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EVP_PKEY_ASN1_GET_... DragonFly Library Functions Manual EVP_PKEY_ASN1_GET_...


NAME

     EVP_PKEY_asn1_get_count, EVP_PKEY_asn1_get0, EVP_PKEY_get0_asn1,
     EVP_PKEY_asn1_find, EVP_PKEY_asn1_find_str, EVP_PKEY_asn1_get0_info --
     enumerate public key ASN.1 methods


SYNOPSIS

     #include <openssl/evp.h>

     int
     EVP_PKEY_asn1_get_count(void);

     const EVP_PKEY_ASN1_METHOD *
     EVP_PKEY_asn1_get0(int idx);

     const EVP_PKEY_ASN1_METHOD *
     EVP_PKEY_get0_asn1(const EVP_PKEY *pkey);

     const EVP_PKEY_ASN1_METHOD *
     EVP_PKEY_asn1_find(ENGINE **pe, int type);

     const EVP_PKEY_ASN1_METHOD *
     EVP_PKEY_asn1_find_str(ENGINE **pe, const char *str, int len);

     int
     EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id,
	 int *ppkey_flags, const char **pinfo, const char **ppem_str,
	 const EVP_PKEY_ASN1_METHOD *ameth);


DESCRIPTION

     EVP_PKEY_asn1_get_count() returns a count of the number of public key
     ASN.1 methods available.  It includes standard methods and any methods
     added by the application.

     EVP_PKEY_asn1_get0() returns the public key ASN.1 method idx.  The value
     of idx must be in the range from zero to EVP_PKEY_asn1_get_count() - 1.

     EVP_PKEY_asn1_find() looks up the method with NID type.  If pe is not
     NULL, it first looks for an engine implementing a method for the NID
     type.  If one is found, *pe is set to that engine and the method from
     that engine is returned instead.

     EVP_PKEY_asn1_find_str() looks up the method with PEM type string str.
     Just like EVP_PKEY_asn1_find(), if pe is not NULL, methods from engines
     are preferred.

     EVP_PKEY_asn1_get0_info() retrieves the public key ID, the base public
     key ID (both NIDs), any flags, the method description and the PEM type
     string associated with the public key ASN.1 method *ameth.

     EVP_PKEY_asn1_get_count(), EVP_PKEY_asn1_get0(), EVP_PKEY_asn1_find() and
     EVP_PKEY_asn1_find_str() are not thread safe, but as long as all
     EVP_PKEY_ASN1_METHOD objects are added before the application gets
     threaded, using them is safe.  See EVP_PKEY_asn1_add0(3).


RETURN VALUES

     EVP_PKEY_asn1_get_count() returns the number of available public key
     methods.

     EVP_PKEY_asn1_get0() returns a public key method or NULL if idx is out of
     range.

     EVP_PKEY_get0_asn1() returns the public key method used by pkey.

     EVP_PKEY_asn1_get0_info() returns 1 on success or 0 on failure.


SEE ALSO

     EVP_PKEY_asn1_new(3), EVP_PKEY_base_id(3)


HISTORY

     These functions first appeared in OpenSSL 1.0.0 and have been available
     since OpenBSD 4.9.

DragonFly 5.5			 May 13, 2018			 DragonFly 5.5

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