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#define | GNUTLS_PCERT_NO_CERT |
#define | GNUTLS_PUBKEY_VERIFY_FLAG_TLS_RSA |
struct | gnutls_privkey_st |
typedef | gnutls_privkey_t |
#define | gnutls_pubkey_get_pk_dsa_raw |
#define | gnutls_pubkey_get_pk_ecc_raw |
#define | gnutls_pubkey_get_pk_ecc_x962 |
#define | gnutls_pubkey_get_pk_rsa_raw |
struct | gnutls_pubkey_st |
typedef | gnutls_pubkey_t |
int gnutls_certificate_set_key (gnutls_certificate_credentials_t res
,const char **names
,int names_size
,gnutls_pcert_st *pcert_list
,int pcert_list_size
,gnutls_privkey_t key
);
This function sets a certificate/private key pair in the
gnutls_certificate_credentials_t type. This function may be
called more than once, in case multiple keys/certificates exist for
the server. For clients that want to send more than their own end-
entity certificate (e.g., also an intermediate CA cert), the full
certificate chain must be provided in pcert_list
.
Note that the key
and the elements of pcert_list
will become part of the credentials
structure and must not be deallocated. They will be automatically deallocated
when the res
structure is deinitialized.
If that function fails to load the res
structure is at an undefined state, it must
not be reused to load other keys or certificates.
Note that, this function by default returns zero on success and a negative value on error.
Since 3.5.6, when the flag GNUTLS_CERTIFICATE_API_V2
is set using gnutls_certificate_set_flags()
it returns an index (greater or equal to zero). That index can be used to other functions to refer to the added key-pair.
res |
is a gnutls_certificate_credentials_t type. |
|
names |
is an array of DNS name of the certificate (NULL if none) |
|
names_size |
holds the size of the names list |
|
pcert_list |
contains a certificate list (path) for the specified private key |
|
pcert_list_size |
holds the size of the certificate list |
|
key |
is a gnutls_privkey_t key |
On success this functions returns zero, and otherwise a negative value on error (see above for modifying that behavior).
Since: 3.0
void gnutls_certificate_set_retrieve_function2 (gnutls_certificate_credentials_t cred
,gnutls_certificate_retrieve_function2 *func
);
This function sets a callback to be called in order to retrieve the certificate to be used in the handshake. The callback will take control only if a certificate is requested by the peer.
The callback's function prototype is: int (*callback)(gnutls_session_t, const gnutls_datum_t* req_ca_dn, int nreqs, const gnutls_pk_algorithm_t* pk_algos, int pk_algos_length, gnutls_pcert_st** pcert, unsigned int *pcert_length, gnutls_privkey_t * pkey);
req_ca_dn
is only used in X.509 certificates.
Contains a list with the CA names that the server considers trusted.
This is a hint and typically the client should send a certificate that is signed
by one of these CAs. These names, when available, are DER encoded. To get a more
meaningful value use the function gnutls_x509_rdn_get()
.
pk_algos
contains a list with server's acceptable signature algorithms.
The certificate returned should support the server's given algorithms.
pcert
should contain a single certificate and public key or a list of them.
pcert_length
is the size of the previous list.
pkey
is the private key.
If the callback function is provided then gnutls will call it, in the handshake, after the certificate request message has been received. All the provided by the callback values will not be released or modified by gnutls.
In server side pk_algos and req_ca_dn are NULL.
The callback function should set the certificate list to be sent, and return 0 on success. If no certificate was selected then the number of certificates should be set to zero. The value (-1) indicates error and the handshake will be terminated. If both certificates are set in the credentials and a callback is available, the callback takes predence.
Since: 3.0
void
gnutls_pcert_deinit (gnutls_pcert_st *pcert
);
This function will deinitialize a pcert structure.
