Files
CipherStreamAPI/src/main/java/com/mattrixwv/cipherstream/controller/polysubstitution/HillCipherController.java
2024-04-16 16:08:18 -04:00

81 lines
3.3 KiB
Java

package com.mattrixwv.cipherstream.controller.polysubstitution;
import org.slf4j.MDC;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.mattrixwv.cipherstream.aspect.CipherStreamLoggingAspect;
import com.mattrixwv.cipherstream.polysubstitution.Hill;
import com.mattrixwv.cipherstream.utils.CipherInfoUtil;
import com.mattrixwv.cipherstream.utils.CipherParameterUtil;
import lombok.extern.slf4j.Slf4j;
@Slf4j
@RestController
@RequestMapping("/cipherStream/hill")
public class HillCipherController{
@GetMapping
public ObjectNode getCipherInfo(){
MDC.put(CipherStreamLoggingAspect.CIPHER_NAME_LOGGING, CipherInfoUtil.HILL_CIPHER_NAME);
log.info("Getting info for {}", CipherInfoUtil.HILL_CIPHER_NAME);
return CipherInfoUtil.buildInfoNode(CipherInfoUtil.HILL_CIPHER_NAME, CipherInfoUtil.HILL_CIPHER_DESCRIPTION);
}
@PostMapping("/encode")
public ObjectNode encodeHill(@RequestBody ObjectNode cipherParams) throws JsonProcessingException{
MDC.put(CipherStreamLoggingAspect.CIPHER_NAME_LOGGING, CipherInfoUtil.HILL_CIPHER_NAME);
log.info("Encoding {}", CipherInfoUtil.HILL_CIPHER_NAME);
CipherParameterUtil.verifyHillParams(cipherParams);
boolean preserveCapitals = cipherParams.get(CipherParameterUtil.PRESERVE_CAPITALS).asBoolean();
boolean preserveWhitespace = cipherParams.get(CipherParameterUtil.PRESERVE_WHITESPACE).asBoolean();
boolean preserveSymbols = cipherParams.get(CipherParameterUtil.PRESERVE_SYMBOLS).asBoolean();
int[][] key = new ObjectMapper().treeToValue(cipherParams.get(CipherParameterUtil.HILL_KEY), int[][].class);
String inputString = cipherParams.get(CipherParameterUtil.INPUT_STRING).asText();
Hill hill = new Hill(preserveCapitals, preserveWhitespace, preserveSymbols);
String outputString = hill.encode(key, inputString);
cipherParams.put(CipherParameterUtil.OUTPUT_STRING, outputString);
return cipherParams;
}
@PostMapping("/decode")
public ObjectNode decodeHill(@RequestBody ObjectNode cipherParams) throws JsonProcessingException{
MDC.put(CipherStreamLoggingAspect.CIPHER_NAME_LOGGING, CipherInfoUtil.HILL_CIPHER_NAME);
log.info("Decoding {}", CipherInfoUtil.HILL_CIPHER_NAME);
CipherParameterUtil.verifyHillParams(cipherParams);
boolean preserveCapitals = cipherParams.get(CipherParameterUtil.PRESERVE_CAPITALS).asBoolean();
boolean preserveWhitespace = cipherParams.get(CipherParameterUtil.PRESERVE_WHITESPACE).asBoolean();
boolean preserveSymbols = cipherParams.get(CipherParameterUtil.PRESERVE_SYMBOLS).asBoolean();
int[][] key = new ObjectMapper().treeToValue(cipherParams.get(CipherParameterUtil.HILL_KEY), int[][].class);
String inputString = cipherParams.get(CipherParameterUtil.INPUT_STRING).asText();
Hill hill = new Hill(preserveCapitals, preserveWhitespace, preserveSymbols);
String outputString = hill.decode(key, inputString);
cipherParams.put(CipherParameterUtil.OUTPUT_STRING, outputString);
return cipherParams;
}
}