[PATCH] crypto: testmgr - disallow certain DRBG hash functions in FIPS mode

[PATCH] crypto: testmgr - disallow certain DRBG hash functions in FIPS mode

[Vladis Dronov]

According to FIPS 140-3 IG, section D.R "Hash Functions Acceptable for
Use in the SP 800-90A DRBGs", modules certified after May 16th, 2023
must not support the use of: SHA-224, SHA-384, SHA512-224, SHA512-256,
SHA3-224, SHA3-384. Disallow HMAC and HASH DRBGs using SHA-384 in FIPS
mode.

Signed-off-by: Vladis Dronov <vdronov@redhat.com>
---
Some details:

The following DRBG algos are defined in testmgr.c as of now:

drbg_{no,}pr_ctr_aes128
drbg_{no,}pr_ctr_aes192
drbg_{no,}pr_ctr_aes256

drbg_{no,}pr_hmac_sha1
drbg_{no,}pr_hmac_sha256
drbg_{no,}pr_hmac_sha384 (disallow)
drbg_{no,}pr_hmac_sha512

drbg_{no,}pr_sha1
drbg_{no,}pr_sha256
drbg_{no,}pr_sha384 (disallow)
drbg_{no,}pr_sha512

Marked DRBGs should be disallowed in FIPS mode according to
the requirements above.
---
 crypto/testmgr.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 4476ac97baa5..fbb53d961ea9 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -4782,7 +4782,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 	}, {
 		/* covered by drbg_nopr_hmac_sha256 test */
 		.alg = "drbg_nopr_hmac_sha384",
-		.fips_allowed = 1,
 		.test = alg_test_null,
 	}, {
 		.alg = "drbg_nopr_hmac_sha512",
@@ -4805,7 +4804,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 	}, {
 		/* covered by drbg_nopr_sha256 test */
 		.alg = "drbg_nopr_sha384",
-		.fips_allowed = 1,
 		.test = alg_test_null,
 	}, {
 		.alg = "drbg_nopr_sha512",
@@ -4841,7 +4839,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 	}, {
 		/* covered by drbg_pr_hmac_sha256 test */
 		.alg = "drbg_pr_hmac_sha384",
-		.fips_allowed = 1,
 		.test = alg_test_null,
 	}, {
 		.alg = "drbg_pr_hmac_sha512",
@@ -4861,7 +4858,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 	}, {
 		/* covered by drbg_pr_sha256 test */
 		.alg = "drbg_pr_sha384",
-		.fips_allowed = 1,
 		.test = alg_test_null,
 	}, {
 		.alg = "drbg_pr_sha512",
-- 
2.39.0

Re: [PATCH] crypto: testmgr - disallow certain DRBG hash functions in FIPS mode

[Stephan Müller]

Am Dienstag, 17. Januar 2023, 18:20:06 CET schrieb Vladis Dronov:

Hi Vladis,

> According to FIPS 140-3 IG, section D.R "Hash Functions Acceptable for
> Use in the SP 800-90A DRBGs", modules certified after May 16th, 2023
> must not support the use of: SHA-224, SHA-384, SHA512-224, SHA512-256,
> SHA3-224, SHA3-384. Disallow HMAC and HASH DRBGs using SHA-384 in FIPS
> mode.
> 
> Signed-off-by: Vladis Dronov <vdronov@redhat.com>

Thank you very much for the patch!

Reviewed-by: Stephan Müller <smueller@chronox.de>

> ---
> Some details:
> 
> The following DRBG algos are defined in testmgr.c as of now:
> 
> drbg_{no,}pr_ctr_aes128
> drbg_{no,}pr_ctr_aes192
> drbg_{no,}pr_ctr_aes256
> 
> drbg_{no,}pr_hmac_sha1
> drbg_{no,}pr_hmac_sha256
> drbg_{no,}pr_hmac_sha384 (disallow)
> drbg_{no,}pr_hmac_sha512
> 
> drbg_{no,}pr_sha1
> drbg_{no,}pr_sha256
> drbg_{no,}pr_sha384 (disallow)
> drbg_{no,}pr_sha512
> 
> Marked DRBGs should be disallowed in FIPS mode according to
> the requirements above.
> ---
>  crypto/testmgr.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/crypto/testmgr.c b/crypto/testmgr.c
> index 4476ac97baa5..fbb53d961ea9 100644
> --- a/crypto/testmgr.c
> +++ b/crypto/testmgr.c
> @@ -4782,7 +4782,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
>  		/* covered by drbg_nopr_hmac_sha256 test */
>  		.alg = "drbg_nopr_hmac_sha384",
> -		.fips_allowed = 1,
>  		.test = alg_test_null,
>  	}, {
>  		.alg = "drbg_nopr_hmac_sha512",
> @@ -4805,7 +4804,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
>  		/* covered by drbg_nopr_sha256 test */
>  		.alg = "drbg_nopr_sha384",
> -		.fips_allowed = 1,
>  		.test = alg_test_null,
>  	}, {
>  		.alg = "drbg_nopr_sha512",
> @@ -4841,7 +4839,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
>  		/* covered by drbg_pr_hmac_sha256 test */
>  		.alg = "drbg_pr_hmac_sha384",
> -		.fips_allowed = 1,
>  		.test = alg_test_null,
>  	}, {
>  		.alg = "drbg_pr_hmac_sha512",
> @@ -4861,7 +4858,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
>  		/* covered by drbg_pr_sha256 test */
>  		.alg = "drbg_pr_sha384",
> -		.fips_allowed = 1,
>  		.test = alg_test_null,
>  	}, {
>  		.alg = "drbg_pr_sha512",


Ciao
Stephan

Re: [PATCH] crypto: testmgr - disallow certain DRBG hash functions in FIPS mode

[Herbert Xu]

On Tue, Jan 17, 2023 at 06:20:06PM +0100, Vladis Dronov wrote:
> According to FIPS 140-3 IG, section D.R "Hash Functions Acceptable for
> Use in the SP 800-90A DRBGs", modules certified after May 16th, 2023
> must not support the use of: SHA-224, SHA-384, SHA512-224, SHA512-256,
> SHA3-224, SHA3-384. Disallow HMAC and HASH DRBGs using SHA-384 in FIPS
> mode.
> 
> Signed-off-by: Vladis Dronov <vdronov@redhat.com>
> ---
> Some details:
> 
> The following DRBG algos are defined in testmgr.c as of now:
> 
> drbg_{no,}pr_ctr_aes128
> drbg_{no,}pr_ctr_aes192
> drbg_{no,}pr_ctr_aes256
> 
> drbg_{no,}pr_hmac_sha1
> drbg_{no,}pr_hmac_sha256
> drbg_{no,}pr_hmac_sha384 (disallow)
> drbg_{no,}pr_hmac_sha512
> 
> drbg_{no,}pr_sha1
> drbg_{no,}pr_sha256
> drbg_{no,}pr_sha384 (disallow)
> drbg_{no,}pr_sha512
> 
> Marked DRBGs should be disallowed in FIPS mode according to
> the requirements above.
> ---
>  crypto/testmgr.c | 4 ----
>  1 file changed, 4 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt