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| author | Jan Glauber <jan.glauber@de.ibm.com> | 2007-02-05 21:18:22 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2007-02-05 21:18:22 +0100 |
| commit | 1b2782948997cf5a0d1747de13d43ba7dfa7c543 (patch) | |
| tree | 3c9c74179f2e8feaaaf48c1ff6dad78e979ed2e5 /arch/s390/crypto/crypt_s390.h | |
| parent | d54853ef8cb17296ac7bce9c77430fb7c80532d0 (diff) | |
| download | lwn-1b2782948997cf5a0d1747de13d43ba7dfa7c543.tar.gz lwn-1b2782948997cf5a0d1747de13d43ba7dfa7c543.zip | |
[S390] Support for s390 Pseudo Random Number Generator
Starting with the z9 the CPU Cryptographic Assist Facility comes with
an integrated Pseudo Random Number Generator. The generator creates
random numbers by an algorithm similar to the ANSI X9.17 standard.
The pseudo-random numbers can be accessed via a character device driver
node called /dev/prandom. Similar to /dev/urandom any amount of bytes
can be read from the device without blocking.
Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/crypto/crypt_s390.h')
| -rw-r--r-- | arch/s390/crypto/crypt_s390.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/crypto/crypt_s390.h b/arch/s390/crypto/crypt_s390.h index 2b92c2fd12d4..2775d2618332 100644 --- a/arch/s390/crypto/crypt_s390.h +++ b/arch/s390/crypto/crypt_s390.h @@ -71,6 +71,7 @@ enum crypt_s390_kmc_func { KMC_AES_192_DECRYPT = CRYPT_S390_KMC | 0x13 | 0x80, KMC_AES_256_ENCRYPT = CRYPT_S390_KMC | 0x14, KMC_AES_256_DECRYPT = CRYPT_S390_KMC | 0x14 | 0x80, + KMC_PRNG = CRYPT_S390_KMC | 0x43, }; /* |