Commit | Line | Data |
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1da177e4 LT |
1 | # |
2 | # Cryptographic API Configuration | |
3 | # | |
4 | ||
5 | menu "Cryptographic options" | |
6 | ||
7 | config CRYPTO | |
8 | bool "Cryptographic API" | |
9 | help | |
10 | This option provides the core Cryptographic API. | |
11 | ||
cce9e06d HX |
12 | if CRYPTO |
13 | ||
14 | config CRYPTO_ALGAPI | |
15 | tristate | |
16 | help | |
17 | This option provides the API for cryptographic algorithms. | |
18 | ||
5cde0af2 HX |
19 | config CRYPTO_BLKCIPHER |
20 | tristate | |
21 | select CRYPTO_ALGAPI | |
22 | ||
055bcee3 HX |
23 | config CRYPTO_HASH |
24 | tristate | |
25 | select CRYPTO_ALGAPI | |
26 | ||
2b8c19db HX |
27 | config CRYPTO_MANAGER |
28 | tristate "Cryptographic algorithm manager" | |
29 | select CRYPTO_ALGAPI | |
2b8c19db HX |
30 | help |
31 | Create default cryptographic template instantiations such as | |
32 | cbc(aes). | |
33 | ||
1da177e4 | 34 | config CRYPTO_HMAC |
8425165d | 35 | tristate "HMAC support" |
0796ae06 | 36 | select CRYPTO_HASH |
43518407 | 37 | select CRYPTO_MANAGER |
1da177e4 LT |
38 | help |
39 | HMAC: Keyed-Hashing for Message Authentication (RFC2104). | |
40 | This is required for IPSec. | |
41 | ||
333b0d7e KM |
42 | config CRYPTO_XCBC |
43 | tristate "XCBC support" | |
44 | depends on EXPERIMENTAL | |
45 | select CRYPTO_HASH | |
46 | select CRYPTO_MANAGER | |
47 | help | |
48 | XCBC: Keyed-Hashing with encryption algorithm | |
49 | http://www.ietf.org/rfc/rfc3566.txt | |
50 | http://csrc.nist.gov/encryption/modes/proposedmodes/ | |
51 | xcbc-mac/xcbc-mac-spec.pdf | |
52 | ||
1da177e4 LT |
53 | config CRYPTO_NULL |
54 | tristate "Null algorithms" | |
cce9e06d | 55 | select CRYPTO_ALGAPI |
1da177e4 LT |
56 | help |
57 | These are 'Null' algorithms, used by IPsec, which do nothing. | |
58 | ||
59 | config CRYPTO_MD4 | |
60 | tristate "MD4 digest algorithm" | |
cce9e06d | 61 | select CRYPTO_ALGAPI |
1da177e4 LT |
62 | help |
63 | MD4 message digest algorithm (RFC1320). | |
64 | ||
65 | config CRYPTO_MD5 | |
66 | tristate "MD5 digest algorithm" | |
cce9e06d | 67 | select CRYPTO_ALGAPI |
1da177e4 LT |
68 | help |
69 | MD5 message digest algorithm (RFC1321). | |
70 | ||
71 | config CRYPTO_SHA1 | |
72 | tristate "SHA1 digest algorithm" | |
cce9e06d | 73 | select CRYPTO_ALGAPI |
1da177e4 LT |
74 | help |
75 | SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). | |
76 | ||
1da177e4 LT |
77 | config CRYPTO_SHA256 |
78 | tristate "SHA256 digest algorithm" | |
cce9e06d | 79 | select CRYPTO_ALGAPI |
1da177e4 LT |
80 | help |
81 | SHA256 secure hash standard (DFIPS 180-2). | |
82 | ||
83 | This version of SHA implements a 256 bit hash with 128 bits of | |
84 | security against collision attacks. | |
85 | ||
86 | config CRYPTO_SHA512 | |
87 | tristate "SHA384 and SHA512 digest algorithms" | |
cce9e06d | 88 | select CRYPTO_ALGAPI |
1da177e4 LT |
89 | help |
90 | SHA512 secure hash standard (DFIPS 180-2). | |
91 | ||
92 | This version of SHA implements a 512 bit hash with 256 bits of | |
93 | security against collision attacks. | |
94 | ||
95 | This code also includes SHA-384, a 384 bit hash with 192 bits | |
96 | of security against collision attacks. | |
97 | ||
98 | config CRYPTO_WP512 | |
99 | tristate "Whirlpool digest algorithms" | |
cce9e06d | 100 | select CRYPTO_ALGAPI |
