openssl/doc/man7/EVP_KEYEXCH-X25519.pod

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=pod
=head1 NAME
EVP_KEYEXCH-X25519,
EVP_KEYEXCH-X448
- X25519 and X448 Key Exchange algorithm support
=head1 DESCRIPTION
Key exchange support for the B<X25519> and B<X448> key types.
=head2 Key exchange parameters
=over 4
=item "pad" (B<OSSL_EXCHANGE_PARAM_PAD>) <unsigned integer>
See L<provider-keyexch(7)/Common Key Exchange parameters>.
=back
=head1 EXAMPLES
Keys for the host and peer can be generated as shown in
L<EVP_PKEY-X25519(7)/Examples>.
The code to generate a shared secret is identical to
L<EVP_KEYEXCH-DH(7)/Examples>.
=head1 SEE ALSO
L<EVP_PKEY-FFC(7)>,
L<EVP_PKEY-DH(7)>
L<EVP_PKEY(3)>,
L<provider-keyexch(7)>,
L<provider-keymgmt(7)>,
L<OSSL_PROVIDER-default(7)>,
L<OSSL_PROVIDER-FIPS(7)>,
=head1 COPYRIGHT
Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut