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arena-file

v0.0.16

Published

Arena image file libs

Readme

Arena 文件读写组件

Arena 文件结构标准

| 字节流大小(字节) | 含义 | 写入方法 | | ------------------ | ------------------------------------------------------------ | ------------ | | 5 | ARENA 字符串 | utf8-bit | | 1 | version 文件版本 | 8Int | | 4 | meta内容长度 | U32IntBE | | 4 | flags 文件功能 | U32IntBE | | 4 | Arena 文件类型PROJ: 工程文件;PLUG: 插件文件;APT-:主题文件 | utf8-bit | | 6 | sem version 资源内容版本 | U16IntBE x 3 | | 1 | 加密方法长度 | 8Int | | 4 | 数字证书长度 | U32IntBE | | 4 | 签名结果长度 | U32IntBE | | 4 | 资源内容长度 | U32IntBE | | 4 | cfg_length 配置长度 | U32IntBE | | 20 | cfg_checksum 配置校验哈希 | bit-stream | | n | cfg内容 | utf8-bit | | n | 资源内容 | bit-stream | | n | 加密方法 | utf8-bit | | n | 数字证书内容 | bit-stream | | n | 签名结果 | bit-stream | | n | DRM-ID | utf8-bit |

Flags 对应含义

| 字节位 | 含义 | 数值列表 | 实现情况 | | ------ | -------------------------- | ------------- | -------- | | 0 | 文件meta是否被压缩 | 是否 | ❌ | | 1 | 哈希方法 | md5sha1 | ✅ | | 2 | cfg 是否被压缩 | 是否 | ✅ | | 3 | DRM 保护 | 是否 | ❌ | | 4 | 密码加密 | 是否 | ❌ | | 5 | 内容被签名保护 | 是否 | ❌ | | 6 | 需要使用根证书解开数字证书 | 是否 | ❌ | | 7 | 验证时需要使用者提供根证书 | 是否 | ❌ |

Scheduled Changes

cfg_checksum: 长度从 20 增加到 32