Class: OracleEbsAuthentication::Security

Inherits:
Object
  • Object
show all
Defined in:
lib/oracle_ebs_authentication/security.rb

Overview

The Java original source code was taken form code.google.com/p/jebusinessauth/source/browse/trunk/src/com/milci/ebusinesssuite/eBusinessSuiteSecurity.java

As original Java source is not documented then Ruby source code was done as similar as possible to Java code to avoid differences in functionality.

Defined Under Namespace

Classes: Bytes

Constant Summary collapse

J = 
2
K = 
4
L = 
[
    256, 0x2080100, 0x2080000, 0x42000100, 0x80000, 256, 0x40000000,
    0x2080000, 0x40080100, 0x80000,
    0x2000100, 0x40080100, 0x42000100, 0x42080000, 0x80100, 0x40000000,
    0x2000000, 0x40080000, 0x40080000, 0,
    0x40000100, 0x42080100, 0x42080100, 0x2000100, 0x42080000, 0x40000100, 0,
    0x42000000, 0x2080100, 0x2000000,
    0x42000000, 0x80100, 0x80000, 0x42000100, 256, 0x2000000, 0x40000000,
    0x2080000, 0x42000100, 0x40080100,
    0x2000100, 0x40000000, 0x42080000, 0x2080100, 0x40080100, 256, 0x2000000,
    0x42080000, 0x42080100, 0x80100,
    0x42000000, 0x42080100, 0x2080000, 0, 0x40080000, 0x42000000, 0x80100,
    0x2000100, 0x40000100, 0x80000,
    0, 0x40080000, 0x2080100, 0x40000100
]
M = 
2
N = 
[
    0x802001, 8321, 8321, 128, 0x802080, 0x800081, 0x800001, 8193, 0,
    0x802000,
    0x802000, 0x802081, 129, 0, 0x800080, 0x800001, 1, 8192, 0x800000,
    0x802001,
    128, 0x800000, 8193, 8320, 0x800081, 1, 8320, 0x800080, 8192, 0x802080,
    0x802081, 129, 0x800080, 0x800001, 0x802000, 0x802081, 129, 0, 0,
    0x802000,
    8320, 0x800080, 0x800081, 1, 0x802001, 8321, 8321, 128, 0x802081, 129,
    1, 8192, 0x800001, 8193, 0x802080, 0x800081, 8193, 8320, 0x800000,
    0x802001,
    128, 0x800000, 8192, 0x802080
]
O = 
1
P = 
[
    520, 0x8020200, 0, 0x8020008, 0x8000200, 0, 0x20208, 0x8000200, 0x20008,
    0x8000008,
    0x8000008, 0x20000, 0x8020208, 0x20008, 0x8020000, 520, 0x8000000, 8,
    0x8020200, 512,
    0x20200, 0x8020000, 0x8020008, 0x20208, 0x8000208, 0x20200, 0x20000,
    0x8000208, 8, 0x8020208,
    512, 0x8000000, 0x8020200, 0x8000000, 0x20008, 520, 0x20000, 0x8020200,
    0x8000200, 0,
    512, 0x20008, 0x8020208, 0x8000200, 0x8000008, 512, 0, 0x8020008,
    0x8000208, 0x20000,
    0x8000000, 0x8020208, 8, 0x20208, 0x20200, 0x8000008, 0x8020000,
    0x8000208, 520, 0x8020000,
    0x20208, 8, 0x8020008, 0x20200
]
Q = 
0x8f1bbcdc
R = 
[
    0x80108020, 0x80008000, 32768, 0x108020, 0x100000, 32, 0x80100020,
    0x80008020, 0x80000020, 0x80108020,
    0x80108000, 0x80000000, 0x80008000, 0x100000, 32, 0x80100020, 0x108000,
    0x100020, 0x80008020, 0,
    0x80000000, 32768, 0x108020, 0x80100000, 0x100020, 0x80000020, 0,
    0x108000, 32800, 0x80108000,
    0x80100000, 32800, 0, 0x108020, 0x80100020, 0x100000, 0x80008020,
    0x80100000, 0x80108000, 32768,
    0x80100000, 0x80008000, 32, 0x80108020, 0x108020, 32, 32768, 0x80000000,
    32800, 0x80108000,
    0x100000, 0x80000020, 0x100020, 0x80008020, 0x80000020, 0x100020,
    0x108000, 0, 0x80008000, 32800,
    0x80000000, 0x80100020, 0x80108020, 0x108000
]
S = 
[
    13, 16, 10, 23, 0, 4, 2, 27, 14, 5,
    20, 9, 22, 18, 11, 3, 25, 7, 15, 6,
    26, 19, 12, 1, 40, 51, 30, 36, 46, 54,
    29, 39, 50, 44, 32, 47, 43, 48, 38, 55,
    33, 52, 45, 41, 49, 35, 28, 31
]
T = 
[
    0x1010400, 0, 0x10000, 0x1010404, 0x1010004, 0x10404, 4, 0x10000, 1024,
    0x1010400,
    0x1010404, 1024, 0x1000404, 0x1010004, 0x1000000, 4, 1028, 0x1000400,
    0x1000400, 0x10400,
    0x10400, 0x1010000, 0x1010000, 0x1000404, 0x10004, 0x1000004, 0x1000004,
    0x10004, 0, 1028,
    0x10404, 0x1000000, 0x10000, 0x1010404, 4, 0x1010000, 0x1010400,
    0x1000000, 0x1000000, 1024,
    0x1010004, 0x10000, 0x10400, 0x1000004, 1024, 4, 0x1000404, 0x10404,
    0x1010404, 0x10004,
    0x1010000, 0x1000404, 0x1000004, 1028, 0x10404, 0x1010400, 1028,
    0x1000400, 0x1000400, 0,
    0x10004, 0x10400, 0, 0x1010004
]
U = 
8
V = 
[
    56, 48, 40, 32, 24, 16, 8, 0, 57, 49,
    41, 33, 25, 17, 9, 1, 58, 50, 42, 34,
    26, 18, 10, 2, 59, 51, 43, 35, 62, 54,
    46, 38, 30, 22, 14, 6, 61, 53, 45, 37,
    29, 21, 13, 5, 60, 52, 44, 36, 28, 20,
    12, 4, 27, 19, 11, 3
]
W = 
[
    0x800000, 0x400000, 0x200000, 0x100000, 0x80000, 0x40000, 0x20000,
    0x10000, 32768, 16384,
    8192, 4096, 2048, 1024, 512, 256, 128, 64, 32, 16,
    8, 4, 2, 1
]
X = 
0x6ed9eba1
Y = 
8
Z = 
100
Ba = 
32
Bb = 
[
    1, 2, 4, 6, 8, 10, 12, 14, 15, 17,
    19, 21, 23, 25, 27, 28
]
Bc = 
30
Bd = 
"ZG"
Be = 
false
Bf = 
0x5a827999
Bg = 
[
    0x10001040, 4096, 0x40000, 0x10041040, 0x10000000, 0x10001040, 64,
    0x10000000, 0x40040, 0x10040000,
    0x10041040, 0x41000, 0x10041000, 0x41040, 4096, 64, 0x10040000,
    0x10000040, 0x10001000, 4160,
    0x41000, 0x40040, 0x10040040, 0x10041000, 4160, 0, 0, 0x10040040,
    0x10000040, 0x10001000,
    0x41040, 0x40000, 0x41040, 0x40000, 0x10041000, 4096, 64, 0x10040040,
    4096, 0x41040,
    0x10001000, 64, 0x10000040, 0x10040000, 0x10040040, 0x10000000, 0x40000,
    0x10001040, 0, 0x10041040,
    0x40040, 0x10000040, 0x10040000, 0x10001000, 0x10001040, 0, 0x10041040,
    0x41000, 0x41000, 4160,
    4160, 0x40040, 0x10000000, 0x10041000
]
Bh = 
0xca62c1d6
Bi = 
[
    -128, 64, 32, 16, 8, 4, 2, 1
]
Bj = 
[
    0x200000, 0x4200002, 0x4000802, 0, 2048, 0x4000802, 0x200802, 0x4200800,
    0x4200802, 0x200000,
    0, 0x4000002, 2, 0x4000000, 0x4200002, 2050, 0x4000800, 0x200802,
    0x200002, 0x4000800,
    0x4000002, 0x4200000, 0x4200800, 0x200002, 0x4200000, 2048, 2050,
    0x4200802, 0x200800, 2,
    0x4000000, 0x200800, 0x4000000, 0x200800, 0x200000, 0x4000802, 0x4000802,
    0x4200002, 0x4200002, 2,
    0x200002, 0x4000000, 0x4000800, 0x200000, 0x4200800, 2050, 0x200802,
    0x4200800, 2050, 0x4000002,
    0x4200802, 0x4200000, 0x200800, 0, 2, 0x4200802, 0, 0x200802, 0x4200000,
    2048,
    0x4000002, 0x4000800, 2048, 0x200002
]
Bk = 
"ZG_ENCRYPT_FAILED_"
Bl = 
15
Bm = 
[
    0x20000010, 0x20400000, 16384, 0x20404010, 0x20400000, 16, 0x20404010,
    0x400000, 0x20004000, 0x404010,
    0x400000, 0x20000010, 0x400010, 0x20004000, 0x20000000, 16400, 0,
    0x400010, 0x20004010, 16384,
    0x404000, 0x20004010, 16, 0x20400010, 0x20400010, 0, 0x404010, 0x20404000,
    16400, 0x404000,
    0x20404000, 0x20000000, 0x20004000, 16, 0x20400010, 0x404000, 0x20404010,
    0x400000, 16400, 0x20000010,
    0x400000, 0x20004000, 0x20000000, 16400, 0x20000010, 0x20404010, 0x404000,
    0x20400000, 0x404010, 0x20404000,
    0, 0x20400010, 16, 16384, 0x20400000, 0x404010, 16384, 0x400010,
    0x20004010, 0,
    0x20404000, 0x20000000, 0x400010, 0x20004010
]

