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SSL: removed export ciphers support.

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Export ciphers are forbidden to negotiate in TLS 1.1 and later protocol modes.
They are disabled since OpenSSL 1.0.2g by default unless explicitly configured
with "enable-weak-ssl-ciphers", and completely removed in OpenSSL 1.1.0.
This commit is contained in:
Sergey Kandaurov 2021-08-10 23:43:17 +03:00
parent 5155845ce4
commit 9e4e7a4e42
2 changed files with 0 additions and 36 deletions
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31
src/event/ngx_event_openssl.c
View File

@ -863,11 +863,6 @@ ngx_ssl_ciphers(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *ciphers,
SSL_CTX_set_options(ssl->ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
}
#if (OPENSSL_VERSION_NUMBER < 0x10100001L && !defined LIBRESSL_VERSION_NUMBER)
/* a temporary 512-bit RSA key is required for export versions of MSIE */
SSL_CTX_set_tmp_rsa_callback(ssl->ctx, ngx_ssl_rsa512_key_callback);
#endif
return NGX_OK;
}
@ -1120,32 +1115,6 @@ ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where, int ret)
}
#if (OPENSSL_VERSION_NUMBER < 0x10100001L && !defined LIBRESSL_VERSION_NUMBER)
RSA *
ngx_ssl_rsa512_key_callback(ngx_ssl_conn_t *ssl_conn, int is_export,
int key_length)
{
static RSA *key;
if (key_length != 512) {
return NULL;
}
#ifndef OPENSSL_NO_DEPRECATED
if (key == NULL) {
key = RSA_generate_key(512, RSA_F4, NULL, NULL);
}
#endif
return key;
}
#endif
ngx_array_t *
ngx_ssl_read_password_file(ngx_conf_t *cf, ngx_str_t *file)
{

5
src/event/ngx_event_openssl.h
View File

@ -29,7 +29,6 @@
#include <openssl/ocsp.h>
#endif
#include <openssl/rand.h>
#include <openssl/rsa.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
@ -208,10 +207,6 @@ ngx_int_t ngx_ssl_ocsp_validate(ngx_connection_t *c);
ngx_int_t ngx_ssl_ocsp_get_status(ngx_connection_t *c, const char **s);
void ngx_ssl_ocsp_cleanup(ngx_connection_t *c);
ngx_int_t ngx_ssl_ocsp_cache_init(ngx_shm_zone_t *shm_zone, void *data);
#if (OPENSSL_VERSION_NUMBER < 0x10100001L && !defined LIBRESSL_VERSION_NUMBER)
RSA *ngx_ssl_rsa512_key_callback(ngx_ssl_conn_t *ssl_conn, int is_export,
int key_length);
#endif
ngx_array_t *ngx_ssl_read_password_file(ngx_conf_t *cf, ngx_str_t *file);
ngx_array_t *ngx_ssl_preserve_passwords(ngx_conf_t *cf,
ngx_array_t *passwords);