Similiar to ecdh this supports the legacy kdf inside the provider dh key exchange.
The supporting EVP_PKEY_CTX macros have been changed into mehtods and moved into dh_ctrl.c
New kdfs such as SSKDF should be done as a seperate pass after doing the derive.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12575)
The test added previously used a 16 byte block during the update which does not cause internal buffering in the provider.
Some internal variables related to the buffering were not being cleared in the init, which meant that the second
update would use the buffered data from the first update.
Added test for this scenario with exclusions for ciphers that do not support partial block updates.
Found by guidovranken.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12523)
Fixes#12405Fixes#12377
Calling Init()/Update() and then Init()/Update() again gave a different result when using the same key and iv.
Cipher modes that were using ctx->num were not resetting this value, this includes OFB, CFB & CTR.
The fix is to reset this value during the ciphers einit() and dinit() methods.
Most ciphers go thru a generic method so one line fixes most cases.
Add test for calling EVP_EncryptInit()/EVP_EncryptUpdate() multiple times for all ciphers.
Ciphers should return the same value for both updates.
DES3-WRAP does not since it uses a random in the update.
CCM modes currently also fail on the second update (This also happens in 1_1_1).
Fix memory leak in AES_OCB cipher if EVP_EncryptInit is called multiple times.
Fix AES_SIV cipher dup_ctx and init.
Calling EVP_CIPHER_init multiple times resulted in a memory leak in the siv.
Fixing this leak also showed that the dup ctx was not working for siv mode.
Note: aes_siv_cleanup() can not be used by aes_siv_dupctx() as it clears data
that is required for the decrypt (e.g the tag).
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/12413)
Fixes#11864
- The dsa keygen assumed valid p, q, g values were being passed. If this is not correct then it is
possible that dsa keygen can either hang or segfault.
The fix was to do a partial validation of p, q, and g inside the keygen.
- Fixed a potential double free in the dsa keypair test in the case when in failed (It should never fail!).
It freed internal object members without setting them to NULL.
- Changed the FFC key validation to accept 1024 bit keys in non fips mode.
- Added tests that use both the default provider & fips provider to test these cases.
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/12176)
Shane Lontis
Matt Caswell