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X509_PUBKEY_NEW(3) DragonFly Library Functions Manual X509_PUBKEY_NEW(3)
X509_PUBKEY_new, X509_PUBKEY_free, X509_PUBKEY_set, X509_PUBKEY_get0,
X509_PUBKEY_get, d2i_PUBKEY, i2d_PUBKEY, d2i_PUBKEY_bio, d2i_PUBKEY_fp,
i2d_PUBKEY_fp, i2d_PUBKEY_bio, X509_PUBKEY_set0_param,
X509_PUBKEY_get0_param - X.509 SubjectPublicKeyInfo structure
X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey);
d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length);
i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp);
d2i_PUBKEY_bio(BIO *bp, EVP_PKEY **a);
d2i_PUBKEY_fp(FILE *fp, EVP_PKEY **a);
i2d_PUBKEY_fp(FILE *fp, EVP_PKEY *pkey);
i2d_PUBKEY_bio(BIO *bp, EVP_PKEY *pkey);
X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, int ptype,
void *pval, unsigned char *penc, int penclen);
X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, const unsigned char **pk,
int *ppklen, X509_ALGOR **pa, X509_PUBKEY *pub);
The X509_PUBKEY structure represents the ASN.1 SubjectPublicKeyInfo
structure defined in RFC 5280 section 4.1 and used in certificates and
X509_PUBKEY_new() allocates and initializes an X509_PUBKEY structure.
X509_PUBKEY_free() frees up the X509_PUBKEY structure a. If a is a NULL
pointer, no action occurs.
X509_PUBKEY_set() sets the public key in *x to the public key contained
in the EVP_PKEY structure pkey. If *x is not NULL, any existing public
key structure will be freed.
X509_PUBKEY_get0() returns the public key contained in key. The returned
value is an internal pointer which must not be freed after use.
X509_PUBKEY_get() is similar to X509_PUBKEY_get0() except that the
reference count on the returned key is incremented so it must be freed
using EVP_PKEY_free(3) after use.
d2i_PUBKEY() and i2d_PUBKEY() decode and encode an EVP_PKEY structure
using SubjectPublicKeyInfo format. For details about the semantics,
examples, caveats, and bugs, see ASN1_item_d2i(3). d2i_PUBKEY_bio(),
d2i_PUBKEY_fp(), i2d_PUBKEY_bio() and i2d_PUBKEY_fp() are similar except
they decode or encode using a BIO or FILE pointer.
X509_PUBKEY_set0_param() sets the public key parameters of pub. The OID
associated with the algorithm is set to aobj. The type of the algorithm
parameters is set to ptype using the structure pval. The encoding of the
public key itself is set to the penclen bytes contained in buffer penc.
On success ownership of all the supplied parameters is passed to pub so
they must not be freed after the call.
X509_PUBKEY_get0_param() retrieves the public key parameters from pub,
*ppkalg is set to the associated OID and the encoding consists of *ppklen
bytes at *pk, and *pa is set to the associated AlgorithmIdentifier for
the public key. If the value of any of these parameters is not required,
it can be set to NULL. All of the retrieved pointers are internal and
must not be freed after the call.
If the allocation fails, X509_PUBKEY_new() returns NULL and sets an error
code that can be obtained by ERR_get_error(3). Otherwise it returns a
pointer to the newly allocated structure.
X509_PUBKEY_get0(), X509_PUBKEY_get(), d2i_PUBKEY(), d2i_PUBKEY_bio(),
and d2i_PUBKEY_fp() return a pointer to an EVP_PKEY structure or NULL if
an error occurs.
i2d_PUBKEY() returns the number of bytes successfully encoded or a
negative value if an error occurs.
X509_PUBKEY_set(), X509_PUBKEY_set0_param(), X509_PUBKEY_get0_param(),
i2d_PUBKEY_fp(), and i2d_PUBKEY_bio() return 1 for success and 0 if an
After failure of X509_PUBKEY_get0() or X509_PUBKEY_get(), one of the
following diagnostics can be retrieved with ERR_get_error(3),
ERR_GET_REASON(3), and ERR_reason_error_string(3):
X509_R_UNSUPPORTED_ALGORITHM "unsupported algorithm"
The public key uses an algorithm unsupported by
X509_R_METHOD_NOT_SUPPORTED "method not supported"
While the algorithm is known to EVP_PKEY_set_type(3), using it
for decoding is not supported.
X509_R_PUBLIC_KEY_DECODE_ERROR "public key decode error"
Decoding the public key failed.
ERR_R_MALLOC_FAILURE "malloc failure"
Memory was exhausted when trying to allocate the new EVP_PKEY
If key is NULL or does not contain a public key, these functions fail but
no error is pushed onto the stack.
d2i_X509(3), EVP_PKEY_asn1_set_public(3), X509_ALGOR_new(3),
RFC 5280: Internet X.509 Public Key Infrastructure Certificate and
Certificate Revocation List (CRL) Profile
X509_PUBKEY_new() and X509_PUBKEY_free() appeared in SSLeay 0.4 or
earlier. X509_PUBKEY_set() and X509_PUBKEY_get() first appeared in
SSLeay 0.8.0. These functions have been available since OpenBSD 2.4.
d2i_PUBKEY() and i2d_PUBKEY() first appeared in OpenSSL 0.9.5 and have
been available since OpenBSD 2.7.
d2i_PUBKEY_bio(), d2i_PUBKEY_fp(), i2d_PUBKEY_fp(), and i2d_PUBKEY_bio()
first appeared in OpenSSL 0.9.6 and have been available since
X509_PUBKEY_set0_param() and X509_PUBKEY_get0_param() first appeared in
OpenSSL 1.0.0 and have been available since OpenBSD 4.9.
X509_PUBKEY_get0() first appeared in OpenSSL 1.1.0 and has been available
since OpenBSD 6.3.
DragonFly 5.9-DEVELOPMENT June 19, 2020 DragonFly 5.9-DEVELOPMENT