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Security

Returns a new instance of Security.



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# File 'lib/oracle_ebs_authentication/security.rb', line 50

def initialize
end

Instance Method Details

#a(abyte0, i1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 57

def a(abyte0, i1)
  ai = [nil]*16
  ai1 = [nil]*5
  u(ai1, nil)
  l1 = ai.length
  k1 = 0
  j2 = 0
  j1 = 0
  while j1 < (i1 & -4)
    ai[k1] = (abyte0[j2] | abyte0[j2 + 1] << 8 | abyte0[j2 + 2] << 16 |
        abyte0[j2 + 3] << 24) & 0xffffffff
    k1 +=1
    if (k1 == l1)
      u(ai1, ai)
      k1 = 0
    end
    j2 += 4
    j1 += 4
  end
  j1 = i1 - j1
  if (j1 == 1)
    ai[k1] = abyte0[j2] & 0xff | 0x8000
  elsif (j1 == 2)
    ai[k1] = (abyte0[j2] | abyte0[j2 + 1] << 8 | 0x800000) & 0xffffffff
  elsif (j1 == 3)
    ai[k1] = (abyte0[j2] | abyte0[j2 + 1] << 8 | abyte0[j2 + 2] << 16 | 0x80000000) & 0xffffffff
  else
    ai[k1] = 128
  end
  k1 += 1
  if (k1 >= l1 - 2)
    while (k1 < l1)
      ai[k1] = 0
      k1 += 1
    end
    u(ai1,ai)
    k1 = 0
  end
  while (k1 < l1 - 2)
    ai[k1] = 0
    k1 += 1
  end
  i2 = i1
  ai[k1] = i2 >> 29 & 7
  k1 += 1
  ai[k1] = (i2 << 3) & 0xffffffff
  u(ai1, ai)
  return ai1
end