1da177e4 LT |
101 | help |
102 | Whirlpool hash algorithm 512, 384 and 256-bit hashes | |
103 | ||
104 | Whirlpool-512 is part of the NESSIE cryptographic primitives. | |
105 | Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard | |
106 | ||
107 | See also: | |
108 | <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html> | |
109 | ||
110 | config CRYPTO_TGR192 | |
111 | tristate "Tiger digest algorithms" | |
cce9e06d | 112 | select CRYPTO_ALGAPI |
1da177e4 LT |
113 | help |
114 | Tiger hash algorithm 192, 160 and 128-bit hashes | |
115 | ||
116 | Tiger is a hash function optimized for 64-bit processors while | |
117 | still having decent performance on 32-bit processors. | |
118 | Tiger was developed by Ross Anderson and Eli Biham. | |
119 | ||
120 | See also: | |
121 | <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>. | |
122 | ||
c494e070 RS |
123 | config CRYPTO_GF128MUL |
124 | tristate "GF(2^128) multiplication functions (EXPERIMENTAL)" | |
125 | depends on EXPERIMENTAL | |
126 | help | |
127 | Efficient table driven implementation of multiplications in the | |
128 | field GF(2^128). This is needed by some cypher modes. This | |
129 | option will be selected automatically if you select such a | |
130 | cipher mode. Only select this option by hand if you expect to load | |
131 | an external module that requires these functions. | |
132 | ||
db131ef9 HX |
133 | config CRYPTO_ECB |
134 | tristate "ECB support" | |
135 | select CRYPTO_BLKCIPHER | |
43518407 | 136 | select CRYPTO_MANAGER |
db131ef9 HX |
137 | default m |
138 | help | |
139 | ECB: Electronic CodeBook mode | |
140 | This is the simplest block cipher algorithm. It simply encrypts | |
141 | the input block by block. | |
142 | ||
143 | config CRYPTO_CBC | |
144 | tristate "CBC support" | |
145 | select CRYPTO_BLKCIPHER | |
43518407 | 146 | select CRYPTO_MANAGER |
db131ef9 HX |
147 | default m |
148 | help | |
149 | CBC: Cipher Block Chaining mode | |
150 | This block cipher algorithm is required for IPSec. | |
151 | ||
64470f1b RS |
152 | config CRYPTO_LRW |
153 | tristate "LRW support (EXPERIMENTAL)" | |
154 | depends on EXPERIMENTAL | |
155 | select CRYPTO_BLKCIPHER | |
156 | select CRYPTO_MANAGER | |
157 | select CRYPTO_GF128MUL | |
158 | help | |
159 | LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable | |
160 | narrow block cipher mode for dm-crypt. Use it with cipher | |
161 | specification string aes-lrw-benbi, the key must be 256, 320 or 384. | |
162 | The first 128, 192 or 256 bits in the key are used for AES and the | |
163 | rest is used to tie each cipher block to its logical position. | |
164 | ||
1da177e4 LT |
165 | config CRYPTO_DES |
166 | tristate "DES and Triple DES EDE cipher algorithms" | |
cce9e06d | 167 | select CRYPTO_ALGAPI |
1da177e4 LT |
168 | help |
169 | DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). | |
170 | ||
1da177e4 LT |
171 | config CRYPTO_BLOWFISH |
172 | tristate "Blowfish cipher algorithm" | |
cce9e06d | 173 | select CRYPTO_ALGAPI |
1da177e4 LT |
174 | help |
175 | Blowfish cipher algorithm, by Bruce Schneier. | |
176 | ||
177 | This is a variable key length cipher which can use keys from 32 | |
178 | bits to 448 bits in length. It's fast, simple and specifically | |
179 | designed for use on "large microprocessors". | |
180 | ||
181 | See also: | |
