[Cryptech-Commits] [core/hash/sha512] branch clock_speed updated: (1) Added dumping of T1 inputs, calculated values and result needed to pipeline the design. (2) Automagically removed trailing whitespace (thanks Emacs).
git at cryptech.is
git at cryptech.is
Thu Apr 5 14:38:46 UTC 2018
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joachim at secworks.se pushed a commit to branch clock_speed
in repository core/hash/sha512.
The following commit(s) were added to refs/heads/clock_speed by this push:
new e7b732c (1) Added dumping of T1 inputs, calculated values and result needed to pipeline the design. (2) Automagically removed trailing whitespace (thanks Emacs).
e7b732c is described below
commit e7b732c3ea5dd1849bb7711da04f569f82aea372
Author: Joachim Strömbergson <joachim at secworks.se>
AuthorDate: Thu Apr 5 16:38:25 2018 +0200
(1) Added dumping of T1 inputs, calculated values and result needed to pipeline the design. (2) Automagically removed trailing whitespace (thanks Emacs).
---
src/model/python/sha512.py | 77 +++++++++++++++++++++++++++-------------------
1 file changed, 46 insertions(+), 31 deletions(-)
diff --git a/src/model/python/sha512.py b/src/model/python/sha512.py
index b4d47e6..8116c20 100755
--- a/src/model/python/sha512.py
+++ b/src/model/python/sha512.py
@@ -12,7 +12,7 @@
# Author: Joachim Strömbergson
# Copyright (c) 2014, NORDUnet A/S
# All rights reserved.
-#
+#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
@@ -62,7 +62,7 @@ class SHA512():
'MODE_SHA_384', 'MODE_SHA_512']
self.mode = mode
self.verbose = verbose
- self.mode
+ self.mode
self.NUM_ROUNDS = 80
self.H = [0] * 8
self.t1 = 0
@@ -78,7 +78,7 @@ class SHA512():
self.w = 0
self.W = [0] * 16
self.k = 0
- self.K = [0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f,
+ self.K = [0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f,
0xe9b5dba58189dbbc, 0x3956c25bf348b538, 0x59f111f1b605d019,
0x923f82a4af194f9b, 0xab1c5ed5da6d8118, 0xd807aa98a3030242,
0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2,
@@ -106,7 +106,7 @@ class SHA512():
0x431d67c49c100d4c, 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a,
0x5fcb6fab3ad6faec, 0x6c44198c4a475817]
-
+
def init(self):
if self.mode == 'MODE_SHA_512_224':
self.H = [0x8c3d37c819544da2, 0x73e1996689dcd4d6,
@@ -115,23 +115,23 @@ class SHA512():
0x3f9d85a86a1d36c8, 0x1112e6ad91d692a1]
elif self.mode == 'MODE_SHA_512_256':
- self.H = [0x22312194fc2bf72c, 0x9f555fa3c84c64c2,
- 0x2393b86b6f53b151, 0x963877195940eabd,
- 0x96283ee2a88effe3, 0xbe5e1e2553863992,
+ self.H = [0x22312194fc2bf72c, 0x9f555fa3c84c64c2,
+ 0x2393b86b6f53b151, 0x963877195940eabd,
+ 0x96283ee2a88effe3, 0xbe5e1e2553863992,
0x2b0199fc2c85b8aa, 0x0eb72ddc81c52ca2]
-
+
elif self.mode == 'MODE_SHA_384':
self.H = [0xcbbb9d5dc1059ed8, 0x629a292a367cd507,
- 0x9159015a3070dd17, 0x152fecd8f70e5939,
- 0x67332667ffc00b31, 0x8eb44a8768581511,
+ 0x9159015a3070dd17, 0x152fecd8f70e5939,
+ 0x67332667ffc00b31, 0x8eb44a8768581511,
0xdb0c2e0d64f98fa7, 0x47b5481dbefa4fa4]
elif self.mode == 'MODE_SHA_512':
self.H = [0x6a09e667f3bcc908, 0xbb67ae8584caa73b,
