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Diffstat (limited to 'src/lib/libcrypto/man/EVP_rc4.3')
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| 1 | .\" $OpenBSD: EVP_rc4.3,v 1.1 2019/03/21 13:37:25 schwarze Exp $ | ||
| 2 | .\" full merge up to: OpenSSL 8fa4d95e Oct 21 11:59:09 2017 +0900 | ||
| 3 | .\" | ||
| 4 | .\" This file was written by Ronald Tse <ronald.tse@ribose.com> | ||
| 5 | .\" Copyright (c) 2017 The OpenSSL Project. All rights reserved. | ||
| 6 | .\" | ||
| 7 | .\" Redistribution and use in source and binary forms, with or without | ||
| 8 | .\" modification, are permitted provided that the following conditions | ||
| 9 | .\" are met: | ||
| 10 | .\" | ||
| 11 | .\" 1. Redistributions of source code must retain the above copyright | ||
| 12 | .\" notice, this list of conditions and the following disclaimer. | ||
| 13 | .\" | ||
| 14 | .\" 2. Redistributions in binary form must reproduce the above copyright | ||
| 15 | .\" notice, this list of conditions and the following disclaimer in | ||
| 16 | .\" the documentation and/or other materials provided with the | ||
| 17 | .\" distribution. | ||
| 18 | .\" | ||
| 19 | .\" 3. All advertising materials mentioning features or use of this | ||
| 20 | .\" software must display the following acknowledgment: | ||
| 21 | .\" "This product includes software developed by the OpenSSL Project | ||
| 22 | .\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 23 | .\" | ||
| 24 | .\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 25 | .\" endorse or promote products derived from this software without | ||
| 26 | .\" prior written permission. For written permission, please contact | ||
| 27 | .\" openssl-core@openssl.org. | ||
| 28 | .\" | ||
| 29 | .\" 5. Products derived from this software may not be called "OpenSSL" | ||
| 30 | .\" nor may "OpenSSL" appear in their names without prior written | ||
| 31 | .\" permission of the OpenSSL Project. | ||
| 32 | .\" | ||
| 33 | .\" 6. Redistributions of any form whatsoever must retain the following | ||
| 34 | .\" acknowledgment: | ||
| 35 | .\" "This product includes software developed by the OpenSSL Project | ||
| 36 | .\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
| 37 | .\" | ||
| 38 | .\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 39 | .\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 40 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 41 | .\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 42 | .\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 43 | .\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 44 | .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 45 | .\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 46 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 47 | .\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 48 | .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 49 | .\" OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 50 | .\" | ||
| 51 | .Dd $Mdocdate: March 21 2019 $ | ||
| 52 | .Dt EVP_RC4 3 | ||
| 53 | .Os | ||
| 54 | .Sh NAME | ||
| 55 | .Nm EVP_rc4 , | ||
| 56 | .Nm EVP_rc4_40 , | ||
| 57 | .Nm EVP_rc4_hmac_md5 | ||
| 58 | .Nd EVP RC4 stream cipher | ||
| 59 | .Sh SYNOPSIS | ||
| 60 | .In openssl/evp.h | ||
| 61 | .Ft const EVP_CIPHER * | ||
| 62 | .Fn EVP_rc4 void | ||
| 63 | .Ft const EVP_CIPHER * | ||
| 64 | .Fn EVP_rc4_40 void | ||
| 65 | .Ft const EVP_CIPHER * | ||
| 66 | .Fn EVP_rc4_hmac_md5 void | ||
| 67 | .Sh DESCRIPTION | ||
| 68 | These functions provide the RC4 stream cipher in the | ||
| 69 | .Xr evp 3 | ||
| 70 | framework. | ||
| 71 | It is a variable key length cipher. | ||
| 72 | .Pp | ||
| 73 | .Fn EVP_rc4 | ||
| 74 | uses a default key length of 128 bits. | ||
| 75 | .Pp | ||
| 76 | .Fn EVP_rc4_40 | ||
| 77 | uses a key length of 40 bits instead. | ||
| 78 | This function is deprecated. | ||
| 79 | Use | ||
| 80 | .Fn EVP_rc4 | ||
| 81 | and | ||
| 82 | .Xr EVP_CIPHER_CTX_set_key_length 3 | ||
| 83 | instead. | ||
| 84 | .Pp | ||
| 85 | .Fn EVP_rc4_hmac_md5 | ||
| 86 | provides authenticated encryption with the RC4 stream cipher | ||
| 87 | with MD5 as HMAC. | ||
| 88 | This function is not intended for usage outside of TLS | ||
| 89 | and requires calling of some undocumented control functions. | ||
| 90 | It does not conform to the EVP AEAD interface. | ||
| 91 | .Sh RETURN VALUES | ||
| 92 | These functions return an | ||
| 93 | .Vt EVP_CIPHER | ||
| 94 | structure that provides the implementation of the symmetric cipher. | ||
| 95 | .Sh SEE ALSO | ||
| 96 | .Xr evp 3 , | ||
| 97 | .Xr EVP_EncryptInit 3 | ||
| 98 | .Sh HISTORY | ||
| 99 | .Fn EVP_rc4 | ||
| 100 | first appeared in SSLeay 0.5.1 | ||
| 101 | and | ||
| 102 | .Fn EVP_rc4_40 | ||
| 103 | in OpenSSL 0.9.1. | ||
| 104 | These functions have been available since | ||
| 105 | .Ox 2.4 . | ||
| 106 | .Pp | ||
| 107 | .Fn EVP_rc4_hmac_md5 | ||
| 108 | first appeared in OpenSSL 1.0.1 and has been available since | ||
| 109 | .Ox 5.3 . | ||