#a_(ac) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 774

def a_(ac)
  # RSI: if we receive String then return the same value (as it should already be in UTF-8)
  return ac if ac.is_a? String
  abyte0 = null_bytes(ac.length * 3)
  i1 = 0
  flag = false
  for j1 in 0...ac.length
    c1 = ac[j1]
    if (c1 >= 0 && c1 <= 0177)
      abyte0[i1] = (c1 & 0x7f)
      i1 += 1
    elsif (c1 >= 0200 && c1 <= 0x07FF)
      abyte0[i1] = ( (c1 & 0x7c0) >> 6 | 0xc0)
      i1 += 1
      abyte0[i1] = (c1 & 0x3f | 0x80)
      i1 += 1
    elsif (c1 >= 0x0800 && c1 <= 0xFFFF)
      abyte0[i1] = ( (c1 & 0xf000) >> 12 | 0xe0)
      i1 += 1
      abyte0[i1] = ( (c1 & 0xfc0) >> 6 | 0x80)
      i1 += 1
      abyte0[i1] = (c1 & 0x3f | 0x80)
      i1 += 1
    end
  end
  abyte1 = null_bytes i1
  abyte1[0, i1] = abyte0[0, i1]
  abyte1
end

#b_(abyte0, abyte1, abyte2, i1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 804

def b_(abyte0, abyte1, abyte2, i1)
  if (abyte0 == nil)
    if (i1 > 0 && abyte1 != nil && abyte2 != nil)
      for j1 in 0...i1
        abyte2[j1] = abyte1[j1]
      end
      return
    end
  else
    if (abyte2 == nil)
      for k1 in 0...256
        abyte0[k1] = k1
      end
      if (abyte1 != nil && i1 > 0)
        j2 = 0
        l2 = 0
        for l1 in 0...256
          j3 = abyte0[l1] & 0xff
          j2 = j2 + j3 + ( abyte1[l2] & 0xff) & 0xff
          abyte0[l1] = abyte0[j2]
          abyte0[j2] = j3 & 0xff
          l2 = (l2 + 1) % i1
        end
      end
      abyte0[256] = 0
      abyte0[257] = 0
      return
    end
    i2 = abyte0[256] & 0xff
    k2 = abyte0[257] & 0xff
    for i3 in 0...i1
      i2 = i2 + 1 & 0xff
      k3 = abyte0[i2] & 0xff
      k2 = k2 + k3 & 0xff
      abyte0[i2] = abyte0[k2]
      abyte0[k2] = k3 & 0xff
      k3 += abyte0[i2] & 0xff
      abyte2[i3] = (abyte1[i3] ^ abyte0[k3 & 0xff])
      ""
    end
    abyte0[256] = (i2 & 0xff)
    abyte0[257] = (k2 & 0xff)
  end
end

#bytes(string) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 34

def bytes(string)
  Bytes.new(string)
end

#c(ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 168

def c(ai)
  ai[4] = j(ai[0], 5) + s(ai[1], ai[2], ai[3]) + ai[4] + ai[5] + 0x8f1bbcdc
  ai[2] = j(ai[1], 30)
end

#c_(ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 871

def c_(ai)
  ai1 = [nil]*32
  ai2 = ai
  i1 = 0
  flag = false
  k1 = 0
  l1 = 0
  while (i1 < 16)
    j1 = k1
    k1 += 1
    ai1[l1] = (ai2[j1] & 0xfc0000) << 6
    ai1[l1] |= (ai2[j1] & 0xfc0) << 10
    ai1[l1] |= (ai[k1] & 0xfc0000) >> 10
    ai1[l1] |= (ai[k1] & 0xfc0) >> 6
    l1 += 1
    ai1[l1] = (ai2[j1] & 0x3f000) << 12
    ai1[l1] |= (ai2[j1] & 0x3f) << 16
    ai1[l1] |= (ai[k1] & 0x3f000) >> 4
    ai1[l1] |= ai[k1] & 0x3f
    l1 += 1
    i1 += 1
    k1 += 1
  end
  return ai1
end

#check(s1, s2, flag) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 849

def check(s1, s2, flag)
  return true if decrypt(s1, s2, flag)
  false
end

#control(s1, s2, i1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 53

def control(s1, i1, s2)
  return new_control(s1, s2, i1, 0)
end

#d(abyte0, ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 173

def d(abyte0, ai)
  ai1 = [nil]*2
  t(abyte0, ai1)
  # puts "<br/>DEBUG d: after t abyte0=#{abyte0.unpack("H*")[0]}"
  # puts "<br/>DEBUG d: after t ai1=#{ai1.join(",")}"
  f_(ai1, ai)
  # puts "<br/>DEBUG d: after F ai1=#{ai1.join(",")}"
  # puts "<br/>DEBUG d: after F ai=#{ai.join(",")}"
  x(ai1, abyte0)
  # puts "<br/>DEBUG d: after x ai1=#{ai1.join(",")}"
  # puts "<br/>DEBUG d: after x abyte0=#{abyte0.unpack("H*")[0]}"
end

#d_(abyte0, abyte1, abyte2, i1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 897

def d_(abyte0, abyte1, abyte2, i1)
  for j1 in 0...8
    abyte2[j1 + i1] = (abyte0[j1] ^ abyte1[j1])
  end
end