Since: 3.0
int gnutls_pcert_import_openpgp (gnutls_pcert_st *pcert
,gnutls_openpgp_crt_t crt
,unsigned int flags
);
This convenience function will import the given certificate to a
gnutls_pcert_st structure. The structure must be deinitialized
afterwards using gnutls_pcert_deinit()
;
Since: 3.0
int gnutls_pcert_import_openpgp_raw (gnutls_pcert_st *pcert
,const gnutls_datum_t *cert
,gnutls_openpgp_crt_fmt_t format
,gnutls_openpgp_keyid_t keyid
,unsigned int flags
);
This convenience function will import the given certificate to a
gnutls_pcert_st structure. The structure must be deinitialized
afterwards using gnutls_pcert_deinit()
;
pcert |
The pcert structure |
|
cert |
The raw certificate to be imported |
|
format |
The format of the certificate |
|
keyid |
The key ID to use (NULL for the master key) |
|
flags |
zero for now |
Since: 3.0
int gnutls_pcert_import_x509 (gnutls_pcert_st *pcert
,gnutls_x509_crt_t crt
,unsigned int flags
);
This convenience function will import the given certificate to a
gnutls_pcert_st structure. The structure must be deinitialized
afterwards using gnutls_pcert_deinit()
;
Since: 3.0
int gnutls_pcert_import_x509_raw (gnutls_pcert_st *pcert
,const gnutls_datum_t *cert
,gnutls_x509_crt_fmt_t format
,unsigned int flags
);
This convenience function will import the given certificate to a
gnutls_pcert_st structure. The structure must be deinitialized
afterwards using gnutls_pcert_deinit()
;
pcert |
The pcert structure |
|
cert |
The raw certificate to be imported |
|
format |
The format of the certificate |
|
flags |
zero for now |
Since: 3.0
int gnutls_pcert_list_import_x509_raw (gnutls_pcert_st *pcerts
,unsigned int *pcert_max
,const gnutls_datum_t *data
,gnutls_x509_crt_fmt_t format
,unsigned int flags
);
This function will convert the given PEM encoded certificate list
to the native gnutls_x509_crt_t format. The output will be stored
in certs
. They will be automatically initialized.
If the Certificate is PEM encoded it should have a header of "X509 CERTIFICATE", or "CERTIFICATE".
pcerts |
The structures to store the parsed certificate. Must not be initialized. |
|
pcert_max |
Initially must hold the maximum number of certs. It will be updated with the number of certs available. |
|
data |
The certificates. |
|
format |
One of DER or PEM. |
|
flags |
must be (0) or an OR'd sequence of gnutls_certificate_import_flags. |
Since: 3.0
int gnutls_privkey_decrypt_data (gnutls_privkey_t key
,unsigned int flags
,const gnutls_datum_t *ciphertext
,gnutls_datum_t *plaintext
);
This function will decrypt the given data using the algorithm supported by the private key.
key |
Holds the key |
|
flags |
zero for now |
|
ciphertext |
holds the data to be decrypted |
|
plaintext |
will contain the decrypted data, allocated with |
Since: 2.12.0
int (*gnutls_privkey_decrypt_func) (gnutls_privkey_t key
,void *userdata
,const gnutls_datum_t *ciphertext
,gnutls_datum_t *plaintext
);
void
gnutls_privkey_deinit (gnutls_privkey_t key
);
This function will deinitialize a private key structure.
Since: 2.12.0
void (*gnutls_privkey_deinit_func) (gnutls_privkey_t key
,void *userdata
);
int gnutls_privkey_get_pk_algorithm (gnutls_privkey_t key
,unsigned int *bits
);
This function will return the public key algorithm of a private key and if possible will return a number of bits that indicates the security parameter of the key.
key |
should contain a gnutls_privkey_t type |
|
bits |
If set will return the number of bits of the parameters (may be NULL) |
a member of the gnutls_pk_algorithm_t enumeration on success, or a negative error code on error.
Since: 2.12.0
int gnutls_privkey_import_ext (gnutls_privkey_t pkey
,gnutls_pk_algorithm_t pk
,void *userdata
,gnutls_privkey_sign_func sign_func
,gnutls_privkey_decrypt_func decrypt_func
,unsigned int flags
);
This function will associate the given callbacks with the gnutls_privkey_t type. At least one of the two callbacks must be non-null.
Note that the signing function is supposed to "raw" sign data, i.e., without any hashing or preprocessing. In case of RSA the DigestInfo will be provided, and the signing function is expected to do the PKCS #1 1.5 padding and the exponentiation.
See also gnutls_privkey_import_ext3()
.
pkey |
The private key |
|
pk |
The public key algorithm |
|
userdata |
private data to be provided to the callbacks |
|
sign_func |
callback for signature operations |
|
decrypt_func |
callback for decryption operations |
|
flags |
Flags for the import |
Since: 3.0
int gnutls_privkey_import_ext2 (gnutls_privkey_t pkey
,gnutls_pk_algorithm_t pk
,void *userdata
,gnutls_privkey_sign_func sign_func
,gnutls_privkey_decrypt_func decrypt_func
,gnutls_privkey_deinit_func deinit_func
,unsigned int flags
);
This function will associate the given callbacks with the
gnutls_privkey_t type. At least one of the two callbacks
must be non-null. If a deinitialization function is provided
then flags is assumed to contain GNUTLS_PRIVKEY_IMPORT_AUTO_RELEASE
.
