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Allow cipher strings to be given using its standard name 

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16179)
This commit is contained in:
Erik Lax 2021-07-30 00:47:46 +02:00 committed by Tomas Mraz
parent 398ae82316
commit d1b26ddbf6
4 changed files with 30 additions and 2 deletions
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5
CHANGES.md
View File

@ -24,6 +24,11 @@ OpenSSL 3.1
### Changes between 3.0 and 3.1 [xx XXX xxxx]
* The SSL_CTX_set_cipher_list family functions now accept ciphers using their
IANA standard names.
*Erik Lax*
* The PVK key derivation function has been moved from b2i_PVK_bio_ex() into
the legacy crypto provider as an EVP_KDF. Applications requiring this KDF
will need to load the legacy crypto provider.

2
doc/man1/openssl-ciphers.pod.in
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@ -115,6 +115,8 @@ used. The format is described below.
The cipher list consists of one or more I<cipher strings> separated by colons.
Commas or spaces are also acceptable separators but colons are normally used.
The cipher string may reference a cipher using its standard name.
The actual cipher string can take several different forms.
It can consist of a single cipher suite such as B<RC4-SHA>.

9
ssl/ssl_ciph.c
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@ -1042,9 +1042,9 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
while (((ch >= 'A') && (ch <= 'Z')) ||
((ch >= '0') && (ch <= '9')) ||
((ch >= 'a') && (ch <= 'z')) ||
(ch == '-') || (ch == '.') || (ch == '='))
(ch == '-') || (ch == '_') || (ch == '.') || (ch == '='))
#else
while (isalnum((unsigned char)ch) || (ch == '-') || (ch == '.')
while (isalnum((unsigned char)ch) || (ch == '-') || (ch == '_') || (ch == '.')
|| (ch == '='))
#endif
{
@ -1095,6 +1095,11 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
&& (ca_list[j]->name[buflen] == '\0')) {
found = 1;
break;
} else if (ca_list[j]->stdname != NULL
&& strncmp(buf, ca_list[j]->stdname, buflen) == 0
&& ca_list[j]->stdname[buflen] == '\0') {
found = 1;
break;
} else
j++;
}

16
test/cipherlist_test.c
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@ -244,10 +244,26 @@ end:
return result;
}
/* SSL_CTX_set_cipher_list matching with cipher standard name */
static int test_stdname_cipherlist(void)
{
SETUP_CIPHERLIST_TEST_FIXTURE();
if (!TEST_true(SSL_CTX_set_cipher_list(fixture->server, TLS1_RFC_RSA_WITH_AES_128_SHA))
|| !TEST_true(SSL_CTX_set_cipher_list(fixture->client, TLS1_RFC_RSA_WITH_AES_128_SHA))) {
goto end;
}
result = 1;
end:
tear_down(fixture);
fixture = NULL;
return result;
}
int setup_tests(void)
{
ADD_TEST(test_default_cipherlist_implicit);
ADD_TEST(test_default_cipherlist_explicit);
ADD_TEST(test_default_cipherlist_clear);
ADD_TEST(test_stdname_cipherlist);
return 1;
}