#decrypt(s1, s2, flag) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 854

def decrypt(s1, s2, flag)
  if (s2 != nil && s2.length() > 0)
    if (s2[0, 2] == "ZG")
      # EBEI: Upcase case-insensitive passwords
      cid = new_check(s1.mb_chars.upcase.to_s, s2, flag)
    # EBEI: Support case sensitive passwords in R12
    elsif s2[0, 2] == "ZH"
      cid = new_check(s1, s2.gsub(/^ZH/, 'ZG'), flag)
    else
      cid = old_check(s1, s2, flag)
    end
  else
    return false
  end
  return cid
end

#e(ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 186

def e(ai)
  abyte0 = null_bytes 4
  abyte1 = nil
  if (ai != nil)
    abyte1 = null_bytes(ai.length)
    for i1 in 0...ai.length
      abyte0[3] = (ai[i1] & 0xff)
      abyte0[2] = ( (ai[i1] & 0xff00) >> 8)
      abyte0[1] = ( (ai[i1] & 0xff0000) >> 16)
      abyte0[0] = ( (ai[i1] & 0xff000000) >> 24)
      abyte1[i1] = (abyte0[0] ^ abyte0[1] ^ abyte0[2] ^ abyte0[3])
    end
  end
  return abyte1
end

#e_(s1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 903

def e_(s1)
end

#f(i1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 202

def f(i1)
  byte0 = 0
  j1 = i1 & 0x40
  if (j1 >= 1)
    byte0 = i1 - 55
  else
    byte0 = i1 & 0xf
  end
  return byte0
end

#f_(ai, ai1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 906

def f_(ai, ai1)
  j2 = 0
  l1 = ai[0]
  k1 = ai[1]
  j1 = (l1 >> 4 ^ k1) & 0xf0f0f0f
  k1 ^= j1
  l1 ^= (j1 << 4) & 0xffffffff
  j1 = (l1 >> 16 ^ k1) & 0xffff
  k1 ^= j1
  l1 ^= (j1 << 16) & 0xffffffff
  j1 = (k1 >> 2 ^ l1) & 0x33333333
  l1 ^= j1
  k1 ^= (j1 << 2) & 0xffffffff
  j1 = (k1 >> 8 ^ l1) & 0xff00ff
  l1 ^= j1
  k1 ^= (j1 << 8) & 0xffffffff
  k1 = (k1 << 1 | k1 >> 31 & 1) & 0xffffffff
  j1 = (l1 ^ k1) & 0xaaaaaaaa
  l1 ^= j1
  k1 ^= j1
  l1 = (l1 << 1 | l1 >> 31 & 1) & 0xffffffff
  for i2 in 0...8
    j1 = (k1 << 28 | k1 >> 4) & 0xffffffff
    l2 = 0
    l2 = ai1[j2]
    j1 ^= ai1[j2]
    j2 += 1
    i1 = Bj[j1 & 0x3f]
    i1 |= L[j1 >> 8 & 0x3f]
    i1 |= P[j1 >> 16 & 0x3f]
    i1 |= T[j1 >> 24 & 0x3f]
    j1 = k1 ^ ai1[j2]
    j2 += 1
    i1 |= Bg[j1 & 0x3f]
    i1 |= Bm[j1 >> 8 & 0x3f]
    i1 |= N[j1 >> 16 & 0x3f]
    i1 |= R[j1 >> 24 & 0x3f]
    l1 ^= i1
    j1 = (l1 << 28 | l1 >> 4) & 0xffffffff
    j1 ^= ai1[j2]
    j2 += 1
    i1 = Bj[j1 & 0x3f]
    i1 |= L[j1 >> 8 & 0x3f]
    i1 |= P[j1 >> 16 & 0x3f]
    i1 |= T[j1 >> 24 & 0x3f]
    j1 = l1 ^ ai1[j2]
    j2 += 1
    i1 |= Bg[j1 & 0x3f]
    i1 |= Bm[j1 >> 8 & 0x3f]
    i1 |= N[j1 >> 16 & 0x3f]
    i1 |= R[j1 >> 24 & 0x3f]
    k1 ^= i1
  end
  k1 = (k1 << 31 | k1 >> 1) & 0xffffffff
  j1 = (l1 ^ k1) & 0xaaaaaaaa
  l1 ^= j1
  k1 ^= j1
  l1 = l1 << 31 | l1 >> 1
  j1 = (l1 >> 8 ^ k1) & 0xff00ff
  k1 ^= j1
  l1 ^= (j1 << 8) & 0xffffffff
  j1 = (l1 >> 2 ^ k1) & 0x33333333
  k1 ^= j1
  l1 ^= (j1 << 2) & 0xffffffff
  j1 = (k1 >> 16 ^ l1) & 0xffff
  l1 ^= j1
  k1 ^= (j1 << 16) & 0xffffffff
  j1 = (k1 >> 4 ^ l1) & 0xf0f0f0f
  l1 ^= j1
  k1 ^= (j1 << 4) & 0xffffffff
  ai[0] = k1
  ai[1] = l1
end

