crypto framework change ECC param

Signed-off-by: Nfuzikun <fuzikun@huawei.com>

zh-cn/release-notes/changelogs/OpenHarmony_4.0.3.2/changelog-security.md

@@ -56,6 +56,32 @@ function genGcmParamsSpec() {
   let gcmParamsSpec = {iv : ivBlob, aad : aadBlob, authTag : tagBlob, algName : "GcmParamsSpec"};
   return gcmParamsSpec;
 }
- ```   
+ ```
 详细查看API参考中ParamsSpec对应的接口适配指南：
-[加解密算法库框架-ParamsSpec-API参考](../../../application-dev/reference/apis/js-apis-cryptoFramework.md#paramsspec)
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+[加解密算法库框架-ParamsSpec-API参考](../../../application-dev/reference/apis/js-apis-cryptoFramework.md#paramsspec)
+
+## cl.security.2 ECC密码算法的参数名从ECC512变更为ECC521
+
+**变更影响**
+
+影响已发布的JS接口，接口行为发生变更。
+应用需要进行适配，才可以在新版本SDK环境获取正确结果。
+
+**关键的接口/组件变更**
+发布的JS接口不变， 传入接口的参数发生变化，由ECC512变化为ECC521，具体可见[加解密算法库框架-ECC密码算法参数参考](../../../application-dev/security/cryptoFramework-overview.md#密钥生成规格)，涉及的接口有：
+
+cryptoFramework.createAsyKeyGenerator
+
+cryptoFramework.createSign
+
+cryptoFramework.createVerify
+
+cryptoFramework.createKeyAgreement
+
+**适配指导**
+
+```js
+import cryptoFramework from "@ohos.security.cryptoFramework"
+
+let asyKeyGenerator = cryptoFramework.createAsyKeyGenerator("ECC521");
+```
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