mirror of
https://github.com/Luzifer/cloudkeys-go.git
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Knut Ahlers
a1df72edc5
commitf0db1ff1f8Author: Knut Ahlers <knut@ahlers.me> Date: Sun Dec 24 12:19:56 2017 +0100 Mark option as deprecated Signed-off-by: Knut Ahlers <knut@ahlers.me> commit9891df2a16Author: Knut Ahlers <knut@ahlers.me> Date: Sun Dec 24 12:11:56 2017 +0100 Fix: Typo Signed-off-by: Knut Ahlers <knut@ahlers.me> commit836006de64Author: Knut Ahlers <knut@ahlers.me> Date: Sun Dec 24 12:04:20 2017 +0100 Add new dependencies Signed-off-by: Knut Ahlers <knut@ahlers.me> commitd64fee60c8Author: Knut Ahlers <knut@ahlers.me> Date: Sun Dec 24 11:55:52 2017 +0100 Replace insecure password hashing Prior this commit passwords were hashed with a static salt and using the SHA1 hashing function. This could lead to passwords being attackable in case someone gets access to the raw data stored inside the database. This commit introduces password hashing using bcrypt hashing function which addresses this issue. Old passwords are not automatically re-hashed as they are unknown. Replacing the old password scheme is not that easy and needs #10 to be solved. Therefore the old hashing scheme is kept for compatibility reason. Signed-off-by: Knut Ahlers <knut@ahlers.me> Signed-off-by: Knut Ahlers <knut@ahlers.me> closes #14 closes #15
89 lines
2 KiB
Go
89 lines
2 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// MD4 block step.
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// In its own file so that a faster assembly or C version
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// can be substituted easily.
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package md4
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var shift1 = []uint{3, 7, 11, 19}
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var shift2 = []uint{3, 5, 9, 13}
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var shift3 = []uint{3, 9, 11, 15}
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var xIndex2 = []uint{0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15}
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var xIndex3 = []uint{0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15}
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func _Block(dig *digest, p []byte) int {
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a := dig.s[0]
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b := dig.s[1]
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c := dig.s[2]
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d := dig.s[3]
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n := 0
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var X [16]uint32
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for len(p) >= _Chunk {
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aa, bb, cc, dd := a, b, c, d
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j := 0
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for i := 0; i < 16; i++ {
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X[i] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24
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j += 4
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}
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// If this needs to be made faster in the future,
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// the usual trick is to unroll each of these
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// loops by a factor of 4; that lets you replace
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// the shift[] lookups with constants and,
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// with suitable variable renaming in each
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// unrolled body, delete the a, b, c, d = d, a, b, c
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// (or you can let the optimizer do the renaming).
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//
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// The index variables are uint so that % by a power
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// of two can be optimized easily by a compiler.
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// Round 1.
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for i := uint(0); i < 16; i++ {
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x := i
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s := shift1[i%4]
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f := ((c ^ d) & b) ^ d
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a += f + X[x]
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a = a<<s | a>>(32-s)
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a, b, c, d = d, a, b, c
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}
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// Round 2.
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for i := uint(0); i < 16; i++ {
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x := xIndex2[i]
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s := shift2[i%4]
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g := (b & c) | (b & d) | (c & d)
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a += g + X[x] + 0x5a827999
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a = a<<s | a>>(32-s)
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a, b, c, d = d, a, b, c
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}
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// Round 3.
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for i := uint(0); i < 16; i++ {
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x := xIndex3[i]
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s := shift3[i%4]
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h := b ^ c ^ d
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a += h + X[x] + 0x6ed9eba1
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a = a<<s | a>>(32-s)
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a, b, c, d = d, a, b, c
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}
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a += aa
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b += bb
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c += cc
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d += dd
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p = p[_Chunk:]
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n += _Chunk
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}
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dig.s[0] = a
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dig.s[1] = b
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dig.s[2] = c
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dig.s[3] = d
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return n
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}
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