Add tag check to cert algorithm check
Add missing tag check for algorithm parameters when comparing the
signature in the description part of the cert against the actual
signature whilst loading a certificate. This was found by a
certificate (created by fuzzing) that openssl would not verify, but
mbedtls would.
Regression test added (one of the client certs modified accordingly)
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/tests/data_files/Makefile b/tests/data_files/Makefile
index 61edad1..d76aa5d 100644
--- a/tests/data_files/Makefile
+++ b/tests/data_files/Makefile
@@ -129,6 +129,14 @@
$(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa -CA test-ca-sha256.crt -CAkey $(test_ca_key_file_rsa) -passin "pass:$(test_ca_pwd_rsa)" -set_serial 4 -days 3653 -sha256 -in cli-rsa.csr -out $@
all_final += cli-rsa-sha256.crt
+cli-rsa-sha256.crt.der: cli-rsa-sha256.crt
+ $(OPENSSL) x509 -in $< -out $@ -inform PEM -outform DER
+all_final += cli-rsa-sha256.crt.der
+
+cli-rsa-sha256-badalg.crt.der: cli-rsa-sha256.crt.der
+ hexdump -ve '1/1 "%.2X"' $< | sed "s/06092A864886F70D01010B0500/06092A864886F70D01010B0900/2" | xxd -r -p > $@
+all_final += cli-rsa-sha256-badalg.crt.der
+
server2-rsa.csr: server2.key
$(OPENSSL) req -new -key server2.key -passin "pass:$(test_ca_pwd_rsa)" -subj "/C=NL/O=PolarSSL/CN=localhost" -out $@
all_intermediate += server2-rsa.csr