diff options
| author | Dr. Stephen Henson <steve@openssl.org> | 2017-10-08 22:04:05 +0200 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2017-10-12 03:40:30 +0200 |
| commit | 5f2d9c4d26c923ece6ee04616a2d32a1afc124c8 (patch) | |
| tree | c8904723a53c13363430c40099ff37cfebd52dd6 /crypto/bn/bn_const.c | |
| parent | Document EVP_PKEY_set1_engine() (diff) | |
| download | openssl-5f2d9c4d26c923ece6ee04616a2d32a1afc124c8.tar.xz openssl-5f2d9c4d26c923ece6ee04616a2d32a1afc124c8.zip | |
Support constant BN for DH parameters
If BN_FLG_STATIC_DATA is set don't cleanse a->d as it will reside
in read only memory. If BN_FLG_MALLOCED is not set don't modify the
BIGNUM at all.
This change applies to BN_clear_free() and BN_free(). Now the BIGNUM
structure is opaque applications cannot create a BIGNUM structure
without BN_FLG_MALLOCED being set so they are unaffected.
Update internal DH routines so they only copy pointers for read only
parameters.
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4485)
Diffstat (limited to 'crypto/bn/bn_const.c')
0 files changed, 0 insertions, 0 deletions