Note that the signing function is supposed to "raw" sign data, i.e., without any hashing or preprocessing. In case of RSA the DigestInfo will be provided, and the signing function is expected to do the PKCS #1 1.5 padding and the exponentiation.
See also gnutls_privkey_import_ext3()
.
pkey |
The private key |
|
pk |
The public key algorithm |
|
userdata |
private data to be provided to the callbacks |
|
flags |
Flags for the import |
Since: 3.1
int gnutls_privkey_import_openpgp (gnutls_privkey_t pkey
,gnutls_openpgp_privkey_t key
,unsigned int flags
);
This function will import the given private key to the abstract gnutls_privkey_t type.
The gnutls_openpgp_privkey_t object must not be deallocated during the lifetime of this structure. The subkey set as preferred will be used, or the master key otherwise.
flags
might be zero or one of GNUTLS_PRIVKEY_IMPORT_AUTO_RELEASE
and GNUTLS_PRIVKEY_IMPORT_COPY
.
Since: 2.12.0
int gnutls_privkey_import_openpgp_raw (gnutls_privkey_t pkey
,const gnutls_datum_t *data
,gnutls_openpgp_crt_fmt_t format
,const gnutls_openpgp_keyid_t keyid
,const char *password
);
This function will import the given private key to the abstract gnutls_privkey_t type.
pkey |
The private key |
|
data |
The private key data to be imported |
|
format |
The format of the private key |
|
keyid |
The key id to use (optional) |
|
password |
A password (optional) |
Since: 3.1.0
int gnutls_privkey_import_pkcs11 (gnutls_privkey_t pkey
,gnutls_pkcs11_privkey_t key
,unsigned int flags
);
This function will import the given private key to the abstract gnutls_privkey_t type.
The gnutls_pkcs11_privkey_t object must not be deallocated during the lifetime of this structure.
flags
might be zero or one of GNUTLS_PRIVKEY_IMPORT_AUTO_RELEASE
and GNUTLS_PRIVKEY_IMPORT_COPY
.
Since: 2.12.0
int gnutls_privkey_import_pkcs11_url (gnutls_privkey_t key
,const char *url
);
This function will import a PKCS 11 private key to a gnutls_private_key_t type.
Since: 3.1.0
int gnutls_privkey_import_tpm_raw (gnutls_privkey_t pkey
,const gnutls_datum_t *fdata
,gnutls_tpmkey_fmt_t format
,const char *srk_password
,const char *key_password
,unsigned int flags
);
This function will import the given private key to the abstract gnutls_privkey_t type.
With respect to passwords the same as in gnutls_privkey_import_tpm_url()
apply.
pkey |
The private key |
|
fdata |
The TPM key to be imported |
|
format |
The format of the private key |
|
srk_password |
The password for the SRK key (optional) |
|
key_password |
A password for the key (optional) |
|
flags |
should be zero |
Since: 3.1.0
int gnutls_privkey_import_tpm_url (gnutls_privkey_t pkey
,const char *url
,const char *srk_password
,const char *key_password
,unsigned int flags
);
This function will import the given private key to the abstract gnutls_privkey_t type.
Note that unless GNUTLS_PRIVKEY_DISABLE_CALLBACKS
is specified, if incorrect (or NULL) passwords are given
the PKCS11 callback functions will be used to obtain the
correct passwords. Otherwise if the SRK password is wrong
GNUTLS_E_TPM_SRK_PASSWORD_ERROR
is returned and if the key password
is wrong or not provided then GNUTLS_E_TPM_KEY_PASSWORD_ERROR
is returned.
pkey |
The private key |
|
url |
The URL of the TPM key to be imported |
|
srk_password |
The password for the SRK key (optional) |
|
key_password |
A password for the key (optional) |
|
flags |
One of the GNUTLS_PRIVKEY_* flags |
Since: 3.1.0
int gnutls_privkey_import_url (gnutls_privkey_t key
,const char *url
,unsigned int flags
);
This function will import a PKCS11 or TPM URL as a
private key. The supported URL types can be checked
using gnutls_url_is_supported()
.
Since: 3.1.0
int gnutls_privkey_import_x509 (gnutls_privkey_t pkey
,gnutls_x509_privkey_t key
,unsigned int flags
);
This function will import the given private key to the abstract gnutls_privkey_t type.
The gnutls_x509_privkey_t object must not be deallocated during the lifetime of this structure.
flags
might be zero or one of GNUTLS_PRIVKEY_IMPORT_AUTO_RELEASE
and GNUTLS_PRIVKEY_IMPORT_COPY
.
