Category : C Source Code
Archive   : PGP20SRC.ZIP
Filename : PGP.H

 
Output of file : PGP.H contained in archive : PGP20SRC.ZIP
/*
Pretty Good(tm) Privacy - RSA public key cryptography for the masses
Written by Philip Zimmermann, Phil's Pretty Good(tm) Software.
Version 1.0 - 5 Jun 91, last revised 6 Jul 91 by PRZ

This file defines the various formats, filenames, and general control
methods used by PGP, as well as a few global switches which control
the functioning of the driver code.

*/

#include "usuals.h"
#define KEYFRAGSIZE 8 /* # of bytes in key ID modulus fragment */
#define SIZEOF_TIMESTAMP 4 /* 32-bit timestamp */

/* The maximum length of the file path for this system. Varies on UNIX
systems */

#ifndef MAX_PATH
#ifdef MSDOS
#define MAX_PATH 64
#else
#define MAX_PATH 256
#endif
#endif

#ifdef ATARI
#define sizeof(x) (int)sizeof(x)
#define fread(a,b,c,d) ((int)fread(a,b,c,d))
#endif

/*
**********************************************************************
*/

/* Cipher Type Byte (CTB) definitions follow...*/
#define CTB_DESIGNATOR 0x80
#define is_ctb(c) (((c) & CTB_DESIGNATOR)==CTB_DESIGNATOR)
#define CTB_TYPE_MASK 0x7c
#define CTB_LLEN_MASK 0x03

/* "length of length" field of packet, in bytes (1, 2, 4, 8 bytes): */
#define ctb_llength(ctb) ((int) 1 << (int) ((ctb) & CTB_LLEN_MASK))

#define is_ctb_type(ctb,type) (((ctb) & CTB_TYPE_MASK)==(4*type))
#define CTB_BYTE(type,llen) (CTB_DESIGNATOR + (4*type) + llen)

#define CTB_PKE_TYPE 1 /* packet encrypted with RSA public key */
#define CTB_SKE_TYPE 2 /* packet signed with RSA secret key */
#define CTB_MD_TYPE 3 /* message digest packet */
#define CTB_CERT_SECKEY_TYPE 5 /* secret key certificate */
#define CTB_CERT_PUBKEY_TYPE 6 /* public key certificate */
#define CTB_COMPRESSED_TYPE 8 /* compressed data packet */
#define CTB_CKE_TYPE 9 /* conventional-key-encrypted data */
#define CTB_LITERAL_TYPE 10 /* raw data with filename and mode */
#define CTB_KEYCTRL_TYPE 12 /* key control packet */
#define CTB_USERID_TYPE 13 /* user id packet */
#define CTB_COMMENT_TYPE 14 /* comment packet */

/* Unimplemented CTB packet types follow... */
/* #define CTB_EXTENDED_TYPE 15 */ /* 2-byte CTB, 256 extra CTB types */

#define CTB_PKE CTB_BYTE(CTB_PKE_TYPE,1)
/* CTB_PKE len16 keyID mpi(RSA(CONKEYPKT)) */
/* 1 2 SIZE countbytes()+2 */
#define CTB_SKE CTB_BYTE(CTB_SKE_TYPE,1)
/* CTB_SKE len16 keyID mpi(RSA(MDPKT)) */
/* 1 2 SIZE countbytes()+2 */
#define CTB_MD CTB_BYTE(CTB_MD_TYPE,0)
/* CTB_MD len8 algorithm MD timestamp */
#define CTB_CERT_SECKEY CTB_BYTE(CTB_CERT_SECKEY_TYPE,1)
/* CTB_CERT_SECKEY len16 timestamp userID mpi(n) mpi(e) mpi(d) mpi(p) mpi(q) mpi(u) crc16 */
#define CTB_CERT_PUBKEY CTB_BYTE(CTB_CERT_PUBKEY_TYPE,1)
/* CTB_CERT_PUBKEY len16 timestamp userID mpi(n) mpi(e) crc16 */

#define CTB_KEYCTRL CTB_BYTE(CTB_KEYCTRL_TYPE,0)
#define CTB_USERID CTB_BYTE(CTB_USERID_TYPE,0)

#define CTB_CKE CTB_BYTE(CTB_CKE_TYPE,3)
/* CTB_CKE ciphertext */

#define CTB_LITERAL CTB_BYTE(CTB_LITERAL_TYPE,3)
/* CTB_LITERAL data */

#define CTB_COMPRESSED CTB_BYTE(CTB_COMPRESSED_TYPE,3)
/* CTB_COMPRESSED compressedtext */

/* Public key encryption algorithm selector bytes. */
#define RSA_ALGORITHM_BYTE 1 /* use RSA */

/* Conventional encryption algorithm selector bytes. */
#define IDEA_ALGORITHM_BYTE 1 /* use the IDEA cipher */

/* Message digest algorithm selector bytes. */
#define MD5_ALGORITHM_BYTE 1 /* MD5 message digest algorithm */

/* Data compression algorithm selector bytes. */
#define ZIP2_ALGORITHM_BYTE 1 /* Zip-based deflate compression algorithm */

/* Signature classification bytes. */
#define SB_SIGNATURE_BYTE 0x00 /* Signature of a binary msg or doc */
#define SM_SIGNATURE_BYTE 0x01 /* Signature of canonical msg or doc */
#define K0_SIGNATURE_BYTE 0x10 /* Key certification, generic */
#define K1_SIGNATURE_BYTE 0x11 /* Key certification, persona */
#define K2_SIGNATURE_BYTE 0x12 /* Key certification, casual ID */
#define K3_SIGNATURE_BYTE 0x13 /* Key certification, positive ID */
#define KC_SIGNATURE_BYTE 0x20 /* Key compromise */
#define KR_SIGNATURE_BYTE 0x30 /* Key revocation */
#define TS_SIGNATURE_BYTE 0x40 /* Timestamp someone else's signature */

