[exim-dev] [Bug 2643] ffdhe2048 modulus is wrong

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Autor: admin
Fecha:  
A: exim-dev
Asunto: [exim-dev] [Bug 2643] ffdhe2048 modulus is wrong
https://bugs.exim.org/show_bug.cgi?id=2643

--- Comment #3 from kylon94@??? ---
std-crypto.c line 510-518 is

static const char dh_ffdhe2048_pem[] =
"-----BEGIN DH PARAMETERS-----\n"
"MIH+AoH4DfhUWKK7Spqv3FYgJz088di5xYPOLTaVqeE2QRRkM/vMk53OJJs++X0v\n"
"42NjDHXY9oGyAq7EYXrT3x7V1f1lYSQz9R9fBm7QhWNlVT3tGvO1VxNef1fJNZhP\n"
"DHDg5ot34qaJ2vPv6HId8VihNq3nNTCsyk9IOnl6vAqxgrMk+2HRCKlLssjj+7lq\n"
"2rdg1/RoHU9Co945TfSuVu3nY3K7GQsHp8juCm1wngL84c334uzANATNKDQvYZFy\n"
"/pzphYP/jk8SMu7ygYPD/jsbTG+tczu1/LwuwiAFxY7xg30Wg7LG80omwbLv+ohr\n"
"QjhhKFyX//////////8CAQI=\n"
"-----END DH PARAMETERS-----\n";

and not
"-----BEGIN DH PARAMETERS-----\n"
"MIIBDAKCAQEA//////////+t+FRYortKmq/cViAnPTzx2LnFg84tNpWp4TZBFGQz\n"
"+8yTnc4kmz75fS/jY2MMddj2gbICrsRhetPfHtXV/WVhJDP1H18GbtCFY2VVPe0a\n"
"87VXE15/V8k1mE8McODmi3fipona8+/och3xWKE2rec1MKzKT0g6eXq8CrGCsyT7\n"
"YdEIqUuyyOP7uWrat2DX9GgdT0Kj3jlN9K5W7edjcrsZCwenyO4KbXCeAvzhzffi\n"
"7MA0BM0oNC9hkXL+nOmFg/+OTxIy7vKBg8P+OxtMb61zO7X8vC7CIAXFjvGDfRaD\n"
"ssbzSibBsu/6iGtCOGEoXJf//////////wIBAgICB/8=\n"
"-----END DH PARAMETERS-----\n";

I derive this from the RFC definition and openssl dhparam -in [RFC 7919 value]
-text

My findings agree with
https://github.com/mozilla/ssl-config-generator/issues/116#issuecomment-694535540.
Looks like the current parameter in 510-518 is missing values.

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