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added reverse process with backward compatibility (issue:reversing the process #10) #14

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added reverse process with backward compatibility (issue:reversing the process #10) #14

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12 changes: 6 additions & 6 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -10,19 +10,19 @@ exports.generate = (sizeInBits) => {
return keypair({ bits: sizeInBits })
}

exports.encrypt = (payloadString, publicKey) => {
if (typeof payloadString !== 'string' || typeof publicKey !== 'string') throw Error("Error encrypting. Payload and Public Key should be in text format. Example usage: ` let encryptedText = QuickEncrypt.encrypt('Some secret text here!', 'the public RSA key in text format here'); ` ")
exports.encrypt = (payloadString, key, usePublicKey = true) => {
if (typeof payloadString !== 'string' || typeof key !== 'string') throw Error("Error encrypting. Payload and Public/Private Key should be in text format. Example usage: ` let encryptedText = QuickEncrypt.encrypt('Some secret text here!', 'the public RSA key in text format here'); ` ")
try {
return crypto.publicEncrypt(publicKey, Buffer.from(payloadString, 'utf8')).toString('hex')
return usePublicKey ? crypto.publicEncrypt(key, Buffer.from(payloadString, 'utf8')).toString('hex') : crypto.privateEncrypt(key, Buffer.from(payloadString, 'utf8'))
} catch (error) {
throw UnknownError('encryption')
}
}

exports.decrypt = (encryptedString, privateKey) => {
if (typeof encryptedString !== 'string' || typeof privateKey !== 'string') throw Error("Error decrypting. Decrypted Text and Private Key should be in text format. Example usage: ` let decryptedText = QuickEncrypt.decrypt('asddd213d19jenacanscasn', 'the private RSA key in text format here'); ` ")
exports.decrypt = (encryptedString, key,usePrivateKey=true) => {
if (typeof encryptedString !== 'string' || typeof key !== 'string') throw Error("Error decrypting. Decrypted Text and Public/Private Key should be in text format. Example usage: ` let decryptedText = QuickEncrypt.decrypt('asddd213d19jenacanscasn', 'the private RSA key in text format here'); ` ")
try {
return crypto.privateDecrypt({ key: privateKey }, Buffer.from(encryptedString, 'hex')).toString()
return usePrivateKey ? crypto.privateDecrypt({ key }, Buffer.from(encryptedString, 'hex')).toString() : crypto.publicDecrypt({ key }, Buffer.from(encryptedString, 'hex')).toString()
} catch (error) {
throw UnknownError('decryption')
}
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