This patchset adds 256bit keys and TLS1.3 support to the kernel TLS socket.
TLS 1.3 is requested by passing TLS_1_3_VERSION in the setsockopt call, which changes the framing as required for TLS1.3. 256bit keys are requested by passing TLS_CIPHER_AES_GCM_256 in the sockopt. This is a fairly straightforward passthrough to the crypto framework. 256bit keys work with both TLS 1.2 and TLS 1.3 TLS 1.3 requires a different AAD layout, necessitating some minor refactoring. It also moves the message type byte to the encrypted portion of the message, instead of the cleartext header as it was in TLS1.2. This requires moving the control message handling to after decryption, but is otherwise similar. V1 -> V2 The first two patches were dropped, and sent separately, one as a bugfix to the net tree. Dave Watson (5): net: tls: Support 256 bit keys net: tls: Refactor tls aad space size calculation net: tls: Refactor control message handling on recv net: tls: Add tls 1.3 support net: tls: Add tests for TLS 1.3 include/net/tls.h | 72 ++++++--- include/uapi/linux/tls.h | 19 +++ net/tls/tls_device.c | 5 +- net/tls/tls_device_fallback.c | 3 +- net/tls/tls_main.c | 36 ++++- net/tls/tls_sw.c | 244 +++++++++++++++++++++--------- tools/testing/selftests/net/tls.c | 138 ++++++++++++++++- 7 files changed, 417 insertions(+), 100 deletions(-) -- 2.17.1
