Cross Reference: /external/dropbear/libtomcrypt/src/ciphers/cast5.c

Lines Matching refs:skey
405     @param skey The key in as scheduled by this function.
409 static int _cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
411 int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
419    LTC_ARGCHK(skey != NULL);
447         skey->cast5.K[i++] = S5[GB(z, 0x8)] ^ S6[GB(z, 0x9)] ^ S7[GB(z, 0x7)] ^ S8[GB(z, 0x6)] ^ S5[GB(z, 0x2)];
448         skey->cast5.K[i++] = S5[GB(z, 0xA)] ^ S6[GB(z, 0xB)] ^ S7[GB(z, 0x5)] ^ S8[GB(z, 0x4)] ^ S6[GB(z, 0x6)];
449         skey->cast5.K[i++] = S5[GB(z, 0xC)] ^ S6[GB(z, 0xd)] ^ S7[GB(z, 0x3)] ^ S8[GB(z, 0x2)] ^ S7[GB(z, 0x9)];
450         skey->cast5.K[i++] = S5[GB(z, 0xE)] ^ S6[GB(z, 0xF)] ^ S7[GB(z, 0x1)] ^ S8[GB(z, 0x0)] ^ S8[GB(z, 0xc)];
456         skey->cast5.K[i++] = S5[GB(x, 0x3)] ^ S6[GB(x, 0x2)] ^ S7[GB(x, 0xc)] ^ S8[GB(x, 0xd)] ^ S5[GB(x, 0x8)];
457         skey->cast5.K[i++] = S5[GB(x, 0x1)] ^ S6[GB(x, 0x0)] ^ S7[GB(x, 0xe)] ^ S8[GB(x, 0xf)] ^ S6[GB(x, 0xd)];
458         skey->cast5.K[i++] = S5[GB(x, 0x7)] ^ S6[GB(x, 0x6)] ^ S7[GB(x, 0x8)] ^ S8[GB(x, 0x9)] ^ S7[GB(x, 0x3)];
459         skey->cast5.K[i++] = S5[GB(x, 0x5)] ^ S6[GB(x, 0x4)] ^ S7[GB(x, 0xa)] ^ S8[GB(x, 0xb)] ^ S8[GB(x, 0x7)];
466         skey->cast5.K[i++] = S5[GB(z, 0x3)] ^ S6[GB(z, 0x2)] ^ S7[GB(z, 0xc)] ^ S8[GB(z, 0xd)] ^ S5[GB(z, 0x9)];
467         skey->cast5.K[i++] = S5[GB(z, 0x1)] ^ S6[GB(z, 0x0)] ^ S7[GB(z, 0xe)] ^ S8[GB(z, 0xf)] ^ S6[GB(z, 0xc)];
468         skey->cast5.K[i++] = S5[GB(z, 0x7)] ^ S6[GB(z, 0x6)] ^ S7[GB(z, 0x8)] ^ S8[GB(z, 0x9)] ^ S7[GB(z, 0x2)];
469         skey->cast5.K[i++] = S5[GB(z, 0x5)] ^ S6[GB(z, 0x4)] ^ S7[GB(z, 0xa)] ^ S8[GB(z, 0xb)] ^ S8[GB(z, 0x6)];
475         skey->cast5.K[i++] = S5[GB(x, 0x8)] ^ S6[GB(x, 0x9)] ^ S7[GB(x, 0x7)] ^ S8[GB(x, 0x6)] ^ S5[GB(x, 0x3)];
476         skey->cast5.K[i++] = S5[GB(x, 0xa)] ^ S6[GB(x, 0xb)] ^ S7[GB(x, 0x5)] ^ S8[GB(x, 0x4)] ^ S6[GB(x, 0x7)];
477         skey->cast5.K[i++] = S5[GB(x, 0xc)] ^ S6[GB(x, 0xd)] ^ S7[GB(x, 0x3)] ^ S8[GB(x, 0x2)] ^ S7[GB(x, 0x8)];
478         skey->cast5.K[i++] = S5[GB(x, 0xe)] ^ S6[GB(x, 0xf)] ^ S7[GB(x, 0x1)] ^ S8[GB(x, 0x0)] ^ S8[GB(x, 0xd)];
481    skey->cast5.keylen = keylen;
493 int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
496    z = _cast5_setup(key, keylen, num_rounds, skey);
536   @param skey The key as scheduled
539 static int _cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
541 int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