- 0x3c6ef372fe94f82b, 0xa54ff53a5f1d36f1,
- 0x510e527fade682d1, 0x9b05688c2b3e6c1f,
+ 0x3c6ef372fe94f82b, 0xa54ff53a5f1d36f1,
+ 0x510e527fade682d1, 0x9b05688c2b3e6c1f,
0x1f83d9abfb41bd6b, 0x5be0cd19137e2179]
-
+
def next(self, block):
self._W_schedule(block)
@@ -163,16 +163,16 @@ class SHA512():
def _copy_digest(self):
- self.a = self.H[0]
- self.b = self.H[1]
- self.c = self.H[2]
- self.d = self.H[3]
- self.e = self.H[4]
- self.f = self.H[5]
- self.g = self.H[6]
+ self.a = self.H[0]
+ self.b = self.H[1]
+ self.c = self.H[2]
+ self.d = self.H[3]
+ self.e = self.H[4]
+ self.f = self.H[5]
+ self.g = self.H[6]
self.h = self.H[7]
-
-
+
+
def _update_digest(self):
self.H[0] = (self.H[0] + self.a) & MAX_64BIT
self.H[1] = (self.H[1] + self.b) & MAX_64BIT
@@ -216,7 +216,7 @@ class SHA512():
else:
tmp_w = (self._delta1(self.W[14]) +
- self.W[9] +
+ self.W[9] +
self._delta0(self.W[1]) +
self.W[0]) & MAX_64BIT
for i in range(15):
@@ -251,10 +251,20 @@ class SHA512():
def _delta1(self, x):
return (self._rotr64(x, 19) ^ self._rotr64(x, 61) ^ self._shr64(x, 6))
-
+
def _T1(self, e, f, g, h, k, w):
- return (h + self._sigma1(e) + self._Ch(e, f, g) + k + w) & MAX_64BIT
+ T1 = (h + self._sigma1(e) + self._Ch(e, f, g) + k + w) & MAX_64BIT
+
+ if self.verbose:
+ print("Inputs, calculations and result for T1:")
+ print("e = 0x%016x, f = 0x%016x, g = 0x%016x, h = 0x%016x" % (e, f, g, h))
+ print("k = 0x%016x, w = 0x%016x" % (k, w))
+ print("Ch = 0x%016x, sigma1 = 0x%016x" % (self._Ch(e, f, g), self._sigma1(e)))
+ print("T1 = 0x%016x" % (T1))
+ print("")
+
+ return T1
def _T2(self, a, b, c):
@@ -264,11 +274,16 @@ class SHA512():
def _rotr64(self, n, r):
return ((n >> r) | (n << (64 - r))) & MAX_64BIT
-
+
def _shr64(self, n, r):
return (n >> r)
+#-------------------------------------------------------------------
+# compare_digests()
+#
+# Compare if two given digests are equal or not.
+#-------------------------------------------------------------------
def compare_digests(digest, expected):
if (digest != expected):
print("Error:")
@@ -278,8 +293,8 @@ def compare_digests(digest, expected):
print(expected)
else:
print("Test case ok.")
-
-
+
+
#-------------------------------------------------------------------
# main()
#
@@ -296,7 +311,7 @@ def main():
0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000018]
-
+
my_sha512 = SHA512(mode = 'MODE_SHA_512', verbose=1);
TC1_expected = [0xDDAF35A193617ABA, 0xCC417349AE204131, 0x12E6FA4E89A97EA2, 0x0A9EEEE64B55D39A,
0x2192992A274FC1A8, 0x36BA3C23A3FEEBBD, 0x454D4423643CE80E, 0x2A9AC94FA54CA49F]
@@ -330,14 +345,14 @@ def main():
my_digest = my_sha512.get_digest()
compare_digests(my_digest, TC4_expected)
-
+
#-------------------------------------------------------------------
# __name__
# Python thingy which allows the file to be run standalone as
# well as parsed from within a Python interpreter.
#-------------------------------------------------------------------
-if __name__=="__main__":
+if __name__=="__main__":
# Run the main function.
sys.exit(main())
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