Many deprecated functions warnings if compiled with OpenSSL 3.0

[socketpair]

warning: 'MD5_Init' is deprecated: Since OpenSSL 3.0
warning: 'MD5_Update' is deprecated: Since OpenSSL 3.0
warning: 'MD5_Final' is deprecated: Since OpenSSL 3.0

warning: 'PEM_read_bio_DHparams' is deprecated: Since OpenSSL 3.0
warning: 'DH_free' is deprecated: Since OpenSSL 3.0
warning: 'DES_set_key_checked' is deprecated: Since OpenSSL 3.0
warning: 'DES_ecb_encrypt' is deprecated: Since OpenSSL 3.0
warning: 'MD4_Init' is deprecated: Since OpenSSL 3.0

and so on.