Since: 2.12.0
int gnutls_privkey_import_x509_raw (gnutls_privkey_t pkey
,const gnutls_datum_t *data
,gnutls_x509_crt_fmt_t format
,const char *password
,unsigned int flags
);
This function will import the given private key to the abstract gnutls_privkey_t type.
The supported formats are basic unencrypted key, PKCS8, PKCS12, and the openssl format.
pkey |
The private key |
|
data |
The private key data to be imported |
|
format |
The format of the private key |
|
password |
A password (optional) |
|
flags |
an ORed sequence of gnutls_pkcs_encrypt_flags_t |
Since: 3.1.0
int
gnutls_privkey_init (gnutls_privkey_t *key
);
This function will initialize a private key object. The object can be used to generate, import, and perform cryptographic operations on the associated private key.
Note that when the underlying private key is a PKCS11 key (i.e.,
when imported with a PKCS11 URI), the limitations of gnutls_pkcs11_privkey_init()
apply to this object as well. In versions of GnuTLS later than 3.5.11 the object
is protected using locks and a single gnutls_privkey_t
can be re-used
by many threads. However, for performance it is recommended to utilize
one object per key per thread.
Since: 2.12.0
void gnutls_privkey_set_pin_function (gnutls_privkey_t key
,gnutls_pin_callback_t fn
,void *userdata
);
This function will set a callback function to be used when required to access the object. This function overrides any other global PIN functions.
Note that this function must be called right after initialization to have effect.
key |
A key of type gnutls_privkey_t |
|
fn |
the callback |
|
userdata |
data associated with the callback |
Since: 3.1.0
int gnutls_privkey_sign_data (gnutls_privkey_t signer
,gnutls_digest_algorithm_t hash
,unsigned int flags
,const gnutls_datum_t *data
,gnutls_datum_t *signature
);
This function will sign the given data using a signature algorithm supported by the private key. Signature algorithms are always used together with a hash functions. Different hash functions may be used for the RSA algorithm, but only the SHA family for the DSA keys.
You may use gnutls_pubkey_get_preferred_hash_algorithm()
to determine
the hash algorithm.
signer |
Holds the key |
|
hash |
should be a digest algorithm |
|
flags |
Zero or one of |
|
data |
holds the data to be signed |
|
signature |
will contain the signature allocated with |
Since: 2.12.0
int (*gnutls_privkey_sign_func) (gnutls_privkey_t key
,void *userdata
,const gnutls_datum_t *raw_data
,gnutls_datum_t *signature
);
int gnutls_privkey_sign_hash (gnutls_privkey_t signer
,gnutls_digest_algorithm_t hash_algo
,unsigned int flags
,const gnutls_datum_t *hash_data
,gnutls_datum_t *signature
);
This function will sign the given hashed data using a signature algorithm supported by the private key. Signature algorithms are always used together with a hash functions. Different hash functions may be used for the RSA algorithm, but only SHA-XXX for the DSA keys.
You may use gnutls_pubkey_get_preferred_hash_algorithm()
to determine
the hash algorithm.
Note that if GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA
flag is specified this function
will ignore hash_algo
and perform a raw PKCS1 signature.
signer |
Holds the signer's key |
|
hash_algo |
The hash algorithm used |
|
flags |
Zero or one of |
|
hash_data |
holds the data to be signed |
|
signature |
will contain newly allocated signature |
Since: 2.12.0
void
gnutls_pubkey_deinit (gnutls_pubkey_t key
);
This function will deinitialize a public key structure.
Since: 2.12.0
int gnutls_pubkey_encrypt_data (gnutls_pubkey_t key
,unsigned int flags
,const gnutls_datum_t *plaintext
,gnutls_datum_t *ciphertext
);
This function will encrypt the given data, using the public
key. On success the ciphertext
will be allocated using gnutls_malloc()
.
key |
Holds the public key |
|
flags |
should be 0 for now |
|
plaintext |
The data to be encrypted |
|
ciphertext |
contains the encrypted data |
Since: 3.0
int gnutls_pubkey_export (gnutls_pubkey_t key
,gnutls_x509_crt_fmt_t format
,void *output_data
,size_t *output_data_size
);
This function will export the public key to DER or PEM format. The contents of the exported data is the SubjectPublicKeyInfo X.509 structure.
If the buffer provided is not long enough to hold the output, then
*output_data_size is updated and GNUTLS_E_SHORT_MEMORY_BUFFER
will
be returned.
