Check-in [9d1bdab9a6]
EuroTcl/OpenACS 11 - 12 JULY 2024, VIENNA
Overview
Comment:Changed to only allow SSL2 and SSL3 to be manually enabled. See RFC 8996, Deprecating TLS 1.0 and TLS 1.1. Also see NIST SP 800-52r2 which requires TLS 1.2 and TLS 1.3, should not use TLS 1.1, and shall not use TLS 1.0, SSL 3.0, or SSL 2.0.
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SHA3-256: 9d1bdab9a6e7e00285ae227380c9136a65b751c87d0e3dc429c7a3c7987ddce0
User & Date: bohagan on 2023-09-02 20:03:56
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Context
2023-09-02
21:13
Set automatic curve selection for ECDH temporary keys used during key exchange. Used to make a server always choose the most appropriate curve for a client. Disable compression even if supported. check-in: 1dbae1afec user: bohagan tags: trunk, main
20:03
Changed to only allow SSL2 and SSL3 to be manually enabled. See RFC 8996, Deprecating TLS 1.0 and TLS 1.1. Also see NIST SP 800-52r2 which requires TLS 1.2 and TLS 1.3, should not use TLS 1.1, and shall not use TLS 1.0, SSL 3.0, or SSL 2.0. check-in: 9d1bdab9a6 user: bohagan tags: trunk, main
2023-09-01
21:57
Merged status and X509 updates branch into master check-in: 3432ab03a3 user: bohagan tags: trunk, main
Changes

Modified generic/tls.c from [18bce24fbb] to [a404941892].

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    int ssl2 = 0, ssl3 = 0;
    int tls1 = 1, tls1_1 = 1, tls1_2 = 1, tls1_3 = 1;
    int proto = 0, level = -1;
    int verify = 0, require = 0, request = 1, post_handshake = 0;

    dprintf("Called");

#if OPENSSL_VERSION_NUMBER < 0x10100000L && !defined(OPENSSL_NO_SSL2) && !defined(NO_SSL2) && defined(NO_SSL3) && defined(NO_TLS1) && defined(NO_TLS1_1) && defined(NO_TLS1_2) && defined(NO_TLS1_3)
    ssl2 = 1;
#endif
#if !defined(OPENSSL_NO_SSL3) && !defined(NO_SSL3) && defined(NO_SSL2) && defined(NO_TLS1) && defined(NO_TLS1_1) && defined(NO_TLS1_2) && defined(NO_TLS1_3)
    ssl3 = 1;
#endif
#if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1)
    tls1 = 0;
#endif
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1)
    tls1_1 = 0;
#endif
#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2)







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    int ssl2 = 0, ssl3 = 0;
    int tls1 = 1, tls1_1 = 1, tls1_2 = 1, tls1_3 = 1;
    int proto = 0, level = -1;
    int verify = 0, require = 0, request = 1, post_handshake = 0;

    dprintf("Called");







#if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1)
    tls1 = 0;
#endif
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1)
    tls1_1 = 0;
#endif
#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2)
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#endif
#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3)
    if (ENABLED(proto, TLS_PROTO_TLS1_3)) {
	Tcl_AppendResult(interp, "TLS 1.3 protocol not supported", NULL);
	return NULL;
    }
#endif






    switch (proto) {
#if OPENSSL_VERSION_NUMBER < 0x10100000L && !defined(NO_SSL2) && !defined(OPENSSL_NO_SSL2)
    case TLS_PROTO_SSL2:
	method = isServer ? SSLv2_server_method() : SSLv2_client_method();
	break;
#endif







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#endif
#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3)
    if (ENABLED(proto, TLS_PROTO_TLS1_3)) {
	Tcl_AppendResult(interp, "TLS 1.3 protocol not supported", NULL);
	return NULL;
    }
#endif
    if (proto == 0) {
	/* Use full range */
	SSL_CTX_set_min_proto_version(ctx, 0);
	SSL_CTX_set_max_proto_version(ctx, 0);
    }

    switch (proto) {
#if OPENSSL_VERSION_NUMBER < 0x10100000L && !defined(NO_SSL2) && !defined(OPENSSL_NO_SSL2)
    case TLS_PROTO_SSL2:
	method = isServer ? SSLv2_server_method() : SSLv2_client_method();
	break;
#endif