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e52b421575
The reported issue related to EC_KEY deprecations Fixes #14545 Searches were done in the pod files for all libcrypto.num entries containing DEPRECATEDIN_3_0 to find additional missing entries. Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14564)
65 lines
1.8 KiB
Plaintext
65 lines
1.8 KiB
Plaintext
=pod
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=head1 NAME
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DSA_do_sign, DSA_do_verify - raw DSA signature operations
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=head1 SYNOPSIS
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#include <openssl/dsa.h>
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Deprecated since OpenSSL 3.0, can be hidden entirely by defining
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B<OPENSSL_API_COMPAT> with a suitable version value, see
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L<openssl_user_macros(7)>:
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DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
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int DSA_do_verify(const unsigned char *dgst, int dgst_len,
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DSA_SIG *sig, DSA *dsa);
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=head1 DESCRIPTION
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All of the functions described on this page are deprecated.
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Applications should instead use L<EVP_PKEY_sign_init(3)>, L<EVP_PKEY_sign(3)>,
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L<EVP_PKEY_verify_init(3)> and L<EVP_PKEY_verify(3)>.
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DSA_do_sign() computes a digital signature on the B<len> byte message
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digest B<dgst> using the private key B<dsa> and returns it in a
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newly allocated B<DSA_SIG> structure.
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L<DSA_sign_setup(3)> may be used to precompute part
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of the signing operation in case signature generation is
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time-critical.
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DSA_do_verify() verifies that the signature B<sig> matches a given
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message digest B<dgst> of size B<len>. B<dsa> is the signer's public
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key.
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=head1 RETURN VALUES
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DSA_do_sign() returns the signature, NULL on error. DSA_do_verify()
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returns 1 for a valid signature, 0 for an incorrect signature and -1
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on error. The error codes can be obtained by
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L<ERR_get_error(3)>.
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=head1 SEE ALSO
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L<DSA_new(3)>, L<ERR_get_error(3)>, L<RAND_bytes(3)>,
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L<DSA_SIG_new(3)>,
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L<DSA_sign(3)>
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=head1 HISTORY
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All of these functions were deprecated in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2000-2021 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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