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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/vlib/crypto/md5/md5block_generic.v
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Adds most of the toolsHEADmaster
Diffstat (limited to 'v_windows/v/vlib/crypto/md5/md5block_generic.v')
-rw-r--r--v_windows/v/vlib/crypto/md5/md5block_generic.v132
1 files changed, 132 insertions, 0 deletions
diff --git a/v_windows/v/vlib/crypto/md5/md5block_generic.v b/v_windows/v/vlib/crypto/md5/md5block_generic.v
new file mode 100644
index 0000000..ebc4a8d
--- /dev/null
+++ b/v_windows/v/vlib/crypto/md5/md5block_generic.v
@@ -0,0 +1,132 @@
+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+
+// This is the generic version with no architecture optimizations.
+// In its own file so that an architecture
+// optimized verision can be substituted
+
+module md5
+
+import math.bits
+import encoding.binary
+
+fn block_generic(mut dig Digest, p []byte) {
+ // load state
+ mut a := dig.s[0]
+ mut b := dig.s[1]
+ mut c := dig.s[2]
+ mut d := dig.s[3]
+
+ for i := 0; i <= p.len - block_size; i += block_size {
+ mut q := p[i..]
+ q = q[..block_size]
+ // save current state
+ aa := a
+ bb := b
+ cc := c
+ dd := d
+
+ // load input block
+ x0 := binary.little_endian_u32(q[4 * 0x0..])
+ x1 := binary.little_endian_u32(q[4 * 0x1..])
+ x2 := binary.little_endian_u32(q[4 * 0x2..])
+ x3 := binary.little_endian_u32(q[4 * 0x3..])
+ x4 := binary.little_endian_u32(q[4 * 0x4..])
+ x5 := binary.little_endian_u32(q[4 * 0x5..])
+ x6 := binary.little_endian_u32(q[4 * 0x6..])
+ x7 := binary.little_endian_u32(q[4 * 0x7..])
+ x8 := binary.little_endian_u32(q[4 * 0x8..])
+ x9 := binary.little_endian_u32(q[4 * 0x9..])
+ xa := binary.little_endian_u32(q[4 * 0xa..])
+ xb := binary.little_endian_u32(q[4 * 0xb..])
+ xc := binary.little_endian_u32(q[4 * 0xc..])
+ xd := binary.little_endian_u32(q[4 * 0xd..])
+ xe := binary.little_endian_u32(q[4 * 0xe..])
+ xf := binary.little_endian_u32(q[4 * 0xf..])
+
+ // round 1
+ a = b + bits.rotate_left_32((((c ^ d) & b) ^ d) + a + x0 + u32(0xd76aa478), 7)
+ d = a + bits.rotate_left_32((((b ^ c) & a) ^ c) + d + x1 + u32(0xe8c7b756), 12)
+ c = d + bits.rotate_left_32((((a ^ b) & d) ^ b) + c + x2 + u32(0x242070db), 17)
+ b = c + bits.rotate_left_32((((d ^ a) & c) ^ a) + b + x3 + u32(0xc1bdceee), 22)
+ a = b + bits.rotate_left_32((((c ^ d) & b) ^ d) + a + x4 + u32(0xf57c0faf), 7)
+ d = a + bits.rotate_left_32((((b ^ c) & a) ^ c) + d + x5 + u32(0x4787c62a), 12)
+ c = d + bits.rotate_left_32((((a ^ b) & d) ^ b) + c + x6 + u32(0xa8304613), 17)
+ b = c + bits.rotate_left_32((((d ^ a) & c) ^ a) + b + x7 + u32(0xfd469501), 22)
+ a = b + bits.rotate_left_32((((c ^ d) & b) ^ d) + a + x8 + u32(0x698098d8), 7)
+ d = a + bits.rotate_left_32((((b ^ c) & a) ^ c) + d + x9 + u32(0x8b44f7af), 12)
+ c = d + bits.rotate_left_32((((a ^ b) & d) ^ b) + c + xa + u32(0xffff5bb1), 17)
+ b = c + bits.rotate_left_32((((d ^ a) & c) ^ a) + b + xb + u32(0x895cd7be), 22)
+ a = b + bits.rotate_left_32((((c ^ d) & b) ^ d) + a + xc + u32(0x6b901122), 7)
+ d = a + bits.rotate_left_32((((b ^ c) & a) ^ c) + d + xd + u32(0xfd987193), 12)
+ c = d + bits.rotate_left_32((((a ^ b) & d) ^ b) + c + xe + u32(0xa679438e), 17)
+ b = c + bits.rotate_left_32((((d ^ a) & c) ^ a) + b + xf + u32(0x49b40821), 22)
+
+ // round 2
+ a = b + bits.rotate_left_32((((b ^ c) & d) ^ c) + a + x1 + u32(0xf61e2562), 5)
+ d = a + bits.rotate_left_32((((a ^ b) & c) ^ b) + d + x6 + u32(0xc040b340), 9)
+ c = d + bits.rotate_left_32((((d ^ a) & b) ^ a) + c + xb + u32(0x265e5a51), 14)
