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| author | Elena Petrova <lenaptr@google.com> | 2020-09-18 16:42:16 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-09-25 17:48:52 +1000 |
| commit | 77ebdabe8de7c02f43c6de3357f79ff96f9f0579 (patch) | |
| tree | e6f8fbb41137d2e27703a31083d6cf99762251af /crypto/Kconfig | |
| parent | fcf5d2dcadde06f2c82eef460198e2f2f4b642f8 (diff) | |
| download | lwn-77ebdabe8de7c02f43c6de3357f79ff96f9f0579.tar.gz lwn-77ebdabe8de7c02f43c6de3357f79ff96f9f0579.zip | |
crypto: af_alg - add extra parameters for DRBG interface
Extend the user-space RNG interface:
1. Add entropy input via ALG_SET_DRBG_ENTROPY setsockopt option;
2. Add additional data input via sendmsg syscall.
This allows DRBG to be tested with test vectors, for example for the
purpose of CAVP testing, which otherwise isn't possible.
To prevent erroneous use of entropy input, it is hidden under
CRYPTO_USER_API_RNG_CAVP config option and requires CAP_SYS_ADMIN to
succeed.
Signed-off-by: Elena Petrova <lenaptr@google.com>
Acked-by: Stephan Müller <smueller@chronox.de>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
| -rw-r--r-- | crypto/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index fac10143d23f..88f98caaf30d 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1875,6 +1875,15 @@ config CRYPTO_USER_API_RNG This option enables the user-spaces interface for random number generator algorithms. +config CRYPTO_USER_API_RNG_CAVP + bool "Enable CAVP testing of DRBG" + depends on CRYPTO_USER_API_RNG && CRYPTO_DRBG + help + This option enables extra API for CAVP testing via the user-space + interface: resetting of DRBG entropy, and providing Additional Data. + This should only be enabled for CAVP testing. You should say + no unless you know what this is. + config CRYPTO_USER_API_AEAD tristate "User-space interface for AEAD cipher algorithms" depends on NET |