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69687aa829
Fix some comments too [skip ci] Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/3069)
59 lines
1.5 KiB
Plaintext
59 lines
1.5 KiB
Plaintext
=pod
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=head1 NAME
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X25519 - EVP_PKEY X25519 support
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=head1 DESCRIPTION
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The B<X25519> EVP_PKEY implementation supports key generation and key
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derivation using B<X25519>. It has associated private and public key formats
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compatible with draft-ietf-curdle-pkix-03.
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No additional parameters can be set during key generation.
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The peer public key must be set using EVP_PKEY_derive_set_peer() when
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performing key derivation.
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=head1 NOTES
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A context for the B<X25519> algorithm can be obtained by calling:
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EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(NID_X25519, NULL);
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=head1 EXAMPLE
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This example generates an B<X25519> private key and writes it to standard
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output in PEM format:
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#include <openssl/evp.h>
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#include <openssl/pem.h>
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...
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EVP_PKEY *pkey = NULL;
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EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(NID_X25519, NULL);
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EVP_PKEY_keygen_init(pctx);
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EVP_PKEY_keygen(pctx, &pkey);
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EVP_PKEY_CTX_free(pctx);
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PEM_write_PrivateKey(stdout, pkey, NULL, NULL, 0, NULL, NULL);
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The key derivation example in L<EVP_PKEY_derive(3)> can be used with
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B<X25519>.
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=head1 SEE ALSO
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L<EVP_PKEY_CTX_new(3)>,
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L<EVP_PKEY_keygen(3)>,
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L<EVP_PKEY_derive(3)>,
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L<EVP_PKEY_derive_set_peer(3)>
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=head1 COPYRIGHT
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Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (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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