[PATCH] IMA hash algorithm supports sm3

[PATCH] IMA hash algorithm supports sm3

[Tianjia Zhang]

Fixed an issue where the sm3 algorithm name mismatch in the crypto subsystem hash_algo_name.
Make IMA support sm3 hash algorithm, added support for sm3 in IMA algorithm Kconfig configuration.

[PATCH 1/2] crypto: rename sm3-256 to sm3 in hash_algo_name

[Tianjia Zhang]

The name sm3-256 is defined in hash_algo_name in hash_info, but the
algorithm name implemented in sm3_generic.c is sm3, which will cause
the sm3-256 algorithm to be not found in some application scenarios of
the hash algorithm, and an ENOENT error will occur. For example,
IMA, keys, and other subsystems that reference hash_algo_name all use
the hash algorithm of sm3.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
---
 crypto/hash_info.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/hash_info.c b/crypto/hash_info.c
index c754cb75dd1a..a49ff96bde77 100644
--- a/crypto/hash_info.c
+++ b/crypto/hash_info.c
@@ -26,7 +26,7 @@ const char *const hash_algo_name[HASH_ALGO__LAST] = {
 	[HASH_ALGO_TGR_128]	= "tgr128",
 	[HASH_ALGO_TGR_160]	= "tgr160",
 	[HASH_ALGO_TGR_192]	= "tgr192",
-	[HASH_ALGO_SM3_256]	= "sm3-256",
+	[HASH_ALGO_SM3_256]	= "sm3",
 	[HASH_ALGO_STREEBOG_256] = "streebog256",
 	[HASH_ALGO_STREEBOG_512] = "streebog512",
 };
-- 
2.17.1

Re: [PATCH 1/2] crypto: rename sm3-256 to sm3 in hash_algo_name

[Mimi Zohar]

[Cc'ing Jarkko]

On Mon, 2020-02-10 at 20:44 +0800, Tianjia Zhang wrote:
> The name sm3-256 is defined in hash_algo_name in hash_info, but the
> algorithm name implemented in sm3_generic.c is sm3, which will cause
> the sm3-256 algorithm to be not found in some application scenarios of
> the hash algorithm, and an ENOENT error will occur. For example,
> IMA, keys, and other subsystems that reference hash_algo_name all use
> the hash algorithm of sm3.
> 
> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>

Missing is the "Fixes" tag and Cc'ing the person who upstreamed "sm3-
256" in the first place.

Mimi

> ---
>  crypto/hash_info.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/crypto/hash_info.c b/crypto/hash_info.c
> index c754cb75dd1a..a49ff96bde77 100644
> --- a/crypto/hash_info.c
> +++ b/crypto/hash_info.c
> @@ -26,7 +26,7 @@ const char *const hash_algo_name[HASH_ALGO__LAST] = {
>  	[HASH_ALGO_TGR_128]	= "tgr128",
>  	[HASH_ALGO_TGR_160]	= "tgr160",
>  	[HASH_ALGO_TGR_192]	= "tgr192",
> -	[HASH_ALGO_SM3_256]	= "sm3-256",
> +	[HASH_ALGO_SM3_256]	= "sm3",
>  	[HASH_ALGO_STREEBOG_256] = "streebog256",
>  	[HASH_ALGO_STREEBOG_512] = "streebog512",
>  };

Re: [PATCH 1/2] crypto: rename sm3-256 to sm3 in hash_algo_name

[Mimi Zohar]

On Mon, 2020-02-10 at 20:44 +0800, Tianjia Zhang wrote:
> The name sm3-256 is defined in hash_algo_name in hash_info, but the
> algorithm name implemented in sm3_generic.c is sm3, which will cause
> the sm3-256 algorithm to be not found in some application scenarios of
> the hash algorithm, and an ENOENT error will occur. For example,
> IMA, keys, and other subsystems that reference hash_algo_name all use
> the hash algorithm of sm3.
> 
> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>

The "hash_map" needs to be updated to reflect this change.

static struct tpm2_hash tpm2_hash_map[] = {
        {HASH_ALGO_SHA1, TPM_ALG_SHA1},
        {HASH_ALGO_SHA256, TPM_ALG_SHA256},
        {HASH_ALGO_SHA384, TPM_ALG_SHA384},
        {HASH_ALGO_SHA512, TPM_ALG_SHA512},
        {HASH_ALGO_SM3_256, TPM_ALG_SM3_256},
};

Mimi

> ---
>  crypto/hash_info.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/crypto/hash_info.c b/crypto/hash_info.c
> index c754cb75dd1a..a49ff96bde77 100644
> --- a/crypto/hash_info.c
> +++ b/crypto/hash_info.c
> @@ -26,7 +26,7 @@ const char *const hash_algo_name[HASH_ALGO__LAST] = {
>  	[HASH_ALGO_TGR_128]	= "tgr128",
>  	[HASH_ALGO_TGR_160]	= "tgr160",
>  	[HASH_ALGO_TGR_192]	= "tgr192",
> -	[HASH_ALGO_SM3_256]	= "sm3-256",
> +	[HASH_ALGO_SM3_256]	= "sm3",
>  	[HASH_ALGO_STREEBOG_256] = "streebog256",
>  	[HASH_ALGO_STREEBOG_512] = "streebog512",
>  };

