Symbol: tls1_export_keying_material
crypto/libressl/ssl/ssl_lib.c
1886
return (tls1_export_keying_material(s, out, olen, label, llen, p, plen,
crypto/libressl/ssl/ssl_locl.h
1506
int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,