.gitignore

@@ -4,4 +4,5 @@ __pycache__
 .vscode
 *.class
 /out/
+/.gradle/
 /.idea/

build.gradle

@@ -0,0 +1,106 @@
+plugins {
+    id "java"
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
+
+/** 源码在 src/ */
+sourceSets {
+    main { java { srcDirs = ["src"] } }
+}
+
+/** 统一编译编码 */
+tasks.withType(JavaCompile).configureEach { t ->
+    t.options.encoding = "UTF-8"
+    t.sourceCompatibility = "1.5"
+    t.targetCompatibility = "1.5"
+    def jcHome = System.getenv("JC_HOME")
+    if (!jcHome) throw new GradleException("缺少 JC_HOME")
+    t.options.bootstrapClasspath = files("${jcHome}/lib/api_classic.jar")
+    t.options.compilerArgs += ["-g:none", "-Xlint:none", "-XDignore.symbol.file"]
+}
+
+
+ext.JC_HOME = System.getenv('JC_HOME')
+
+
+/** 仅编译期提供 JavaCard API（不打包） */
+dependencies {
+    compileOnly files("${System.getenv("JC_HOME")}/lib/api_classic.jar")
+}
+
+/** ===== 用本地 JCDK converter 生成 CAP  ===== */
+def pkgName     = "com.zuc.zuc256"                         // ← 改成你的包名
+def appletClass = "${pkgName}.MyApplet"                    // ← 改成你的 Applet 全类名
+def packageAID  = "0xA0:0x00:0x00:0x03:0x33:0x01:0x01"     // ← 改成你的包 AID
+def appletAID   = "0xA0:0x00:0x00:0x03:0x33:0x01:0x01:0x01"// ← 改成你的实例 AID
+def ver         = "1.0"
+tasks.register("buildCap") {
+    group = "build"
+    description = "Generate CAP via JCDK converter.bat"
+    dependsOn("classes")
+
+    doLast {
+        // 仅在执行阶段读取 JC_HOME，避免配置期找不到属性
+        def jcHome = project.JC_HOME ?: System.getenv("JC_HOME")
+        if (!jcHome) {
+            throw new GradleException("未找到 JC_HOME（请设置环境变量或在 build.gradle 里 ext.JC_HOME=...）")
+        }
+
+        file("$buildDir/javacard").mkdirs()
+        def logFile = file("$buildDir/javacard/converter.log")
+
+        // 必要文件检查
+        def apiJar = new File(jcHome, "lib/api_classic.jar")
+        if (!apiJar.exists()) throw new GradleException("JC_HOME 无效：缺少 ${apiJar}")
+
+        def batFile = new File(jcHome, "bin/converter.bat")
+        if (!batFile.exists()) throw new GradleException("未找到 converter.bat：${batFile}")
+
+        // 确认 .class 存在
+        def cls = file("$buildDir/classes/java/main/${pkgName.replace('.','/')}/MyApplet.class")
+        if (!cls.exists()) throw new GradleException("未找到已编译类：${cls}")
+
+
+        println ">>> Running converter.bat:"
+        // 把整条命令拼成一个字符串，并对含空格的路径加引号
+        def convCmd = new StringBuilder()
+        convCmd << "\"${batFile.absolutePath}\""
+        convCmd << " -verbose"
+        convCmd << " -classdir \""   << file("$buildDir/classes/java/main").absolutePath             << "\""
+        convCmd << " -exportpath \"" << new File(jcHome, "api_export_files").absolutePath            << "\""
+        convCmd << " -applet "       << appletAID << " " << appletClass
+        convCmd << " -out CAP"
+        convCmd << " -d \""          << file("$buildDir/javacard").absolutePath                      << "\""
+        convCmd << " "               << pkgName << " " << packageAID << " " << ver
+
+        println convCmd.toString()
+
+        def outBytes = new ByteArrayOutputStream()
+        def result = project.exec {
+            // 注意：对 cmd.exe，命令必须作为“一个”字符串放在 /c 后面
+            commandLine "cmd", "/c", convCmd.toString()
+            ignoreExitValue = true
+            standardOutput = new org.apache.tools.ant.util.TeeOutputStream(outBytes, new FileOutputStream(logFile))
+            errorOutput    = standardOutput
+        }
+
+
+        // Windows 常见是 GBK，便于读中文
+        def out = outBytes.toString("GBK")
+        println(out)
+        println ">>> Converter log: ${logFile.absolutePath}"
+
+        if (result.exitValue != 0) {
+            println "---- converter.log tail ----"
+            println logFile.readLines("GBK").takeRight(80).join(System.lineSeparator())
+            throw new GradleException("converter 退出码：${result.exitValue}")
+        } else {
+            println "CAP 生成成功，目录：${file("$buildDir/javacard").absolutePath}"
+        }
+    }
+}
+

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.4-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+org.gradle.jvmargs=-Dfile.encoding=UTF-8
+org.gradle.console=plain

gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright ? 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions ?$var?, ?${var}?, ?${var:-default}?, ?${var+SET}?,
+#           ?${var#prefix}?, ?${var%suffix}?, and ?$( cmd )?;
+#         * compound commands having a testable exit status, especially ?case?;
+#         * various built-in commands including ?command?, ?set?, and ?ulimit?.
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = "se-algo"

src/com/zuc/zuc256/MyApplet.java

@@ -0,0 +1,29 @@
+package com.zuc.zuc256;
+
+import javacard.framework.*;
+
+/**
+ * 最小 JavaCard Applet 示例
+ */
+public class MyApplet extends Applet {
+
+    // 构造函数：一般初始化状态
+    protected MyApplet() {
+        register(); // 必须调用，完成注册
+    }
+
+    // 安装方法：CAP 文件安装时调用
+    public static void install(byte[] bArray, short bOffset, byte bLength) {
+        new MyApplet();
+    }
+
+    // 处理 APDU 命令
+    @Override
+    public void process(APDU apdu) throws ISOException {
+        if (selectingApplet()) {
+            return; // 选择时无需处理数据
+        }
+        // 默认：所有指令不支持
+        ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
+    }
+}