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23 <td><small>Copyright © 2001 - 2007 SILC Project<br />
24 <a href="http://silcnet.org">SILC Project Website</a></small></td>
25 <td align="right"><small>
26 <a href="index.html">SILC Toolkit Reference Manual</a><br />
27 <a href="toolkit_index.html">Index</a></small></td>
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44 <!-- Template file for the big index that appears in the Toolkit reference
45 manual on the left side. With this file it is possible to add other than
46 automatically generated links to that list. -->
48 <a href="index.html"><img src="box.gif" border="0" alt="">SILC Toolkit Reference Manual</a><br />
51 <a href=silccryptlib.html><img src=box.gif border=0 alt=>SILC Crypto Library</a><br />
52 <a href=silcrng_intro.html><img src=box2.gif border=0 alt=>Introduction to SILC RNG</a><br />
53 <a href=silcrng.html><img src=box2.gif border=0 alt=>SILC RNG Interface</a><br />
54 <a href=silccipher.html><img src=box2.gif border=0 alt=>SILC Cipher API</a><br />
55 <a href=silcpkcs.html><img src=box2.gif border=0 alt=>SILC PKCS API</a><br />
56 <a href=silcpk.html><img src=box2.gif border=0 alt=>SILC Public Key API</a><br />
57 <a href=silcpkcs1.html><img src=box2.gif border=0 alt=>SILC PKCS #1 API</a><br />
58 <a href=silchash.html><img src=box2.gif border=0 alt=>SILC Hash Interface</a><br />
59 <a href=silchmac.html><img src=box2.gif border=0 alt=>SILC HMAC Interface</a><br />
60 <a href=silccorelib.html><img src=box.gif border=0 alt=>SILC Core Library</a><br />
61 <a href=silcauth.html><img src=box2.gif border=0 alt=>SILC Authentication Interface</a><br />
62 <a href=silcmessage.html><img src=box2.gif border=0 alt=>SILC Message Interface</a><br />
63 <a href=silcchannel.html><img src=box2.gif border=0 alt=>SILC Channel Interface</a><br />
64 <a href=silccommand.html><img src=box2.gif border=0 alt=>SILC Command Interface</a><br />
65 <a href=silcnotify.html><img src=box2.gif border=0 alt=>SILC Notify Interface</a><br />
66 <a href=silcstatus.html><img src=box2.gif border=0 alt=>SILC Status Types</a><br />
67 <a href=silcmode.html><img src=box2.gif border=0 alt=>SILC Modes</a><br />
68 <a href=silcid.html><img src=box2.gif border=0 alt=>SILC ID Interface</a><br />
69 <a href=silcargument.html><img src=box2.gif border=0 alt=>SILC Argument Interface</a><br />
70 <a href=silcattrs.html><img src=box2.gif border=0 alt=>SILC Attributes Interface</a><br />
71 <a href=silcpacket.html><img src=box2.gif border=0 alt=>Packet Engine Interface</a><br />
72 <a href=silcpubkey.html><img src=box2.gif border=0 alt=>SILC Public Key Payload Interface</a><br />
73 <a href=silcskelib.html><img src=box.gif border=0 alt=>SILC Key Exchange Library</a><br />
74 <a href=silcske.html><img src=box2.gif border=0 alt=>SILC SKE Interface</a><br />
75 <a href=silcconnauth.html><img src=box2.gif border=0 alt=>SILC Connection Authentication Interface</a><br />
76 <a href=silcvcardlib.html><img src=box.gif border=0 alt=>SILC VCard Library</a><br />
77 <a href=silcvcard.html><img src=box2.gif border=0 alt=>SILC VCard Interface</a><br />
78 <a href=silcmathlib.html><img src=box.gif border=0 alt=>SILC Math Library</a><br />
79 <a href=silcmp.html><img src=box2.gif border=0 alt=>SILC MP Interface</a><br />