If the structure is PEM encoded, it will have a header of "BEGIN CERTIFICATE".
key |
Holds the certificate |
|
format |
the format of output params. One of PEM or DER. |
|
output_data |
will contain a certificate PEM or DER encoded |
|
output_data_size |
holds the size of output_data (and will be replaced by the actual size of parameters) |
Since: 2.12.0
int gnutls_pubkey_export2 (gnutls_pubkey_t key
,gnutls_x509_crt_fmt_t format
,gnutls_datum_t *out
);
This function will export the public key to DER or PEM format. The contents of the exported data is the SubjectPublicKeyInfo X.509 structure.
The output buffer will be allocated using gnutls_malloc()
.
If the structure is PEM encoded, it will have a header of "BEGIN CERTIFICATE".
key |
Holds the certificate |
|
format |
the format of output params. One of PEM or DER. |
|
out |
will contain a certificate PEM or DER encoded |
Since: 3.1.3
int gnutls_pubkey_get_key_id (gnutls_pubkey_t key
,unsigned int flags
,unsigned char *output_data
,size_t *output_data_size
);
This function will return a unique ID that depends on the public key parameters. This ID can be used in checking whether a certificate corresponds to the given public key.
If the buffer provided is not long enough to hold the output, then
*output_data_size is updated and GNUTLS_E_SHORT_MEMORY_BUFFER
will
be returned. The output will normally be a SHA-1 hash output,
which is 20 bytes.
key |
Holds the public key |
|
flags |
should be one of the flags from |
|
output_data |
will contain the key ID |
|
output_data_size |
holds the size of output_data (and will be replaced by the actual size of parameters) |
Since: 2.12.0
int gnutls_pubkey_get_key_usage (gnutls_pubkey_t key
,unsigned int *usage
);
This function will return the key usage of the public key.
key |
should contain a gnutls_pubkey_t type |
|
usage |
If set will return the number of bits of the parameters (may be NULL) |
Since: 2.12.0
int gnutls_pubkey_get_openpgp_key_id (gnutls_pubkey_t key
,unsigned int flags
,unsigned char *output_data
,size_t *output_data_size
,unsigned int *subkey
);
This function returns the OpenPGP key ID of the corresponding key. The key is a unique ID that depends on the public key parameters.
If the flag GNUTLS_PUBKEY_GET_OPENPGP_FINGERPRINT
is specified
this function returns the fingerprint of the master key.
If the buffer provided is not long enough to hold the output, then
*output_data_size is updated and GNUTLS_E_SHORT_MEMORY_BUFFER
will
be returned. The output is GNUTLS_OPENPGP_KEYID_SIZE
bytes long.
key |
Holds the public key |
|
flags |
should be 0 or |
|
output_data |
will contain the key ID |
|
output_data_size |
holds the size of output_data (and will be replaced by the actual size of parameters) |
|
subkey |
Will be non zero if the key ID corresponds to a subkey |
Since: 3.0
int gnutls_pubkey_get_pk_algorithm (gnutls_pubkey_t key
,unsigned int *bits
);
This function will return the public key algorithm of a public key and if possible will return a number of bits that indicates the security parameter of the key.
key |
should contain a gnutls_pubkey_t type |
|
bits |
If set will return the number of bits of the parameters (may be NULL) |
a member of the gnutls_pk_algorithm_t enumeration on success, or a negative error code on error.
Since: 2.12.0
int gnutls_pubkey_get_preferred_hash_algorithm (gnutls_pubkey_t key
,gnutls_digest_algorithm_t *hash
,unsigned int *mand
);
This function will read the certificate and return the appropriate digest algorithm to use for signing with this certificate. Some certificates (i.e. DSA might not be able to sign without the preferred algorithm).
To get the signature algorithm instead of just the hash use gnutls_pk_to_sign()
with the algorithm of the certificate/key and the provided hash
.
key |
Holds the certificate |
|
hash |
The result of the call with the hash algorithm used for signature |
|
mand |
If non zero it means that the algorithm MUST use this hash. May be NULL. |
Since: 2.12.0
int gnutls_pubkey_import (gnutls_pubkey_t key
,const gnutls_datum_t *data
,gnutls_x509_crt_fmt_t format
);
This function will import the provided public key in
a SubjectPublicKeyInfo X.509 structure to a native
gnutls_pubkey_t
type. The output will be stored
in key
. If the public key is PEM encoded it should have a header
of "PUBLIC KEY".
