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.IX Title "EVP_CIPHER_CTX_GET_CIPHER_DATA 3"
.TH EVP_CIPHER_CTX_GET_CIPHER_DATA 3 "2021-12-14" "1.1.1m" "OpenSSL"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.SH "NAME"
EVP_CIPHER_CTX_get_cipher_data, EVP_CIPHER_CTX_set_cipher_data \- Routines to inspect and modify EVP_CIPHER_CTX objects
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/evp.h>
\&
\& void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx);
\& void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fIEVP_CIPHER_CTX_get_cipher_data()\fR function returns a pointer to the cipher
data relevant to \s-1EVP_CIPHER_CTX\s0. The contents of this data is specific to the
particular implementation of the cipher. For example this data can be used by
engines to store engine specific information. The data is automatically
allocated and freed by OpenSSL, so applications and engines should not normally
free this directly (but see below).
.PP
The \fIEVP_CIPHER_CTX_set_cipher_data()\fR function allows an application or engine to
replace the cipher data with new data. A pointer to any existing cipher data is
returned from this function. If the old data is no longer required then it
should be freed through a call to \fIOPENSSL_free()\fR.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
The \fIEVP_CIPHER_CTX_get_cipher_data()\fR function returns a pointer to the current
cipher data for the \s-1EVP_CIPHER_CTX\s0.
.PP
The \fIEVP_CIPHER_CTX_set_cipher_data()\fR function returns a pointer to the old
cipher data for the \s-1EVP_CIPHER_CTX\s0.
.SH "HISTORY"
.IX Header "HISTORY"
The \fIEVP_CIPHER_CTX_get_cipher_data()\fR and \fIEVP_CIPHER_CTX_set_cipher_data()\fR
functions were added in OpenSSL 1.1.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.
Copyright 2K16 - 2K18 Indonesian Hacker Rulez
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