182 | <http://www.schneier.com/blowfish.html> | |
183 | ||
184 | config CRYPTO_TWOFISH | |
185 | tristate "Twofish cipher algorithm" | |
cce9e06d | 186 | select CRYPTO_ALGAPI |
2729bb42 | 187 | select CRYPTO_TWOFISH_COMMON |
1da177e4 LT |
188 | help |
189 | Twofish cipher algorithm. | |
190 | ||
191 | Twofish was submitted as an AES (Advanced Encryption Standard) | |
192 | candidate cipher by researchers at CounterPane Systems. It is a | |
193 | 16 round block cipher supporting key sizes of 128, 192, and 256 | |
194 | bits. | |
195 | ||
196 | See also: | |
197 | <http://www.schneier.com/twofish.html> | |
198 | ||
2729bb42 JF |
199 | config CRYPTO_TWOFISH_COMMON |
200 | tristate | |
2729bb42 JF |
201 | help |
202 | Common parts of the Twofish cipher algorithm shared by the | |
203 | generic c and the assembler implementations. | |
204 | ||
b9f535ff JF |
205 | config CRYPTO_TWOFISH_586 |
206 | tristate "Twofish cipher algorithms (i586)" | |
cce9e06d HX |
207 | depends on (X86 || UML_X86) && !64BIT |
208 | select CRYPTO_ALGAPI | |
b9f535ff JF |
209 | select CRYPTO_TWOFISH_COMMON |
210 | help | |
211 | Twofish cipher algorithm. | |
212 | ||
213 | Twofish was submitted as an AES (Advanced Encryption Standard) | |
214 | candidate cipher by researchers at CounterPane Systems. It is a | |
215 | 16 round block cipher supporting key sizes of 128, 192, and 256 | |
216 | bits. | |
217 | ||
218 | See also: | |
219 | <http://www.schneier.com/twofish.html> | |
220 | ||
eaf44088 JF |
221 | config CRYPTO_TWOFISH_X86_64 |
222 | tristate "Twofish cipher algorithm (x86_64)" | |
cce9e06d HX |
223 | depends on (X86 || UML_X86) && 64BIT |
224 | select CRYPTO_ALGAPI | |
eaf44088 JF |
225 | select CRYPTO_TWOFISH_COMMON |
226 | help | |
227 | Twofish cipher algorithm (x86_64). | |
228 | ||
229 | Twofish was submitted as an AES (Advanced Encryption Standard) | |
230 | candidate cipher by researchers at CounterPane Systems. It is a | |
231 | 16 round block cipher supporting key sizes of 128, 192, and 256 | |
232 | bits. | |
233 | ||
234 | See also: | |
235 | <http://www.schneier.com/twofish.html> | |
236 | ||
1da177e4 LT |
237 | config CRYPTO_SERPENT |
238 | tristate "Serpent cipher algorithm" | |
cce9e06d | 239 | select CRYPTO_ALGAPI |
1da177e4 LT |
240 | help |
241 | Serpent cipher algorithm, by Anderson, Biham & Knudsen. | |
242 | ||
243 | Keys are allowed to be from 0 to 256 bits in length, in steps | |
244 | of 8 bits. Also includes the 'Tnepres' algorithm, a reversed | |
245 | variant of Serpent for compatibility with old kerneli code. | |
246 | ||
247 | See also: | |
248 | <http://www.cl.cam.ac.uk/~rja14/serpent.html> | |
249 | ||
250 | config CRYPTO_AES | |
251 | tristate "AES cipher algorithms" | |
cce9e06d | 252 | select CRYPTO_ALGAPI |
1da177e4 LT |
253 | help |
254 | AES cipher algorithms (FIPS-197). AES uses the Rijndael | |
255 | algorithm. | |
256 | ||
257 | Rijndael appears to be consistently a very good performer in | |
258 | both hardware and software across a wide range of computing | |
259 | environments regardless of its use in feedback or non-feedback | |
260 | modes. Its key setup time is excellent, and its key agility is | |
261 | good. Rijndael's very low memory requirements make it very well | |
262 | suited for restricted-space environments, in which it also | |