Since: 2.12.0
int gnutls_pubkey_import_dsa_raw (gnutls_pubkey_t key
,const gnutls_datum_t *p
,const gnutls_datum_t *q
,const gnutls_datum_t *g
,const gnutls_datum_t *y
);
This function will convert the given DSA raw parameters to the
native gnutls_pubkey_t format. The output will be stored
in key
.
key |
The structure to store the parsed key |
|
p |
holds the p |
|
q |
holds the q |
|
g |
holds the g |
|
y |
holds the y |
Since: 2.12.0
int gnutls_pubkey_import_ecc_raw (gnutls_pubkey_t key
,gnutls_ecc_curve_t curve
,const gnutls_datum_t *x
,const gnutls_datum_t *y
);
This function will convert the given elliptic curve parameters to a
gnutls_pubkey_t. The output will be stored in key
.
key |
The structure to store the parsed key |
|
curve |
holds the curve |
|
x |
holds the x |
|
y |
holds the y |
Since: 3.0
int gnutls_pubkey_import_ecc_x962 (gnutls_pubkey_t key
,const gnutls_datum_t *parameters
,const gnutls_datum_t *ecpoint
);
This function will convert the given elliptic curve parameters to a
gnutls_pubkey_t. The output will be stored in key
.
key |
The structure to store the parsed key |
|
parameters |
DER encoding of an ANSI X9.62 parameters |
|
ecpoint |
DER encoding of ANSI X9.62 ECPoint |
Since: 3.0
int gnutls_pubkey_import_openpgp (gnutls_pubkey_t key
,gnutls_openpgp_crt_t crt
,unsigned int flags
);
Imports a public key from an openpgp key. This function will import the given public key to the abstract gnutls_pubkey_t type. The subkey set as preferred will be imported or the master key otherwise.
Since: 2.12.0
int gnutls_pubkey_import_openpgp_raw (gnutls_pubkey_t pkey
,const gnutls_datum_t *data
,gnutls_openpgp_crt_fmt_t format
,const gnutls_openpgp_keyid_t keyid
,unsigned int flags
);
This function will import the given public key to the abstract gnutls_pubkey_t type.
pkey |
The public key |
|
data |
The public key data to be imported |
|
format |
The format of the public key |
|
keyid |
The key id to use (optional) |
|
flags |
Should be zero |
Since: 3.1.3
int gnutls_pubkey_import_pkcs11 (gnutls_pubkey_t key
,gnutls_pkcs11_obj_t obj
,unsigned int flags
);
Imports a public key from a pkcs11 key. This function will import the given public key to the abstract gnutls_pubkey_t type.
Since: 2.12.0
#define gnutls_pubkey_import_pkcs11_url(key, url, flags) gnutls_pubkey_import_url(key, url, flags)
This function will import a PKCS 11 certificate to a gnutls_pubkey_t structure.
key |
A key of type gnutls_pubkey_t |
|
url |
A PKCS 11 url |
|
flags |
One of GNUTLS_PKCS11_OBJ_* flags |
Since: 2.12.0
int gnutls_pubkey_import_privkey (gnutls_pubkey_t key
,gnutls_privkey_t pkey
,unsigned int usage
,unsigned int flags
);
Imports the public key from a private. This function will import the given public key to the abstract gnutls_pubkey_t type.
Note that in certain keys this operation may not be possible, e.g., in other than RSA PKCS11 keys.
key |
The public key |
|
pkey |
The private key |
|
usage |
GNUTLS_KEY_* key usage flags. |
|
flags |
should be zero |
Since: 2.12.0
int gnutls_pubkey_import_rsa_raw (gnutls_pubkey_t key
,const gnutls_datum_t *m
,const gnutls_datum_t *e
);
This function will replace the parameters in the given structure. The new parameters should be stored in the appropriate gnutls_datum.
Since: 2.12.0
int gnutls_pubkey_import_tpm_raw (gnutls_pubkey_t pkey
,const gnutls_datum_t *fdata
,gnutls_tpmkey_fmt_t format
,const char *srk_password
,unsigned int flags
);
This function will import the public key from the provided TPM key structure.
With respect to passwords the same as in
gnutls_pubkey_import_tpm_url()
apply.
pkey |
The public key |
|
fdata |
The TPM key to be imported |
|
format |
The format of the private key |
|
srk_password |
The password for the SRK key (optional) |
|
flags |
One of the GNUTLS_PUBKEY_* flags |
Since: 3.1.0
int gnutls_pubkey_import_tpm_url (gnutls_pubkey_t pkey
,const char *url
,const char *srk_password
,unsigned int flags
);
This function will import the given private key to the abstract gnutls_privkey_t type.
