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
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