+ b = c + bits.rotate_left_32((((c ^ d) & a) ^ d) + b + x0 + u32(0xe9b6c7aa), 20)
+ a = b + bits.rotate_left_32((((b ^ c) & d) ^ c) + a + x5 + u32(0xd62f105d), 5)
+ d = a + bits.rotate_left_32((((a ^ b) & c) ^ b) + d + xa + u32(0x02441453), 9)
+ c = d + bits.rotate_left_32((((d ^ a) & b) ^ a) + c + xf + u32(0xd8a1e681), 14)
+ b = c + bits.rotate_left_32((((c ^ d) & a) ^ d) + b + x4 + u32(0xe7d3fbc8), 20)
+ a = b + bits.rotate_left_32((((b ^ c) & d) ^ c) + a + x9 + u32(0x21e1cde6), 5)
+ d = a + bits.rotate_left_32((((a ^ b) & c) ^ b) + d + xe + u32(0xc33707d6), 9)
+ c = d + bits.rotate_left_32((((d ^ a) & b) ^ a) + c + x3 + u32(0xf4d50d87), 14)
+ b = c + bits.rotate_left_32((((c ^ d) & a) ^ d) + b + x8 + u32(0x455a14ed), 20)
+ a = b + bits.rotate_left_32((((b ^ c) & d) ^ c) + a + xd + u32(0xa9e3e905), 5)
+ d = a + bits.rotate_left_32((((a ^ b) & c) ^ b) + d + x2 + u32(0xfcefa3f8), 9)
+ c = d + bits.rotate_left_32((((d ^ a) & b) ^ a) + c + x7 + u32(0x676f02d9), 14)
+ b = c + bits.rotate_left_32((((c ^ d) & a) ^ d) + b + xc + u32(0x8d2a4c8a), 20)
+
+ // round 3
+ a = b + bits.rotate_left_32((b ^ c ^ d) + a + x5 + u32(0xfffa3942), 4)
+ d = a + bits.rotate_left_32((a ^ b ^ c) + d + x8 + u32(0x8771f681), 11)
+ c = d + bits.rotate_left_32((d ^ a ^ b) + c + xb + u32(0x6d9d6122), 16)
+ b = c + bits.rotate_left_32((c ^ d ^ a) + b + xe + u32(0xfde5380c), 23)
+ a = b + bits.rotate_left_32((b ^ c ^ d) + a + x1 + u32(0xa4beea44), 4)
+ d = a + bits.rotate_left_32((a ^ b ^ c) + d + x4 + u32(0x4bdecfa9), 11)
+ c = d + bits.rotate_left_32((d ^ a ^ b) + c + x7 + u32(0xf6bb4b60), 16)
+ b = c + bits.rotate_left_32((c ^ d ^ a) + b + xa + u32(0xbebfbc70), 23)
+ a = b + bits.rotate_left_32((b ^ c ^ d) + a + xd + u32(0x289b7ec6), 4)
+ d = a + bits.rotate_left_32((a ^ b ^ c) + d + x0 + u32(0xeaa127fa), 11)
+ c = d + bits.rotate_left_32((d ^ a ^ b) + c + x3 + u32(0xd4ef3085), 16)
+ b = c + bits.rotate_left_32((c ^ d ^ a) + b + x6 + u32(0x04881d05), 23)
+ a = b + bits.rotate_left_32((b ^ c ^ d) + a + x9 + u32(0xd9d4d039), 4)
+ d = a + bits.rotate_left_32((a ^ b ^ c) + d + xc + u32(0xe6db99e5), 11)
+ c = d + bits.rotate_left_32((d ^ a ^ b) + c + xf + u32(0x1fa27cf8), 16)
+ b = c + bits.rotate_left_32((c ^ d ^ a) + b + x2 + u32(0xc4ac5665), 23)
+
+ // round 4
+ a = b + bits.rotate_left_32((c ^ (b | ~d)) + a + x0 + u32(0xf4292244), 6)
+ d = a + bits.rotate_left_32((b ^ (a | ~c)) + d + x7 + u32(0x432aff97), 10)
+ c = d + bits.rotate_left_32((a ^ (d | ~b)) + c + xe + u32(0xab9423a7), 15)
+ b = c + bits.rotate_left_32((d ^ (c | ~a)) + b + x5 + u32(0xfc93a039), 21)
+ a = b + bits.rotate_left_32((c ^ (b | ~d)) + a + xc + u32(0x655b59c3), 6)
+ d = a + bits.rotate_left_32((b ^ (a | ~c)) + d + x3 + u32(0x8f0ccc92), 10)
+ c = d + bits.rotate_left_32((a ^ (d | ~b)) + c + xa + u32(0xffeff47d), 15)
+ b = c + bits.rotate_left_32((d ^ (c | ~a)) + b + x1 + u32(0x85845dd1), 21)
+ a = b + bits.rotate_left_32((c ^ (b | ~d)) + a + x8 + u32(0x6fa87e4f), 6)
+ d = a + bits.rotate_left_32((b ^ (a | ~c)) + d + xf + u32(0xfe2ce6e0), 10)
+ c = d + bits.rotate_left_32((a ^ (d | ~b)) + c + x6 + u32(0xa3014314), 15)
+ b = c + bits.rotate_left_32((d ^ (c | ~a)) + b + xd + u32(0x4e0811a1), 21)
+ a = b + bits.rotate_left_32((c ^ (b | ~d)) + a + x4 + u32(0xf7537e82), 6)
+ d = a + bits.rotate_left_32((b ^ (a | ~c)) + d + xb + u32(0xbd3af235), 10)
+ c = d + bits.rotate_left_32((a ^ (d | ~b)) + c + x2 + u32(0x2ad7d2bb), 15)
+ b = c + bits.rotate_left_32((d ^ (c | ~a)) + b + x9 + u32(0xeb86d391), 21)
+
+ // add saved state
+ a += aa
+ b += bb
+ c += cc
+ d += dd
+ }
+
+ // save state
+ dig.s[0] = a
+ dig.s[1] = b
+ dig.s[2] = c
+ dig.s[3] = d
+}