sha

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• Variables

Variables

var Logger = log.New().SetOutputToNil().SetPrefix(func(s string) string {
	return color.New().SetFontBold().Colorful("Log     ")
})

var SHA1 = func() func([]byte) []byte {
	getK := func(t int) (k uint32) {
		switch {
		case t <= 19:
			k = 0x5A827999
		case t >= 20 && t <= 39:
			k = 0x6ED9EBA1
		case t >= 40 && t <= 59:
			k = 0x8F1BBCDC
		case t >= 60 && t <= 79:
			k = 0xCA62C1D6
		}
		return
	}
	makeW := func(group []byte) (w []uint32) {
		w = make([]uint32, 80)
		for t := 0; t < 80; t++ {
			if t < 16 {
				w[t] = binary.BigEndian.Uint32(group[t*4 : (t+1)*4])
			} else {
				w[t] = bits.RotateLeft32(w[t-3]^w[t-8]^w[t-14]^w[t-16], 1)
			}
		}
		return
	}

	f := func(x uint32, y uint32, z uint32, t int) (ret uint32) {
		switch {
		case t <= 19:
			ret = uint32Ch(x, y, z)
		case t >= 20 && t <= 39, t >= 60 && t <= 79:
			ret = x ^ y ^ z
		case t >= 40 && t <= 59:
			ret = uint32Maj(x, y, z)
		}
		return
	}

	return func(input []byte) []byte {
		input = uint32InputInitial(input)
		reg := newRegister32(
			0x67452301,
			0xEFCDAB89,
			0x98BADCFE,
			0x10325476,
			0xC3D2E1F0,
		)

		l := len(input)
		for i := 0; i*64 < l; i++ {
			group := input[i*64 : (i+1)*64]
			reg2 := reg.copy()

			w := makeW(group)

			for t := 0; t < 80; t++ {
				T1 := uint32Sum(bits.RotateLeft32(reg2.v[0], 5), f(reg2.v[1], reg2.v[2], reg2.v[3], t), reg2.v[4], w[t], getK(t))
				reg2.v[4] = reg2.v[3]
				reg2.v[3] = reg2.v[2]
				reg2.v[2] = bits.RotateLeft32(reg2.v[1], 30)
				reg2.v[1] = reg2.v[0]
				reg2.v[0] = T1

				Logger.Printf("%02d %s\n", t, reg2.toString())
			}
			reg.op(reg2, func(a uint32, b uint32) uint32 { return uint32Sum(a, b) })
			Logger.Printf("   %s\n", reg.toString())
		}
		return reg.toBytes()
	}
}()

var SHA224 = func() func([]byte) []byte {
	k := []uint32{
		0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
		0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
		0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
		0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
		0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
		0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
		0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
		0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
		0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
		0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
		0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
		0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
		0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
		0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
		0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
		0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
	}
	makeW := func(group []byte) (w []uint32) {
		w = make([]uint32, 64)
		for t := 0; t < 64; t++ {
			if t < 16 {
				w[t] = binary.BigEndian.Uint32(group[t*4 : (t+1)*4])
			} else {
				w[t] = uint32Sum(uint32sigma1(w[t-2]), w[t-7], uint32sigma0(w[t-15]), w[t-16])
			}
		}
		return
	}

	return func(input []byte) []byte {
		input = uint32InputInitial(input)
		reg := newRegister32(
			0xc1059ed8,
			0x367cd507,
			0x3070dd17,
			0xf70e5939,
			0xffc00b31,
			0x68581511,
			0x64f98fa7,
			0xbefa4fa4,
		)

		l := len(input)
		for i := 0; i*64 < l; i++ {
			group := input[i*64 : (i+1)*64]
			reg2 := reg.copy()

			w := makeW(group)

			for t := 0; t < 64; t++ {
				T1 := uint32Sum(reg2.v[7], uint32Ch(reg2.v[4], reg2.v[5], reg2.v[6]), uint32Sigma1(reg2.v[4]), w[t], k[t])
				T2 := uint32Sum(uint32Maj(reg2.v[0], reg2.v[1], reg2.v[2]), uint32Sigma0(reg2.v[0]))
				reg2.v[7] = reg2.v[6]
				reg2.v[6] = reg2.v[5]
				reg2.v[5] = reg2.v[4]
				reg2.v[4] = uint32Sum(reg2.v[3], T1)
				reg2.v[3] = reg2.v[2]
				reg2.v[2] = reg2.v[1]
				reg2.v[1] = reg2.v[0]
				reg2.v[0] = uint32Sum(T1, T2)

