Signature did not match digest.

Package:

4288

Exception Class:

InvalidSignature

Raise code

        res = self._backend._lib.CMAC_CTX_copy(copied_ctx, self._ctx)
        self._backend.openssl_assert(res == 1)
        return _CMACContext(self._backend, self._algorithm, ctx=copied_ctx)

    def verify(self, signature: bytes) -> None:
        digest = self.finalize()
        if not constant_time.bytes_eq(digest, signature):
            raise InvalidSignature("Signature did not match digest.")

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Links to the raise (2)

https://github.com/pyca/cryptography/blob/7bb03065237d9a16477e2d94734638aa8f8ba692/src/cryptography/hazmat/backends/openssl/cmac.py#L80 https://github.com/pyca/cryptography/blob/7bb03065237d9a16477e2d94734638aa8f8ba692/src/cryptography/hazmat/backends/openssl/hmac.py#L76

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