Hello, I compiled it using sun compiler, with some modifications to the source code.
However :) openssl s_client -connect google.com:443 -tls1_2 works fine ! But openssl s_client -connect google.com:443 -tls1_3 fails on CRYPTO_memcmp. For easy debugging, I have made a copy of CRYPTO_memcmp in gcm128, called CRYPTO_gcm128_memcmp. Here is what I get (added some log 😅). As you can see, ctx->Xi.c and tag don't match. I have looked for hours to find why, with no luck yet. Any idea how to debug this ? Some tests to run to check if everything is ok ? crypto/modes/gcm128.c:1931 ctx->EK0.u[0]=a2e1d0203e9a02ca crypto/modes/gcm128.c:1932 ctx->EK0.u[1]=9fc11c97afde22db crypto/modes/gcm128.c:1933 ctx->Xi.u[0]=a22699a2cb77c69d crypto/modes/gcm128.c:1934 ctx->Xi.u[1]=5af190e82eeffaf3 crypto/modes/gcm128.c:1937 after xor: crypto/modes/gcm128.c:1938 ctx->Xi.u[0]=c74982f5edc457 crypto/modes/gcm128.c:1939 ctx->Xi.u[1]=c5308c7f8131d828 crypto/modes/gcm128.c:1941 crypto/modes/gcm128.c:1834 CRYPTO_gcm128_memcmp len=16 00^a7 c7^c1 49^4d 82^51 f5^0b ed^25 c4^ae 57^26 c5^d2 30^66 8c^33 7f^82 81^0f 31^75 d8^a4 28^e0 crypto/modes/gcm128.c:1842 CRYPTO_gcm128_memcmp crypto/modes/gcm128.c:1957 ret = 255