AWieclawski/edu.awieclawski.rsa

RSA key generator, use greatest common divisor, Euler's phi, coprime numbers

Description

RSA key generator, use greatest common divisor, Euler's phi, coprime numbers (no Maven etc.)

1. Comand-Line manager in edu.awieclawski.cmd.rsa.MainManager;
2. Web-App in edu.awieclawski.web.* (servlets,jsp,css,jstl);
3. API Rest in edu.awieclawski.web.rest;

Web-App

instruction:

1. Install Tomcat 8.0 in <$ECLIPSE_WORKSSPACE>/tomcat80
2. Add <$ECLIPSE_WORKSSPACE>/tomcat80/lib/servlet-api.jar to the Project Java BuildPath libraries
3. Add the Project to the Server in the Server Eclipse tab
4. Deploy & visit at http://localhost:8080/edu.awieclawski.rsa/welcome

example data:

• p=11,q=23,e=29->d=129
• p=113,q=241,e=827->d=5363

Rest API

requirements:

1. Download from: https://eclipse-ee4j.github.io/jersey/download.html the archive 'jaxrs-ri-2.25.1.zip' described as 'Jersey JAX-RS 2.0 RI bundle bundle contains the JAX-RS 2.0 API jar, all the core Jersey module jars as well as all the required 3rd-party dependencies.'
2. Extract the archive and add all the jars (by mouse right click on the Project):

• to the 'BuildPath' > 'Libraries' tab
• to the 'Properties' > 'Deployment Assembly'

3. Deploy, by 'Run on Server' in Eclipse.
4. Put in section of 'server.xml' (Tomcat instance) following line:

<Valve className="org.apache.catalina.valves.ErrorReportValve"
showReport="false" showServerInfo="false" />

to avoid html report as error responses.

examples:

• visit Hello page at:

http://localhost:8080/edu.awieclawski.rsa/rest/api

• get client Agent:

http://localhost:8080/edu.awieclawski.rsa/rest/api/agent

• get client Host:

http://localhost:8080/edu.awieclawski.rsa/rest/api/host

• get client Headers:

http://localhost:8080/edu.awieclawski.rsa/rest/api/headers

• check if prime number:

http://localhost:8080/edu.awieclawski.rsa/rest/api/isprime/29

-> returns '29';

http://localhost:8080/edu.awieclawski.rsa/rest/api/isprime/22

-> returns 'HTTP Status 417 - Expectation Failed';

http://localhost:8080/edu.awieclawski.rsa/rest/api/isprime/aa

-> returns 'HTTP Status 406 - Not Acceptable';

JSON requirements:

1. Download jars from Maven repos:

• jackson-annotations-2.2.3.jar
• jackson-core-2.2.3.jar
• jackson-databind-2.2.3.jar
• jackson-jaxrs-base-2.2.3.jar
• jackson-jaxrs-json-provider-2.2.3.jar
• jackson-jaxrs-xml-provider-2.2.3.jar
• jackson-module-jaxb-annotations-2.2.3.jar

2. add mentioned above jars (by right click on the Project)

• to the 'BuildPath' > 'Libraries' of the Project
• to the 'Properties' > 'Deployment Assembly'

examples:

• type in http browser:

http://localhost:8080/edu.awieclawski.rsa/rest/api/isprime_rj/29

-> returns {"value":29,"reqid":"20210504182903794"} as JSON;

• type in cmdl:

curl --header "Content-Type: application/json"
--request POST
--data '{"modulusn":253,"pubkey":29}'
http://localhost:8080/edu.awieclawski.rsa/rest/api/coprimes_rj

-> returns {"modulusn":253,"pubkey":29,"phin":220,"reqid":"20210504222925995"} as JSON;

curl --header "Content-Type: application/json"
--request POST
--data '{"phin":244,"pubkey":29}'
http://localhost:8080/edu.awieclawski.rsa/rest/api/coprimes_rj

-> returns HTTP Status 417 - Expectation Failed

curl --header "Content-Type: application/json"
--request POST
--data '{"modulusn":253,"key":29,"message":"ala ma kotA"}'
http://localhost:8080/edu.awieclawski.rsa/rest/api/encode_rj

-> returns {"modulusn":253,"key":29,"message":"ala ma kotA","encoded":[247,225,247,142,43,247,142,172,199,24,153],"reqid":"20210506202116153"}

curl --header "Content-Type: application/json" --request POST --data '{"modulusn":266,"key":22,"message":"ala ma kotA"}' \http://localhost:8080/edu.awieclawski.rsa/rest/api/encode_rj

-> returns HTTP Status 406 - Not Acceptable