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Merged
SynthLuvr merged 1 commit into from
Jun 14, 2025
Merged

Display meaningful message when signature is incorrect #2

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15 changes: 13 additions & 2 deletions src/encryption.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ import { handle } from "./errors.js";
import { getLucid, WalletMaker } from "./wallet.js";
import { Err, isProblem, mayFail, mayFailAsync, Ok, Result } from "ts-handling";
import { type } from "arktype";
import { Data, toText } from "@lucid-evolution/lucid";
import { Data, Record, toText } from "@lucid-evolution/lucid";
import { decrypt as eccryptoDecrypt } from "@vinarmani/eccrypto-js";
import { createHash } from "crypto";
import { Parser } from "./input.js";
Expand Down Expand Up @@ -80,9 +80,20 @@ const decryptMessage = async (
eccryptoDecrypt(Buffer.from(privateKey, "hex"), encrypted),
)
).unwrap();
if (isProblem(decrypted)) return Err(decrypted.error);
if (isProblem(decrypted)) return handleDecryptedError(decrypted.error);

return Ok(decrypted.toString());
};

const handleDecryptedError = (error: string) => {
const errorMessages: Record<string, string> = {
"Bad MAC":
"Decryption error: The wallet provided does not match the valid wallet to decrypt.",
"Bad private key":
"Decryption failed: The private key is either invalid or does not belong to the intended wallet.",
};
const userFriendlyMessage = errorMessages[error] || error;
return Err(userFriendlyMessage);
};

export default decrypt;
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