#g(abyte0, abyte1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 213

def g(abyte0, abyte1)
  if (abyte0.length < 32)
    # puts "<br/>DEBUG g: nil1"
    return nil
  end
  if (abyte1.length % 8 != 0)
    # puts "<br/>DEBUG g: nil2"
    return nil
  end
  i1 = abyte1.length / 8
  abyte3 = null_bytes 8
  abyte4 = null_bytes 8
  abyte5 = null_bytes 8
  abyte2 = null_bytes 8
  abyte3[0,8] = abyte0[0, 8]
  abyte4[0,8] = abyte0[8, 8]
  abyte5[0,8] = abyte0[16, 8]
  abyte2[0,8] = abyte0[24, 8]
  ai = l(abyte3, false)
  ai1 = l(abyte4, true)
  ai2 = l(abyte5, false)
  abyte6 = null_bytes(abyte1.length)
  j1 = 0
  k1 = 0
  while (j1 < i1)
    q(abyte1, k1, abyte6, k1, ai, ai1, ai2, abyte2, false)
    # puts "<br/>DEBUG g: after q() abyte6=#{abyte6.unpack("H*")[0]}"
    j1 += 1
    k1 += 8
  end
  byte0 = abyte6[abyte1.length - 1]
  # puts "<br/>DEBUG g: abyte1=#{abyte1.unpack("H*")[0]}"
  # puts "<br/>DEBUG g: abyte1.length=#{abyte1.length}"
  # puts "<br/>DEBUG g: abyte6=#{abyte6.unpack("H*")[0]}"
  if (byte0 < 1 || byte0 > 8)
    # puts "<br/>DEBUG g: nil3"
    # puts "<br/>DEBUG g: byte0=#{byte0}"
    return nil
  end
  for l1 in (abyte1.length-byte0)...abyte1.length
    if (abyte6[l1] != byte0)
      # puts "<br/>DEBUG g: nil4"
      return nil
    end
  end
  abyte7 = null_bytes(abyte1.length - byte0)
  abyte7[0, abyte1.length - byte0] = abyte6[0, abyte1.length - byte0]
  # puts "<br/>DEBUG g: abyte7=#{abyte7.unpack("H*")[0]}"
  return abyte7
end

#g_(abyte0, abyte1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 980

def g_(abyte0, abyte1)
  if (abyte0.length < 32)
    return nil
  end
  abyte3 = null_bytes 8
  abyte4 = null_bytes 8
  abyte5 = null_bytes 8
  abyte2 = null_bytes 8
  abyte3[0, 8] = abyte0[0, 8]
  abyte4[0, 8] = abyte0[8, 8]
  abyte5[0, 8] = abyte0[16, 8]
  abyte2[0, 8] = abyte0[24, 0]
  ai = l(abyte3, true)
  ai1 = l(abyte4, false)
  ai2 = l(abyte5, true)
  i1 = abyte1.length % 8
  byte0 = (8 - i1)
  abyte6 = null_bytes(abyte1.length + byte0)
  j1 = abyte6.length / 8 - 1
  k1 = 8 * j1
  abyte7 = null_bytes 8
  abyte7[0, i1] = abyte1[k1, i1]
  for l1 in i1...8
    abyte7[l1] = byte0
  end
  i2 = 0
  j2 = 0
  while (i2 < j1)
    q(abyte1, j2, abyte6, j2, ai, ai1, ai2, abyte2, true)
    i2 += 1
    j2 += 8
  end
  q(abyte7, 0, abyte6, k1, ai, ai1, ai2, abyte2, true)
  return abyte6
end

#h(ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 264

def h(ai)
  ai[4] = j(ai[0], 5) + o(ai[1], ai[2], ai[3]) + ai[4] + ai[5] + 0xca62c1d6
  ai[2] = j(ai[1], 30)
end

#h_(ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 1016

def h_(ai)
  ai[4] = j(ai[0], 5) + r(ai[1], ai[2], ai[3]) + ai[4] + ai[5] + 0x5a827999
  ai[2] = j(ai[1], 30)
end

#hash(s1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 509

def hash(s1)
  if (s1 == nil)
    return nil
  end
  abyte0 = s1.dup
  abyte1 = y(nil, abyte0)
  return z(abyte1)
end

#i(abyte0, abyte1, abyte2) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 269

def i(abyte0, abyte1, abyte2)
  return g_(y(abyte0, abyte1), abyte2)
end

#i_(ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 1021

def i_(ai)
  ai[4] = j(ai[0], 5) + n(ai[1], ai[2], ai[3]) + ai[4] + ai[5] + 0x6ed9eba1
  ai[2] = j(ai[1], 30)
end

#j(i1, j1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 273

def j(i1, j1)
  return (i1 << j1 | i1 >> 32 - j1) & 0xffffffff
end

#k(abyte0, abyte1, i1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 277

def k(abyte0, abyte1, i1)
  if (abyte0 == nil || abyte1 == nil)
    return nil
  else
    ai = a(abyte0, abyte0.length)
    abyte2 = e(ai)
    abyte3 = null_bytes 258
    b_(abyte3, abyte2, nil, 5)
    abyte4 = null_bytes i1
    b_(abyte3, abyte1, abyte4, i1)
    return abyte4
  end
end

#l(abyte0, flag) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 291

def l(abyte0, flag)
  abyte1 = null_bytes 56
  abyte2 = null_bytes 56
  ai = [nil]*32
  # TODO: check impact of >>> substitution with >>
  for j1 in 0...56
    byte0 = V[j1]
    l2 = byte0 & 7
    abyte1[j1] = ( (abyte0[byte0 >> 3] & Bi[l2]) == 0 ? 0 : 1)
  end
  for i1 in 0...16
    if (flag)
      i3 = i1 << 1
    else
      i3 = 15 - i1 << 1
    end
    j3 = i3 + 1
    ai[i3] = ai[j3] = 0
    for k1 in 0...28
      j2 = k1 + Bb[i1]
      if (j2 < 28)
        abyte2[k1] = abyte1[j2]
      else
        abyte2[k1] = abyte1[j2 - 28]
      end
    end
    for l1 in 28...56
      k2 = l1 + Bb[i1]
      if (k2 < 56)
        abyte2[l1] = abyte1[k2]
      else
        abyte2[l1] = abyte1[k2 - 28]
      end
    end
    for i2 in 0...24
      if (abyte2[S[i2]] != 0)
        ai[i3] |= W[i2]
      end
      if (abyte2[S[i2 + 24]] != 0)
        ai[j3] |= W[i2]
      end
    end
  end
  return c_(ai)
end

