mirror of https://github.com/openssl/openssl.git
56 lines
1.2 KiB
Plaintext
56 lines
1.2 KiB
Plaintext
=pod
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=head1 NAME
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EVP_KEYEXCH-X25519,
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EVP_KEYEXCH-X448
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- X25519 and X448 Key Exchange algorithm support
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=head1 DESCRIPTION
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Key exchange support for the B<X25519> and B<X448> key types.
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=head2 Key exchange parameters
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=over 4
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=item "pad" (B<OSSL_EXCHANGE_PARAM_PAD>) <unsigned integer>
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=item "fips-indicator" (B<OSSL_EXCHANGE_PARAM_FIPS_APPROVED_INDICATOR>) <integer>
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B<X25519> and B<X448> are not FIPS approved in FIPS 140-3.
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So this getter will return 0.
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See L<provider-keyexch(7)/Common Key Exchange parameters>.
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=back
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=head1 EXAMPLES
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Keys for the host and peer can be generated as shown in
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L<EVP_PKEY-X25519(7)/Examples>.
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The code to generate a shared secret is identical to
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L<EVP_KEYEXCH-DH(7)/Examples>.
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=head1 SEE ALSO
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L<EVP_PKEY-FFC(7)>,
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L<EVP_PKEY-DH(7)>
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L<EVP_PKEY(3)>,
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L<provider-keyexch(7)>,
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L<provider-keymgmt(7)>,
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L<OSSL_PROVIDER-default(7)>,
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L<OSSL_PROVIDER-FIPS(7)>,
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=head1 COPYRIGHT
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Copyright 2020-2024 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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