* HASH 遊び [#bc41be9f]
** sha1 [#n0299a00]
php -r 'echo sha1("engineering");'
echo -n 'engineering' | perl -lne 'use Digest::SHA1 qw(sha1_hex); print sha1_hex("$_")'
perl -le 'use Digest::SHA1 qw(sha1_hex); print sha1_hex("engineering");'
echo -n 'engineering' | openssl dgst -sha1
---
72917ef6c1d976fb7d5e3e52394a829d441ed3cd
** md5 [#a1f769f3]
php -r 'echo md5("engineering");'
echo -n 'engineering' | perl -lne 'use Digest::MD5 qw(md5_hex); print md5_hex("$_")'
perl -le 'use Digest::MD5 qw(md5_hex); print md5_hex("engineering");'
echo -n 'engineering'| openssl dgst -md5
---
5d554bc5f3d2cd182cdd0952b1fb87ca
** base64 [#n461e6fd]
$ echo engineering |base64
ZW5naW5lZXJpbmcK
$ echo ZW5naW5lZXJpbmcK |base64 -d
engineering
$ echo http://tomocha.net/ | base64
aHR0cDovL3RvbW9jaGEubmV0Lwo=
$ echo aHR0cDovL3RvbW9jaGEubmV0Lwo= |base64 -d
http://tomocha.net/
** hex [#j826bff3]
echo -n 'engineering' | perl -lne 'print unpack("H*", $_)'
perl -le 'print unpack("H*","engineering");'
---
656e67696e656572696e67
逆
echo '656e67696e656572696e67' | perl -lne 'print pack("H*", $_)'
perl -le 'print pack("H*", "656e67696e656572696e67")'
その他
- [[Linux/hexへの変換方法]]
* デコード(というよりCrack) [#d938c905]
- http://passcracking.com/
- http://www.cmd5.org/
- http://www.freerainbowtables.com/
- http://rainbowtables.shmoo.com/
- http://lastbit.com/md5password/default.asp
- http://www.stottmeister.com/blog/2009/04/14/how-to-crack-md5-passwords/
- http://bogus.jp/pukiwiki/index.php?%A5%D1%A5%B9%A5%AF%A5%E9%A5%C3%A5%AF
* OpenSSL をつかう。 [#g68f7949]
openssl には次のアルゴリズムが対応している。
options are
-c to output the digest with separating colons
-d to output debug info
-hex output as hex dump
-binary output in binary form
-sign file sign digest using private key in file
-verify file verify a signature using public key in file
-prverify file verify a signature using private key in file
-keyform arg key file format (PEM or ENGINE)
-signature file signature to verify
-binary output in binary form
-engine e use engine e, possibly a hardware device.
-md5 to use the md5 message digest algorithm (default)
-md4 to use the md4 message digest algorithm
-md2 to use the md2 message digest algorithm
-sha1 to use the sha1 message digest algorithm
-sha to use the sha message digest algorithm
-sha224 to use the sha224 message digest algorithm
-sha256 to use the sha256 message digest algorithm
-sha384 to use the sha384 message digest algorithm
-sha512 to use the sha512 message digest algorithm
-mdc2 to use the mdc2 message digest algorithm
-ripemd160 to use the ripemd160 message digest algorithm
使い方は簡単。
# echo -n 'engineering' | openssl dgst <algorithm>
