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1.1.1.2 root 1: /*
2: Pretty Good(tm) Privacy - RSA public key cryptography for the masses
3: Written by Philip Zimmermann, Phil's Pretty Good(tm) Software.
4: Version 1.0 - 5 Jun 91, last revised 6 Jul 91 by PRZ
5:
6: This file defines the various formats, filenames, and general control
7: methods used by PGP, as well as a few global switches which control
8: the functioning of the driver code.
9:
10: */
11:
12: #include "usuals.h"
1.1.1.3 ! root 13: #include "more.h"
! 14: #include "armor.h"
! 15:
1.1.1.2 root 16: #define KEYFRAGSIZE 8 /* # of bytes in key ID modulus fragment */
17: #define SIZEOF_TIMESTAMP 4 /* 32-bit timestamp */
18:
19: /* The maximum length of the file path for this system. Varies on UNIX
20: systems */
21:
22: #ifndef MAX_PATH
23: #ifdef MSDOS
24: #define MAX_PATH 64
25: #else
26: #define MAX_PATH 256
27: #endif
28: #endif
29:
30: #ifdef ATARI
31: #define sizeof(x) (int)sizeof(x)
32: #define fread(a,b,c,d) ((int)fread(a,b,c,d))
33: #endif
34:
35: /*
36: **********************************************************************
37: */
38:
39: /* Cipher Type Byte (CTB) definitions follow...*/
40: #define CTB_DESIGNATOR 0x80
41: #define is_ctb(c) (((c) & CTB_DESIGNATOR)==CTB_DESIGNATOR)
42: #define CTB_TYPE_MASK 0x7c
43: #define CTB_LLEN_MASK 0x03
44:
45: /* "length of length" field of packet, in bytes (1, 2, 4, 8 bytes): */
46: #define ctb_llength(ctb) ((int) 1 << (int) ((ctb) & CTB_LLEN_MASK))
47:
48: #define is_ctb_type(ctb,type) (((ctb) & CTB_TYPE_MASK)==(4*type))
49: #define CTB_BYTE(type,llen) (CTB_DESIGNATOR + (4*type) + llen)
50:
51: #define CTB_PKE_TYPE 1 /* packet encrypted with RSA public key */
52: #define CTB_SKE_TYPE 2 /* packet signed with RSA secret key */
53: #define CTB_MD_TYPE 3 /* message digest packet */
54: #define CTB_CERT_SECKEY_TYPE 5 /* secret key certificate */
55: #define CTB_CERT_PUBKEY_TYPE 6 /* public key certificate */
56: #define CTB_COMPRESSED_TYPE 8 /* compressed data packet */
57: #define CTB_CKE_TYPE 9 /* conventional-key-encrypted data */
58: #define CTB_LITERAL_TYPE 10 /* raw data with filename and mode */
59: #define CTB_LITERAL2_TYPE 11 /* Fixed literal packet */
60: #define CTB_KEYCTRL_TYPE 12 /* key control packet */
61: #define CTB_USERID_TYPE 13 /* user id packet */
62: #define CTB_COMMENT_TYPE 14 /* comment packet */
63:
64: /* Unimplemented CTB packet types follow... */
65: /* #define CTB_EXTENDED_TYPE 15 */ /* 2-byte CTB, 256 extra CTB types */
66:
67: #define CTB_PKE CTB_BYTE(CTB_PKE_TYPE,1)
68: /* CTB_PKE len16 keyID mpi(RSA(CONKEYPKT)) */
69: /* 1 2 SIZE countbytes()+2 */
70: #define CTB_SKE CTB_BYTE(CTB_SKE_TYPE,1)
71: /* CTB_SKE len16 keyID mpi(RSA(MDPKT)) */
72: /* 1 2 SIZE countbytes()+2 */
73: #define CTB_MD CTB_BYTE(CTB_MD_TYPE,0)
74: /* CTB_MD len8 algorithm MD timestamp */
75: #define CTB_CERT_SECKEY CTB_BYTE(CTB_CERT_SECKEY_TYPE,1)
76: /* CTB_CERT_SECKEY len16 timestamp userID mpi(n) mpi(e) mpi(d) mpi(p) mpi(q) mpi(u) crc16 */
77: #define CTB_CERT_PUBKEY CTB_BYTE(CTB_CERT_PUBKEY_TYPE,1)
78: /* CTB_CERT_PUBKEY len16 timestamp userID mpi(n) mpi(e) crc16 */
79:
80: #define CTB_KEYCTRL CTB_BYTE(CTB_KEYCTRL_TYPE,0)
81: #define CTB_USERID CTB_BYTE(CTB_USERID_TYPE,0)
82:
83: #define CTB_CKE CTB_BYTE(CTB_CKE_TYPE,3)
84: /* CTB_CKE ciphertext */
85:
86: #define CTB_LITERAL CTB_BYTE(CTB_LITERAL_TYPE,3)
87: #define CTB_LITERAL2 CTB_BYTE(CTB_LITERAL_TYPE,3)
88: /* CTB_LITERAL data */
89:
90: #define CTB_COMPRESSED CTB_BYTE(CTB_COMPRESSED_TYPE,3)
91: /* CTB_COMPRESSED compressedtext */
