diff options
| author | Stephen Farrell <stephen.farrell@cs.tcd.ie> | 2022-11-22 02:42:04 +0000 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2022-11-25 16:26:55 +0000 |
| commit | ad062480f7490197b174edad8625ce40d74f6e68 (patch) | |
| tree | f4ac43084558412509820b4d167b4c2906f5cfb2 /providers/implementations/kem/kem_util.c | |
| parent | 0dbd3a81e46dd7ea9f7832307fdd0b2ac207a5bf (diff) | |
Implements Hybrid Public Key Encryption (HPKE) as per RFC9180.
This supports all the modes, suites and export mechanisms defined
in RFC9180 and should be relatively easily extensible if/as new
suites are added. The APIs are based on the pseudo-code from the
RFC, e.g. OSS_HPKE_encap() roughly maps to SetupBaseS(). External
APIs are defined in include/openssl/hpke.h and documented in
doc/man3/OSSL_HPKE_CTX_new.pod. Tests (test/hpke_test.c) include
verifying a number of the test vectors from the RFC as well as
round-tripping for all the modes and suites. We have demonstrated
interoperability with other HPKE implementations via a fork [1]
that implements TLS Encrypted ClientHello (ECH) which uses HPKE.
@slontis provided huge help in getting this done and this makes
extensive use of the KEM handling code from his PR#19068.
[1] https://github.com/sftcd/openssl/tree/ECH-draft-13c
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17172)
Diffstat (limited to 'providers/implementations/kem/kem_util.c')
| -rw-r--r-- | providers/implementations/kem/kem_util.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/providers/implementations/kem/kem_util.c b/providers/implementations/kem/kem_util.c index 8ce2854ee4..1fd52e1c2d 100644 --- a/providers/implementations/kem/kem_util.c +++ b/providers/implementations/kem/kem_util.c @@ -35,11 +35,3 @@ int ossl_eckem_modename2id(const char *name) } return KEM_MODE_UNDEFINED; } - -/* suiteid = concat("KEM", I2OSP(kem_id, 2)) */ -void ossl_dhkem_getsuiteid(unsigned char suiteid[5], uint16_t kemid) -{ - memcpy(suiteid, "KEM", 3); - suiteid[3] = kemid >> 8; - suiteid[4] = kemid & 0xFF; -} |