5 SSL_CTX_use_certificate, SSL_CTX_use_certificate_ASN1, SSL_CTX_use_certificate_file, SSL_use_certificate, SSL_use_certificate_ASN1, SSL_use_certificate_file, SSL_CTX_use_certificate_chain_file, SSL_CTX_use_PrivateKey, SSL_CTX_use_PrivateKey_ASN1, SSL_CTX_use_PrivateKey_file, SSL_CTX_use_RSAPrivateKey, SSL_CTX_use_RSAPrivateKey_ASN1, SSL_CTX_use_RSAPrivateKey_file, SSL_use_PrivateKey_file, SSL_use_PrivateKey_ASN1, SSL_use_PrivateKey, SSL_use_RSAPrivateKey, SSL_use_RSAPrivateKey_ASN1, SSL_use_RSAPrivateKey_file, SSL_CTX_check_private_key, SSL_check_private_key - load certificate and key data
9 #include <openssl/ssl.h>
11 int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
12 int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, unsigned char *d);
13 int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type);
14 int SSL_use_certificate(SSL *ssl, X509 *x);
15 int SSL_use_certificate_ASN1(SSL *ssl, unsigned char *d, int len);
16 int SSL_use_certificate_file(SSL *ssl, const char *file, int type);
18 int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file);
20 int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
21 int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx, unsigned char *d,
23 int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type);
24 int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
25 int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, unsigned char *d, long len);
26 int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type);
27 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
28 int SSL_use_PrivateKey_ASN1(int pk,SSL *ssl, unsigned char *d, long len);
29 int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type);
30 int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
31 int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len);
32 int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type);
34 int SSL_CTX_check_private_key(const SSL_CTX *ctx);
35 int SSL_check_private_key(const SSL *ssl);
39 These functions load the certificates and private keys into the SSL_CTX
40 or SSL object, respectively.
42 The SSL_CTX_* class of functions loads the certificates and keys into the
43 SSL_CTX object B<ctx>. The information is passed to SSL objects B<ssl>
44 created from B<ctx> with L<SSL_new(3)|SSL_new(3)> by copying, so that
45 changes applied to B<ctx> do not propagate to already existing SSL objects.
47 The SSL_* class of functions only loads certificates and keys into a
48 specific SSL object. The specific information is kept, when
49 L<SSL_clear(3)|SSL_clear(3)> is called for this SSL object.
51 SSL_CTX_use_certificate() loads the certificate B<x> into B<ctx>,
52 SSL_use_certificate() loads B<x> into B<ssl>. The rest of the
53 certificates needed to form the complete certificate chain can be
55 L<SSL_CTX_add_extra_chain_cert(3)|SSL_CTX_add_extra_chain_cert(3)>
58 SSL_CTX_use_certificate_ASN1() loads the ASN1 encoded certificate from
59 the memory location B<d> (with length B<len>) into B<ctx>,
60 SSL_use_certificate_ASN1() loads the ASN1 encoded certificate into B<ssl>.
62 SSL_CTX_use_certificate_file() loads the first certificate stored in B<file>
63 into B<ctx>. The formatting B<type> of the certificate must be specified
64 from the known types SSL_FILETYPE_PEM, SSL_FILETYPE_ASN1.
65 SSL_use_certificate_file() loads the certificate from B<file> into B<ssl>.
66 See the NOTES section on why SSL_CTX_use_certificate_chain_file()
69 SSL_CTX_use_certificate_chain_file() loads a certificate chain from
70 B<file> into B<ctx>. The certificates must be in PEM format and must
71 be sorted starting with the subject's certificate (actual client or server
72 certificate), followed by intermediate CA certificates if applicable, and
73 ending at the highest level (root) CA.
74 There is no corresponding function working on a single SSL object.
76 SSL_CTX_use_PrivateKey() adds B<pkey> as private key to B<ctx>.
77 SSL_CTX_use_RSAPrivateKey() adds the private key B<rsa> of type RSA
78 to B<ctx>. SSL_use_PrivateKey() adds B<pkey> as private key to B<ssl>;
79 SSL_use_RSAPrivateKey() adds B<rsa> as private key of type RSA to B<ssl>.
80 If a certificate has already been set and the private does not belong
81 to the certificate an error is returned. To change a certificate, private
82 key pair the new certificate needs to be set with SSL_use_certificate()
83 or SSL_CTX_use_certificate() before setting the private key with
84 SSL_CTX_use_PrivateKey() or SSL_use_PrivateKey().
87 SSL_CTX_use_PrivateKey_ASN1() adds the private key of type B<pk>
88 stored at memory location B<d> (length B<len>) to B<ctx>.
