ref: a7f5ecaf636e38f407c951d0e86dcc4c4f424bd6
dir: /sys/src/ape/lib/auth/authsrv.h/
enum
{
ANAMELEN= 28, /* name max size in previous proto */
AERRLEN= 64, /* errstr max size in previous proto */
DOMLEN= 48, /* authentication domain name length */
DESKEYLEN= 7, /* encrypt/decrypt des key length */
AESKEYLEN= 16, /* encrypt/decrypt aes key length */
CHALLEN= 8, /* plan9 sk1 challenge length */
NETCHLEN= 16, /* max network challenge length (used in AS protocol) */
CONFIGLEN= 14,
PASSWDLEN= 28,
SECRETLEN= 32, /* secret max size */
NONCELEN= 32,
KEYDBOFF= 8, /* bytes of random data at key file's start */
OKEYDBLEN= ANAMELEN+DESKEYLEN+4+2, /* old key file entry length */
KEYDBLEN= OKEYDBLEN+SECRETLEN, /* key file entry length */
OMD5LEN= 16,
/* AuthPAK constants */
PAKKEYLEN= 32,
PAKSLEN= (448+7)/8, /* ed448 scalar */
PAKPLEN= 4*PAKSLEN, /* point in extended format X,Y,Z,T */
PAKHASHLEN= 2*PAKPLEN, /* hashed points PM,PN */
PAKXLEN= PAKSLEN, /* random scalar secret key */
PAKYLEN= PAKSLEN, /* decaf encoded public key */
};
typedef struct Authkey Authkey;
struct Authkey
{
char des[DESKEYLEN]; /* DES key from password */
uchar aes[AESKEYLEN]; /* AES key from password */
uchar pakkey[PAKKEYLEN]; /* shared key from AuthPAK exchange (see authpak_finish()) */
uchar pakhash[PAKHASHLEN]; /* secret hash from AES key and user name (see authpak_hash()) */
};
/*
* convert ascii password to auth key
*/
extern void passtokey(Authkey*, char*);
extern void passtodeskey(char key[DESKEYLEN], char *p);
extern void passtoaeskey(uchar key[AESKEYLEN], char *p);