Provided by: openssl_3.4.1-1ubuntu3_amd64 bug

NAME
       EVP_KEYEXCH-X25519, EVP_KEYEXCH-X448 - X25519 and X448 Key Exchange algorithm support


DESCRIPTION
       Key exchange support for the X25519 and X448 key types.

   Key exchange parameters
       "pad" (OSSL_EXCHANGE_PARAM_PAD) <unsigned integer>
       "fips-indicator" (OSSL_EXCHANGE_PARAM_FIPS_APPROVED_INDICATOR) <integer>
           X25519 and X448 are not FIPS approved in FIPS 140-3.  So this getter will return 0.

           See "Common Key Exchange parameters" in provider-keyexch(7).


EXAMPLES
       Keys for the host and peer can be generated as shown in "Examples" in EVP_PKEY-X25519(7).

       The code to generate a shared secret is identical to "Examples" in EVP_KEYEXCH-DH(7).


SEE ALSO
       EVP_PKEY-FFC(7),      EVP_PKEY-DH(7)      EVP_PKEY(3),      provider-keyexch(7),     provider-keymgmt(7),
       OSSL_PROVIDER-default(7), OSSL_PROVIDER-FIPS(7),


COPYRIGHT
       Copyright 2020-2024 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
       <https://www.openssl.org/source/license.html>.

3.4.1                                              2025-04-03                           EVP_KEYEXCH-X25519(7SSL)