mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
73 lines
1.6 KiB
Plaintext
73 lines
1.6 KiB
Plaintext
|
=pod
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
EVP_CIPHER-NULL - The NULL EVP_CIPHER implementation
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
Support for a NULL symmetric encryption using the B<EVP_CIPHER> API.
|
||
|
|
This is used when the TLS cipher suite is TLS_NULL_WITH_NULL_NULL.
|
||
|
|
This does no encryption (just copies the data) and has a mac size of zero.
|
||
|
|
|
||
|
|
=head2 Algorithm Name
|
||
|
|
|
||
|
|
The following algorithm is available in the default provider:
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item "NULL"
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head2 Parameters
|
||
|
|
|
||
|
|
This implementation supports the following parameters:
|
||
|
|
|
||
|
|
=head3 Gettable EVP_CIPHER parameters
|
||
|
|
|
||
|
|
See L<EVP_EncryptInit(3)/Gettable EVP_CIPHER parameters>
|
||
|
|
|
||
|
|
=head3 Gettable EVP_CIPHER_CTX parameters
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item "keylen" (B<OSSL_CIPHER_PARAM_KEYLEN>) <unsigned integer>
|
||
|
|
|
||
|
|
=item "ivlen" (B<OSSL_CIPHER_PARAM_IVLEN> and <B<OSSL_CIPHER_PARAM_AEAD_IVLEN>) <unsigned integer>
|
||
|
|
|
||
|
|
=item "tls-mac" (B<OSSL_CIPHER_PARAM_TLS_MAC>) <octet ptr>
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
See L<EVP_EncryptInit(3)/PARAMETERS> for further information.
|
||
|
|
|
||
|
|
=head3 Settable EVP_CIPHER_CTX parameters
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item "tls-mac-size" (B<OSSL_CIPHER_PARAM_TLS_MAC_SIZE>) <unsigned integer>
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
See L<EVP_EncryptInit(3)/PARAMETERS> for further information.
|
||
|
|
|
||
|
|
=head1 CONFORMING TO
|
||
|
|
|
||
|
|
RFC 5246 section-6.2.3.1
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<provider-cipher(7)>, L<OSSL_PROVIDER-default(7)>
|
||
|
|
|
||
|
|
=head1 COPYRIGHT
|
||
|
|
|
||
|
|
Copyright 2023 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
|