+++ /dev/null
-=pod
-
-=head1 NAME
-
-RC4_set_key, RC4 - RC4 encryption
-
-=head1 SYNOPSIS
-
- #include <openssl/rc4.h>
-
- void RC4_set_key(RC4_KEY *key, int len, const unsigned char *data);
-
- void RC4(RC4_KEY *key, unsigned long len, const unsigned char *indata,
- unsigned char *outdata);
-
-=head1 DESCRIPTION
-
-This library implements the Alleged RC4 cipher, which is described for
-example in I<Applied Cryptography>. It is believed to be compatible
-with RC4[TM], a proprietary cipher of RSA Security Inc.
-
-RC4 is a stream cipher with variable key length. Typically, 128 bit
-(16 byte) keys are used for strong encryption, but shorter insecure
-key sizes have been widely used due to export restrictions.
-
-RC4 consists of a key setup phase and the actual encryption or
-decryption phase.
-
-RC4_set_key() sets up the B<RC4_KEY> B<key> using the B<len> bytes long
-key at B<data>.
-
-RC4() encrypts or decrypts the B<len> bytes of data at B<indata> using
-B<key> and places the result at B<outdata>. Repeated RC4() calls with
-the same B<key> yield a continuous key stream.
-
-Since RC4 is a stream cipher (the input is XORed with a pseudo-random
-key stream to produce the output), decryption uses the same function
-calls as encryption.
-
-=head1 RETURN VALUES
-
-RC4_set_key() and RC4() do not return values.
-
-=head1 NOTE
-
-Applications should use the higher level functions
-L<EVP_EncryptInit(3)> etc. instead of calling these
-functions directly.
-
-It is difficult to securely use stream ciphers. For example, do not perform
-multiple encryptions using the same key stream.
-
-=head1 SEE ALSO
-
-L<EVP_EncryptInit(3)>
-
-=head1 COPYRIGHT
-
-Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
-
-Licensed under the OpenSSL license (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
projects / openssl.git / blobdiff