Android调用大宝CA版本JCE完成SM2、SM3、SM4国密算法和国密数字证书的示例代码，1.1.0版本

package com.doubleca.android.sample.gmjce; import com.doubleca.b146.c16.util.encoders.Base64; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.math.BigInteger; import java.security.InvalidKeyException; import java.security.Key; import java.security.KeyFactory; import java.security.KeyPair; import java.security.KeyPairGenerator; import java.security.KeyStore; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.security.PrivateKey; import java.security.PublicKey; import java.security.SecureRandom; import java.security.SignatureException; import java.security.cert.Certificate; import java.security.cert.CertificateFactory; import java.security.cert.X509Certificate; import java.security.spec.InvalidKeySpecException; import java.security.spec.PKCS8EncodedKeySpec; import java.security.spec.X509EncodedKeySpec; import java.util.Enumeration; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import doubleca.security.provider.DoubleCA; import doubleca.security.provider.jdk7.sm4.SM4KeySpec; public class GmTest { private static final String SIGNATURE_KEY_ALGORITHM = "SM2"; private static final String SIGNATURE_ALGORITHM = "SM3withSM2"; private static final int SIGNATURE_KEY_SIZE = 256; private static final String DIGEST_ALGORITHM = "SM3"; private static final String CIPHER_SM4_KEY_ALGORITHM = "SM4"; // private static final String CIPHER_SM4_ALGORITHM = "SM4/ECB/PKCS5Padding"; private static final String CIPHER_SM4_ALGORITHM = "SM4/CBC/PKCS5Padding"; // private static final String CIPHER_SM4_ALGORITHM = "SM4/ECB/NOPadding"; // private static final String CIPHER_SM4_ALGORITHM = "SM4/CBC/NOPadding"; private static final String CIPHER_SM2_ALGORITHM = "SM2/NONE/NOPadding"; public static SecretKey TestSM4Cipher() { try { String plainText1 = "软件（库）授权与防复制、防盗版，全平台支持："; String plainText2 = "https://www.PPLIC.com "; byte[] plain1 = plainText1.getBytes(); byte[] plain2 = plainText2.getBytes(); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(CIPHER_SM4_KEY_ALGORITHM, DoubleCA.PROVIDER_NAME); SM4KeySpec keySpec = new SM4KeySpec("1234567812345678".getBytes("utf-8")); IvParameterSpec iv = new IvParameterSpec("1234567812345678".getBytes()); SecretKey key = keyFactory.generateSecret(keySpec); BigInteger keyBuffer = new BigInteger(1, key.getEncoded()); System.out.println("SM4 Key :" + keyBuffer.toString(16).toUpperCase()); // KeyGenerator kgen = KeyGenerator.getInstance("OID.1.2.156.10197.1.104"); // KeyGenerator kgen = KeyGenerator.getInstance("1.2.156.10197.1.104"); // KeyGenerator kgen = KeyGenerator.getInstance("SMS4"); KeyGenerator kgen = KeyGenerator.getInstance(CIPHER_SM4_KEY_ALGORITHM); kgen.init(128, new SecureRandom("12345678".getBytes())); SecretKey secretKey = kgen.generateKey(); byte[] enCodeFormat = secretKey.getEncoded(); SecretKeySpec sm4keySpec = new SecretKeySpec(enCodeFormat, CIPHER_SM4_KEY_ALGORITHM); keyBuffer = new BigInteger(1, sm4keySpec.getEncoded()); System.out.println("SM4KeySpec :" + keyBuffer.toString(16).toUpperCase()); Cipher cipher = Cipher.getInstance(CIPHER_SM4_ALGORITHM);// 创建密码器 // cipher.init(Cipher.ENCRYPT_MODE, sm4keySpec);// 初始化 cipher.init(Cipher.ENCRYPT_MODE, sm4keySpec, iv);// 初始化 byte[] sm4ResultBuffer = new byte[cipher.getOutputSize(plain1.length + plain2.length)]; int bufferLen = cipher.update(plain1, 0, plain1.length, sm4ResultBuffer, 0); bufferLen += cipher.update(plain2, 0, plain2.length, sm4ResultBuffer, bufferLen); bufferLen += cipher.doFinal(sm4ResultBuffer, bufferLen); byte[] result = new byte[bufferLen]; System.arraycopy(sm4ResultBuffer, 0, result, 0, sm4ResultBuffer.length); BigInteger buffer = new BigInteger(1, result); System.out.println("原文1：" + plainText1); System.out.println("原文2：" + plainText2); System.out.println("密文：" + new String(Base64.encode(result))); // cipher.init(Cipher.DECRYPT_MODE, sm4keySpec);// 初始化 cipher.init(Cipher.DECRYPT_MODE, sm4keySpec, iv);// 初始化 sm4ResultBuffer = new byte[cipher.getOutputSize(result.length)]; bufferLen = cipher.update(result, 0, result.length / 2, sm4ResultBuffer, 0); bufferLen += cipher.update(result, result.length / 2, result.length - (result.length / 2), sm4ResultBuffer, bufferLen); bufferLen += cipher.doFinal(sm4ResultBuffer, bufferLen); result = new byte[bufferLen]; System.arraycopy(sm4ResultBuffer, 0, result, 0, result.length); System.out.println("原文：" + new String(result)); return key; } catch (Exception ex) { ex.printStackTrace(); return null; } } public static boolean TestSM3Digest() { try { MessageDigest md = MessageDigest.getInstance(DIGEST_ALGORITHM); byte[] result; md.update("大宝CA 国密SSL（v1.1）算法库：https://www.DoubleCA.com ".getBytes()); // byte[] result = md.digest("1234512345".getBytes()); result = md.digest(); System.out.println(md.getAlgorithm() + " MessageDigest : " + new BigInteger(1, result).toString(16).toUpperCase()); return true; } catch (Exception ex) { ex.printStackTrace(); return false; } } public static boolean TestSM2Signature(KeyPair key) throws NoSuchAlgorithmException, SignatureException, InvalidKeyException { String content = "大宝CA 国密SSL（v1.1）Tomcat：https://www.DoubleCA.com "; System.out.println("原文：" + content); java.security.Signature signature = java.security.Signature.getInstance(SIGNATURE_ALGORITHM); signature.initSign(key.getPrivate()); signature.update(content.getBytes()); byte[] signValue = signature.sign(); System.out.println("签名值：" + new String(Base64.encode(signValue))); signature.initVerify(key.getPublic()); signature.update(content.getBytes()); boolean result = signature.verify(signValue); System.out.println("签名验证结果 ：" + result); return result; } public static boolean TestSM2AsymmetricCipher(KeyPair key) { try { Cipher cipher = Cipher.getInstance(CIPHER_SM2_ALGORITHM); cipher.init(Cipher.ENCRYPT_MODE, key.getPublic()); String plainText = "软件（库）授权与防复制：https://www.PPLIC.com "; System.out.println("原文：" + plainText); cipher.update(plainText.getBytes()); byte[] cipherByte = cipher.doFinal(); System.out.println("密文：" + new String(Base64.encode(cipherByte))); cipher.init(Cipher.DECRYPT_MODE, key.getPrivate()); byte[] plainByte = cipher.doFinal(cipherByte); System.out.println("原文：" + new String(plainByte)); return true; } catch (Exception ex) { ex.printStackTrace(); return false;