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+
+# This set of commands creates an RSA public/private key pair,
+# self-signs it, then puts it all in a pkcs12 container with
+# the password "blueberry"
+#
+# We use these files in the test_ccnx_FileKeystore tests.
+
+openssl genrsa -out test_rsa_key.pem
+openssl rsa -pubout -in test_rsa_key.pem -out test_rsa_pub.pem
+openssl req -new -key test_rsa_key.pem  -out test_rsa.csr
+openssl x509 -req -days 365 -in test_rsa.csr -signkey test_rsa_key.pem -out test_rsa.crt
+openssl pkcs12 -export -in test_rsa.crt -inkey test_rsa_key.pem -out test_rsa.p12 -name ccnxuser -CAfile test_rsa.crt -caname root -chain -passout pass:blueberry
+
+# saves the public key in DER form so we can calculate the sha256 of it
+openssl rsa -in test_rsa_key.pem -outform DER -pubout -out test_rsa_pub.der
+
+# save the private key in DER form so we can compare in code
+openssl rsa -in test_rsa_key.pem -outform DER -out test_rsa_key.der
+
+# computes the sha256 and saves it in binary form
+openssl sha256 -out test_rsa_pub_sha256.bin -sha256 -binary < test_rsa_pub.der
+
+# Save the certificate in DER form, then get the SHA256 hash of it
+# These are similar to doing "openssl x509 -in test_rsa.crt -fingerprint -sha256"
+openssl x509 -outform DER -out test_rsa_crt.der -in test_rsa.crt
+openssl sha256 -out test_rsa_crt_sha256.bin -sha256 -binary < test_rsa_crt.der
+
+# To verify signing, we create a random buffer, then sign with a SHA256 digest
+
+dd if=/dev/urandom of=test_random_bytes bs=512 count=1
+openssl sha -sha256 -sign test_rsa_key.pem -out test_random_bytes.sig < test_random_bytes
+
+# the "-in test_rsa_pub_sha256.bin" is the binary digest we will sign.
+openssl rsautl -sign -inkey test_rsa_key.pem -in test_rsa_pub_sha256.bin -out test_rsa_pub_sha256.bin.sig
+