9 #define lenof(x) ( (sizeof((x))) / (sizeof(*(x))))
12 #define SSH_CIPHER_IDEA 1
13 #define SSH_CIPHER_DES 2
14 #define SSH_CIPHER_3DES 3
15 #define SSH_CIPHER_BLOWFISH 6
23 #ifndef BIGNUM_INTERNAL
31 unsigned long exponent;
32 unsigned char *modulus;
36 Bignum private_exponent;
47 int makekey(unsigned char *data, struct RSAKey *result,
48 unsigned char **keystr, int order);
49 int makeprivate(unsigned char *data, struct RSAKey *result);
50 void rsaencrypt(unsigned char *data, int length, struct RSAKey *key);
51 Bignum rsadecrypt(Bignum input, struct RSAKey *key);
52 void rsasign(unsigned char *data, int length, struct RSAKey *key);
53 void rsasanitise(struct RSAKey *key);
54 int rsastr_len(struct RSAKey *key);
55 void rsastr_fmt(char *str, struct RSAKey *key);
56 void rsa_fingerprint(char *str, int len, struct RSAKey *key);
57 void freersakey(struct RSAKey *key);
59 typedef unsigned int word32;
60 typedef unsigned int uint32;
62 unsigned long crc32(const void *s, size_t len);
73 unsigned char block[64];
79 void MD5Init(struct MD5Context *context);
80 void MD5Update(struct MD5Context *context, unsigned char const *buf,
82 void MD5Final(unsigned char digest[16], struct MD5Context *context);
86 unsigned char block[64];
91 void SHA_Init(SHA_State *s);
92 void SHA_Bytes(SHA_State *s, void *p, int len);
93 void SHA_Final(SHA_State *s, unsigned char *output);
94 void SHA_Simple(void *p, int len, unsigned char *output);
97 void (*sesskey)(unsigned char *key); /* for ssh 1 */
98 void (*setcsiv)(unsigned char *key); /* for ssh 2 */
99 void (*setcskey)(unsigned char *key); /* for ssh 2 */
100 void (*setsciv)(unsigned char *key); /* for ssh 2 */
101 void (*setsckey)(unsigned char *key); /* for ssh 2 */
102 void (*encrypt)(unsigned char *blk, int len);
103 void (*decrypt)(unsigned char *blk, int len);
109 void (*setcskey)(unsigned char *key);
110 void (*setsckey)(unsigned char *key);
111 void (*generate)(unsigned char *blk, int len, unsigned long seq);
112 int (*verify)(unsigned char *blk, int len, unsigned long seq);
119 * Plugging in another KEX algorithm requires structural chaos,
120 * so it's hard to abstract them into nice little structures
121 * like this. Hence, for the moment, this is just a
122 * placeholder. I claim justification in the fact that OpenSSH
129 void *(*newkey)(char *data, int len);
130 void (*freekey)(void *key);
131 char *(*fmtkey)(void *key);
132 char *(*fingerprint)(void *key);
133 int (*verifysig)(void *key, char *sig, int siglen,
134 char *data, int datalen);
135 int (*sign)(void *key, char *sig, int siglen,
136 char *data, int datalen);
138 char *keytype; /* for host key cache */
141 struct ssh_compress {
143 void (*compress_init)(void);
144 int (*compress)(unsigned char *block, int len,
145 unsigned char **outblock, int *outlen);
146 void (*decompress_init)(void);
147 int (*decompress)(unsigned char *block, int len,
148 unsigned char **outblock, int *outlen);
152 void SHATransform(word32 *digest, word32 *data);
155 int random_byte(void);
156 void random_add_noise(void *noise, int length);
157 void random_add_heavynoise(void *noise, int length);
159 void logevent (char *);
161 Bignum copybn(Bignum b);
162 Bignum bn_power_2(int n);
163 void bn_restore_invariant(Bignum b);
164 Bignum bignum_from_short(unsigned short n);
165 void freebn(Bignum b);
166 Bignum modpow(Bignum base, Bignum exp, Bignum mod);
167 Bignum modmul(Bignum a, Bignum b, Bignum mod);
168 void decbn(Bignum n);
169 extern Bignum Zero, One;
170 Bignum bignum_from_bytes(unsigned char *data, int nbytes);
171 int ssh1_read_bignum(unsigned char *data, Bignum *result);
172 int ssh1_bignum_bitcount(Bignum bn);
173 int ssh1_bignum_length(Bignum bn);
174 int bignum_byte(Bignum bn, int i);
175 int bignum_bit(Bignum bn, int i);
176 void bignum_set_bit(Bignum bn, int i, int value);
177 int ssh1_write_bignum(void *data, Bignum bn);
178 Bignum biggcd(Bignum a, Bignum b);
179 unsigned short bignum_mod_short(Bignum number, unsigned short modulus);
180 Bignum bignum_add_long(Bignum number, unsigned long addend);
181 Bignum bigmul(Bignum a, Bignum b);
182 Bignum modinv(Bignum number, Bignum modulus);
183 Bignum bignum_bitmask(Bignum number);
184 Bignum bignum_rshift(Bignum number, int shift);
185 int bignum_cmp(Bignum a, Bignum b);
186 char *bignum_decimal(Bignum x);
188 void dh_setup_group1(void);
189 void dh_cleanup(void);
190 Bignum dh_create_e(void);
191 Bignum dh_find_K(Bignum f);
193 int loadrsakey(char *filename, struct RSAKey *key, struct RSAAux *aux,
195 int rsakey_encrypted(char *filename, char **comment);
197 int saversakey(char *filename, struct RSAKey *key, struct RSAAux *aux,
200 void des3_decrypt_pubkey(unsigned char *key,
201 unsigned char *blk, int len);
202 void des3_encrypt_pubkey(unsigned char *key,
203 unsigned char *blk, int len);
206 * For progress updates in the key generation utility.
208 typedef void (*progfn_t)(void *param, int phase, int progress);
210 int rsa_generate(struct RSAKey *key, struct RSAAux *aux, int bits,
211 progfn_t pfn, void *pfnparam);
212 Bignum primegen(int bits, int modulus, int residue,
213 int phase, progfn_t pfn, void *pfnparam);
218 void zlib_compress_init(void);
219 void zlib_decompress_init(void);
220 int zlib_compress_block(unsigned char *block, int len,
221 unsigned char **outblock, int *outlen);
222 int zlib_decompress_block(unsigned char *block, int len,
223 unsigned char **outblock, int *outlen);