#m(abyte0) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 364

def m(abyte0)
  while true
    if (abyte0 == nil)
      return nil
    end
    ac = null_bytes(abyte0.length)
    i1 = 0
    flag = false
    flag1 = false
    ac1 = nil
    begin
      break_value = for j1 in 0...abyte0.length do
        byte0 = abyte0[j1]
        if ( (byte0 & 0x80) == 0)
          ac[i1] = byte0
          i1 += 1
          if ( byte0 == 0)
            break
          end
          next
        end
        if ( (byte0 & 0xe0) == 192)
          c1 = ( (byte0 & 0x1f) << 6 & 0x7c0)
          j1 += 1
          byte0 = abyte0[j1]
          if ( (byte0 & 0x80) == 128)
            c1 |= byte0 & 0x3f
            ac[i1] = c1
            i1 += 1
            next
          end
          break :label0
        end
        if ( (byte0 & 0xf0) != 224)
          continue
        end
        c2 = ( (byte0 & 0xf) << 12 & 0xf000)
        j1 += 1
        byte0 = abyte0[j1]
        if ( (byte0 & 0x80) != 128)
          break :label0
        end
        c2 |= (byte0 & 0x3f) << 6 & 0xfc0
        j1 += 1
        byte0 = abyte0[j1]
        if ( (byte0 & 0x80) != 128)
          break :label0
        end
        c2 |= byte0 & 0x3f
        ac[i1] = c2
        i1 += 1
      end
      # RSI: jump back to label0 if brake was called with :label0
      if break_value == :label0
        next
      end
      ac1 = null_bytes i1
      ac1[0,i1] = ac[0,i1]
    end
    return ac1
  end
end

#n(i1, j1, k1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 428

def n(i1, j1, k1)
  return i1 ^ j1 ^ k1
end

#new_check(s1, s2, flag) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 107

def new_check(s1, s2, flag)
  if (s1 == nil || s2 == nil ||
      s2.length >= "ZG_ENCRYPT_FAILED_".length &&
      s2[0, "ZG_ENCRYPT_FAILED_".length] == "ZG_ENCRYPT_FAILED_")
    return nil
  end
  abyte0 = bytes s1.dup
  l2 = abyte0.length
  i3 = s2.length
  i1 = 1
  byte0 = 2
  j1 = i3 - 2 - i1 * 2
  if (j1 <= 0)
    return nil
  end
  k1 = (j1 / 16) * 8
  if (k1 <= 0)
    return nil
  end
  l1 = (j1 % 16) / 2
  i2 = l1 + i1
  j2 = k1 - 1 - byte0
  if (j2 <= 0)
    return nil
  end
  if (not s2[0, 2] == "ZG")
    return nil
  end
  s3 = s2[2..-1]
  abyte1 = p(s3)
  abyte2 = null_bytes(abyte1.length - i2)
  abyte3 = null_bytes i2
  abyte2[0, abyte1.length - i2] = abyte1[0, abyte1.length - i2]
  abyte3[0, i2] = abyte1[abyte1.length - i2, i2]
  abyte4 = null_bytes(i2 + l2)
  abyte4[0, i2] = abyte3[0, i2]
  abyte4[i2, l2] = abyte0[0, l2]
  # puts "<br/>DEBUG new_check: abyte4=#{abyte4.inspect} abyte2=#{abyte2.unpack("H*")[0]}"
  abyte5 = v(nil, abyte4, abyte2)
  if (abyte5 == nil)
    # puts "<br/>DEBUG new_check: :nil6"
    return nil
  end
  j3 = abyte5.length
  for k2 in byte0...abyte5.length
    if (abyte5[k2] != 0)
      next
    end
    j3 = k2
    break
  end
  abyte6 = null_bytes(j3 - byte0)
  abyte6[0, j3 - byte0] = abyte5[byte0, j3 - byte0]
  s4 = abyte6
  if (s4 != nil && flag)
    return w(s4, 0, flag)
  else
    return s4
  end
end

#new_control(s1, s2, i1, j1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 518

def new_control(s1, s2, i1, j1)
  if (s1 == nil || s2 == nil)
    return "ZG_ENCRYPT_FAILED_BADINPUT"
  end
  if (i1 > 0)
    k1 = i1
  elsif (j1 == 32)
    k1 = 100
  elsif (j1 < 32 && j1 == s2.length())
    k1 = 100
  else
    abyte1 = s2.dup
    k1 = ( (abyte1.length + 10) / 8) * 16 + 4 + 14
  end
  l1 = 1
  byte0 = 2
  i2 = k1 - 2 - l1 * 2
  if (i2 <= 0)
    return "ZG_ENCRYPT_FAILED_SMALLBUF"
  end
  j2 = (i2 / 16) * 8
  if (j2 <= 0)
    return "ZG_ENCRYPT_FAILED_SMALLBUF"
  end
  k2 = (i2 % 16) / 2
  l2 = k2 + l1
  i3 = j2 - 1 - byte0
  if (i3 <= 0)
    return "ZG_ENCRYPT_FAILED_SMALLBUF"
  end
  abyte0 = s1.dup
  abyte2 = s2.dup
  j3 = abyte0.length
  k3 = abyte2.length
  if (k3 > i3)
    return "ZG_ENCRYPT_FAILED_CHARSET_CLIP"
  end
  ai = [nil]*l2
  for l3 in 0...l2
    ai[l3] = rand(2**32)-2**31
  end
  abyte3 = e(ai)
  ai = nil
  byte1 = byte0
  ai = [nil]*byte1
  for i4 in 0...byte1
    ai[i4] = rand(2**32)-2**31
  end
  abyte4 = e(ai)
  ai = nil
  j4 = i3 - k3
  ai = [nil]*j4
  for k4 in 0...j4
    if (k4 == 0)
      ai[k4] = 0
    else
      ai[k4] = rand(2**32)-2**31
    end
  end
  abyte5 = e(ai)
  ai = nil
  abyte6 = null_bytes(byte1 + j4 + k3)
  abyte6[0, byte1] = abyte4[0, byte1]
  abyte6[byte1, k3] = abyte2[0, k3]
  abyte6[byte1+k3, j4] = abyte5[0, j4]
  abyte7 = null_bytes(l2 + j3)
  abyte7[0, l2] = abyte3[0, l2]
  abyte7[l2, j3] = abyte0[0, j3]
  abyte8 = i(nil, abyte7, abyte6)
  if (abyte8 == nil)
    return "ZG_ENCRYPT_FAILED_MISC"
  else
    abyte9 = null_bytes(abyte8.length + l2)
    abyte9[0, abyte8.length] = abyte8[0, abyte8.length]
    abyte9[abyte8.length, l2] = abyte3[0, l2]
    s3 = z(abyte9)
    return "ZG" + s3
  end
end

