hanfuit
645b64fe21
服务端（Go）： - GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面 - GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新 - 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新） - 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍 - 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0） - 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算 启动器（Python/JS）： - 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭 - GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐） - 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错
114 lines
2.6 KiB
Go
114 lines
2.6 KiB
Go
package pvf
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import (
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"encoding/binary"
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"unicode/utf16"
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)
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func decryptGuard(buf []byte) {
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if len(buf) < 28 {
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return
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}
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for idx := 24; idx < 28; idx++ {
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buf[idx] ^= 0x55
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}
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}
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func decrypt(key string, buf []byte) {
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decryptCore(key, buf, 0x269EC3)
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}
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func decrypt2(key string, buf []byte) {
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decryptCore(key, buf, 0x269EC9)
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}
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func decryptProtected(key string, buf []byte) {
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decryptProtectedCore(key, buf, 0x269EC3)
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}
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func decryptPString(key string, buf []byte) {
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decryptProtectedCore(key, buf, 0x269EC9)
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}
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func decryptCore(key string, buf []byte, magic uint32) {
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if key == "" || len(buf) == 0 {
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return
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}
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k := []byte(key)
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if len(k) < 4 {
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return
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}
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size := len(buf)
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tail := size
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seed := uint32(0x76826701)*uint32(k[0]) +
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0x1C1*(uint32(k[3])+0x1C1*(uint32(k[2])+0x1C1*uint32(k[1])))
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if size >= 4 {
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quadCount := size >> 2
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tail = size - (quadCount << 2)
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for idx := 0; idx < quadCount; idx++ {
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t1 := 0x343FD*seed + magic
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seed = 0x343FD*t1 + magic
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xorKey := ((seed >> 16) & 0xFFFF) + (t1 & 0xFFFF0000)
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off := idx << 2
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value := binary.LittleEndian.Uint32(buf[off:off+4]) ^ xorKey
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binary.LittleEndian.PutUint32(buf[off:off+4], value)
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}
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}
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if tail > 0 {
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t1 := 0x343FD*seed + magic
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t2 := 0x343FD*t1 + magic
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finalKey := (t1 & 0xFFFF0000) + ((t2 >> 16) & 0xFFFF)
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var keyBytes [4]byte
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binary.LittleEndian.PutUint32(keyBytes[:], finalKey)
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start := size - tail
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for idx := 0; idx < tail; idx++ {
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buf[start+idx] ^= keyBytes[idx]
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}
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}
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}
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// decryptProtectedCore 复刻新版 DNF PVF 的 UTF-16 seed 密钥流。
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// 它只用于 protected_nkpi 归档的 header、HASH、GRPI、字符串池和 body chunk 解密。
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func decryptProtectedCore(key string, buf []byte, magic uint32) {
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if key == "" || len(buf) == 0 {
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return
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}
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words := utf16.Encode([]rune(key))
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if len(words) < 4 {
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return
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}
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size := len(buf)
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tail := size
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seed := uint32(0x339E9711)*uint32(words[0]) +
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0x393*(uint32(words[3])+0x393*(uint32(words[2])+0x393*uint32(words[1])))
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if size >= 4 {
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quadCount := size >> 2
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tail = size - (quadCount << 2)
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for idx := 0; idx < quadCount; idx++ {
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t1 := 0x343FD*seed + magic
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seed = 0x343FD*t1 + magic
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xorKey := (t1 & 0xFFFF0000) + (seed >> 16)
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off := idx << 2
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value := binary.LittleEndian.Uint32(buf[off:off+4]) ^ xorKey
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binary.LittleEndian.PutUint32(buf[off:off+4], value)
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}
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}
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if tail > 0 {
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t1 := 0x343FD*seed + magic
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t2 := 0x343FD*t1 + magic
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finalKey := (t1 & 0xFFFF0000) + (t2 >> 16)
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var keyBytes [4]byte
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binary.LittleEndian.PutUint32(keyBytes[:], finalKey)
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start := size - tail
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for idx := 0; idx < tail; idx++ {
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buf[start+idx] ^= keyBytes[idx]
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}
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}
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}
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