MD5/Implementation: Difference between revisions
Added Wren
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puts "“$string” -> [md5::md5 $string] (officially: $hash)"
}</lang>
=={{header|Wren}}==
{{libheader|Wren-fmt}}
This is a translation of the C code [https://github.com/pod32g/MD5/blob/master/md5.c#L123 here]. In the interests of brevity, the original comments have been omitted.
<lang ecmascript>import "/fmt" for Fmt
var k = [
0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee ,
0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501 ,
0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be ,
0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821 ,
0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa ,
0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8 ,
0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed ,
0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a ,
0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c ,
0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70 ,
0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05 ,
0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665 ,
0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039 ,
0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1 ,
0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1 ,
0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
]
var r = [
7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22,
5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20,
4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23,
6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21
]
var leftRotate = Fn.new { |x, c| (x << c) | (x >> (32 - c)) }
var toBytes = Fn.new { |val|
var bytes = List.filled(4, 0)
bytes[0] = val & 255
bytes[1] = (val >> 8) & 255
bytes[2] = (val >> 16) & 255
bytes[3] = (val >> 24) & 255
return bytes
}
var toInt = Fn.new { |bytes| bytes[0] | bytes[1] << 8 | bytes[2] << 16 | bytes[3] << 24 }
var md5 = Fn.new { |initMsg|
var h0 = 0x67452301
var h1 = 0xefcdab89
var h2 = 0x98badcfe
var h3 = 0x10325476
var initBytes = initMsg.bytes
var initLen = initBytes.count
var newLen = initLen + 1
while (newLen % 64 != 56) newLen = newLen + 1
var msg = List.filled(newLen + 8, 0)
for (i in 0...initLen) msg[i] = initBytes[i]
msg[initLen] = 0x80 // remaining bytes already 0
var lenBits = toBytes.call(initLen * 8)
for (i in newLen...newLen+4) msg[i] = lenBits[i-newLen]
var extraBits = toBytes.call(initLen >> 29)
for (i in newLen+4...newLen+8) msg[i] = extraBits[i-newLen-4]
var offset = 0
var w = List.filled(16, 0)
while (offset < newLen) {
for (i in 0...16) w[i] = toInt.call(msg[offset+i*4...offset + i*4 + 4])
var a = h0
var b = h1
var c = h2
var d = h3
var f
var g
for (i in 0...64) {
if (i < 16) {
f = (b & c) | ((~b) & d)
g = i
} else if (i < 32) {
f = (d & b) | ((~d) & c)
g = (5*i + 1) % 16
} else if (i < 48) {
f = b ^ c ^ d
g = (3*i + 5) % 16
} else {
f = c ^ (b | (~d))
g = (7*i) % 16
}
var temp = d
d = c
c = b
b = b + leftRotate.call((a + f + k[i] + w[g]), r[i])
a = temp
}
h0 = h0 + a
h1 = h1 + b
h2 = h2 + c
h3 = h3 + d
offset = offset + 64
}
var digest = List.filled(16, 0)
var dBytes = toBytes.call(h0)
for (i in 0...4) digest[i] = dBytes[i]
dBytes = toBytes.call(h1)
for (i in 0...4) digest[i+4] = dBytes[i]
dBytes = toBytes.call(h2)
for (i in 0...4) digest[i+8] = dBytes[i]
dBytes = toBytes.call(h3)
for (i in 0...4) digest[i+12] = dBytes[i]
return digest
}
var strings = [
"",
"a",
"abc",
"message digest",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"12345678901234567890123456789012345678901234567890123456789012345678901234567890",
]
for (s in strings) {
var digest = md5.call(s)
Fmt.print("0x$s <== '$0s'", Fmt.v("xz", 2, digest, 0, "", ""), s)
}</lang>
{{out}}
<pre>
0xd41d8cd98f00b204e9800998ecf8427e <== ''
0x0cc175b9c0f1b6a831c399e269772661 <== 'a'
0x900150983cd24fb0d6963f7d28e17f72 <== 'abc'
0xf96b697d7cb7938d525a2f31aaf161d0 <== 'message digest'
0xc3fcd3d76192e4007dfb496cca67e13b <== 'abcdefghijklmnopqrstuvwxyz'
0xd174ab98d277d9f5a5611c2c9f419d9f <== 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
0x57edf4a22be3c955ac49da2e2107b67a <== '12345678901234567890123456789012345678901234567890123456789012345678901234567890'
</pre>
=={{header|x86 Assembly}}==
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