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It can be useful to know what group was used for the handshake's key exchange process even on non-TLS 1.3 connections. Allow this API, new in OpenSSL 3.0.0, to be used on other TLS versions as well. Since pre-TLS-1.3 key exchange occurs only on full handshakes, this necessitates adding a field to the SSL_SESSION object to carry the group information across resumptions. The key exchange group in the SSL_SESSION can also be relevant in TLS 1.3 when the resumption handshake uses the "psk_ke" key-exchange mode, so also track whether a fresh key exchange was done for TLS 1.3. Since the new field is optional in the ASN.1 sense, there is no need to increment SSL_SESSION_ASN1_VERSION (which incurs strong incompatibility churn). Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14750) |
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record | ||
statem | ||
bio_ssl.c | ||
build.info | ||
d1_lib.c | ||
d1_msg.c | ||
d1_srtp.c | ||
ktls.c | ||
methods.c | ||
pqueue.c | ||
s3_cbc.c | ||
s3_enc.c | ||
s3_lib.c | ||
s3_msg.c | ||
ssl_asn1.c | ||
ssl_cert_table.h | ||
ssl_cert.c | ||
ssl_ciph.c | ||
ssl_conf.c | ||
ssl_err_legacy.c | ||
ssl_err.c | ||
ssl_init.c | ||
ssl_lib.c | ||
ssl_local.h | ||
ssl_mcnf.c | ||
ssl_rsa_legacy.c | ||
ssl_rsa.c | ||
ssl_sess.c | ||
ssl_stat.c | ||
ssl_txt.c | ||
ssl_utst.c | ||
sslerr.h | ||
t1_enc.c | ||
t1_lib.c | ||
t1_trce.c | ||
tls13_enc.c | ||
tls_depr.c | ||
tls_srp.c |