Added parameters to keygen script

README.md

@@ -0,0 +1,16 @@
+
+# Email server
+
+Add an email address for use in your [IRMA app](https://github.com/privacybydesign/irma_mobile).
+
+
+## Setting up the server
+
+1. Generate JWT keys for the issuer
+```bash
+./utils/keygen.sh ./src/main/resources/sk ./src/main/resources/pk
+```
+2. Copy the file `src/main/resources/config.sample.json` to
+ `build/resources/main/config.json` and modify it.
+3. Run `gradle appRun` in the root directory of this project.
+4. Navigate to `http://localhost:8080/irma_email_issuer/api/hello`

utils/keygen.sh

@@ -1,20 +1,34 @@
 #!/bin/bash
 
-dir=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
+# Check if openssl exists
+if ! type openssl >/dev/null 2>&1; then
+    >&2 echo "openssl not found, exiting"
+    exit 1
+fi
 
-SK=$dir/../build/resources/main/sk
-PK=$dir/../build/resources/main/pk
+if [[ $# -eq 0 ]]; then
+	SK=sk
+	PK=pk
+fi
+if [[ $# -eq 1 ]]; then
+	>&2 echo "Either supply 0 or 2 arguments"
+	exit 1
+fi
+if [[ $# -eq 2 ]]; then
+	SK=$1
+	PK=$2
+fi
 
-if [ ! -e "$SK" ]; then
-    # Generate a private key in PEM format
-    openssl genrsa -out ${SK}.pem 2048
-    # Convert it to DER for Java
-    openssl pkcs8 -topk8 -inform PEM -outform DER -in ${SK}.pem -out ${SK}.der -nocrypt
-    # Calculate corresponding public key, saved in PEM format
-    openssl rsa -in ${SK}.pem -pubout -outform PEM -out ${PK}.pem
-    # Calculate corresponding public key, saved in DER format
-    openssl rsa -in ${SK}.pem -pubout -outform DER -out ${PK}.der
-    # Remove leftover files
+if [ -e ${SK}.der ] || [ -e ${PK}.der ]; then
+    echo "Keys already exist, not generating new ones"
+    exit
 fi
-rm -f ${SK}.pem
-rm -f ${PK}.pem
+
+# Generate a private key in PEM format
+openssl genrsa -out ${SK}.pem 2048
+# Convert it to DER for Java
+openssl pkcs8 -topk8 -inform PEM -outform DER -in ${SK}.pem -out ${SK}.der -nocrypt
+# Calculate corresponding public key, saved in PEM format
+openssl rsa -in ${SK}.pem -pubout -outform PEM -out ${PK}.pem
+# Calculate corresponding public key, saved in DER format
+openssl rsa -in ${SK}.pem -pubout -outform DER -out ${PK}.der