Method toPrivateKey

java/lib/src/main/java/io/github/ccxt/base/Crypto.java:503–514

(Object secret)

    }

    private static BigInteger toPrivateKey(Object secret) {
        Object v = (secret);
        if (v instanceof BigInteger bi) return bi;
        if (v instanceof byte[] b) return new BigInteger(1, b);
        if (v instanceof String s) {
            String t = s.trim();
            if (t.startsWith("0x")) return new BigInteger(t.substring(2), 16);
            if (t.matches("^[0-9a-fA-F]+$")) return new BigInteger(t, 16);
            if (t.matches("^[0-9]+$")) return new BigInteger(t, 10);
        }
        throw new IllegalArgumentException("Unsupported secret type: " + (v == null ? "null" : v.getClass().getName()));
    }

    private static KeyPair ecKeyPairFromRaw(String curveStdName, byte[] privBytes) throws Exception {
        // var params = ECNamedCurveTable.getParameterSpec(curveStdName);