				Logger.Printf("%02d %s\n", t, reg2.toString())
			}
			reg.op(reg2, func(a uint32, b uint32) uint32 { return uint32Sum(a, b) })
			Logger.Printf("   %s\n", reg.toString())
		}
		reg.v = reg.v[:reg.l-1]
		return reg.toBytes()
	}
}()

var SHA256 = func() func([]byte) []byte {
	k := []uint32{
		0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
		0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
		0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
		0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
		0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
		0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
		0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
		0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
		0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
		0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
		0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
		0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
		0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
		0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
		0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
		0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
	}
	makeW := func(group []byte) (w []uint32) {
		w = make([]uint32, 64)
		for t := 0; t < 64; t++ {
			if t < 16 {
				w[t] = binary.BigEndian.Uint32(group[t*4 : (t+1)*4])
			} else {
				w[t] = uint32Sum(uint32sigma1(w[t-2]), w[t-7], uint32sigma0(w[t-15]), w[t-16])
			}
		}
		return
	}

	return func(input []byte) []byte {
		input = uint32InputInitial(input)
		reg := newRegister32(
			0x6A09E667,
			0xBB67AE85,
			0x3C6EF372,
			0xA54FF53A,
			0x510E527F,
			0x9B05688C,
			0x1F83D9AB,
			0x5BE0CD19,
		)

		l := len(input)
		for i := 0; i*64 < l; i++ {
			group := input[i*64 : (i+1)*64]
			reg2 := reg.copy()

			w := makeW(group)

			for t := 0; t < 64; t++ {
				T1 := uint32Sum(reg2.v[7], uint32Ch(reg2.v[4], reg2.v[5], reg2.v[6]), uint32Sigma1(reg2.v[4]), w[t], k[t])
				T2 := uint32Sum(uint32Maj(reg2.v[0], reg2.v[1], reg2.v[2]), uint32Sigma0(reg2.v[0]))
				reg2.v[7] = reg2.v[6]
				reg2.v[6] = reg2.v[5]
				reg2.v[5] = reg2.v[4]
				reg2.v[4] = uint32Sum(reg2.v[3], T1)
				reg2.v[3] = reg2.v[2]
				reg2.v[2] = reg2.v[1]
				reg2.v[1] = reg2.v[0]
				reg2.v[0] = uint32Sum(T1, T2)

				Logger.Printf("%02d %s\n", t, reg2.toString())
			}
			reg.op(reg2, func(a uint32, b uint32) uint32 { return uint32Sum(a, b) })
			Logger.Printf("   %s\n", reg.toString())
		}
		return reg.toBytes()
	}
}()

var SHA384 = func() func([]byte) []byte {
	k := []uint64{
		0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc,
		0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118,
		0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2,
		0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19bf174cf692694,
		0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65,
		0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5,
		0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4,
		0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x142929670a0e6e70,
		0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df,
		0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b,
		0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30,
		0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8,
		0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8,
		0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3,
		0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec,
		0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b,
		0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178,
		0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b710b35131c471b,
		0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c,
		0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817,
	}
	makeW := func(group []byte) (w []uint64) {
		w = make([]uint64, 80)
		for t := 0; t < 80; t++ {
			if t < 16 {
				w[t] = binary.BigEndian.Uint64(group[t*8 : (t+1)*8])
			} else {
				w[t] = uint64Sum(uint64sigma1(w[t-2]), w[t-7], uint64sigma0(w[t-15]), w[t-16])
			}
		}
		return
	}

	return func(input []byte) []byte {
		input = uint64InputInitial(input)
		reg := newRegister64(
			0xcbbb9d5dc1059ed8,
			0x629a292a367cd507,
			0x9159015a3070dd17,
			0x152fecd8f70e5939,
			0x67332667ffc00b31,
			0x8eb44a8768581511,
			0xdb0c2e0d64f98fa7,
			0x47b5481dbefa4fa4,
		)