#null_bytes(count) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 45

def null_bytes(count)
  bytes("\0") * count
end

#o(i1, j1, k1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 432

def o(i1, j1, k1)
  return i1 ^ j1 ^ k1
end

#old_check(s1, s2, flag) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 727

def old_check(s1, s2, flag)
  abyte0 = a_(s1.dup)
  abyte1 = p(s2)
  abyte2 = k(abyte0, abyte1, abyte1.length)
  ac = m(abyte2)
  if (ac != nil)
    s3 = ac.to_s
  else
    return nil
  end
end

#old_control(s1, s2, i1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 337

def old_control(s1, s2, i1)
  if (s1 == nil || s2 == nil)
    return nil
  end
  abyte0 = a_(s1.dup)
  #j1 = s2.mb_chars.length
  j1 = s2.length

  if (j1 > i1 - 1)
    j1 = i1 - 1
  end
  k1 = i1 - j1 - 1
  ai = [nil]*k1
  # TODO: substitute Java random.nextInt() with ruby
  for l1 in 0..k1
    # simulation of random.nextInt()
    ai[l1] = rand(2**32)-2**31
  end
  abyte1 = e(ai)
  abyte2 = a_( (s2 + "\0") )
  abyte3 = null_bytes(k1 + abyte2.length)
  abyte3[0, abyte2.length] = abyte2[0, abyte2.length]
  abyte3[abyte2.length, k1] = abyte1[0, k1]
  abyte4 = k(abyte0, abyte3, i1)
  return z(abyte4)
end

#p(s1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 440

def p(s1)
  s1 = bytes s1
  flag = false
  flag1 = false
  i1 = 0
  j1 = 0
  abyte0 = nil
  if (s1 == nil)
    return nil
  end
  k1 = s1.length / 2
  if (k1 > 0)
    abyte0 = null_bytes k1
    while (k1 > 0)
      #c1 = s1.chars[i1]
      c1 = s1[i1]
      i1 += 1
      #c2 = s1.chars[i1]
      c2 = s1[i1]
      i1 += 1
      abyte0[j1] = (f(c1) << 4 | f(c2)) & 0xffffffff
      j1 += 1
      k1 -= 1
    end
  end
  return abyte0
end

#q(abyte0, i1, abyte1, j1, ai, ai1, ai2, abyte2, flag) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 468

def q(abyte0, i1, abyte1, j1, ai,
      ai1, ai2, abyte2,
      flag)
  abyte3 = null_bytes 8
  abyte3[0, 8] = abyte0[i1, 8]
  if (!flag)
    # puts "<br/>DEBUG q: initial abyte3=#{abyte3.unpack("H*")[0]}"
    # puts "<br/>DEBUG q: initial ai2=#{ai2.join(',')}"
    # puts "<br/>DEBUG q: initial ai1=#{ai1.join(',')}"
    # puts "<br/>DEBUG q: initial ai=#{ai.join(',')}"
    d(abyte3, ai2)
    # puts "<br/>DEBUG q: abyte3=#{abyte3.unpack("H*")[0]}"
    d(abyte3, ai1)
    # puts "<br/>DEBUG q: abyte3=#{abyte3.unpack("H*")[0]}"
    d(abyte3, ai)
    # puts "<br/>DEBUG q: abyte3=#{abyte3.unpack("H*")[0]}"
    d_(abyte3, abyte2, abyte1, j1)
    # puts "<br/>DEBUG q: abyte3=#{abyte3.unpack("H*")[0]}"
    # puts "<br/>DEBUG q: abyte2=#{abyte2.unpack("H*")[0]}"
    # puts "<br/>DEBUG q: abyte1=#{abyte1.unpack("H*")[0]}"
    abyte2[0, 8] = abyte0[i1, 8]
    return
  else
    d_(abyte3, abyte2, abyte3, 0);
    d(abyte3, ai);
    d(abyte3, ai1);
    d(abyte3, ai2);
    abyte2[0, 8] = abyte3[0, 8]
    abyte1[j1, 8] = abyte3[0, 8]
    return
  end
end

#r(i1, j1, k1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 501

def r(i1, j1, k1)
  return i1 & j1 | ~i1 & k1
end

#s(i1, j1, k1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 505

def s(i1, j1, k1)
  return i1 & j1 | i1 & k1 | j1 & k1
end

#t(abyte0, ai) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 598

def t(abyte0, ai)
  i1 = 0
  ai[0] = ((abyte0[i1] & 0xff) << 24)  & 0xffffffff
  i1 += 1
  ai[0] |= ((abyte0[i1] & 0xff) << 16) & 0xffffffff
  i1 += 1
  ai[0] |= ((abyte0[i1] & 0xff) << 8) & 0xffffffff
  i1 += 1
  ai[0] |= abyte0[i1] & 0xff
  i1 += 1
  ai[1] = ((abyte0[i1] & 0xff) << 24) & 0xffffffff
  i1 += 1
  ai[1] |= ((abyte0[i1] & 0xff) << 16) & 0xffffffff
  i1 += 1
  ai[1] |= ((abyte0[i1] & 0xff) << 8) & 0xffffffff
  i1 += 1
  ai[1] |= abyte0[i1] & 0xff
end