548    LTC_ARGCHK(skey != NULL);
552    L ^= FI(R, skey->cast5.K[0], skey->cast5.K[16]);
553    R ^= FII(L, skey->cast5.K[1], skey->cast5.K[17]);
554    L ^= FIII(R, skey->cast5.K[2], skey->cast5.K[18]);
555    R ^= FI(L, skey->cast5.K[3], skey->cast5.K[19]);
556    L ^= FII(R, skey->cast5.K[4], skey->cast5.K[20]);
557    R ^= FIII(L, skey->cast5.K[5], skey->cast5.K[21]);
558    L ^= FI(R, skey->cast5.K[6], skey->cast5.K[22]);
559    R ^= FII(L, skey->cast5.K[7], skey->cast5.K[23]);
560    L ^= FIII(R, skey->cast5.K[8], skey->cast5.K[24]);
561    R ^= FI(L, skey->cast5.K[9], skey->cast5.K[25]);
562    L ^= FII(R, skey->cast5.K[10], skey->cast5.K[26]);
563    R ^= FIII(L, skey->cast5.K[11], skey->cast5.K[27]);
564    if (skey->cast5.keylen > 10) {
565       L ^= FI(R, skey->cast5.K[12], skey->cast5.K[28]);
566       R ^= FII(L, skey->cast5.K[13], skey->cast5.K[29]);
567       L ^= FIII(R, skey->cast5.K[14], skey->cast5.K[30]);
568       R ^= FI(L, skey->cast5.K[15], skey->cast5.K[31]);
577 int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
579    int err =_cast5_ecb_encrypt(pt,ct,skey);
589   @param skey The key as scheduled 
592 static int _cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
594 int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
601    LTC_ARGCHK(skey != NULL);
605    if (skey->cast5.keylen > 10) {
606       R ^= FI(L, skey->cast5.K[15], skey->cast5.K[31]);
607       L ^= FIII(R, skey->cast5.K[14], skey->cast5.K[30]);
608       R ^= FII(L, skey->cast5.K[13], skey->cast5.K[29]);
609       L ^= FI(R, skey->cast5.K[12], skey->cast5.K[28]);
611    R ^= FIII(L, skey->cast5.K[11], skey->cast5.K[27]);
612    L ^= FII(R, skey->cast5.K[10], skey->cast5.K[26]);
613    R ^= FI(L, skey->cast5.K[9], skey->cast5.K[25]);
614    L ^= FIII(R, skey->cast5.K[8], skey->cast5.K[24]);
615    R ^= FII(L, skey->cast5.K[7], skey->cast5.K[23]);
616    L ^= FI(R, skey->cast5.K[6], skey->cast5.K[22]);
617    R ^= FIII(L, skey->cast5.K[5], skey->cast5.K[21]);
618    L ^= FII(R, skey->cast5.K[4], skey->cast5.K[20]);
619    R ^= FI(L, skey->cast5.K[3], skey->cast5.K[19]);
620    L ^= FIII(R, skey->cast5.K[2], skey->cast5.K[18]);
621    R ^= FII(L, skey->cast5.K[1], skey->cast5.K[17]);
622    L ^= FI(R, skey->cast5.K[0], skey->cast5.K[16]);
630 int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
632    int err = _cast5_ecb_decrypt(ct,pt,skey);
694    @param skey    The scheduled key
696 void cast5_done(symmetric_key *skey)