imgtool: allow verify mode to use public ed25519 keys (ae9d256c) · Commits · Wenxi XU / Mcuboot

Verify mode already works for the public halves of RSA and ECDSA keypairs. This patch corrects an apparent oversight, enabling that functionality in Ed25519. Signed-off-by:

Ross Younger <crazyscot@gmail.com>

scripts/imgtool/keys/ed25519.py

+7 −7

Original line number	Diff line number	Diff line
		@@ -57,6 +57,13 @@ class Ed25519Public(KeyClass):
		def sig_len(self):
		return 64

		def verify_digest(self, signature, digest):
		"""Verify that signature is valid for given digest"""
		k = self.key
		if isinstance(self.key, ed25519.Ed25519PrivateKey):
		k = self.key.public_key()
		return k.verify(signature=signature, data=digest)


		class Ed25519(Ed25519Public):
		"""
		@@ -98,10 +105,3 @@ class Ed25519(Ed25519Public):
		def sign_digest(self, digest):
		"""Return the actual signature"""
		return self.key.sign(data=digest)

		def verify_digest(self, signature, digest):
		"""Verify that signature is valid for given digest"""
		k = self.key
		if isinstance(self.key, ed25519.Ed25519PrivateKey):
		k = self.key.public_key()
		return k.verify(signature=signature, data=digest)

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