263 | demonstrates excellent performance. Rijndael's operations are | |
264 | among the easiest to defend against power and timing attacks. | |
265 | ||
266 | The AES specifies three key sizes: 128, 192 and 256 bits | |
267 | ||
268 | See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information. | |
269 | ||
270 | config CRYPTO_AES_586 | |
271 | tristate "AES cipher algorithms (i586)" | |
cce9e06d HX |
272 | depends on (X86 || UML_X86) && !64BIT |
273 | select CRYPTO_ALGAPI | |
1da177e4 LT |
274 | help |
275 | AES cipher algorithms (FIPS-197). AES uses the Rijndael | |
276 | algorithm. | |
277 | ||
278 | Rijndael appears to be consistently a very good performer in | |
279 | both hardware and software across a wide range of computing | |
280 | environments regardless of its use in feedback or non-feedback | |
281 | modes. Its key setup time is excellent, and its key agility is | |
282 | good. Rijndael's very low memory requirements make it very well | |
283 | suited for restricted-space environments, in which it also | |
284 | demonstrates excellent performance. Rijndael's operations are | |
285 | among the easiest to defend against power and timing attacks. | |
286 | ||
287 | The AES specifies three key sizes: 128, 192 and 256 bits | |
a2a892a2 AS |
288 | |
289 | See <http://csrc.nist.gov/encryption/aes/> for more information. | |
290 | ||
291 | config CRYPTO_AES_X86_64 | |
292 | tristate "AES cipher algorithms (x86_64)" | |
cce9e06d HX |
293 | depends on (X86 || UML_X86) && 64BIT |
294 | select CRYPTO_ALGAPI | |
a2a892a2 AS |
295 | help |
296 | AES cipher algorithms (FIPS-197). AES uses the Rijndael | |
297 | algorithm. | |
298 | ||
299 | Rijndael appears to be consistently a very good performer in | |
300 | both hardware and software across a wide range of computing | |
301 | environments regardless of its use in feedback or non-feedback | |
302 | modes. Its key setup time is excellent, and its key agility is | |
303 | good. Rijndael's very low memory requirements make it very well | |
304 | suited for restricted-space environments, in which it also | |
305 | demonstrates excellent performance. Rijndael's operations are | |
306 | among the easiest to defend against power and timing attacks. | |
307 | ||
308 | The AES specifies three key sizes: 128, 192 and 256 bits | |
1da177e4 LT |
309 | |
310 | See <http://csrc.nist.gov/encryption/aes/> for more information. | |
311 | ||
312 | config CRYPTO_CAST5 | |
313 | tristate "CAST5 (CAST-128) cipher algorithm" | |
cce9e06d | 314 | select CRYPTO_ALGAPI |
1da177e4 LT |
315 | help |
316 | The CAST5 encryption algorithm (synonymous with CAST-128) is | |
317 | described in RFC2144. | |
318 | ||
319 | config CRYPTO_CAST6 | |
320 | tristate "CAST6 (CAST-256) cipher algorithm" | |
cce9e06d | 321 | select CRYPTO_ALGAPI |
1da177e4 LT |
322 | help |
323 | The CAST6 encryption algorithm (synonymous with CAST-256) is | |
324 | described in RFC2612. | |
325 | ||
326 | config CRYPTO_TEA | |
fb4f10ed | 327 | tristate "TEA, XTEA and XETA cipher algorithms" |
cce9e06d | 328 | select CRYPTO_ALGAPI |
1da177e4 LT |
329 | help |
330 | TEA cipher algorithm. | |
331 | ||
332 | Tiny Encryption Algorithm is a simple cipher that uses | |
333 | many rounds for security. It is very fast and uses | |
334 | little memory. | |
335 | ||
336 | Xtendend Tiny Encryption Algorithm is a modification to | |
