ハッシュ 
/etc/shadow の Salt
- $1$ : md5
- $2$ ($2a$, $2x$, $2y$) : bcrypt (Blowfish ハッシュ)
- $3$
- $4$
- $5$ : SHA-256bit
- $6$ : SHA-512bit
Counter: 744,
today: 2,
yesterday: 0
Last-modified: 2015-04-25 (Sat) 16:51:43 (JST) (3298d) by iseki
