diff --git a/utils/crypto.uts b/utils/crypto.uts
new file mode 100644
index 0000000..e8b6018
--- /dev/null
+++ b/utils/crypto.uts
@@ -0,0 +1,82 @@
+import { createRsaPair, base64Decode, base64Encode, } from "@/uni_modules/laoqianjunzi-crypto";
+
+// #ifdef H5
+type CryptoRsaPair = {
+	publicKey : string;
+	privateKey : string;
+}
+// #endif
+// #ifdef APP-ANDROID
+	import { CryptoRsaPair } from "@/uni_modules/laoqianjunzi-crypto";
+// #endif
+ 
+export class Crypto {
+	/**
+	 * 随机生成32位的字符串
+	 * @returns {string}
+	 */
+	static generateRandomString() : string {
+		const chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+		let result = ""
+		for (let i = 0; i < 32; i++) {
+			result += chars.charAt(
+				Math.floor(
+					Math.random() * chars.length
+				)
+			)
+		}
+		return result;
+	}
+
+	private static readonly rsaBitsText = ref('2048')
+	static currentRsaBits() : number {
+		const parsed = parseInt(Crypto.rsaBitsText.value)
+		if (parsed == 1024 || parsed == 2048 || parsed == 3072 || parsed == 4096) {
+			return parsed
+		}
+		return 2048
+	}
+	/**
+	 * 随机生成aes 密钥
+	 * @returns {string}
+	 */
+	static generateAesKey() : CryptoRsaPair {
+		return createRsaPair(Crypto.currentRsaBits());
+	}
+
+	/**
+	* 加密base64
+	* @returns {string}
+	*/
+	static encryptBase64(str : CryptoRsaPair) : string {
+		return base64Encode(str.privateKey + str.publicKey);
+	}
+
+	/**
+	* 解密base64
+	*/
+	static decryptBase64(str : string) : string {
+		return base64Decode(str);
+	}
+
+	/**
+	* 使用密钥对数据进行加密
+	* @param message
+	* @param aesKey
+	* @returns {string}
+	*/
+	static encryptWithAes() : string {
+		return '';
+	}
+
+	/**
+	* 使用密钥对数据进行解密
+	* @param message
+	* @param aesKey
+	* @returns {string}
+	*/
+	static decryptWithAes() : string {
+		return '';
+	}
+
+}
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