80 <a href=silcmath.html><img src=box2.gif border=0 alt=>SILC Math Interface</a><br />
81 <a href=silcclientlib.html><img src=box.gif border=0 alt=>SILC Client Library</a><br />
82 <a href=silcclient_using.html><img src=box2.gif border=0 alt=>Using SILC Client Library Tutorial</a><br />
83 <a href=command_reply_args.html><img src=box2.gif border=0 alt=>Arguments for <b>command_reply</b> Client Operation</a><br />
84 <a href=silcstatus_args.html><img src=box2.gif border=0 alt=>SilcStatus Error Arguments in <b>command_reply</b> Client Operation</a><br />
85 <a href=notifyargs.html><img src=box2.gif border=0 alt=>Arguments for <b>notify</b> Client Operation</a><br />
86 <a href=silcclient_unicode.html><img src=box2.gif border=0 alt=>Unicode and UTF-8 Strings in Client Library</a><br />
87 <a href=silcclient.html><img src=box2.gif border=0 alt=>Client Library Interface Reference</a><br />
88 <a href=silcclient_entry.html><img src=box2.gif border=0 alt=>Client Entry Interface Reference</a><br />
89 <a href=silcasn1lib.html><img src=box.gif border=0 alt=>SILC ASN.1 Library</a><br />
90 <a href=silcasn1.html><img src=box2.gif border=0 alt=>SILC ASN.1 Interface</a><br />
91 <a href=silcber.html><img src=box2.gif border=0 alt=>SILC BER interface</a><br />
92 <a href=silchttplib.html><img src=box.gif border=0 alt=>SILC HTTP Library</a><br />
93 <a href=silchttpserver.html><img src=box2.gif border=0 alt=>SILC HTTP Server Interface</a><br />
94 <a href=silchttpphp.html><img src=box2.gif border=0 alt=>SILC HTTP PHP Translator</a><br />
95 <a href=silcutillib.html><img src=box.gif border=0 alt=>SILC Utility Library</a><br />
96 <a href=silctypes.html><img src=box2.gif border=0 alt=>Basic Types and Definitions</a><br />
97 <a href=silcbuffer.html><img src=box2.gif border=0 alt=>Data Buffer Interface</a><br />
98 <a href=silcbuffmt.html><img src=box2.gif border=0 alt=>Data Buffer Format Interface</a><br />
99 <a href=silchashtable.html><img src=box2.gif border=0 alt=>Hash Table Interface</a><br />
100 <a href=silcmemory.html><img src=box2.gif border=0 alt=>Memory Allocation Interface</a><br />
101 <a href=silcstack.html><img src=box2.gif border=0 alt=>Data Stack (memory pool) Interface</a><br />
102 <a href=silcfsm.html><img src=box2.gif border=0 alt=>Finite State Machine Interface</a><br />
103 <a href=silcthread.html><img src=box2.gif border=0 alt=>Thread Interface</a><br />
104 <a href=silcmutex.html><img src=box2.gif border=0 alt=>Mutual Exclusion Lock Interface</a><br />
105 <a href=silccond.html><img src=box2.gif border=0 alt=>Condition Variable Interface</a><br />
106 <a href=silcatomic.html><img src=box2.gif border=0 alt=>Atomic Operations Interface</a><br />
107 <a href=silcnet.html><img src=box2.gif border=0 alt=>Network (TCP and UDP) Interface</a><br />
108 <a href=silcschedule.html><img src=box2.gif border=0 alt=>Scheduler Interface</a><br />
109 <a href=silcasync.html><img src=box2.gif border=0 alt=>Asynchronous Operation Interface</a><br />
110 <a href=silcstream.html><img src=box2.gif border=0 alt=>Abstract Stream Interface</a><br />
111 <a href=silcsocketstream.html><img src=box2.gif border=0 alt=>Socket Stream Interface</a><br />
112 <a href=silcfdstream.html><img src=box2.gif border=0 alt=>File Descriptor Stream Interface</a><br />
113 <a href=silcfileutil.html><img src=box2.gif border=0 alt=>File Utility Functions</a><br />
