From: Jan Glauber Date: Tue, 19 Apr 2011 19:29:19 +0000 (+0200) Subject: crypto: s390 - cleanup s390 Kconfig options X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d393d9b8ca7f3296b50cb6fd0dc550ed6f72cdbc;p=linux-beck.git crypto: s390 - cleanup s390 Kconfig options Cleanup the remaining s390 crypto options by mentioning the earliest machine type that supports an accelerated algorithm. Signed-off-by: Jan Glauber Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index d459cc7894d9..dc601ff4bcfd 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -91,6 +91,8 @@ config CRYPTO_SHA1_S390 This is the s390 hardware accelerated implementation of the SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). + It is available as of z990. + config CRYPTO_SHA256_S390 tristate "SHA256 digest algorithm" depends on S390 @@ -99,8 +101,7 @@ config CRYPTO_SHA256_S390 This is the s390 hardware accelerated implementation of the SHA256 secure hash standard (DFIPS 180-2). - This version of SHA implements a 256 bit hash with 128 bits of - security against collision attacks. + It is available as of z9. config CRYPTO_SHA512_S390 tristate "SHA384 and SHA512 digest algorithm" @@ -110,10 +111,7 @@ config CRYPTO_SHA512_S390 This is the s390 hardware accelerated implementation of the SHA512 secure hash standard. - This version of SHA implements a 512 bit hash with 256 bits of - security against collision attacks. The code also includes SHA-384, - a 384 bit hash with 192 bits of security against collision attacks. - + It is available as of z10. config CRYPTO_DES_S390 tristate "DES and Triple DES cipher algorithms" @@ -148,8 +146,10 @@ config S390_PRNG Select this option if you want to use the s390 pseudo random number generator. The PRNG is part of the cryptographic processor functions and uses triple-DES to generate secure random numbers like the - ANSI X9.17 standard. The PRNG is usable via the char device - /dev/prandom. + ANSI X9.17 standard. User-space programs access the + pseudo-random-number device through the char device /dev/prandom. + + It is available as of z9. config CRYPTO_GHASH_S390 tristate "GHASH digest algorithm"