| # |
| # Cryptographic API Configuration |
| # |
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| menu "Cryptographic options" |
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| config CRYPTO |
| bool "Cryptographic API" |
| help |
| This option provides the core Cryptographic API. |
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| config CRYPTO_HMAC |
| bool "HMAC support" |
| depends on CRYPTO |
| help |
| HMAC: Keyed-Hashing for Message Authentication (RFC2104). |
| This is required for IPSec. |
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| config CRYPTO_NULL |
| tristate "Null algorithms" |
| depends on CRYPTO |
| help |
| These are 'Null' algorithms, used by IPsec, which do nothing. |
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| config CRYPTO_MD4 |
| tristate "MD4 digest algorithm" |
| depends on CRYPTO |
| help |
| MD4 message digest algorithm (RFC1320). |
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| config CRYPTO_MD5 |
| tristate "MD5 digest algorithm" |
| depends on CRYPTO |
| help |
| MD5 message digest algorithm (RFC1321). |
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| config CRYPTO_SHA1 |
| tristate "SHA1 digest algorithm" |
| depends on CRYPTO |
| help |
| SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). |
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| config CRYPTO_SHA256 |
| tristate "SHA256 digest algorithm" |
| depends on CRYPTO |
| help |
| SHA256 secure hash standard (DFIPS 180-2). |
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| This version of SHA implements a 256 bit hash with 128 bits of |
| security against collision attacks. |
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| config CRYPTO_SHA512 |
| tristate "SHA384 and SHA512 digest algorithms" |
| depends on CRYPTO |
| help |
| SHA512 secure hash standard (DFIPS 180-2). |
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| This version of SHA implements a 512 bit hash with 256 bits of |
| security against collision attacks. |
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| This code also includes SHA-384, a 384 bit hash with 192 bits |
| of security against collision attacks. |
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| config CRYPTO_DES |
| tristate "DES and Triple DES EDE cipher algorithms" |
| depends on CRYPTO |
| help |
| DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). |
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| config CRYPTO_BLOWFISH |
| tristate "Blowfish cipher algorithm" |
| depends on CRYPTO |
| help |
| Blowfish cipher algorithm, by Bruce Schneier. |
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| This is a variable key length cipher which can use keys from 32 |
| bits to 448 bits in length. It's fast, simple and specifically |
| designed for use on "large microprocessors". |
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| See also: |
| http://www.schneier.com/blowfish.html |
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| config CRYPTO_TWOFISH |
| tristate "Twofish cipher algorithm" |
| depends on CRYPTO |
| help |
| Twofish cipher algorithm. |
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| Twofish was submitted as an AES (Advanced Encryption Standard) |
| candidate cipher by researchers at CounterPane Systems. It is a |
| 16 round block cipher supporting key sizes of 128, 192, and 256 |
| bits. |
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| See also: |
| http://www.schneier.com/twofish.html |
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| config CRYPTO_SERPENT |
| tristate "Serpent cipher algorithm" |
| depends on CRYPTO |
| help |
| Serpent cipher algorithm, by Anderson, Biham & Knudsen. |
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| Keys are allowed to be from 0 to 256 bits in length, in steps |
| of 8 bits. |
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| See also: |
| http://www.cl.cam.ac.uk/~rja14/serpent.html |
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| config CRYPTO_AES |
| tristate "AES cipher algorithms" |
| depends on CRYPTO |
| help |
| AES cipher algorithms (FIPS-197). AES uses the Rijndael |
| algorithm. |
| |
| Rijndael appears to be consistently a very good performer in |
| both hardware and software across a wide range of computing |
| environments regardless of its use in feedback or non-feedback |
| modes. Its key setup time is excellent, and its key agility is |
| good. Rijndael's very low memory requirements make it very well |
| suited for restricted-space environments, in which it also |
| demonstrates excellent performance. Rijndael's operations are |
| among the easiest to defend against power and timing attacks. |
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| The AES specifies three key sizes: 128, 192 and 256 bits |
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| See http://csrc.nist.gov/CryptoToolkit/aes/ for more information. |
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| config CRYPTO_CAST5 |
| tristate "CAST5 (CAST-128) cipher algorithm" |
| depends on CRYPTO |
| help |
| The CAST5 encryption algorithm (synonymous with CAST-128) is |
| described in RFC2144. |
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| config CRYPTO_CAST6 |
| tristate "CAST6 (CAST-256) cipher algorithm" |
| depends on CRYPTO |
| help |
| The CAST6 encryption algorithm (synonymous with CAST-256) is |
| described in RFC2612. |
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| config CRYPTO_DEFLATE |
| tristate "Deflate compression algorithm" |
| depends on CRYPTO |
| select ZLIB_INFLATE |
| select ZLIB_DEFLATE |
| help |
| This is the Deflate algorithm (RFC1951), specified for use in |
| IPSec with the IPCOMP protocol (RFC3173, RFC2394). |
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| You will most probably want this if using IPSec. |
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| config CRYPTO_TEST |
| tristate "Testing module" |
| depends on CRYPTO |
| help |
| Quick & dirty crypto test module. |
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| endmenu |
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