GregTonoski

#!/bin/bash

# sha256.sh: calculate sha256 checksum for hex string input by user. Hex string must be shorter than 110 nibbles (or 440 bits).

# Example:
# $ BIP39-XOR.sh 000ffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364139

fn_right_rotate_32(){

  FN_RIGHT_ROTATE_32_RESULT=0

GregTonoski

#!/bin/bash

# bip39_eng_words_to_hex.sh: convert BIP39 English words to hexadicimal number (HEX).
# Examples: 
# $ bash bip39_eng_words_to_hex.sh "milk sad wage cup reward umbrella raven visa give list decorate bulb gold raise twenty fly manual stand float super gentle climb fold park"

hex_abandon=0x000
hex_ability=0x001
hex_able=0x002
hex_about=0x003

GregTonoski

#!/bin/bash

# hex_to_bip39.bash: convert a hexadecimal numeral to a sentence of Bitcoin Improvement Proposal 0039 (BIP39) 
# Example:
# $ hex_to_bip39.bash FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140
# $ hex_to_bip39.bash FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140 38

declare hex_string="${1}${2}"
declare -i bits=0
declare -i tempvar=0

GregTonoski

#!/bin/bash

# hex_string_to_bytes.bash: convert a hexadecimal string to bytes.
# Examples:
# $ bash hex_string_to_bytes FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140
# $ bash hex_string_to_bytes FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140 > output_file.bin

export LC_ALL=C
hex_string="$1"

GregTonoski

#!/bin/bash

# file_as_hex.bash: display file content as hexadecimal string.
# Examples: 
# $ bash file_as_hex.bash input_file.bin

export LC_ALL=C
exec 7< $1

while IFS= read -n 1 -d '' -r -u 7; do

GregTonoski

#!/bin/bash

# hex_to_base36.bash: convert a number from base16 (hex) to base36 numeral.
# Examples: 
# $ bash hex_to_base36.bash FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140

declare STRING_HEX_INPUT="$1"
declare -i -r DIVISOR=36
declare -i -r FROM_BASE=256
declare dividend=${STRING_HEX_INPUT}

GregTonoski

#!/bin/bash

# base36_to_hex.bash: convert a number from base36 to base16 (hexadecimal) numeral.
# Examples: 
# $ bash base36_to_hex.bash ZYXWVTSRQPONMLKJIHGFEDCBA9876543210

declare STRING_BASE36_INPUT="$1"
declare -i -r FROM_BASE=36
declare -i -r DIVISOR=16
declare dividend=${STRING_BASE36_INPUT}

GregTonoski

#!/bin/bash

# Bitcoin_WIF_into_hex.bash: convert from Bitcoin Wallet Import Format (WIF) to hexadicimal number (HEX)
# Examples: 
# $ bash Bitcoin_WIF_into_hex.bash "L3wB8ytuxNS3SPX2CJnHqK48Zzqj1AnayDTrJomvNPDxuKvHyvpT" > private_key_bitcoin.hex
# $ bash Bitcoin_WIF_into_hex.bash "xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U"
# $ zsh Bitcoin_WIF_into_hex.bash $(< private_key_bitcoin.wif )

declare INPUT_STRING_WIF="$1"
declare -i -r FROM_BASE=58

GregTonoski

#!/bin/bash

# bxor.bash: bitwise exclusive OR (XOR) of two numbers represented in hexadecimal numerals. Result is padded with leading zeros if the number is smaller than 2**256.
# The script could be used to encrypt or decrypt (Vernam cipher).
# Examples: 
# $ bash bxor.bash "000ffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364139" "fedc09"
# $ for i in {1..8}; do printf "%08X" "$SRANDOM" >> b256random.key; done && bash ./bxor.bash 012345b $( < b256random.key )
# $ head -c 32 /dev/random >> b256random.key && bash ./bxor.bash $( head -c 32 plaindata.bin | basenc --base16 -w 0 ) $( basenc --base16 -w 0 < b256random.key )
# $ zsh bxor.bash "ffff" "011"
# $ sh bxor.bash "ffff" "011"

GregTonoski

#!/bin/bash

# private_key_into_bitcoin_wif.sh: convert secp256k1 private key in hexadicimal number (HEX) to Bitcoin Wallet Import Format (WIF)
# Examples: 
# $ bash private_key_into_bitcoin_wif.sh "000ffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364139" > private_key_bitcoin.wif
# $ bash private_key_into_bitcoin_wif.sh $(< input_file.txt) > private_key_bitcoin.wif
# $ cat priv_key.txt | xargs bash private_key_into_bitcoin_wif.sh > private_key_bitcoin.wif
# $ bash private_key_into_bitcoin_wif.sh fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364139 | echo "$(cat) importedkeylabel false" | xargs bitcoin-cli importprivkey && bitcoin-cli getaddressesbylabel importedkeylabel
# $ openssl rand -hex 32 | xargs bash private_key_into_bitcoin_wif.sh
# $ xxd -l 32 -p -c 32 /dev/random | xargs bash private_key_into_bitcoin_wif.sh