/* Public key encrypted data classification bytes. */
#define MD_ENCRYPTED_BYTE 1 /* Message digest is encrypted */
#define CK_ENCRYPTED_BYTE 2 /* Conventional key is encrypted */

/* Version byte for data structures created by this version of PGP */
#define VERSION_BYTE 2 /* PGP2 */

/* Values for trust bits in keycntrl packet after key packet */
#define KC_OWNERTRUST_MASK 0x07 /* Trust bits for key owner */
#define KC_OWNERTRUST_UNDEFINED 0x00
#define KC_OWNERTRUST_UNKNOWN 0x01
#define KC_OWNERTRUST_NEVER 0x02
/* 2 levels reserved */
#define KC_OWNERTRUST_USUALLY 0x05
#define KC_OWNERTRUST_ALWAYS 0x06
#define KC_OWNERTRUST_ULTIMATE 0x07 /* Only for keys in secret ring */
#define KC_BUCKSTOP 0x80 /* This key is in secret ring */
#define KC_VISITED 0x40

/* Values for trust bits in keycntrl packet after userid packet */
#define KC_LEGIT_MASK 0x03 /* Key legit bits for key */
#define KC_LEGIT_UNKNOWN 0x00
#define KC_LEGIT_UNTRUSTED 0x01
#define KC_LEGIT_MARGINAL 0x02
#define KC_LEGIT_COMPLETE 0x03
#define KC_WARNONLY 0x80

/* Values for trust bits in keycntrl packet after signature packet */
#define KC_SIGTRUST_MASK 0x07 /* Trust bits for key owner */
#define KC_SIGTRUST_UNDEFINED 0x00
#define KC_SIGTRUST_UNKNOWN 0x01
#define KC_SIGTRUST_UNTRUSTED 0x02
/* 2 levels reserved */
#define KC_SIGTRUST_MARGINAL 0x05
#define KC_SIGTRUST_COMPLETE 0x06
#define KC_SIGTRUST_ULTIMATE 0x07
#define KC_CONTIG 0x80 /* This sig is on a cert. path */

#define MAINT_CHECK 0x01
#define MAINT_VERBOSE 0x02
#define MAINT_SILENT 0x04

#define is_secret_key(ctb) is_ctb_type(ctb,CTB_CERT_SECKEY_TYPE)

#define MAX_SIGCERT_LENGTH (1+2 + KEYFRAGSIZE + 2+MAX_BYTE_PRECISION)

#define MAX_KEYCERT_LENGTH (1+2+4+256 + 5*(2+MAX_BYTE_PRECISION))

/* Modes for CTB_LITERAL2 packet */
#define MODE_BINARY 'b'
#define MODE_TEXT 't'

/* Define CANONICAL_TEXT for any system which normally uses CRLF's
for text separators */
#ifdef MSDOS
#define CANONICAL_TEXT
#endif /* MSDOS */

/* Prototype for the 'more' function, which blorts a file to the screen with
page breaks, intelligent handling of line terminators, truncation of
overly long lines, and zapping of illegal chars. Implemented in MORE.C */

int more_file(char *fileName);

/* Prototypes for the transport armor routines */

boolean is_armor_file(char *infile);
int armor_file(char *infile, char *outfile, char *filename);
int de_armor_file(char *infile, char *outfile, boolean *newname);

void exitPGP(int);
void user_error();

/* Global filenames and system-wide file extensions... */
extern char CTX_EXTENSION[];
extern char PGP_EXTENSION[];
extern char ASC_EXTENSION[];
extern char SIG_EXTENSION[];
extern char BAK_EXTENSION[];
extern char SCRATCH_KEYRING_FILENAME[]; /* gets modified */
extern char CONSOLE_FILENAME[];
extern char SCRATCH_KEYRING_PATH[MAX_PATH];
extern char rel_version[];
extern char rel_date[];

/* These files use the environmental variable PGPPATH as a default path: */
extern char PUBLIC_KEYRING_FILENAME[32];
extern char SECRET_KEYRING_FILENAME[32];
extern char RANDSEED_FILENAME[32];

/* Variables which are global across the driver code */
extern boolean filter_mode;
extern FILE *pgpout; /* FILE structure for routine output */

/* Variables settable by config.pgp and referenced in config.c ... */
extern char language[]; /* foreign language prefix code for language.pgp file */
extern char charset[];
/* my_name is substring of default userid for secret key to make signatures */
extern char my_name[];
extern char tmpdir[]; /* directory for temp files, usually RAMdisk */
extern char floppyring[]; /* for comparing secret keys with backup on floppy */
extern char lit_mode; /* text or binary mode for literal packet */
extern boolean emit_radix_64;
extern boolean showpass;
extern boolean keepctx;
extern boolean verbose; /* display maximum information */
extern boolean compress_enabled; /* attempt compression before encryption */
extern long timeshift; /* seconds from GMT timezone */
extern int pem_lines;
extern int marg_min; /* number of marginally trusted signatures needed to
make a key fully-legit */
extern int compl_min; /* number of fully trusted signatures needed */
extern int max_cert_depth;
extern char pager[]; /* file lister command */

extern char trust_lst[8][16];



  3 Responses to “Category : C Source Code
Archive   : PGP20SRC.ZIP
Filename : PGP.H

  1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/