[PATCH] kmod: Add FIPS 202 SHA-3 support

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Add support for parsing FIPS 202 SHA-3 signature hashes. Separately,
it is not clear why explicit hashes are re-encoded here, instead of
trying to generically show any digest openssl supports.

Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@xxxxxxxxxxxxx>
---
 libkmod/libkmod-signature.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/libkmod/libkmod-signature.c b/libkmod/libkmod-signature.c
index b749a818f9..a39059cd7c 100644
--- a/libkmod/libkmod-signature.c
+++ b/libkmod/libkmod-signature.c
@@ -57,6 +57,9 @@ enum pkey_hash_algo {
 	PKEY_HASH_SHA512,
 	PKEY_HASH_SHA224,
 	PKEY_HASH_SM3,
+	PKEY_HASH_SHA3_256,
+	PKEY_HASH_SHA3_384,
+	PKEY_HASH_SHA3_512,
 	PKEY_HASH__LAST
 };
 
@@ -70,6 +73,9 @@ const char *const pkey_hash_algo[PKEY_HASH__LAST] = {
 	[PKEY_HASH_SHA512]	= "sha512",
 	[PKEY_HASH_SHA224]	= "sha224",
 	[PKEY_HASH_SM3]		= "sm3",
+	[PKEY_HASH_SHA3_256]	= "sha3-256",
+	[PKEY_HASH_SHA3_384]	= "sha3-384",
+	[PKEY_HASH_SHA3_512]	= "sha3-512",
 };
 
 enum pkey_id_type {
@@ -167,6 +173,12 @@ static int obj_to_hash_algo(const ASN1_OBJECT *o)
 	case NID_sm3:
 		return PKEY_HASH_SM3;
 # endif
+	case NID_sha3_256:
+		return PKEY_HASH_SHA3_256;
+	case NID_sha3_384:
+		return PKEY_HASH_SHA3_384;
+	case NID_sha3_512:
+		return PKEY_HASH_SHA3_512;
 	default:
 		return -1;
 	}
-- 
2.34.1





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