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0c497e96c4
Add EVP_PKEY_up_ref() documentation and fix various typos. Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
53 lines
1.3 KiB
Plaintext
53 lines
1.3 KiB
Plaintext
=pod
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=head1 NAME
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EVP_PKEY_new, EVP_PKEY_up_ref, EVP_PKEY_free - private key allocation functions.
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=head1 SYNOPSIS
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#include <openssl/evp.h>
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EVP_PKEY *EVP_PKEY_new(void);
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void EVP_PKEY_up_ref(EVP_PKEY *key);
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void EVP_PKEY_free(EVP_PKEY *key);
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=head1 DESCRIPTION
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The EVP_PKEY_new() function allocates an empty B<EVP_PKEY> structure which is
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used by OpenSSL to store private keys. The reference count is set to B<1>.
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EVP_PKEY_up_ref() increments the reference count of B<key>.
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EVP_PKEY_free() decrements the reference count of B<key> and, if the reference
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count is zero, frees it up. If B<key> is NULL, nothing is done.
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=head1 NOTES
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The B<EVP_PKEY> structure is used by various OpenSSL functions which require a
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general private key without reference to any particular algorithm.
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The structure returned by EVP_PKEY_new() is empty. To add a private key to this
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empty structure the functions described in L<EVP_PKEY_set1_RSA(3)> should be
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used.
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=head1 RETURN VALUES
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EVP_PKEY_new() returns either the newly allocated B<EVP_PKEY> structure or
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B<NULL> if an error occurred.
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EVP_PKEY_up_ref() and EVP_PKEY_free() do not return a value.
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=head1 SEE ALSO
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L<EVP_PKEY_set1_RSA(3)>
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=head1 HISTORY
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EVP_PKEY_new() and EVP_PKEY_free() exist in all versions of OpenSSL.
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EVP_PKEY_up_ref() was first added to OpenSSL 1.1.0.
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=cut
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