# \[PATCH v1 0/4\] TPM2: select hash algorithm for a trusted key

- Subsystems: CRYPTO API, DOCUMENTATION, KEYS-TRUSTED, KEYS/KEYRINGS, SECURITY SUBSYSTEM, THE REST, TPM DEVICE DRIVER
- Maintainers: Herbert Xu, "David S. Miller", Jonathan Corbet, James Bottomley, Jarkko Sakkinen, Mimi Zohar, David Howells, Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds, Peter Huewe
- Series: 4 patches touching 8 files, +75/-7
- Status: SUPERSEDED (Superseded by v2 posted 2015-10-30)
- Superseded by v2 (posted 2015-10-30).
- Revision v1 (2 revisions archived).
- List: linux-api
- 2 messages, 1 author
- Page: https://ratatoskr.run/linux-api/2015/10/4609985/t

## \[PATCH v1 0/4\] TPM2: select hash algorithm for a trusted key

- From: Jarkko Sakkinen \<hidden\>
- Date: 2015-10-29 16:00:29 
- Message: https://ratatoskr.run/linux-api/2015/10/4609985.md

```text
Jarkko Sakkinen (4):
  crypto: add entry for sm3-256
  tpm: choose hash algorithm for sealing when using TPM 2.0
  keys, trusted: select the hash algorithm
  keys, trusted: update documentation for 'hash=' option

 Documentation/security/keys-trusted-encrypted.txt |  3 ++
 crypto/hash_info.c                                |  2 ++
 drivers/char/tpm/tpm.h                            | 10 ++++--
 drivers/char/tpm/tpm2-cmd.c                       | 42 +++++++++++++++++++++--
 include/crypto/hash_info.h                        |  3 ++
 include/keys/trusted-type.h                       |  1 +
 include/uapi/linux/hash_info.h                    |  1 +
 security/keys/trusted.c                           | 20 ++++++++++-
 8 files changed, 75 insertions(+), 7 deletions(-)

-- 
2.5.0
```

## \[PATCH v1 1/4\] crypto: add entry for sm3-256

- From: Jarkko Sakkinen \<hidden\>
- Date: 2015-10-29 16:00:34 
- Message: https://ratatoskr.run/linux-api/2015/10/4609986.md

```text
Added entry for sm3-256 to the following tables:

* hash_algo_name
* hash_digest_size

Needed for TPM 2.0 trusted key sealing.

Signed-off-by: Jarkko Sakkinen <redacted>
---
 crypto/hash_info.c             | 2 ++
 include/crypto/hash_info.h     | 3 +++
 include/uapi/linux/hash_info.h | 1 +
 3 files changed, 6 insertions(+)

diff --git a/crypto/hash_info.c b/crypto/hash_info.c
index 3e7ff46..6f3a113 100644
--- a/crypto/hash_info.c
+++ b/crypto/hash_info.c
@@ -31,6 +31,7 @@ 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",
 };
 EXPORT_SYMBOL_GPL(hash_algo_name);
 
@@ -52,5 +53,6 @@ const int hash_digest_size[HASH_ALGO__LAST] = {
 	[HASH_ALGO_TGR_128]	= TGR128_DIGEST_SIZE,
 	[HASH_ALGO_TGR_160]	= TGR160_DIGEST_SIZE,
 	[HASH_ALGO_TGR_192]	= TGR192_DIGEST_SIZE,
+	[HASH_ALGO_SM3_256]	= SM3_256_DIGEST_SIZE,
 };
 EXPORT_SYMBOL_GPL(hash_digest_size);
diff --git a/include/crypto/hash_info.h b/include/crypto/hash_info.h
index e1e5a3e..d86e050 100644
--- a/include/crypto/hash_info.h
+++ b/include/crypto/hash_info.h
@@ -34,6 +34,9 @@
 #define TGR160_DIGEST_SIZE 20
 #define TGR192_DIGEST_SIZE 24
 
+/* not defined in include/crypto/ */
+#define SM3_256_DIGEST_SIZE 32
+
 extern const char *const hash_algo_name[HASH_ALGO__LAST];
 extern const int hash_digest_size[HASH_ALGO__LAST];
 
diff --git a/include/uapi/linux/hash_info.h b/include/uapi/linux/hash_info.h
index ca18c45..ebf8fd8 100644
--- a/include/uapi/linux/hash_info.h
+++ b/include/uapi/linux/hash_info.h
@@ -31,6 +31,7 @@ enum hash_algo {
 	HASH_ALGO_TGR_128,
 	HASH_ALGO_TGR_160,
 	HASH_ALGO_TGR_192,
+	HASH_ALGO_SM3_256,
 	HASH_ALGO__LAST
 };
 
-- 
2.5.0
```