Sortix nightly manual
This manual documents Sortix nightly, a development build that has not been officially released. You can instead view this document in the latest official manual.
|X509_PUBKEY_NEW(3)||Library Functions Manual||X509_PUBKEY_NEW(3)|
X.509 SubjectPublicKeyInfo structure
#include <openssl/x509.h>X509_PUBKEY *
X509_PUBKEY_free(X509_PUBKEY *a); int
X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey); EVP_PKEY *
X509_PUBKEY_get0(X509_PUBKEY *key); EVP_PKEY *
X509_PUBKEY_get(X509_PUBKEY *key); X509_PUBKEY *
d2i_X509_PUBKEY(X509_PUBKEY **val_out, const unsigned char **der_in, long length); int
i2d_X509_PUBKEY(X509_PUBKEY *val_in, unsigned char **der_out); EVP_PKEY *
d2i_PUBKEY(EVP_PKEY **val_out, const unsigned char **der_in, long length); int
i2d_PUBKEY(EVP_PKEY *val_in, unsigned char **der_out); EVP_PKEY *
d2i_PUBKEY_bio(BIO *bp, EVP_PKEY **val_out); EVP_PKEY *
d2i_PUBKEY_fp(FILE *fp, EVP_PKEY **val_out); int
i2d_PUBKEY_fp(FILE *fp, EVP_PKEY *val_in); int
i2d_PUBKEY_bio(BIO *bp, EVP_PKEY *val_in); int
X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, int ptype, void *pval, unsigned char *penc, int penclen); int
X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, const unsigned char **pk, int *ppklen, X509_ALGOR **pa, X509_PUBKEY *pub);
X509_PUBKEY_new() allocates and initializes an X509_PUBKEY structure.
X509_PUBKEY_free() frees up the X509_PUBKEY structure a. If a is a
NULLpointer, 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.
i2d_PUBKEY() decode and encode an ASN.1 SubjectPublicKeyInfo structure using either the X509_PUBKEY or the EVP_PKEY object type, respectively. For details about the semantics, examples, caveats, and bugs, see ASN1_item_d2i(3).
i2d_PUBKEY_fp() are similar to
i2d_PUBKEY() 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.
NULLand 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() returns an internal pointer or
NULLif an error occurs.
X509_PUBKEY_get() returns a pointer to an object that had its reference count incremented or
NULLif an error occurs.
d2i_PUBKEY_fp() return a pointer to a valid object or
NULLif an error occurs.
i2d_PUBKEY() return the number of bytes successfully encoded or a negative value if an error occurs.
i2d_PUBKEY_bio() return 1 for success and 0 if an error occurred.
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):
- The public key uses an algorithm unsupported by EVP_PKEY_set_type(3).
- 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.
- Memory was exhausted when trying to allocate the new EVP_PKEY object.
NULLor 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), X509_get_pubkey(3), X509_new(3)
X509_PUBKEY_free() appeared in SSLeay 0.4 or earlier.
i2d_X509_PUBKEY() first appeared in SSLeay 0.5.1.
X509_PUBKEY_get() first appeared in SSLeay 0.8.0. These functions have been available since OpenBSD 2.4.
i2d_PUBKEY() first appeared in OpenSSL 0.9.5 and have been available since OpenBSD 2.7.
i2d_PUBKEY_bio() first appeared in OpenSSL 0.9.6 and have been available since OpenBSD 2.9.
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.
|October 26, 2021||Debian|