92:
93: /* Public key encryption algorithm selector bytes. */
94: #define RSA_ALGORITHM_BYTE 1 /* use RSA */
95:
96: /* Conventional encryption algorithm selector bytes. */
97: #define IDEA_ALGORITHM_BYTE 1 /* use the IDEA cipher */
98:
99: /* Message digest algorithm selector bytes. */
100: #define MD5_ALGORITHM_BYTE 1 /* MD5 message digest algorithm */
101:
102: /* Data compression algorithm selector bytes. */
103: #define ZIP2_ALGORITHM_BYTE 1 /* Zip-based deflate compression algorithm */
104:
105: /* Signature classification bytes. */
106: #define SB_SIGNATURE_BYTE 0x00 /* Signature of a binary msg or doc */
107: #define SM_SIGNATURE_BYTE 0x01 /* Signature of canonical msg or doc */
108: #define K0_SIGNATURE_BYTE 0x10 /* Key certification, generic */
109: #define K1_SIGNATURE_BYTE 0x11 /* Key certification, persona */
110: #define K2_SIGNATURE_BYTE 0x12 /* Key certification, casual ID */
111: #define K3_SIGNATURE_BYTE 0x13 /* Key certification, positive ID */
112: #define KC_SIGNATURE_BYTE 0x20 /* Key compromise */
113: #define KR_SIGNATURE_BYTE 0x30 /* Key revocation */
114: #define TS_SIGNATURE_BYTE 0x40 /* Timestamp someone else's signature */
115:
116: /* Public key encrypted data classification bytes. */
117: #define MD_ENCRYPTED_BYTE 1 /* Message digest is encrypted */
118: #define CK_ENCRYPTED_BYTE 2 /* Conventional key is encrypted */
119:
120: /* Version byte for data structures created by this version of PGP */
121: #define VERSION_BYTE 2 /* PGP2 */
122:
123: /* Values for trust bits in keycntrl packet after key packet */
124: #define KC_OWNERTRUST_MASK 0x07 /* Trust bits for key owner */
125: #define KC_OWNERTRUST_UNDEFINED 0x00
126: #define KC_OWNERTRUST_UNKNOWN 0x01
127: #define KC_OWNERTRUST_NEVER 0x02
128: /* 2 levels reserved */
129: #define KC_OWNERTRUST_USUALLY 0x05
130: #define KC_OWNERTRUST_ALWAYS 0x06
131: #define KC_OWNERTRUST_ULTIMATE 0x07 /* Only for keys in secret ring */
132: #define KC_BUCKSTOP 0x80 /* This key is in secret ring */
133: #define KC_VISITED 0x40
1.1.1.3 ! root 134: #define KC_DISABLED 0x20 /* key is disabled */
1.1.1.2 root 135:
136: /* Values for trust bits in keycntrl packet after userid packet */
137: #define KC_LEGIT_MASK 0x03 /* Key legit bits for key */
138: #define KC_LEGIT_UNKNOWN 0x00
139: #define KC_LEGIT_UNTRUSTED 0x01
140: #define KC_LEGIT_MARGINAL 0x02
141: #define KC_LEGIT_COMPLETE 0x03
142: #define KC_WARNONLY 0x80
143:
144: /* Values for trust bits in keycntrl packet after signature packet */
145: #define KC_SIGTRUST_MASK 0x07 /* Trust bits for key owner */
146: #define KC_SIGTRUST_UNDEFINED 0x00
147: #define KC_SIGTRUST_UNKNOWN 0x01
148: #define KC_SIGTRUST_UNTRUSTED 0x02
149: /* 2 levels reserved */
150: #define KC_SIGTRUST_MARGINAL 0x05
151: #define KC_SIGTRUST_COMPLETE 0x06
152: #define KC_SIGTRUST_ULTIMATE 0x07
1.1.1.3 ! root 153: #define KC_SIG_CHECKED 0x40 /* This sig has been checked */
1.1.1.2 root 154: #define KC_CONTIG 0x80 /* This sig is on a cert. path */
155:
156: #define is_secret_key(ctb) is_ctb_type(ctb,CTB_CERT_SECKEY_TYPE)
157:
158: #define MPILEN (2+MAX_BYTE_PRECISION)
159: #define MAX_SIGCERT_LENGTH (1+2+1 +1+7 +KEYFRAGSIZE+2+2+MPILEN)
160: #define MAX_KEYCERT_LENGTH (1+2+1+4+2+1 +(2*MPILEN) +1+8 +(4*MPILEN) +2)
161:
162: /* Modes for CTB_LITERAL2 packet */
163: #define MODE_BINARY 'b'
164: #define MODE_TEXT 't'
165: #define MODE_LOCAL 'l'
166:
167: /* Define CANONICAL_TEXT for any system which normally uses CRLF's
168: for text separators */
169: #ifdef MSDOS
170: #define CANONICAL_TEXT
