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Enable compression in OpenSSL and add opt-in certificate compression support for TLS connections #62217

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pimterry wants to merge 7 commits into from
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Enable compression in OpenSSL and add opt-in certificate compression support for TLS connections #62217

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3f66e1d
deps: update OpenSSL build config to support compression
pimterry Mar 12, 2026
ef7ec79
fixup! deps: update OpenSSL build config to support compression
pimterry Mar 11, 2026
8f47bd0
fixup! deps: update OpenSSL build config to support compression
pimterry Mar 12, 2026
78f8486
tls: add certificateCompression option
pimterry Mar 11, 2026
7b7c2de
fixup! tls: add certificateCompression option
pimterry Jun 2, 2026
3bbaede
fixup! tls: add certificateCompression option
pimterry Jun 17, 2026
ffbba49
fixup! tls: add certificateCompression option
pimterry Jun 18, 2026
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11 changes: 9 additions & 2 deletions deps/openssl/config/Makefile
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Expand Up @@ -21,11 +21,18 @@ CC = gcc
FAKE_GCC = ../config/fake_gcc.pl

CONFIGURE = ./Configure
# no-comp: against CRIME attack
# no-tests: test dir is not included or used
# no-shared: openssl-cli needs static link
# no-afalgeng: old Linux kernel < 4.0 does not support it
# enable-ssl-trace: cause the optional SSL_trace API to be built
COPTS = no-comp no-shared no-afalgeng enable-ssl-trace enable-fips
# zlib/brotli/zstd: enable compression libraries for TLS certificate
# compression (RFC 8879). Record compression remains disabled at runtime
# via SSL_OP_NO_COMPRESSION and sk_SSL_COMP_zero() in crypto_util.cc.
# Include paths point to Node's bundled deps (relative to openssl/).
COPTS = no-tests no-shared no-afalgeng enable-ssl-trace enable-fips \
zlib --with-zlib-include=../../zlib \
enable-brotli --with-brotli-include=../../brotli/c/include \
enable-zstd --with-zstd-include=../../zstd/lib

# disable platform check in Configure
NO_WARN_ENV = CONFIGURE_CHECKER_WARN=1
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