Note that unless GNUTLS_PUBKEY_DISABLE_CALLBACKS
is specified, if incorrect (or NULL) passwords are given
the PKCS11 callback functions will be used to obtain the
correct passwords. Otherwise if the SRK password is wrong
GNUTLS_E_TPM_SRK_PASSWORD_ERROR
is returned.
pkey |
The public key |
|
url |
The URL of the TPM key to be imported |
|
srk_password |
The password for the SRK key (optional) |
|
flags |
should be zero |
Since: 3.1.0
int gnutls_pubkey_import_url (gnutls_pubkey_t key
,const char *url
,unsigned int flags
);
This function will import a public key from the provided URL.
key |
A key of type gnutls_pubkey_t |
|
url |
A PKCS 11 url |
|
flags |
One of GNUTLS_PKCS11_OBJ_* flags |
Since: 3.1.0
int gnutls_pubkey_import_x509 (gnutls_pubkey_t key
,gnutls_x509_crt_t crt
,unsigned int flags
);
This function will import the given public key to the abstract gnutls_pubkey_t type.
Since: 2.12.0
int gnutls_pubkey_import_x509_crq (gnutls_pubkey_t key
,gnutls_x509_crq_t crq
,unsigned int flags
);
This function will import the given public key to the abstract gnutls_pubkey_t type.
Since: 3.1.5
int gnutls_pubkey_import_x509_raw (gnutls_pubkey_t pkey
,const gnutls_datum_t *data
,gnutls_x509_crt_fmt_t format
,unsigned int flags
);
This function will import the given public key to the abstract gnutls_pubkey_t type.
pkey |
The public key |
|
data |
The public key data to be imported |
|
format |
The format of the public key |
|
flags |
should be zero |
Since: 3.1.3
int
gnutls_pubkey_init (gnutls_pubkey_t *key
);
This function will initialize a public key.
Since: 2.12.0
int gnutls_pubkey_set_key_usage (gnutls_pubkey_t key
,unsigned int usage
);
This function will set the key usage flags of the public key. This is only useful if the key is to be exported to a certificate or certificate request.
key |
a certificate of type gnutls_x509_crt_t |
|
usage |
an ORed sequence of the GNUTLS_KEY_* elements. |
Since: 2.12.0
void gnutls_pubkey_set_pin_function (gnutls_pubkey_t key
,gnutls_pin_callback_t fn
,void *userdata
);
This function will set a callback function to be used when required to access the object. This function overrides any other global PIN functions.
Note that this function must be called right after initialization to have effect.
key |
A key of type gnutls_pubkey_t |
|
fn |
the callback |
|
userdata |
data associated with the callback |
Since: 3.1.0
int gnutls_pubkey_verify_data2 (gnutls_pubkey_t pubkey
,gnutls_sign_algorithm_t algo
,unsigned int flags
,const gnutls_datum_t *data
,const gnutls_datum_t *signature
);
This function will verify the given signed data, using the parameters from the certificate.
pubkey |
Holds the public key |
|
algo |
The signature algorithm used |
|
flags |
Zero or an OR list of gnutls_certificate_verify_flags |
|
data |
holds the signed data |
|
signature |
contains the signature |
In case of a verification failure GNUTLS_E_PK_SIG_VERIFY_FAILED
is returned, and zero or positive code on success. For known to be insecure
signatures this function will return GNUTLS_E_INSUFFICIENT_SECURITY
unless
the flag GNUTLS_VERIFY_ALLOW_BROKEN
is specified.
Since: 3.0
int gnutls_pubkey_verify_hash2 (gnutls_pubkey_t key
,gnutls_sign_algorithm_t algo
,unsigned int flags
,const gnutls_datum_t *hash
,const gnutls_datum_t *signature
);
This function will verify the given signed digest, using the
parameters from the public key. Note that unlike gnutls_privkey_sign_hash()
,
this function accepts a signature algorithm instead of a digest algorithm.
You can use gnutls_pk_to_sign()
to get the appropriate value.
key |
Holds the public key |
|
algo |
The signature algorithm used |
|
flags |
Zero or an OR list of gnutls_certificate_verify_flags |
|
hash |
holds the hash digest to be verified |
|
signature |
contains the signature |
In case of a verification failure GNUTLS_E_PK_SIG_VERIFY_FAILED
is returned, and zero or positive code on success.
Since: 3.0
int gnutls_x509_crl_privkey_sign (gnutls_x509_crl_t crl
,gnutls_x509_crt_t issuer
,gnutls_privkey_t issuer_key
,gnutls_digest_algorithm_t dig
,unsigned int flags
);
This function will sign the CRL with the issuer's private key, and will copy the issuer's information into the CRL.
