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Fix SM3 hash length (bits/bytes confusion)

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2026-02-16 11:07:24 +01:00
parent 4857228971
commit c99fb5762d
1 changed files with 4 additions and 4 deletions
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scripts/mbedtls_framework/crypto_knowledge.py
+4 -4
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@@ -489,20 +489,20 @@ class Algorithm:
"""
return short_expression(self.expression, level=level)
HASH_LENGTH = {
HASH_LENGTH_BYTES = {
'PSA_ALG_AES_MMO_ZIGBEE': 16,
'PSA_ALG_MD2': 16,
'PSA_ALG_MD4': 16,
'PSA_ALG_MD5': 16,
'PSA_ALG_SHA_1': 20,
'PSA_ALG_SM3': 256,
'PSA_ALG_SM3': 32,
}
HASH_LENGTH_BITS_RE = re.compile(r'([0-9]+)\Z')
@classmethod
def hash_length(cls, alg: str) -> int:
"""The length of the given hash algorithm, in bytes."""
if alg in cls.HASH_LENGTH:
return cls.HASH_LENGTH[alg]
if alg in cls.HASH_LENGTH_BYTES:
return cls.HASH_LENGTH_BYTES[alg]
m = cls.HASH_LENGTH_BITS_RE.search(alg)
if m:
return int(m.group(1)) // 8