7 #define lenof(x) ( (sizeof((x))) / (sizeof(*(x))))
10 #define SSH_CIPHER_IDEA 1
11 #define SSH_CIPHER_DES 2
12 #define SSH_CIPHER_3DES 3
13 #define SSH_CIPHER_BLOWFISH 6
22 * A Bignum is stored as a sequence of `unsigned short' words. The
23 * first tells how many remain; the remaining ones are digits, LS
26 typedef unsigned short *Bignum;
32 unsigned long exponent;
33 unsigned char *modulus;
37 Bignum private_exponent;
41 int makekey(unsigned char *data, struct RSAKey *result,
42 unsigned char **keystr, int order);
43 int makeprivate(unsigned char *data, struct RSAKey *result);
44 void rsaencrypt(unsigned char *data, int length, struct RSAKey *key);
45 Bignum rsadecrypt(Bignum input, struct RSAKey *key);
46 void rsasign(unsigned char *data, int length, struct RSAKey *key);
47 void rsasanitise(struct RSAKey *key);
48 int rsastr_len(struct RSAKey *key);
49 void rsastr_fmt(char *str, struct RSAKey *key);
51 typedef unsigned int word32;
52 typedef unsigned int uint32;
54 unsigned long crc32(const void *s, size_t len);
65 unsigned char block[64];
71 void MD5Init(struct MD5Context *context);
72 void MD5Update(struct MD5Context *context, unsigned char const *buf,
74 void MD5Final(unsigned char digest[16], struct MD5Context *context);
78 unsigned char block[64];
83 void SHA_Init(SHA_State *s);
84 void SHA_Bytes(SHA_State *s, void *p, int len);
85 void SHA_Final(SHA_State *s, unsigned char *output);
86 void SHA_Simple(void *p, int len, unsigned char *output);
89 void (*sesskey)(unsigned char *key); /* for ssh 1 */
90 void (*setcsiv)(unsigned char *key); /* for ssh 2 */
91 void (*setcskey)(unsigned char *key); /* for ssh 2 */
92 void (*setsciv)(unsigned char *key); /* for ssh 2 */
93 void (*setsckey)(unsigned char *key); /* for ssh 2 */
94 void (*encrypt)(unsigned char *blk, int len);
95 void (*decrypt)(unsigned char *blk, int len);
101 void (*setcskey)(unsigned char *key);
102 void (*setsckey)(unsigned char *key);
103 void (*generate)(unsigned char *blk, int len, unsigned long seq);
104 int (*verify)(unsigned char *blk, int len, unsigned long seq);
111 * Plugging in another KEX algorithm requires structural chaos,
112 * so it's hard to abstract them into nice little structures
113 * like this. Hence, for the moment, this is just a
114 * placeholder. I claim justification in the fact that OpenSSH
121 void (*setkey)(char *data, int len);
122 char *(*fmtkey)(void);
123 int (*verifysig)(char *sig, int siglen, char *data, int datalen);
127 struct ssh_compress {
132 void SHATransform(word32 *digest, word32 *data);
135 int random_byte(void);
136 void random_add_noise(void *noise, int length);
138 void logevent (char *);
140 Bignum newbn(int length);
141 Bignum copybn(Bignum b);
142 void freebn(Bignum b);
143 void modpow(Bignum base, Bignum exp, Bignum mod, Bignum result);
144 void modmul(Bignum a, Bignum b, Bignum mod, Bignum result);
145 void decbn(Bignum n);
146 extern Bignum Zero, One;
147 int ssh1_read_bignum(unsigned char *data, Bignum *result);
149 Bignum dh_create_e(void);
150 Bignum dh_find_K(Bignum f);
152 int loadrsakey(char *filename, struct RSAKey *key, char *passphrase);
153 int rsakey_encrypted(char *filename);
155 void des3_decrypt_pubkey(unsigned char *key,
156 unsigned char *blk, int len);