1=pod 2 3=head1 NAME 4 5EVP_KEM-RSA 6- EVP_KEM RSA keytype and algorithm support 7 8=head1 DESCRIPTION 9 10The B<RSA> keytype and its parameters are described in L<EVP_PKEY-RSA(7)>. 11See L<EVP_PKEY_encapsulate(3)> and L<EVP_PKEY_decapsulate(3)> for more info. 12 13=head2 RSA KEM parameters 14 15=over 4 16 17=item "operation" (B<OSSL_KEM_PARAM_OPERATION>) <UTF8 string> 18 19The OpenSSL RSA Key Encapsulation Mechanism only currently supports the 20following operation 21 22=over 4 23 24=item "RSASVE" 25 26The encapsulate function simply generates a secret using random bytes and then 27encrypts the secret using the RSA public key (with no padding). 28The decapsulate function recovers the secret using the RSA private key. 29 30=back 31 32This can be set using EVP_PKEY_CTX_set_kem_op(). 33 34=back 35 36 37=head1 CONFORMING TO 38 39=over 4 40 41=item SP800-56Br2 42 43Section 7.2.1.2 RSASVE Generate Operation (RSASVE.GENERATE). 44Section 7.2.1.3 RSASVE Recovery Operation (RSASVE.RECOVER). 45 46=back 47 48=head1 SEE ALSO 49 50L<EVP_PKEY_CTX_set_kem_op(3)>, 51L<EVP_PKEY_encapsulate(3)>, 52L<EVP_PKEY_decapsulate(3)> 53L<EVP_KEYMGMT(3)>, 54L<EVP_PKEY(3)>, 55L<provider-keymgmt(7)> 56 57=head1 HISTORY 58 59This functionality was added in OpenSSL 3.0. 60 61=head1 COPYRIGHT 62 63Copyright 2020 The OpenSSL Project Authors. All Rights Reserved. 64 65Licensed under the Apache License 2.0 (the "License"). You may not use 66this file except in compliance with the License. You can obtain a copy 67in the file LICENSE in the source distribution or at 68L<https://www.openssl.org/source/license.html>. 69 70=cut 71