1EVP_CIPHER-NULL(7ossl)              OpenSSL             EVP_CIPHER-NULL(7ossl)
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NAME

6       EVP_CIPHER-NULL - The NULL EVP_CIPHER implementation
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DESCRIPTION

9       Support for a NULL symmetric encryption using the EVP_CIPHER API.  This
10       is used when the TLS cipher suite is TLS_NULL_WITH_NULL_NULL.  This
11       does no encryption (just copies the data) and has a mac size of zero.
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13   Algorithm Name
14       The following algorithm is available in the default provider:
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16       "NULL"
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18   Parameters
19       This implementation supports the following parameters:
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21       Gettable EVP_CIPHER parameters
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23       See "Gettable EVP_CIPHER parameters" in EVP_EncryptInit(3)
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25       Gettable EVP_CIPHER_CTX parameters
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27       "keylen" (OSSL_CIPHER_PARAM_KEYLEN) <unsigned integer>
28       "ivlen" (OSSL_CIPHER_PARAM_IVLEN and <OSSL_CIPHER_PARAM_AEAD_IVLEN)
29       <unsigned integer>
30       "tls-mac" (OSSL_CIPHER_PARAM_TLS_MAC) <octet ptr>
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32       See "PARAMETERS" in EVP_EncryptInit(3) for further information.
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34       Settable EVP_CIPHER_CTX parameters
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36       "tls-mac-size" (OSSL_CIPHER_PARAM_TLS_MAC_SIZE) <unsigned integer>
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38       See "PARAMETERS" in EVP_EncryptInit(3) for further information.
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CONFORMING TO

41       RFC 5246 section-6.2.3.1
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SEE ALSO

44       provider-cipher(7), OSSL_PROVIDER-default(7)
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47       Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
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49       Licensed under the Apache License 2.0 (the "License").  You may not use
50       this file except in compliance with the License.  You can obtain a copy
51       in the file LICENSE in the source distribution or at
52       <https://www.openssl.org/source/license.html>.
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563.0.9                             2023-07-27            EVP_CIPHER-NULL(7ossl)
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