		l := len(input)
		for i := 0; i*128 < l; i++ {
			group := input[i*128 : (i+1)*128]
			reg2 := reg.copy()

			w := makeW(group)

			for t := 0; t < 80; t++ {
				T1 := uint64Sum(reg2.v[7], uint64Ch(reg2.v[4], reg2.v[5], reg2.v[6]), uint64Sigma1(reg2.v[4]), w[t], k[t])
				T2 := uint64Sum(uint64Maj(reg2.v[0], reg2.v[1], reg2.v[2]), uint64Sigma0(reg2.v[0]))
				reg2.v[7] = reg2.v[6]
				reg2.v[6] = reg2.v[5]
				reg2.v[5] = reg2.v[4]
				reg2.v[4] = uint64Sum(reg2.v[3], T1)
				reg2.v[3] = reg2.v[2]
				reg2.v[2] = reg2.v[1]
				reg2.v[1] = reg2.v[0]
				reg2.v[0] = uint64Sum(T1, T2)

				Logger.Printf("%02d %s\n", t, reg2.toString())
			}
			reg.op(reg2, func(a uint64, b uint64) uint64 { return uint64Sum(a, b) })
			Logger.Printf("   %s\n", reg.toString())
		}
		reg.v = reg.v[:reg.l-2]
		return reg.toBytes()
	}
}()

var SHA512 = func() func([]byte) []byte {
	k := []uint64{
		0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc,
		0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118,
		0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2,
		0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19bf174cf692694,
		0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65,
		0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5,
		0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4,
		0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x142929670a0e6e70,
		0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df,
		0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b,
		0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30,
		0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8,
		0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8,
		0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3,
		0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec,
		0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b,
		0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178,
		0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b710b35131c471b,
		0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c,
		0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817,
	}
	makeW := func(group []byte) (w []uint64) {
		w = make([]uint64, 80)
		for t := 0; t < 80; t++ {
			if t < 16 {
				w[t] = binary.BigEndian.Uint64(group[t*8 : (t+1)*8])
			} else {
				w[t] = uint64Sum(uint64sigma1(w[t-2]), w[t-7], uint64sigma0(w[t-15]), w[t-16])
			}
		}
		return
	}

	return func(input []byte) []byte {
		input = uint64InputInitial(input)
		reg := newRegister64(
			0x6a09e667f3bcc908,
			0xbb67ae8584caa73b,
			0x3c6ef372fe94f82b,
			0xa54ff53a5f1d36f1,
			0x510e527fade682d1,
			0x9b05688c2b3e6c1f,
			0x1f83d9abfb41bd6b,
			0x5be0cd19137e2179,
		)

		l := len(input)
		for i := 0; i*128 < l; i++ {
			group := input[i*128 : (i+1)*128]
			reg2 := reg.copy()

			w := makeW(group)

			for t := 0; t < 80; t++ {
				T1 := uint64Sum(reg2.v[7], uint64Ch(reg2.v[4], reg2.v[5], reg2.v[6]), uint64Sigma1(reg2.v[4]), w[t], k[t])
				T2 := uint64Sum(uint64Maj(reg2.v[0], reg2.v[1], reg2.v[2]), uint64Sigma0(reg2.v[0]))
				reg2.v[7] = reg2.v[6]
				reg2.v[6] = reg2.v[5]
				reg2.v[5] = reg2.v[4]
				reg2.v[4] = uint64Sum(reg2.v[3], T1)
				reg2.v[3] = reg2.v[2]
				reg2.v[2] = reg2.v[1]
				reg2.v[1] = reg2.v[0]
				reg2.v[0] = uint64Sum(T1, T2)

				Logger.Printf("%02d %s\n", t, reg2.toString())
			}
			reg.op(reg2, func(a uint64, b uint64) uint64 { return uint64Sum(a, b) })
			Logger.Printf("   %s\n", reg.toString())
		}
		return reg.toBytes()
	}
}()