4746f25ac6
[skip ci] Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7829)
48 lines
1.2 KiB
Text
48 lines
1.2 KiB
Text
=pod
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=head1 NAME
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DSA_size, DSA_bits, DSA_security_bits - get DSA signature size, key bits or security bits
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=head1 SYNOPSIS
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#include <openssl/dsa.h>
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int DSA_size(const DSA *dsa);
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int DSA_bits(const DSA *dsa);
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int DSA_security_bits(const DSA *dsa);
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=head1 DESCRIPTION
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DSA_size() returns the maximum size of an ASN.1 encoded DSA signature
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for key B<dsa> in bytes. It can be used to determine how much memory must
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be allocated for a DSA signature.
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B<dsa-E<gt>q> must not be B<NULL>.
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DSA_bits() returns the number of bits in key B<dsa>: this is the number
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of bits in the B<p> parameter.
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DSA_security_bits() returns the number of security bits of the given B<dsa>
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key. See L<BN_security_bits(3)>.
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=head1 RETURN VALUES
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DSA_size() returns the signature size in bytes.
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DSA_bits() returns the number of bits in the key.
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=head1 SEE ALSO
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L<DSA_new(3)>, L<DSA_sign(3)>
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=head1 COPYRIGHT
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Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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