diff --git a/hutool-crypto/src/main/java/org/dromara/hutool/crypto/asymmetric/SM2.java b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/asymmetric/SM2.java
index e9af0d279..7dc56f818 100644
--- a/hutool-crypto/src/main/java/org/dromara/hutool/crypto/asymmetric/SM2.java
+++ b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/asymmetric/SM2.java
@@ -41,6 +41,7 @@ import org.dromara.hutool.crypto.bc.SmUtil;
 import java.math.BigInteger;
 import java.security.PrivateKey;
 import java.security.PublicKey;
+import java.security.SecureRandom;
 
 /**
  * 国密SM2非对称算法实现，基于BC库<br>
@@ -71,6 +72,10 @@ public class SM2 extends AbstractAsymmetricCrypto<SM2> {
 
 	private ECPrivateKeyParameters privateKeyParams;
 	private ECPublicKeyParameters publicKeyParams;
+	/**
+	 * 自定义随机数
+	 */
+	private SecureRandom random;
 
 	private DSAEncoding encoding = StandardDSAEncoding.INSTANCE;
 	private Digest digest = new SM3Digest();
@@ -238,7 +243,7 @@ public class SM2 extends AbstractAsymmetricCrypto<SM2> {
 		if (KeyType.PublicKey != keyType) {
 			throw new IllegalArgumentException("Encrypt is only support by public key");
 		}
-		return encrypt(data, new ParametersWithRandom(getCipherParameters(keyType)));
+		return encrypt(data, new ParametersWithRandom(getCipherParameters(keyType), this.random));
 	}
 
 	/**
@@ -366,7 +371,7 @@ public class SM2 extends AbstractAsymmetricCrypto<SM2> {
 		lock.lock();
 		final SM2Signer signer = getSigner();
 		try {
-			CipherParameters param = new ParametersWithRandom(getCipherParameters(KeyType.PrivateKey));
+			CipherParameters param = new ParametersWithRandom(getCipherParameters(KeyType.PrivateKey), this.random);
 			if (id != null) {
 				param = new ParametersWithID(param, id);
 			}
@@ -483,6 +488,17 @@ public class SM2 extends AbstractAsymmetricCrypto<SM2> {
 		return this;
 	}
 
+	/**
+	 * 设置随机数生成器，可自定义随机数种子
+	 *
+	 * @param random 随机数生成器，可自定义随机数种子
+	 * @return this
+	 */
+	public SM2 setRandom(final SecureRandom random) {
+		this.random = random;
+		return this;
+	}
+
 	/**
 	 * 设置DSA signatures的编码为PlainDSAEncoding
 	 *
diff --git a/hutool-crypto/src/main/java/org/dromara/hutool/crypto/bc/BCCipher.java b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/bc/BCCipher.java
index 11403bcdb..675caf057 100644
--- a/hutool-crypto/src/main/java/org/dromara/hutool/crypto/bc/BCCipher.java
+++ b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/bc/BCCipher.java
@@ -224,7 +224,7 @@ public class BCCipher implements Cipher, Wrapper<Object> {
 		/**
 		 * 算法的参数
 		 */
-		private final CipherParameters parameters;
+		protected final CipherParameters parameters;
 
 		/**
 		 * 构造