89 SSL_CTX_use_RSAPrivateKey_ASN1() adds the private key of type RSA
90 stored at memory location B<d> (length B<len>) to B<ctx>.
91 SSL_use_PrivateKey_ASN1() and SSL_use_RSAPrivateKey_ASN1() add the private
94 SSL_CTX_use_PrivateKey_file() adds the first private key found in
95 B<file> to B<ctx>. The formatting B<type> of the certificate must be specified
96 from the known types SSL_FILETYPE_PEM, SSL_FILETYPE_ASN1.
97 SSL_CTX_use_RSAPrivateKey_file() adds the first private RSA key found in
98 B<file> to B<ctx>. SSL_use_PrivateKey_file() adds the first private key found
99 in B<file> to B<ssl>; SSL_use_RSAPrivateKey_file() adds the first private
100 RSA key found to B<ssl>.
102 SSL_CTX_check_private_key() checks the consistency of a private key with
103 the corresponding certificate loaded into B<ctx>. If more than one
104 key/certificate pair (RSA/DSA) is installed, the last item installed will
105 be checked. If e.g. the last item was a RSA certificate or key, the RSA
106 key/certificate pair will be checked. SSL_check_private_key() performs
107 the same check for B<ssl>. If no key/certificate was explicitly added for
108 this B<ssl>, the last item added into B<ctx> will be checked.
112 The internal certificate store of OpenSSL can hold two private key/certificate
113 pairs at a time: one key/certificate of type RSA and one key/certificate
114 of type DSA. The certificate used depends on the cipher select, see
115 also L<SSL_CTX_set_cipher_list(3)|SSL_CTX_set_cipher_list(3)>.
117 When reading certificates and private keys from file, files of type
118 SSL_FILETYPE_ASN1 (also known as B<DER>, binary encoding) can only contain
119 one certificate or private key, consequently
120 SSL_CTX_use_certificate_chain_file() is only applicable to PEM formatting.
121 Files of type SSL_FILETYPE_PEM can contain more than one item.
123 SSL_CTX_use_certificate_chain_file() adds the first certificate found
124 in the file to the certificate store. The other certificates are added
125 to the store of chain certificates using
126 L<SSL_CTX_add_extra_chain_cert(3)|SSL_CTX_add_extra_chain_cert(3)>.
127 There exists only one extra chain store, so that the same chain is appended
128 to both types of certificates, RSA and DSA! If it is not intended to use
129 both type of certificate at the same time, it is recommended to use the
130 SSL_CTX_use_certificate_chain_file() instead of the
131 SSL_CTX_use_certificate_file() function in order to allow the use of
132 complete certificate chains even when no trusted CA storage is used or
133 when the CA issuing the certificate shall not be added to the trusted
136 If additional certificates are needed to complete the chain during the
137 TLS negotiation, CA certificates are additionally looked up in the
138 locations of trusted CA certificates, see
139 L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>.
141 The private keys loaded from file can be encrypted. In order to successfully
142 load encrypted keys, a function returning the passphrase must have been
144 L<SSL_CTX_set_default_passwd_cb(3)|SSL_CTX_set_default_passwd_cb(3)>.
145 (Certificate files might be encrypted as well from the technical point
146 of view, it however does not make sense as the data in the certificate
147 is considered public anyway.)
151 On success, the functions return 1.
152 Otherwise check out the error stack to find out the reason.
156 L<ssl(3)|ssl(3)>, L<SSL_new(3)|SSL_new(3)>, L<SSL_clear(3)|SSL_clear(3)>,
157 L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>,
158 L<SSL_CTX_set_default_passwd_cb(3)|SSL_CTX_set_default_passwd_cb(3)>,
159 L<SSL_CTX_set_cipher_list(3)|SSL_CTX_set_cipher_list(3)>,
160 L<SSL_CTX_set_client_cert_cb(3)|SSL_CTX_set_client_cert_cb(3)>,
161 L<SSL_CTX_add_extra_chain_cert(3)|SSL_CTX_add_extra_chain_cert(3)>
165 Support for DER encoded private keys (SSL_FILETYPE_ASN1) in
166 SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() was added