X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/d39f364a883ab4a791939320caa50761cd1e068f..3eca8453d8e161a73759d96f3965a41f83dbe323:/ssh.h?ds=sidebyside diff --git a/ssh.h b/ssh.h index 84e3c205..c3233fe9 100644 --- a/ssh.h +++ b/ssh.h @@ -18,6 +18,13 @@ #define APIEXTRA 0 #endif +/* + * A Bignum is stored as a sequence of `unsigned short' words. The + * first tells how many remain; the remaining ones are digits, LS + * first. + */ +typedef unsigned short *Bignum; + struct RSAKey { int bits; int bytes; @@ -25,14 +32,19 @@ struct RSAKey { unsigned long exponent; unsigned char *modulus; #else - void *modulus; - void *exponent; + Bignum modulus; + Bignum exponent; + Bignum private_exponent; #endif }; int makekey(unsigned char *data, struct RSAKey *result, - unsigned char **keystr); + unsigned char **keystr, int order); +int makeprivate(unsigned char *data, struct RSAKey *result); void rsaencrypt(unsigned char *data, int length, struct RSAKey *key); +Bignum rsadecrypt(Bignum input, struct RSAKey *key); +void rsasign(unsigned char *data, int length, struct RSAKey *key); +void rsasanitise(struct RSAKey *key); int rsastr_len(struct RSAKey *key); void rsastr_fmt(char *str, struct RSAKey *key); @@ -71,6 +83,7 @@ typedef struct { void SHA_Init(SHA_State *s); void SHA_Bytes(SHA_State *s, void *p, int len); void SHA_Final(SHA_State *s, unsigned char *output); +void SHA_Simple(void *p, int len, unsigned char *output); struct ssh_cipher { void (*sesskey)(unsigned char *key); /* for ssh 1 */ @@ -94,10 +107,20 @@ struct ssh_mac { }; struct ssh_kex { + /* + * Plugging in another KEX algorithm requires structural chaos, + * so it's hard to abstract them into nice little structures + * like this. Hence, for the moment, this is just a + * placeholder. I claim justification in the fact that OpenSSH + * does this too :-) + */ char *name; }; struct ssh_hostkey { + void (*setkey)(char *data, int len); + char *(*fmtkey)(void); + int (*verifysig)(char *sig, int siglen, char *data, int datalen); char *name; }; @@ -114,16 +137,20 @@ void random_add_noise(void *noise, int length); void logevent (char *); -/* - * A Bignum is stored as a sequence of `unsigned short' words. The - * first tells how many remain; the remaining ones are digits, LS - * first. - */ -typedef unsigned short *Bignum; - Bignum newbn(int length); +Bignum copybn(Bignum b); void freebn(Bignum b); void modpow(Bignum base, Bignum exp, Bignum mod, Bignum result); +void modmul(Bignum a, Bignum b, Bignum mod, Bignum result); +void decbn(Bignum n); +extern Bignum Zero, One; +int ssh1_read_bignum(unsigned char *data, Bignum *result); Bignum dh_create_e(void); Bignum dh_find_K(Bignum f); + +int loadrsakey(char *filename, struct RSAKey *key, char *passphrase); +int rsakey_encrypted(char *filename); + +void des3_decrypt_pubkey(unsigned char *key, + unsigned char *blk, int len); \ No newline at end of file