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encryption.js
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encryption.js
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// Ceccun Encryption Service
const crypto_sourceMap =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-_.!~*'() =";
const encrypt = (data, key) => {
const sourceMapSplit = crypto_sourceMap.split("");
const keyB64 = btoa(encodeURIComponent(key));
var keyPairTable = generateKeyPair(keyB64);
const dataSplit = btoa(encodeURIComponent(data)).split("");
var output = [];
for (item of dataSplit) {
output.push(keyPairTable[item]);
}
return output.join(":");
};
const decrypt = (data, key) => {
const sourceMapSplit = crypto_sourceMap.split("");
const keyB64 = btoa(encodeURIComponent(key));
const keySplit = keyB64.split("");
var keyPairTable = generateKeyPair(keyB64);
const dataSplit = data.split(":");
var output = [];
for (item of dataSplit) {
output.push(getKeyByValue(keyPairTable, item));
}
var outputJoined = output.join("");
return decodeURIComponent(atob(outputJoined));
};
encrypt(
"abcdefghijklmnopqrstuvwxyzABCEFGHIJKLMNOPQRSTUVWXYZ1234567890-_.!~*'()%",
"hello"
);
function getKeyByValue(object, value) {
return Object.keys(object).find((key) => object[key] === value);
}
function generateKeyPair(key) {
var keyPairTable = {};
var keySplit = key.split("");
var letterNumberUsage = {};
var sourceMapSplit = crypto_sourceMap.split("");
for (item in sourceMapSplit) {
var lNU = letterNumberUsage[keySplit[item]] + 1;
var itemDivKey = item / keySplit.length;
var keystringNumber = Math.floor(
(item / keySplit.length - Math.floor(item / keySplit.length)) *
keySplit.length
);
if (letterNumberUsage[keySplit[keystringNumber]] == undefined) {
letterNumberUsage[keySplit[keystringNumber]] = 0;
}
keyPairTable[sourceMapSplit[item]] = `${keySplit[keystringNumber]}-${
letterNumberUsage[keySplit[keystringNumber]]
}`;
letterNumberUsage[keySplit[keystringNumber]] += 1;
}
return keyPairTable;
}