diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/des/set_key.c')
| -rw-r--r-- | deps/openssl/openssl/crypto/des/set_key.c | 39 |
1 files changed, 11 insertions, 28 deletions
diff --git a/deps/openssl/openssl/crypto/des/set_key.c b/deps/openssl/openssl/crypto/des/set_key.c index dc88b8d041..adbad72362 100644 --- a/deps/openssl/openssl/crypto/des/set_key.c +++ b/deps/openssl/openssl/crypto/des/set_key.c @@ -18,10 +18,9 @@ #include <openssl/crypto.h> #include "des_locl.h" +/* defaults to false */ OPENSSL_IMPLEMENT_GLOBAL(int, DES_check_key, 0) - /* - * defaults to false - */ + static const unsigned char odd_parity[256] = { 1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14, 16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31, @@ -65,9 +64,9 @@ int DES_check_key_parity(const_DES_cblock *key) for (i = 0; i < DES_KEY_SZ; i++) { if ((*key)[i] != odd_parity[(*key)[i]]) - return (0); + return 0; } - return (1); + return 1; } /*- @@ -77,8 +76,6 @@ int DES_check_key_parity(const_DES_cblock *key) * %T Security for Computer Networks * %I John Wiley & Sons * %D 1984 - * Many thanks to smb@ulysses.att.com (Steven Bellovin) for the reference - * (and actual cblock values). */ #define NUM_WEAK_KEY 16 static const DES_cblock weak_keys[NUM_WEAK_KEY] = { @@ -107,15 +104,9 @@ int DES_is_weak_key(const_DES_cblock *key) int i; for (i = 0; i < NUM_WEAK_KEY; i++) - /* - * Added == 0 to comparison, I obviously don't run this section very - * often :-(, thanks to engineering@MorningStar.Com for the fix eay - * 93/06/29 Another problem, I was comparing only the first 4 bytes, - * 97/03/18 - */ if (memcmp(weak_keys[i], key, sizeof(DES_cblock)) == 0) - return (1); - return (0); + return 1; + return 0; } /*- @@ -302,9 +293,9 @@ int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule) int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule) { if (!DES_check_key_parity(key)) - return (-1); + return -1; if (DES_is_weak_key(key)) - return (-2); + return -2; DES_set_key_unchecked(key, schedule); return 0; } @@ -329,8 +320,8 @@ void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule) c2l(in, d); /* - * do PC1 in 47 simple operations :-) Thanks to John Fletcher - * (john_fletcher@lccmail.ocf.llnl.gov) for the inspiration. :-) + * do PC1 in 47 simple operations. Thanks to John Fletcher + * for the inspiration. */ PERM_OP(d, c, t, 4, 0x0f0f0f0fL); HPERM_OP(c, t, -2, 0xcccc0000L); @@ -377,13 +368,5 @@ void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule) int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule) { - return (DES_set_key(key, schedule)); + return DES_set_key(key, schedule); } - -/*- -#undef des_fixup_key_parity -void des_fixup_key_parity(des_cblock *key) - { - des_set_odd_parity(key); - } -*/ |