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Diffstat (limited to 'doc/man7/EVP_CIPHER-NULL.pod')
-rw-r--r-- | doc/man7/EVP_CIPHER-NULL.pod | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/doc/man7/EVP_CIPHER-NULL.pod b/doc/man7/EVP_CIPHER-NULL.pod new file mode 100644 index 000000000000..44e07dcf1b05 --- /dev/null +++ b/doc/man7/EVP_CIPHER-NULL.pod @@ -0,0 +1,72 @@ +=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 |