114 <a href=silcstrutil.html><img src=box2.gif border=0 alt=>String Utility Interface</a><br />
115 <a href=silcsnprintf.html><img src=box2.gif border=0 alt=>Snprintf Interface</a><br />
116 <a href=silcutf8.html><img src=box2.gif border=0 alt=>UTF-8 String Interface</a><br />
117 <a href=silcstringprep.html><img src=box2.gif border=0 alt=>Stringprep Interface</a><br />
118 <a href=silcutil.html><img src=box2.gif border=0 alt=>Utility Functions</a><br />
119 <a href=silclist.html><img src=box2.gif border=0 alt=>List Interface</a><br />
120 <a href=silcdlist.html><img src=box2.gif border=0 alt=>Dynamic List Interface</a><br />
121 <a href=silcmime.html><img src=box2.gif border=0 alt=>MIME Interface</a><br />
122 <a href=silctime.html><img src=box2.gif border=0 alt=>Time Utility Functions</a><br />
123 <a href=silclog.html><img src=box2.gif border=0 alt=>Logging Interface</a><br />
124 <a href=silcconfig.html><img src=box2.gif border=0 alt=>Config File Interface</a><br />
125 <a href=silcskrlib.html><img src=box.gif border=0 alt=>SILC Key Repository Library</a><br />
126 <a href=silcskr.html><img src=box2.gif border=0 alt=>SILC SKR Interface</a><br />
127 <a href=silcaputillib.html><img src=box.gif border=0 alt=>SILC Application Utility Library</a><br />
128 <a href=silcapputil.html><img src=box2.gif border=0 alt=>SILC Application Utilities</a><br />
129 <a href=silcidcache.html><img src=box2.gif border=0 alt=>SILC ID Cache Interface</a><br />
130 <a href=silcsftplib.html><img src=box.gif border=0 alt=>SILC SFTP Library</a><br />
131 <a href=silcsftp.html><img src=box2.gif border=0 alt=>SILC SFTP Interface</a><br />
132 <a href=silcsftp_fs.html><img src=box2.gif border=0 alt=>SFTP Filesystems Interface</a><br />
135 <b>Resource Links</b>
137 <a href="http://silcnet.org"><img src="box.gif" border="0" alt="">SILC Project Website</a><br />
138 <a href="http://silcnet.org/support/documentation/"><img src="box.gif" border="0" alt="">SILC Protocol Documentation</a><br />
139 <a href="http://silcnet.org/support/documentation/wp/"><img src="box.gif" border="0" alt="">SILC White Paper</a><br />
140 <a href="http://silcnet.org/support/faq/"><img src="box.gif" border="0" alt="">SILC FAQs</a><br />
143 <br /><br /><br /><br />
148 <td bgcolor="#cccccc" background="dot.gif">
149 <img src="space.gif" width="1" height="1" border="0" alt=""></td>
151 <td width="720" bgcolor="#ffffff">
152 <img src="space.gif" width="1" height="1" border="0" alt="">
153 <table cellpadding="2" cellspacing="6" width="100%">
154 <tr><td valign="top">
157 <FONT SIZE="+2" COLOR="#000055"><B>Function <A NAME="silc_cipher_alloc">silc_cipher_alloc</A></FONT></B><BR><BR>
160 <FONT COLOR="#000055">SYNOPSIS
162 <PRE><FONT FACE="courier" size="3">
163 <A HREF="silctypes-SilcBool.html">SilcBool</A> <B>silc_cipher_alloc</B>(const unsigned char *name,
164 <A HREF="silccipher-SilcCipher.html">SilcCipher</A> *new_cipher);
166 </FONT></PRE><FONT SIZE="+1"><B>
167 <FONT COLOR="#000055">DESCRIPTION
169 <PRE><FONT FACE="Helvetiva,Arial,Sans-serif">
170 Allocates a new SILC cipher object. Function returns 1 on succes and 0
171 on error. The allocated cipher is returned in new_cipher argument. The
172 caller must set the key to the cipher after this function has returned
173 by calling the ciphers set_key function.