#u(ai, ai1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 617

def u(ai, ai1)
  flag = false
  flag1 = false
  ai2 = [nil]*80
  l1 = 0
  ai3 = [nil]*5
  ai4 = [nil]*6
  ai5 = [nil]*5
  ai3[0] = 0x67452301
  ai3[1] = 0xefcdab89
  ai3[2] = 0x98badcfe
  ai3[3] = 0x10325476
  ai3[4] = 0xc3d2e1f0
  if (ai1 != nil)
    if (ai != nil)
      ai4[0, 5] = ai[0, 5]
    end
    byte0 = 80
    for i1 in 0...16
      ai2[i1] = ai1[i1]
    end
    while (i1 < byte0)
      ai2[i1] = ai2[i1 - 3] ^ ai2[i1 - 8] ^ ai2[i1 - 14] ^ ai2[i1 - 16]
      i1 += 1
    end
    for j1 in 0...80
      if (j1 != 0)
        ai5[0, 5] = ai4[0, 5]
        ai4[0] = ai5[4];
        ai4[1] = ai5[0];
        ai4[2] = ai5[1];
        ai4[3] = ai5[2];
        ai4[4] = ai5[3];
      end
      ai4[5] = ai2[j1]
      if (j1 < 20)
        h_(ai4)
      elsif (j1 < 40)
        i_(ai4)
      elsif (j1 < 60)
        c(ai4)
      elsif (j1 < 80)
        h(ai4)
      end
    end
    ai3[0] = ai4[4];
    ai3[1] = ai4[0];
    ai3[2] = ai4[1];
    ai3[3] = ai4[2];
    ai3[4] = ai4[3];
    for k1 in 0...byte0
      ai2[k1] = 0
    end
  end
  if (ai != nil)
    ai[0] = ai3[0];
    ai[1] = ai3[1];
    ai[2] = ai3[2];
    ai[3] = ai3[3];
    ai[4] = ai3[4];
  end
  l1 = ai3[0] ^ ai3[1] ^ ai3[2] ^ ai3[3] ^ ai3[4]
  return l1
end

#v(abyte0, abyte1, abyte2) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 682

def v(abyte0, abyte1, abyte2)
  return g(y(abyte0, abyte1), abyte2)
end

#w(s1, i1, flag) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 686

def w(s1, i1, flag)
  if (s1 == nil)
    return ""
  end
  j1 = s1.length
  k1 = s1.index(bytes("\0"))
  if (k1 > -1)
    j1 = k1
  end
  if (j1 > i1 && i1 > 0)
    l1 = i1
  else
    l1 = j1
  end
  if (flag)
    # TODO: should we do Unicode upcase?
    return s1[0, l1].upcase
  else
    return s1[0, l1]
  end
end

#x(ai, abyte0) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 708

def x(ai, abyte0)
  i1 = 0
  abyte0[i1] = (ai[0] >> 24 & 0xff)
  i1 += 1
  abyte0[i1] = (ai[0] >> 16 & 0xff)
  i1 += 1
  abyte0[i1] = (ai[0] >> 8 & 0xff)
  i1 += 1
  abyte0[i1] = (ai[0] & 0xff)
  i1 += 1
  abyte0[i1] = (ai[1] >> 24 & 0xff)
  i1 += 1
  abyte0[i1] = (ai[1] >> 16 & 0xff)
  i1 += 1
  abyte0[i1] = (ai[1] >> 8 & 0xff)
  i1 += 1
  abyte0[i1] = (ai[1] & 0xff)
end

#y(abyte0, abyte1) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 739

def y(abyte0, abyte1)
  # puts "<br/>DEBUG y: abyte0=#{abyte0.nil? ? "nil" : abyte0.unpack("H*")[0]}"
  # puts "<br/>DEBUG y: abyte1=#{abyte1.nil? ? "nil" : abyte1.unpack("H*")[0]}"
  abyte2 = null_bytes 32
  messagedigest = Digest::SHA1.new
  messagedigest.reset
  byte0 = 20
  if (abyte0 != nil && abyte0.length > 0)
    messagedigest.update(abyte0)
  end
  if (abyte1 != nil && abyte1.length > 0)
    messagedigest.update(abyte1)
  end
  messagedigest.update(1.chr)
  abyte3 = messagedigest.digest
  # puts "<br/>DEBUG y: abyte3=#{abyte3.nil? ? "nil" : abyte3.unpack("H*")[0]}"
  abyte2[0, byte0] = abyte3[0, byte0]
  messagedigest.reset()
  if (abyte0 != nil && abyte0.length > 0)
    messagedigest.update(abyte0)
  end
  if (abyte1 != nil && abyte1.length > 0)
    messagedigest.update(abyte1)
  end
  messagedigest.update( 2.chr )
  abyte3 = messagedigest.digest
  abyte2[byte0, 32 - byte0] = abyte3[0, 32 - byte0]
  # puts "<br/>DEBUG y: abyte2=#{abyte2.unpack("H*")[0]}"
  return abyte2
end

#z(abyte0) ⇒ Object 



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# File 'lib/oracle_ebs_authentication/security.rb', line 770

def z(abyte0)
  abyte0.unpack("H*")[0].upcase
end