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authorEric Biggers <ebiggers@google.com>2018-01-05 11:09:59 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2018-01-12 23:03:43 +1100
commitc9a3ff8f22a2df5ec6de18ba616a863392269a10 (patch)
tree09cce6d09bcdfd0b84aff74058b38bdf8346fc3f /crypto
parenteb772f37ae8163a89e28a435f6a18742ae06653b (diff)
downloadlinux-c9a3ff8f22a2df5ec6de18ba616a863392269a10.tar.bz2
crypto: x86/salsa20 - cleanup and convert to skcipher API
Convert salsa20-asm from the deprecated "blkcipher" API to the "skcipher" API, in the process fixing it up to use the generic helpers. This allows removing the salsa20_keysetup() and salsa20_ivsetup() assembly functions, which aren't performance critical; the C versions do just fine. This also fixes the same bug that salsa20-generic had, where the state array was being maintained directly in the transform context rather than on the stack or in the request context. Thus, if multiple threads used the same Salsa20 transform concurrently they produced the wrong results. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 9327fbfccf5a..b44c0ae04eb2 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1339,6 +1339,7 @@ config CRYPTO_SALSA20_586
tristate "Salsa20 stream cipher algorithm (i586)"
depends on (X86 || UML_X86) && !64BIT
select CRYPTO_BLKCIPHER
+ select CRYPTO_SALSA20
help
Salsa20 stream cipher algorithm.
@@ -1352,6 +1353,7 @@ config CRYPTO_SALSA20_X86_64
tristate "Salsa20 stream cipher algorithm (x86_64)"
depends on (X86 || UML_X86) && 64BIT
select CRYPTO_BLKCIPHER
+ select CRYPTO_SALSA20
help
Salsa20 stream cipher algorithm.