mirror of https://github.com/openssl/openssl.git
80 lines
2.2 KiB
Plaintext
80 lines
2.2 KiB
Plaintext
=pod
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=head1 NAME
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EVP_SIGNATURE-DSA
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- The B<EVP_PKEY> DSA signature implementation
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=head1 DESCRIPTION
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Support for computing DSA signatures.
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See L<EVP_PKEY-DSA(7)> for information related to DSA keys.
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As part of FIPS 140-3 DSA is not longer FIPS approved for key generation and
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signature validation, but is still allowed for signature verification.
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=head2 Signature Parameters
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The following signature parameters can be set using EVP_PKEY_CTX_set_params().
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This may be called after EVP_PKEY_sign_init() or EVP_PKEY_verify_init(),
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and before calling EVP_PKEY_sign() or EVP_PKEY_verify(). They may also be set
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using EVP_PKEY_sign_init_ex() or EVP_PKEY_verify_init_ex().
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=over 4
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=item "digest" (B<OSSL_SIGNATURE_PARAM_DIGEST>) <UTF8 string>
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=item "properties" (B<OSSL_SIGNATURE_PARAM_PROPERTIES>) <UTF8 string>
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=item "nonce-type" (B<OSSL_SIGNATURE_PARAM_NONCE_TYPE>) <unsigned integer>
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=item "key-check" (B<OSSL_SIGNATURE_PARAM_FIPS_KEY_CHECK>) <integer>
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=item "digest-check" (B<OSSL_SIGNATURE_PARAM_FIPS_DIGEST_CHECK>) <integer>
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=item "sign-check" (B<OSSL_SIGNATURE_PARAM_FIPS_SIGN_CHECK>) <int>
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The settable parameters are described in L<provider-signature(7)>.
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=back
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The following signature parameters can be retrieved using
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EVP_PKEY_CTX_get_params().
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=over 4
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=item "algorithm-id" (B<OSSL_SIGNATURE_PARAM_ALGORITHM_ID>) <octet string>
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=item "digest" (B<OSSL_SIGNATURE_PARAM_DIGEST>) <UTF8 string>
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=item "nonce-type" (B<OSSL_SIGNATURE_PARAM_NONCE_TYPE>) <unsigned integer>
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=item "fips-indicator" (B<OSSL_SIGNATURE_PARAM_FIPS_APPROVED_INDICATOR>) <integer>
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The gettable parameters are described in L<provider-signature(7)>.
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=back
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=head1 SEE ALSO
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L<EVP_PKEY_CTX_set_params(3)>,
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L<EVP_PKEY_sign(3)>,
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L<EVP_PKEY_verify(3)>,
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L<provider-signature(7)>,
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=head1 HISTORY
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DSA Key generation and signature generation are no longer FIPS approved in
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OpenSSL 3.4. See L<fips_module(7)/FIPS indicators> for more information.
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=head1 COPYRIGHT
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Copyright 2020-2023 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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