Java String Descrypt decrypt2(byte[] arg0, int arg1, String arg2, byte arg3)

Description

decrypt

License

Open Source License

Declaration

static int decrypt2(byte[] arg0, int arg1, String arg2, byte arg3) throws Exception 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    static int[] p;

    static int decrypt2(byte[] arg0, int arg1, String arg2, byte arg3) throws Exception {
        int var17 = 0;

        try {/*from   w  w w  .  j  a  va  2 s .  co m*/
            int var4 = arg1;
            int var5 = arg2.length();
            int var6 = 0;

            int var10000;
            while (true) {
                if (var5 > var6) {
                    char var8 = arg2.charAt(var6);
                    var10000 = var8;
                    if (var17 != 0) {
                        break;
                    }

                    int var7;
                    label128: {
                        if (var8 >= 0 && ~p.length < ~var8) {
                            var7 = p[var8];
                            if (var17 == 0) {
                                break label128;
                            }
                        }

                        var7 = -1;
                    }

                    int var10;
                    label140: {
                        if (var5 <= 1 + var6) {
                            var10 = -1;
                            if (var17 == 0) {
                                break label140;
                            }
                        }

                        int var11;
                        label117: {
                            char var12 = arg2.charAt(var6 + 1);
                            if (0 <= var12 && var12 < p.length) {
                                var11 = p[var12];
                                if (var17 == 0) {
                                    break label117;
                                }
                            }

                            var11 = -1;
                        }

                        var10 = var11;
                    }

                    int var19;
                    label141: {
                        if (~(2 + var6) <= ~var5) {
                            var19 = -1;
                            if (var17 == 0) {
                                break label141;
                            }
                        }

                        int var13;
                        label106: {
                            char var14 = arg2.charAt(2 + var6);
                            if (0 <= var14 && p.length > var14) {
                                var13 = p[var14];
                                if (var17 == 0) {
                                    break label106;
                                }
                            }

                            var13 = -1;
                        }

                        var19 = var13;
                    }

                    int var20;
                    label142: {
                        if (3 + var6 >= var5) {
                            var20 = -1;
                            if (var17 == 0) {
                                break label142;
                            }
                        }

                        int var15;
                        label95: {
                            char var16 = arg2.charAt(3 + var6);
                            if (0 <= var16 && ~var16 > ~p.length) {
                                var15 = p[var16];
                                if (var17 == 0) {
                                    break label95;
                                }
                            }

                            var15 = -1;
                        }

                        var20 = var15;
                    }

                    arg0[arg1++] = (byte) (var7 << 2 | var10 >>> 4);
                    if (var19 != -1 || var17 != 0) {
                        arg0[arg1++] = (byte) (var19 >>> 2 | 240 & var10 << 4);
                        if (~var20 != 0) {
                            arg0[arg1++] = (byte) (var20 | var19 << 6 & 192);
                            var6 += 4;
                            if (var17 == 0) {
                                continue;
                            }
                        }
                    }
                }

                var10000 = arg3;
                break;
            }

            return var10000 > -45 ? 45 : arg1 + -var4;
        } catch (RuntimeException var18) {
            throw new Exception("");

        }
    }
}

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