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s390/crypto: Support for SHA3 via CPACF (MSA6)

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This patch introduces sha3 support for s390.

- Rework the s390-specific SHA1 and SHA2 related code to
  provide the basis for SHA3.
- Provide two new kernel modules sha3_256_s390 and
  sha3_512_s390 together with new kernel options.

Signed-off-by: Joerg Schmidbauer <jschmidb@de.ibm.com>
Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Joerg Schmidbauer
2019-08-14 14:56:54 +02:00
committed by Heiko Carstens
parent 724dc336b7
commit 3c2eb6b76c
9 changed files with 395 additions and 28 deletions
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8
arch/s390/include/asm/cpacf.h
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@@ -93,6 +93,10 @@
#define CPACF_KIMD_SHA_1 0x01
#define CPACF_KIMD_SHA_256 0x02
#define CPACF_KIMD_SHA_512 0x03
#define CPACF_KIMD_SHA3_224 0x20
#define CPACF_KIMD_SHA3_256 0x21
#define CPACF_KIMD_SHA3_384 0x22
#define CPACF_KIMD_SHA3_512 0x23
#define CPACF_KIMD_GHASH 0x41
/*
@@ -103,6 +107,10 @@
#define CPACF_KLMD_SHA_1 0x01
#define CPACF_KLMD_SHA_256 0x02
#define CPACF_KLMD_SHA_512 0x03
#define CPACF_KLMD_SHA3_224 0x20
#define CPACF_KLMD_SHA3_256 0x21
#define CPACF_KLMD_SHA3_384 0x22
#define CPACF_KLMD_SHA3_512 0x23
/*
* function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)