBKEY_USAGE_AUTH    8      /* key is good for authentication */
+#define PUBKEY_USAGE_UNKNOWN 128    /* key has an unknown usage bit */
+
+#define DIGEST_ALGO_MD5       1
+#define DIGEST_ALGO_SHA1      2
+#define DIGEST_ALGO_RMD160    3
+/* 4, 5, 6, and 7 are reserved */
+#define DIGEST_ALGO_SHA256    8
+#define DIGEST_ALGO_SHA384    9
+#define DIGEST_ALGO_SHA512   10
+#define DIGEST_ALGO_SHA224   11
+
+#define COMPRESS_ALGO_NONE   0
+#define COMPRESS_ALGO_ZIP    1
+#define COMPRESS_ALGO_ZLIB   2
+#define COMPRESS_ALGO_BZIP2  3
+
+#define is_RSA(a)     ((a)==PUBKEY_ALGO_RSA || (a)==PUBKEY_ALGO_RSA_E \
+		       || (a)==PUBKEY_ALGO_RSA_S )
+#define is_ELGAMAL(a) ((a)==PUBKEY_ALGO_ELGAMAL_E)
+#define is_DSA(a)     ((a)==PUBKEY_ALGO_DSA)
+
+typedef struct
+{
+  int algo;
+  int keylen;
+  int algo_info_printed;
+  int use_mdc;
+  int symmetric;
+  byte key[32]; /* this is the largest used keylen (256 bit) */
+} DEK;
+
+struct cipher_handle_s;
+typedef struct cipher_handle_s *CIPHER_HANDLE;
+
+
+#define CIPHER_MODE_ECB       1
+#define CIPHER_MODE_CFB       2
+#define CIPHER_MODE_PHILS_CFB 3
+#define CIPHER_MODE_AUTO_CFB  4
+#define CIPHER_MODE_DUMMY     5  /* used with algo DUMMY for no encryption */
+#define CIPHER_MODE_CBC       6
+
+struct md_digest_list_s;
+
+struct gcry_md_context {
+    int  secure;
+    FILE  *debug;
+    int finalized;
+    struct md_digest_list_s *list;
+    int  bufcount;
+    int  bufsize;
+    byte buffer[1];
+};
+
+typedef struct gcry_md_context *MD_HANDLE;
+
+#ifndef EXTERN_UNLESS_MAIN_MODULE
+#if defined (__riscos__) && !defined (INCLUDED_BY_MAIN_MODULE)
+#define EXTERN_UNLESS_MAIN_MODULE extern
+#else
+#define EXTERN_UNLESS_MAIN_MODULE 
+#endif
+#endif
+EXTERN_UNLESS_MAIN_MODULE int g10c_debug_mode;
+EXTERN_UNLESS_MAIN_MODULE int g10_opt_verbose;
+EXTERN_UNLESS_MAIN_MODULE const char *g10_opt_homedir;
+
+
+/*-- dynload.c --*/
+void register_cipher_extension( const char *mainpgm, const char *fname );
+
+/*-- md.c --*/
+int string_to_digest_algo( const char *string );
+const char * digest_algo_to_string( int algo );
+int check_digest_algo( int algo );
+MD_HANDLE md_open( int algo, int secure );
+void md_enable( MD_HANDLE hd, int algo );
+MD_HANDLE md_copy( MD_HANDLE a );
+void md_reset( MD_HANDLE a );
+void md_close(MD_HANDLE a);
+void md_write( MD_HANDLE a, const byte *inbuf, size_t inlen);
+void md_final(MD_HANDLE a);
+byte *md_read( MD_HANDLE a, int algo );
+int md_digest( MD_HANDLE a, int algo, byte *buffer, int buflen );
+int md_get_algo( MD_HANDLE a );
+int md_algo_present( MD_HANDLE a, int algo );
+int md_digest_length( int algo );
+const byte *md_asn_oid( int algo, size_t *asnlen, size_t *mdlen );
+void md_start_debug( MD_HANDLE a, const char *suffix );
+void md_stop_debug( MD_HANDLE a );
+#define md_is_secure(a) ((a)->secure)
+#define md_putc(h,c)  \
+	    do {					    \
+		if( (h)->bufcount == (h)->bufsize )	    \
+		    md_write( (h), NULL, 0 );		    \
+		(h)->buffer[(h)->bufcount++] = (c) & 0xff;  \
+	    } while(0)
+
+void rmd160_hash_buffer (char *outbuf, const char *buffer, size_t length);
+
+
+/*-- cipher.c --*/
+int string_to_cipher_algo( const char *string );
+const char * cipher_algo_to_string( int algo );
+void disable_cipher_algo( int algo );
+int check_cipher_algo( int algo );
+unsigned cipher_get_keylen( int algo );
+unsigned cipher_get_blocksize( int algo );
+CIPHER_HANDLE cipher_open( int algo, int mode, int secure );
+void cipher_close( CIPHER_HANDLE c );
+int  cipher_setkey( CIPHER_HANDLE c, byte *key, unsigned keylen );
+void cipher_setiv( CIPHER_HANDLE c, const byte *iv, unsigned ivlen );
+void cipher_encrypt( CIPHER_HANDLE c, byte *out, byte *in, unsigned nbytes );
+void cipher_decrypt( CIPHER_HANDLE c, byte *out, byte *in, unsigned nbytes );
+void cipher_sync( CIPHER_HANDLE c );
+
+/*-- pubkey.c --*/
+#define PUBKEY_MAX_NPKEY  4
+#define PUBKEY_MAX_NSKEY  6
+#define PUBKEY_MAX_NSIG   2
+#define PUBKEY_MAX_NENC   2
+
+int string_to_pubkey_algo( const char *string );
+const char * pubkey_algo_to_string( int algo );
+void disable_pubkey_algo( int algo );
+int check_pubkey_algo( int algo );
+int check_pubkey_algo2( int algo, unsigned use );
+int pubkey_get_npkey( int algo );
+int pubkey_get_nskey( int algo );
+int pubkey_get_nsig( int algo );
+int pubkey_get_nenc( int algo );
+unsigned pubkey_nbits( int algo, MPI *pkey );
+int pubkey_generate( int algo, unsigned nbits, MPI *skey, MPI **retfactors );
+int dsa2_generate( int algo, unsigned nbits, unsigned qbits,
+		   MPI *skey, MPI **retfactors );
+int pubkey_check_secret_key( int algo, MPI *skey );
+int pubkey_encrypt( int algo, MPI *resarr, MPI data, MPI *pkey );
+int pubkey_decrypt( int algo, MPI *result, MPI *data, MPI *skey );
+int pubkey_sign( int algo, MPI *resarr, MPI hash, MPI *skey );
+int pubkey_verify( int algo, MPI hash, MPI *data, MPI *pkey );
+
+/*-- smallprime.c --*/
+extern ushort small_prime_numbers[];
+
+/*-- primegen.c --*/
+void register_primegen_progress ( void (*cb)( void *, int), void *cb_data );
+MPI generate_secret_prime( unsigned nbits );
+MPI generate_public_prime( unsigned nbits );
+MPI generate_elg_prime( int mode, unsigned pbits, unsigned qbits,
+					   MPI g, MPI **factors );
+
+/*-- elsewhere --*/
+void register_pk_dsa_progress ( void (*cb)( void *, int), void *cb_data );
+void register_pk_elg_progress ( void (*cb)( void *, int), void *cb_data );
+
+#endif /*G10_CIPHER_H*/