diff options
Diffstat (limited to 'src/libtom/tomcrypt_des.c')
| -rw-r--r-- | src/libtom/tomcrypt_des.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/src/libtom/tomcrypt_des.c b/src/libtom/tomcrypt_des.c index a9a4839..3cdc13f 100644 --- a/src/libtom/tomcrypt_des.c +++ b/src/libtom/tomcrypt_des.c @@ -1562,27 +1562,17 @@ static int des3_setup(const unsigned char *key, int keylen, int num_rounds, symm return CRYPT_INVALID_ROUNDS; } - if (keylen != 24 && keylen != 16) { + if (keylen != 24) { return CRYPT_INVALID_KEYSIZE; } deskey(key, EN0, skey->des3.ek[0]); deskey(key+8, DE1, skey->des3.ek[1]); - if (keylen == 24) { - deskey(key+16, EN0, skey->des3.ek[2]); - } else { - /* two-key 3DES: K3=K1 */ - deskey(key, EN0, skey->des3.ek[2]); - } + deskey(key+16, EN0, skey->des3.ek[2]); deskey(key, DE1, skey->des3.dk[2]); deskey(key+8, EN0, skey->des3.dk[1]); - if (keylen == 24) { - deskey(key+16, DE1, skey->des3.dk[0]); - } else { - /* two-key 3DES: K3=K1 */ - deskey(key, DE1, skey->des3.dk[0]); - } + deskey(key+16, DE1, skey->des3.dk[0]); return CRYPT_OK; } |