diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/lib/crypto/des/d3_str2ky.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/lib/crypto/des/d3_str2ky.c b/src/lib/crypto/des/d3_str2ky.c index 5f4d7a050b..d83810d01e 100644 --- a/src/lib/crypto/des/d3_str2ky.c +++ b/src/lib/crypto/des/d3_str2ky.c @@ -90,8 +90,11 @@ const krb5_data FAR * salt; return EINVAL; /* fix key parity */ - for (j = 0; j < keyblock->length/sizeof(mit_des_cblock); j++) + for (j = 0; j < keyblock->length/sizeof(mit_des_cblock); j++) { mit_des_fixup_key_parity(*((mit_des_cblock *)key+j)); + if (mit_des_is_weak_key(*((mit_des_cblock *)key+j))) + *((unsigned char *)((mit_des_cblock *)key+j)) ^= 0xf0; + } /* Now, CBC encrypt with itself */ (void) mit_des3_key_sched(*((mit_des3_cblock *)key), ks); @@ -111,8 +114,11 @@ const krb5_data FAR * salt; krb5_xfree(copystr); /* now fix up key parity again */ - for (j = 0; j < keyblock->length/sizeof(mit_des_cblock); j++) + for (j = 0; j < keyblock->length/sizeof(mit_des_cblock); j++) { mit_des_fixup_key_parity(*((mit_des_cblock *)key+j)); + if (mit_des_is_weak_key(*((mit_des_cblock *)key+j))) + *((unsigned char *)((mit_des_cblock *)key+j)) ^= 0xf0; + } return 0; } |