Docs: Correct some spelling error
Change-Id: I0a7006dc816b204284bce2793187942250720a18
Signed-off-by: Edison Ai <edison.ai@arm.com>
diff --git a/docs/design_documents/symmetric_initial_attest.rst b/docs/design_documents/symmetric_initial_attest.rst
index a763433..afd2fd2 100644
--- a/docs/design_documents/symmetric_initial_attest.rst
+++ b/docs/design_documents/symmetric_initial_attest.rst
@@ -15,7 +15,7 @@
Symmetric key algorithm based Initial Attestation
(*symmetric Initial Attestation* for short) signs and verifies Initial
-Attestation Token (IAT) with a symmetric crypotgraphy signature scheme, such as
+Attestation Token (IAT) with a symmetric cryptography signature scheme, such as
HMAC.
It can reduce TF-M binary size and memory footprint on ultra-constrained devices
without integrating asymmetric ciphers.