This must be the last step in a certificate CRL since all the previously set parameters are now signed.
A known limitation of this function is, that a newly-signed CRL will not be fully functional (e.g., for signature verification), until it is exported an re-imported.
crl |
should contain a gnutls_x509_crl_t type |
|
issuer |
is the certificate of the certificate issuer |
|
issuer_key |
holds the issuer's private key |
|
dig |
The message digest to use. GNUTLS_DIG_SHA256 is the safe choice unless you know what you're doing. |
|
flags |
must be 0 |
On success, GNUTLS_E_SUCCESS
(0) is returned, otherwise a
negative error value.
Since 2.12.0
int gnutls_x509_crq_privkey_sign (gnutls_x509_crq_t crq
,gnutls_privkey_t key
,gnutls_digest_algorithm_t dig
,unsigned int flags
);
This function will sign the certificate request with a private key.
This must be the same key as the one used in
gnutls_x509_crt_set_key()
since a certificate request is self
signed.
This must be the last step in a certificate request generation since all the previously set parameters are now signed.
crq |
should contain a gnutls_x509_crq_t type |
|
key |
holds a private key |
|
dig |
The message digest to use, i.e., |
|
flags |
must be 0 |
GNUTLS_E_SUCCESS
on success, otherwise a negative error code.
GNUTLS_E_ASN1_VALUE_NOT_FOUND
is returned if you didn't set all
information in the certificate request (e.g., the version using
gnutls_x509_crq_set_version()
).
Since: 2.12.0
int gnutls_x509_crq_set_pubkey (gnutls_x509_crq_t crq
,gnutls_pubkey_t key
);
This function will set the public parameters from the given public
key to the request. The key
can be deallocated after that.
Since: 2.12.0
int gnutls_x509_crt_privkey_sign (gnutls_x509_crt_t crt
,gnutls_x509_crt_t issuer
,gnutls_privkey_t issuer_key
,gnutls_digest_algorithm_t dig
,unsigned int flags
);
This function will sign the certificate with the issuer's private key, and will copy the issuer's information into the certificate.
This must be the last step in a certificate generation since all the previously set parameters are now signed.
A known limitation of this function is, that a newly-signed certificate will not be fully functional (e.g., for signature verification), until it is exported an re-imported.
crt |
a certificate of type gnutls_x509_crt_t |
|
issuer |
is the certificate of the certificate issuer |
|
issuer_key |
holds the issuer's private key |
|
dig |
The message digest to use, |
|
flags |
must be 0 |
int gnutls_x509_crt_set_pubkey (gnutls_x509_crt_t crt
,gnutls_pubkey_t key
);
This function will set the public parameters from the given public
key to the certificate. The key
can be deallocated after that.
Since: 2.12.0
#define GNUTLS_PUBKEY_VERIFY_FLAG_TLS_RSA GNUTLS_PUBKEY_VERIFY_FLAG_TLS1_RSA
struct gnutls_privkey_st { gnutls_privkey_type_t type; gnutls_pk_algorithm_t pk_algorithm; union { gnutls_x509_privkey_t x509; #ifdef ENABLE_PKCS11 gnutls_pkcs11_privkey_t pkcs11; #endif #ifdef ENABLE_OPENPGP gnutls_openpgp_privkey_t openpgp; #endif struct { gnutls_privkey_sign_func sign_func; gnutls_privkey_decrypt_func decrypt_func; gnutls_privkey_deinit_func deinit_func; gnutls_privkey_info_func info_func; void *userdata; } ext; } key; unsigned int flags; gnutls_sign_algorithm_t preferred_sign_algo; struct pin_info_st pin; };
struct gnutls_pubkey_st { gnutls_pk_algorithm_t pk_algorithm; unsigned int bits; /* an indication of the security parameter */ /* the size of params depends on the public * key algorithm * RSA: [0] is modulus * [1] is public exponent * DSA: [0] is p * [1] is q * [2] is g * [3] is public key */ gnutls_pk_params_st params; #ifdef ENABLE_OPENPGP uint8_t openpgp_key_id[GNUTLS_OPENPGP_KEYID_SIZE]; unsigned int openpgp_key_id_set; uint8_t openpgp_key_fpr[GNUTLS_OPENPGP_V4_FINGERPRINT_SIZE]; unsigned int openpgp_key_fpr_set:1; #endif unsigned int key_usage; /* bits from GNUTLS_KEY_* */ struct pin_info_st pin; };