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crypto: des - split off DES library from generic DES cipher driver

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Another one for the cipher museum: split off DES core processing into
a separate module so other drivers (mostly for crypto accelerators)
can reuse the code without pulling in the generic DES cipher itself.
This will also permit the cipher interface to be made private to the
crypto API itself once we move the only user in the kernel (CIFS) to
this library interface.

Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Ard Biesheuvel 2019-08-15 12:01:09 +03:00 • committed by Herbert Xu
commit 04007b0e6c
13 changed files with 1053 additions and 929 deletions
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8
crypto/Kconfig
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@ -1306,9 +1306,13 @@ config CRYPTO_CAST6_AVX_X86_64
This module provides the Cast6 cipher algorithm that processes
eight blocks parallel using the AVX instruction set.
config CRYPTO_LIB_DES
tristate
config CRYPTO_DES
tristate "DES and Triple DES EDE cipher algorithms"
select CRYPTO_ALGAPI
select CRYPTO_LIB_DES
help
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
@ -1316,7 +1320,7 @@ config CRYPTO_DES_SPARC64
tristate "DES and Triple DES EDE cipher algorithms (SPARC64)"
depends on SPARC64
select CRYPTO_ALGAPI
select CRYPTO_DES
select CRYPTO_LIB_DES
help
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3),
optimized using SPARC64 crypto opcodes.
@ -1325,7 +1329,7 @@ config CRYPTO_DES3_EDE_X86_64
tristate "Triple DES EDE cipher algorithm (x86-64)"
depends on X86 && 64BIT
select CRYPTO_BLKCIPHER
select CRYPTO_DES
select CRYPTO_LIB_DES
help
Triple DES EDE (FIPS 46-3) algorithm.