diff --git a/src/main/resources/lib/InfosecCrypto_Java1_02_JDK14+.jar b/src/main/resources/lib/InfosecCrypto_Java1_02_JDK14+.jar
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diff --git a/src/main/resources/lib/commons-logging-1.2.jar b/src/main/resources/lib/commons-logging-1.2.jar
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diff --git a/src/main/resources/lib/hsm-software-share-1.0.5.jar b/src/main/resources/lib/hsm-software-share-1.0.5.jar
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diff --git a/src/main/resources/lib/icbc-api-sdk-cop-io.jar b/src/main/resources/lib/icbc-api-sdk-cop-io.jar
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diff --git a/src/main/resources/lib/icbc-api-sdk-cop.jar b/src/main/resources/lib/icbc-api-sdk-cop.jar
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diff --git a/src/main/resources/lib/icbc-ca.jar b/src/main/resources/lib/icbc-ca.jar
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diff --git a/src/main/resources/lib/readme.md b/src/main/resources/lib/readme.md
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+### jar包说明
+commons-logging-1.2.jar----------------与日志记录相关
+icbc-api-sdk-cop.jar-------------------sdk基础jar包
+icbc-api-sdk-cop-io.jar----------------sdk各接口输入输出
+icbc-ca.jar----------------------------SHA1&SHA256签名工具包
+InfosecCrypto_Java1_02_JDK14+.jar------SHA1&SHA256签名工具包依赖
+
+### jar包使用说明
+1.支持java版本1.5及以上
+2.icbc-api-sdk-cop.jar、icbc-api-sdk-cop-io.jar为必须jar包
+3.icbc-ca.jar、InfosecCrypto_Java1_02_JDK14+.jar工具包升级后兼容SHA256和SHA1算法。
+
+### 版本升级
+版本升级说明请参考update-info.md
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diff --git a/src/main/resources/lib/update-info.md b/src/main/resources/lib/update-info.md
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+## 20201113
+1. 升级SHA256签名工具包icbc-ca.jar、InfosecCrypto_Java1_02_JDK14+.jar
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