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-rw-r--r--md5bash.sh79
1 files changed, 0 insertions, 79 deletions
diff --git a/md5bash.sh b/md5bash.sh
deleted file mode 100644
index 9a2ed8f..0000000
--- a/md5bash.sh
+++ /dev/null
@@ -1,79 +0,0 @@
-#!/bin/bash
-
-# read in the input string from command line arguments
-input=$1
-
-# pad the input string with a single "1" bit
-padded_input="$input"$(echo -ne '\x80')
-
-# pad the input string to a multiple of 512 bits (64 bytes)
-while (( $(echo -n "$padded_input" | wc -c) % 64 != 56 ))
-do
- padded_input="$padded_input"$(echo -ne '\x00')
-done
-
-# append the length of the input string (in bits) as a 64-bit little-endian integer
-length=$(echo -n "$input" | wc -c)
-length=$(echo "obase=16; $length * 8" | bc | xxd -p -c 16 | tac | tr -d '\n')
-while (( $(echo -n "$length" | wc -c) < 16 ))
-do
- length="$length"0
-done
-padded_input="$padded_input"$(echo -ne "$length" | xxd -r -p)
-
-# initialize the buffer (A, B, C, D)
-A="67452301"
-B="efcdab89"
-C="98badcfe"
-D="10325476"
-
-# process the input in 512-bit (64-byte) chunks
-for (( i=0; i<$(echo -n "$padded_input" | wc -c)/64; i++ ))
-do
- chunk=$(echo -n "$padded_input" | dd bs=64 skip=$i count=1 2>/dev/null | xxd -p -c 64)
-
- # initialize the message schedule (M)
- M=()
- for (( j=0; j<16; j++ ))
- do
- word=$(echo -ne "${chunk:$j*8:8}" | xxd -r -p | od -An -tu4 -v)
- M+=($word)
- done
- for (( j=16; j<64; j++ ))
- do
- word1=${M[j-15]}
- s0=$(( (word1>>7 | word1<<25) ^ (word1>>18 | word1<<14) ^ (word1>>3) ))
-
- word2=${M[j-2]}
- s1=$(( (word2>>17 | word2<<15) ^ (word2>>19 | word2<<13) ^ (word2>>10) ))
-
- M+=($((M[j-16] + s0 + M[j-7] + s1)))
- done
-
- # initialize the working variables
- AA=$A
- BB=$B
- CC=$C
- DD=$D
-
- # round 1
- for (( j=0; j<16; j++ ))
- do
- F=$(( (B & C) | (~B & D) ))
- g=$j
- dTemp=$((D))
- D=$((C))
- C=$((B))
- B=$((B + ((A + F + M[g] + 0xd76aa478) & 0xffffffff)))
- A=$((dTemp))
- done
-
- # round 2
- for (( j=16; j<32; j++ ))
- do
- F=$(( (D & B) | (~D & C) ))
- g=$(( (5*j + 1) % 16 ))
- dTemp=$((D))
- D=$((C))
- C=$((B))
-