Re: [PATCH 1/2] crypto: rename sm3-256 to sm3 in hash_algo_name

[Mimi Zohar]

On Tue, 2020-02-11 at 16:49 -0500, Mimi Zohar wrote:
> On Mon, 2020-02-10 at 20:44 +0800, Tianjia Zhang wrote:
> > The name sm3-256 is defined in hash_algo_name in hash_info, but the
> > algorithm name implemented in sm3_generic.c is sm3, which will cause
> > the sm3-256 algorithm to be not found in some application scenarios of
> > the hash algorithm, and an ENOENT error will occur. For example,
> > IMA, keys, and other subsystems that reference hash_algo_name all use
> > the hash algorithm of sm3.
> > 
> > Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
> 
> The "hash_map" needs to be updated to reflect this change.
> 
> static struct tpm2_hash tpm2_hash_map[] = {
>         {HASH_ALGO_SHA1, TPM_ALG_SHA1},
>         {HASH_ALGO_SHA256, TPM_ALG_SHA256},
>         {HASH_ALGO_SHA384, TPM_ALG_SHA384},
>         {HASH_ALGO_SHA512, TPM_ALG_SHA512},
>         {HASH_ALGO_SM3_256, TPM_ALG_SM3_256},
> };

Never mind, the enum name "HASH_ALGO_SM3_256" didn't change.  Just the
string changed.

Mimi

[PATCH 2/2] ima: add sm3 algorithm to hash algorithm configuration list

[Tianjia Zhang]

sm3 has been supported by the ima hash algorithm, but it is not
yet in the Kconfig configuration list. After adding, both ima and tpm2
can support sm3 well.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
---
 security/integrity/ima/Kconfig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index 838476d780e5..ace6762c1cf1 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -112,6 +112,10 @@ choice
 	config IMA_DEFAULT_HASH_WP512
 		bool "WP512"
 		depends on CRYPTO_WP512=y && !IMA_TEMPLATE
+
+	config IMA_DEFAULT_HASH_SM3
+		bool "SM3"
+		depends on CRYPTO_SM3=y && !IMA_TEMPLATE
 endchoice
 
 config IMA_DEFAULT_HASH
@@ -121,6 +125,7 @@ config IMA_DEFAULT_HASH
 	default "sha256" if IMA_DEFAULT_HASH_SHA256
 	default "sha512" if IMA_DEFAULT_HASH_SHA512
 	default "wp512" if IMA_DEFAULT_HASH_WP512
+	default "sm3" if IMA_DEFAULT_HASH_SM3
 
 config IMA_WRITE_POLICY
 	bool "Enable multiple writes to the IMA policy"
-- 
2.17.1

RE: [PATCH 1/2] crypto: rename sm3-256 to sm3 in hash_algo_name

[Van Leeuwen, Pascal]

> -----Original Message-----
> From: linux-crypto-owner@vger.kernel.org <linux-crypto-owner@vger.kernel.org> On Behalf Of Tianjia Zhang
> Sent: Monday, February 10, 2020 1:45 PM
> To: herbert@gondor.apana.org.au; davem@davemloft.net; zohar@linux.ibm.com; dmitry.kasatkin@gmail.com; jmorris@namei.org;
> serge@hallyn.com; ebiggers@kernel.org
> Cc: linux-crypto@vger.kernel.org; linux-integrity@vger.kernel.org; linux-security-module@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Subject: [PATCH 1/2] crypto: rename sm3-256 to sm3 in hash_algo_name
>
> <<< External Email >>>
> CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the
> sender/sender address and know the content is safe.
>
>
> The name sm3-256 is defined in hash_algo_name in hash_info, but the
> algorithm name implemented in sm3_generic.c is sm3, which will cause
> the sm3-256 algorithm to be not found in some application scenarios of
> the hash algorithm, and an ENOENT error will occur. For example,
> IMA, keys, and other subsystems that reference hash_algo_name all use
> the hash algorithm of sm3.
>
> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Pascal van Leeuwen <pvanleeuwen@rambus.com>

> ---
>  crypto/hash_info.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/crypto/hash_info.c b/crypto/hash_info.c
> index c754cb75dd1a..a49ff96bde77 100644
> --- a/crypto/hash_info.c
> +++ b/crypto/hash_info.c
> @@ -26,7 +26,7 @@ const char *const hash_algo_name[HASH_ALGO__LAST] = {
>         [HASH_ALGO_TGR_128]     = "tgr128",
>         [HASH_ALGO_TGR_160]     = "tgr160",
>         [HASH_ALGO_TGR_192]     = "tgr192",
> -       [HASH_ALGO_SM3_256]     = "sm3-256",
> +       [HASH_ALGO_SM3_256]     = "sm3",
>         [HASH_ALGO_STREEBOG_256] = "streebog256",
>         [HASH_ALGO_STREEBOG_512] = "streebog512",
>  };
> --
> 2.17.1

Regards,
Pascal van Leeuwen
Silicon IP Architect Multi-Protocol Engines, Rambus Security
Rambus ROTW Holding BV
+31-73 6581953

Note: The Inside Secure/Verimatrix Silicon IP team was recently acquired by Rambus.
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