171: #endif /* MSDOS */
172:
173: /* Prototype for the 'more' function, which blorts a file to the screen with
174: page breaks, intelligent handling of line terminators, truncation of
175: overly long lines, and zapping of illegal chars. Implemented in MORE.C */
176:
177: int more_file(char *fileName);
178:
179: /* Prototypes for the transport armor routines */
180:
181: boolean is_armor_file(char *infile, long startline);
182: int armor_file(char *infile, char *outfile, char *filename, char *clearname);
183: int de_armor_file(char *infile, char *outfile, long *curline);
184:
1.1.1.3 ! root 185: void user_error(void);
1.1.1.2 root 186:
187: /* Global filenames and system-wide file extensions... */
188: extern char PGP_EXTENSION[];
189: extern char ASC_EXTENSION[];
190: extern char SIG_EXTENSION[];
191: extern char BAK_EXTENSION[];
192: extern char CONSOLE_FILENAME[];
193: extern char rel_version[];
194:
195: /* These files use the environmental variable PGPPATH as a default path: */
196: extern char PUBLIC_KEYRING_FILENAME[32];
197: extern char SECRET_KEYRING_FILENAME[32];
198: extern char RANDSEED_FILENAME[32];
199:
200: /* Variables which are global across the driver code */
201: extern boolean filter_mode;
1.1.1.3 ! root 202: extern boolean moreflag;
1.1.1.2 root 203: extern FILE *pgpout; /* FILE structure for routine output */
204:
205: /* Variables settable by config.pgp and referenced in config.c ... */
206: extern char language[]; /* foreign language prefix code for language.pgp file */
207: extern char charset[];
208: /* my_name is substring of default userid for secret key to make signatures */
209: extern char my_name[];
210: extern char floppyring[]; /* for comparing secret keys with backup on floppy */
1.1.1.3 ! root 211: extern char literal_mode; /* text or binary mode for literal packet */
1.1.1.2 root 212: extern boolean emit_radix_64;
213: extern boolean showpass;
214: extern boolean keepctx;
215: extern boolean verbose; /* display maximum information */
216: extern boolean compress_enabled; /* attempt compression before encryption */
217: extern boolean clear_signatures;
1.1.1.3 ! root 218: extern boolean encrypt_to_self; /* Should I encrypt to myself? */
! 219: extern boolean batchmode; /* for batch processing */
! 220: extern boolean quietmode; /* less verbose */
! 221: extern boolean force_flag; /* overwrite existing file without asking */
! 222: /* Ask for each key separately if it should be added to the keyring */
! 223: extern boolean interactive_add;
1.1.1.2 root 224: extern long timeshift; /* seconds from GMT timezone */
1.1.1.3 ! root 225: extern boolean signature_checked;
1.1.1.2 root 226: extern int pem_lines;
227: extern int marg_min; /* number of marginally trusted signatures needed to
228: make a key fully-legit */
229: extern int compl_min; /* number of fully trusted signatures needed */
230: extern int max_cert_depth;
231: extern char pager[]; /* file lister command */
1.1.1.3 ! root 232: extern char password[256];
! 233: extern boolean strip_spaces;
1.1.1.2 root 234:
235: #ifdef VMS
236: /*
237: * FDL Support Prototypes, Currently Used Only In SYSTEM.C and CRYPTO.C
238: */
239:
240: int fdl_generate(char *in_file, char **fdl, short *len);
241: void *fdl_create( char *fdl, short len, char *outfile, char *preserved_name);
242: int fdl_copyfile2bin(FILE *f, void *rab, word32 longcount);
243: void fdl_close( void *rab);
244: #endif /* VMS */
1.1.1.3 ! root 245:
! 246: extern int compressSignature(byte *header);
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