Android獲取應用的簽名信息

public void getSingInfo() {
    try {
        PackageInfo packageInfo = getPackageManager().getPackageInfo("wabao.et.master", PackageManager.GET_SIGNATURES);
        Signature[] signs = packageInfo.signatures;
        Signature sign = signs[0];
        parseSignature(sign.toByteArray());
    } catch (Exception e) {
        e.printStackTrace();
    }
}

public void parseSignature(byte[] signature) {
    try {
        CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
        X509Certificate cert = (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream(signature));
        String pubKey = cert.getPublicKey().toString();
        String signNumber = cert.getSerialNumber().toString();
    } catch (CertificateException e) {
        e.printStackTrace();
    }
}

轉載地址：
https://my.oschina.net/888/blog/67586