175 The following ciphers are supported:
177 aes-256-ctr AES-256, Counter mode
178 aes-192-ctr AES-192, Counter mode
179 aes-128-ctr AES,128, Counter mode
180 aes-256-cbc AES-256, Cipher block chaining mode
181 aes-192-cbc AES-192, Cipher block chaining mode
182 aes-128-cbc AES,128, Cipher block chaining mode
183 twofish-256-cbc Twofish-256, Cipher block chaining mode
184 twofish-192-cbc Twofish-192, Cipher block chaining mode
185 twofish-128-cbc Twofish-128, Cipher block chaining mode
189 The CTR is normal counter mode. The CTR mode does not require the
190 plaintext length to be multiple by the cipher block size. If the last
191 plaintext block is shorter the remaining bits of the key stream are
192 used next time <A HREF="silccipher-silc_cipher_encrypt.html">silc_cipher_encrypt</A> is called. If <A HREF="silccipher-silc_cipher_set_iv.html">silc_cipher_set_iv</A>
193 is called it will reset the counter for a new block (discarding any
194 remaining bits from previous key stream).
196 The CBC is mode is a standard CBC mode. The plaintext length must be
197 multiple by the cipher block size. If it isn't the plaintext must be
201 <br /><br /><br /><br />
206 <td bgcolor="#cccccc" background="dot.gif">
207 <img src="space.gif" width="1" height="1" border="0" alt=""></td>
209 <td width="180" bgcolor="#f0f0f0">
210 <img src="space.gif" width="1" height="1" border="0" alt="">
211 <table width="100%" cellpadding="4" cellspacing="0">
212 <tr valign="top"><td>
214 <font face="Helvetica,Arial,Sans-serif" size="1">
215 <A HREF="silccipher.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SILC Cipher Interface</A><BR>
216 <A HREF="silccipher-SilcCipher.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcCipher</A><BR>
217 <A HREF="silccipher-SilcCipherMode.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcCipherMode</A><BR>
218 <A HREF="silccipher-silc_cipher_register.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_register</A><BR>
219 <A HREF="silccipher-silc_cipher_unregister.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_unregister</A><BR>
220 <A HREF="silccipher-silc_cipher_register_default.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_register_default</A><BR>
221 <A HREF="silccipher-silc_cipher_unregister_all.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_unregister_all</A><BR>
222 <A HREF="silccipher-silc_cipher_alloc.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_alloc</A><BR>
223 <A HREF="silccipher-silc_cipher_free.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_free</A><BR>
224 <A HREF="silccipher-silc_cipher_is_supported.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_is_supported</A><BR>
225 <A HREF="silccipher-silc_cipher_get_supported.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_get_supported</A><BR>
226 <A HREF="silccipher-silc_cipher_encrypt.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_encrypt</A><BR>
227 <A HREF="silccipher-silc_cipher_decrypt.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_decrypt</A><BR>
228 <A HREF="silccipher-silc_cipher_set_key.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_set_key</A><BR>
229 <A HREF="silccipher-silc_cipher_set_iv.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_set_iv</A><BR>
230 <A HREF="silccipher-silc_cipher_get_iv.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_get_iv</A><BR>
231 <A HREF="silccipher-silc_cipher_get_key_len.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_get_key_len</A><BR>
232 <A HREF="silccipher-silc_cipher_get_block_len.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_get_block_len</A><BR>
233 <A HREF="silccipher-silc_cipher_get_iv_len.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_get_iv_len</A><BR>
234 <A HREF="silccipher-silc_cipher_get_name.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_get_name</A><BR>
235 <A HREF="silccipher-silc_cipher_get_mode.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_cipher_get_mode</A><BR>
238 <br /><br /><br /><br />
245 <table border="0" cellspacing="0" cellpadding="0" width="100%">
246 <tr bgcolor="#444444"><td><img src="space.gif" width="1" height="1"border="0" alt="" ></td></tr>
248 <table border="0" cellspacing="0" cellpadding="6" width="100%">
249 <tr valign="top" bgcolor="#dddddd">
250 <td><small>Copyright © 2001 - 2007 SILC Project<br />
251 <a href="http://silcnet.org">SILC Project Website</a></small></td>
252 <td align="right"><small>
253 <a href="index.html">SILC Toolkit Reference Manual</a><br />
254 <a href="toolkit_index.html">Index</a></small></td>