android获取应用签名信息
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public void getSingInfo() {try {PackageInfo packageInfo = getPackageManager().getPackageInfo("com.example.yao", 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();System.out.println("pubKey:" + pubKey);System.out.println("signNumber:" + signNumber);} catch (CertificateException e) {e.printStackTrace();}}