337 | the TEA algorithm to address a potential key weakness | |
338 | in the TEA algorithm. | |
339 | ||
fb4f10ed AG |
340 | Xtendend Encryption Tiny Algorithm is a mis-implementation |
341 | of the XTEA algorithm for compatibility purposes. | |
342 | ||
1da177e4 LT |
343 | config CRYPTO_ARC4 |
344 | tristate "ARC4 cipher algorithm" | |
cce9e06d | 345 | select CRYPTO_ALGAPI |
1da177e4 LT |
346 | help |
347 | ARC4 cipher algorithm. | |
348 | ||
349 | ARC4 is a stream cipher using keys ranging from 8 bits to 2048 | |
350 | bits in length. This algorithm is required for driver-based | |
351 | WEP, but it should not be for other purposes because of the | |
352 | weakness of the algorithm. | |
353 | ||
354 | config CRYPTO_KHAZAD | |
355 | tristate "Khazad cipher algorithm" | |
cce9e06d | 356 | select CRYPTO_ALGAPI |
1da177e4 LT |
357 | help |
358 | Khazad cipher algorithm. | |
359 | ||
360 | Khazad was a finalist in the initial NESSIE competition. It is | |
361 | an algorithm optimized for 64-bit processors with good performance | |
362 | on 32-bit processors. Khazad uses an 128 bit key size. | |
363 | ||
364 | See also: | |
365 | <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html> | |
366 | ||
367 | config CRYPTO_ANUBIS | |
368 | tristate "Anubis cipher algorithm" | |
cce9e06d | 369 | select CRYPTO_ALGAPI |
1da177e4 LT |
370 | help |
371 | Anubis cipher algorithm. | |
372 | ||
373 | Anubis is a variable key length cipher which can use keys from | |
374 | 128 bits to 320 bits in length. It was evaluated as a entrant | |
375 | in the NESSIE competition. | |
376 | ||
377 | See also: | |
378 | <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/> | |
379 | <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html> | |
380 | ||
381 | ||
382 | config CRYPTO_DEFLATE | |
383 | tristate "Deflate compression algorithm" | |
cce9e06d | 384 | select CRYPTO_ALGAPI |
1da177e4 LT |
385 | select ZLIB_INFLATE |
386 | select ZLIB_DEFLATE | |
387 | help | |
388 | This is the Deflate algorithm (RFC1951), specified for use in | |
389 | IPSec with the IPCOMP protocol (RFC3173, RFC2394). | |
390 | ||
391 | You will most probably want this if using IPSec. | |
392 | ||
393 | config CRYPTO_MICHAEL_MIC | |
394 | tristate "Michael MIC keyed digest algorithm" | |
cce9e06d | 395 | select CRYPTO_ALGAPI |
1da177e4 LT |
396 | help |
397 | Michael MIC is used for message integrity protection in TKIP | |
398 | (IEEE 802.11i). This algorithm is required for TKIP, but it | |
399 | should not be used for other purposes because of the weakness | |
400 | of the algorithm. | |
401 | ||
402 | config CRYPTO_CRC32C | |
403 | tristate "CRC32c CRC algorithm" | |
cce9e06d | 404 | select CRYPTO_ALGAPI |
1da177e4 LT |
405 | select LIBCRC32C |
406 | help | |
407 | Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used | |
408 | by iSCSI for header and data digests and by others. | |
409 | See Castagnoli93. This implementation uses lib/libcrc32c. | |
410 | Module will be crc32c. | |
411 | ||
412 | config CRYPTO_TEST | |
413 | tristate "Testing module" | |
cce9e06d HX |
414 | depends on m |
415 | select CRYPTO_ALGAPI | |
1da177e4 LT |
416 | help |
417 | Quick & dirty crypto test module. | |
418 | ||
419 | source "drivers/crypto/Kconfig" | |
1da177e4 | 420 | |
cce9e06d HX |
421 | endif # if CRYPTO |
422 | ||
423 | endmenu |